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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Fix NULL pointer dereference in virtiofs
- Fix slab OOB access in hfs/hfsplus
- Only create /proc/fs/netfs when CONFIG_PROC_FS is set
- Fix getname_flags() to initialize pointer correctly
- Convert dentry flags to enum
- Don't allow datadir without lowerdir in overlayfs
- Use namespace_{lock,unlock} helpers in dissolve_on_fput() instead of
plain namespace_sem so unmounted mounts are properly cleaned up
- Skip unnecessary ifs_block_is_uptodate check in iomap
- Remove an unused forward declaration in overlayfs
- Fix devpts uid/gid handling after converting to the new mount api
- Fix afs_dynroot_readdir() to not use the RCU read lock
- Fix mount_setattr() and open_tree_attr() to not pointlessly do path
lookup or walk the mount tree if no mount option change has been
requested
* tag 'vfs-6.15-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: use namespace_{lock,unlock} in dissolve_on_fput()
iomap: skip unnecessary ifs_block_is_uptodate check
fs: Fix filename init after recent refactoring
netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS
mount: ensure we don't pointlessly walk the mount tree
dcache: convert dentry flag macros to enum
afs: Fix afs_dynroot_readdir() to not use the RCU read lock
hfs/hfsplus: fix slab-out-of-bounds in hfs_bnode_read_key
virtiofs: add filesystem context source name check
devpts: Fix type for uid and gid params
ovl: remove unused forward declaration
ovl: don't allow datadir only
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Commit 9748cb2dc393 ("VFS: repack DENTRY_ flags.") changed the value of
DCACHE_MOUNTED, which broke drgn's path_lookup() helper. drgn is forced
to hard-code it because it's a macro, and macros aren't preserved in
debugging information by default.
Enums, on the other hand, are included in debugging information. Convert
the DCACHE_* flag macros to an enum so that debugging tools like drgn
and bpftrace can make use of them.
Link: https://github.com/osandov/drgn/blob/2027d0fea84d74b835e77392f7040c2a333180c6/drgn/helpers/linux/fs.py#L43-L46
Signed-off-by: Omar Sandoval <osandov@fb.com>
Link: https://lore.kernel.org/177665a082f048cf536b9cd6af467b3be6b6e6ed.1744141838.git.osandov@fb.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc irqchip fixes from Ingo Molnar:
- Fix NULL pointer dereference crashes due to missing .chip_flags setup
in the sg2042-msi and irq-bcm2712-mip irqchip drivers
- Remove the davinci aintc irqchip driver's leftover header too
* tag 'irq-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-bcm2712-mip: Set EOI/ACK flags in msi_parent_ops
irqchip/sg2042-msi: Add missing chip flags
irqchip/davinci: Remove leftover header
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc timer fixes from Ingo Molnar:
- Fix missing ACCESS_PRIVATE() that triggered a Sparse warning
- Fix lockdep false positive in tick_freeze() on CONFIG_PREEMPT_RT=y
- Avoid <vdso/unaligned.h> macro's variable shadowing to address build
warning that triggers under W=2 builds
* tag 'timers-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
vdso: Address variable shadowing in macros
timekeeping: Add a lockdep override in tick_freeze()
hrtimer: Add missing ACCESS_PRIVATE() for hrtimer::function
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc perf events fixes from Ingo Molnar:
- Fix __free_event() corner case splat
- Fix false-positive uprobes related lockdep splat on
CONFIG_PREEMPT_RT=y kernels
- Fix a complicated perf sigtrap race that may result in hangs
* tag 'perf-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix hang while freeing sigtrap event
uprobes: Avoid false-positive lockdep splat on CONFIG_PREEMPT_RT=y in the ri_timer() uprobe timer callback, use raw_write_seqcount_*()
perf/core: Fix WARN_ON(!ctx) in __free_event() for partial init
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter.
Current release - regressions:
- core: hold instance lock during NETDEV_CHANGE
- rtnetlink: fix bad unlock balance in do_setlink()
- ipv6:
- fix null-ptr-deref in addrconf_add_ifaddr()
- align behavior across nexthops during path selection
Previous releases - regressions:
- sctp: prevent transport UaF in sendmsg
- mptcp: only inc MPJoinAckHMacFailure for HMAC failures
Previous releases - always broken:
- sched:
- make ->qlen_notify() idempotent
- ensure sufficient space when sending filter netlink notifications
- sch_sfq: really don't allow 1 packet limit
- netfilter: fix incorrect avx2 match of 5th field octet
- tls: explicitly disallow disconnect
- eth: octeontx2-pf: fix VF root node parent queue priority"
* tag 'net-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits)
ethtool: cmis_cdb: Fix incorrect read / write length extension
selftests: netfilter: add test case for recent mismatch bug
nft_set_pipapo: fix incorrect avx2 match of 5th field octet
net: ppp: Add bound checking for skb data on ppp_sync_txmung
net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.
ipv6: Align behavior across nexthops during path selection
net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY
net: phy: move phy_link_change() prior to mdio_bus_phy_may_suspend()
selftests/tc-testing: sfq: check that a derived limit of 1 is rejected
net_sched: sch_sfq: move the limit validation
net_sched: sch_sfq: use a temporary work area for validating configuration
net: libwx: handle page_pool_dev_alloc_pages error
selftests: mptcp: validate MPJoin HMacFailure counters
mptcp: only inc MPJoinAckHMacFailure for HMAC failures
rtnetlink: Fix bad unlock balance in do_setlink().
net: ethtool: Don't call .cleanup_data when prepare_data fails
tc: Ensure we have enough buffer space when sending filter netlink notifications
net: libwx: Fix the wrong Rx descriptor field
octeontx2-pf: qos: fix VF root node parent queue index
selftests: tls: check that disconnect does nothing
...
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix resource handling in gpio-tegra186
- fix wakeup source leaks in gpio-mpc8xxx and gpio-zynq
- fix minor issues with some GPIO OF quirks
- deprecate GPIOD_FLAGS_BIT_NONEXCLUSIVE and devm_gpiod_unhinge()
symbols and add a TODO task to track replacing them with a better
solution
* tag 'gpio-fixes-for-v6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpiolib: of: Move Atmel HSMCI quirk up out of the regulator comment
gpiolib: of: Fix the choice for Ingenic NAND quirk
gpio: zynq: Fix wakeup source leaks on device unbind
gpio: mpc8xxx: Fix wakeup source leaks on device unbind
gpio: TODO: track the removal of regulator-related workarounds
MAINTAINERS: add more keywords for the GPIO subsystem entry
gpio: deprecate devm_gpiod_unhinge()
gpio: deprecate the GPIOD_FLAGS_BIT_NONEXCLUSIVE flag
gpio: tegra186: fix resource handling in ACPI probe path
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fixes from Miquel Raynal:
"Two important fixes: the build of the SPI NAND layer with old GCC
versions as well as the fix of the Qpic Makefile which was wrong in
the first place.
There are also two smaller fixes about a missing error and status
check"
* tag 'mtd/fixes-for-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spinand: Fix build with gcc < 7.5
mtd: rawnand: Add status chack in r852_ready()
mtd: inftlcore: Add error check for inftl_read_oob()
mtd: nand: Drop explicit test for built-in CONFIG_SPI_QPIC_SNAND
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The "function" field of struct hrtimer has been changed to private, but
two instances have not been converted to use ACCESS_PRIVATE().
Convert them to use ACCESS_PRIVATE().
Fixes: 04257da0c99c ("hrtimers: Make callback function pointer private")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250408103854.1851093-1-namcao@linutronix.de
Closes: https://lore.kernel.org/oe-kbuild-all/202504071931.vOVl13tt-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202504072155.5UAZjYGU-lkp@intel.com/
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk
stage-1 page tables) to align with the architecture. This avoids
possibly taking an SEA at EL2 on the page table walk or using an
architecturally UNKNOWN fault IPA
- Use acquire/release semantics in the KVM FF-A proxy to avoid
reading a stale value for the FF-A version
- Fix KVM guest driver to match PV CPUID hypercall ABI
- Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM
selftests, which is the only memory type for which atomic
instructions are architecturally guaranteed to work
s390:
- Don't use %pK for debug printing and tracepoints
x86:
- Use a separate subclass when acquiring KVM's per-CPU posted
interrupts wakeup lock in the scheduled out path, i.e. when adding
a vCPU on the list of vCPUs to wake, to workaround a false positive
deadlock. The schedule out code runs with a scheduler lock that the
wakeup handler takes in the opposite order; but it does so with
IRQs disabled and cannot run concurrently with a wakeup
- Explicitly zero-initialize on-stack CPUID unions
- Allow building irqbypass.ko as as module when kvm.ko is a module
- Wrap relatively expensive sanity check with KVM_PROVE_MMU
- Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
selftests:
- Add more scenarios to the MONITOR/MWAIT test
- Add option to rseq test to override /dev/cpu_dma_latency
- Bring list of exit reasons up to date
- Cleanup Makefile to list once tests that are valid on all
architectures
Other:
- Documentation fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits)
KVM: arm64: Use acquire/release to communicate FF-A version negotiation
KVM: arm64: selftests: Explicitly set the page attrs to Inner-Shareable
KVM: arm64: selftests: Introduce and use hardware-definition macros
KVM: VMX: Use separate subclasses for PI wakeup lock to squash false positive
KVM: VMX: Assert that IRQs are disabled when putting vCPU on PI wakeup list
KVM: x86: Explicitly zero-initialize on-stack CPUID unions
KVM: Allow building irqbypass.ko as as module when kvm.ko is a module
KVM: x86/mmu: Wrap sanity check on number of TDP MMU pages with KVM_PROVE_MMU
KVM: selftests: Add option to rseq test to override /dev/cpu_dma_latency
KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
Documentation: kvm: remove KVM_CAP_MIPS_TE
Documentation: kvm: organize capabilities in the right section
Documentation: kvm: fix some definition lists
Documentation: kvm: drop "Capability" heading from capabilities
Documentation: kvm: give correct name for KVM_CAP_SPAPR_MULTITCE
Documentation: KVM: KVM_GET_SUPPORTED_CPUID now exposes TSC_DEADLINE
selftests: kvm: list once tests that are valid on all architectures
selftests: kvm: bring list of exit reasons up to date
selftests: kvm: revamp MONITOR/MWAIT tests
KVM: arm64: Don't translate FAR if invalid/unsafe
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
- A number of cpuset remote partition related fixes and cleanups along
with selftest updates.
- A change from this merge window made cgroup_rstat_updated_list()
called outside cgroup_rstat_lock leading to list corruptions. Fix it
by relocating the call inside the lock.
* tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup/cpuset: Fix race between newly created partition and dying one
cgroup: rstat: call cgroup_rstat_updated_list with cgroup_rstat_lock
selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh
selftest/cgroup: Clean up and restructure test_cpuset_prs.sh
selftest/cgroup: Update test_cpuset_prs.sh to use | as effective CPUs and state separator
cgroup/cpuset: Remove unneeded goto in sched_partition_write() and rename it
cgroup/cpuset: Code cleanup and comment update
cgroup/cpuset: Don't allow creation of local partition over a remote one
cgroup/cpuset: Remove remote_partition_check() & make update_cpumasks_hier() handle remote partition
cgroup/cpuset: Fix error handling in remote_partition_disable()
cgroup/cpuset: Fix incorrect isolated_cpus update in update_parent_effective_cpumask()
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Perf can hang while freeing a sigtrap event if a related deferred
signal hadn't managed to be sent before the file got closed:
perf_event_overflow()
task_work_add(perf_pending_task)
fput()
task_work_add(____fput())
task_work_run()
____fput()
perf_release()
perf_event_release_kernel()
_free_event()
perf_pending_task_sync()
task_work_cancel() -> FAILED
rcuwait_wait_event()
Once task_work_run() is running, the list of pending callbacks is
removed from the task_struct and from this point on task_work_cancel()
can't remove any pending and not yet started work items, hence the
task_work_cancel() failure and the hang on rcuwait_wait_event().
Task work could be changed to remove one work at a time, so a work
running on the current task can always cancel a pending one, however
the wait / wake design is still subject to inverted dependencies when
remote targets are involved, as pictured by Oleg:
T1 T2
fd = perf_event_open(pid => T2->pid); fd = perf_event_open(pid => T1->pid);
close(fd) close(fd)
<IRQ> <IRQ>
perf_event_overflow() perf_event_overflow()
task_work_add(perf_pending_task) task_work_add(perf_pending_task)
</IRQ> </IRQ>
fput() fput()
task_work_add(____fput()) task_work_add(____fput())
task_work_run() task_work_run()
____fput() ____fput()
perf_release() perf_release()
perf_event_release_kernel() perf_event_release_kernel()
_free_event() _free_event()
perf_pending_task_sync() perf_pending_task_sync()
rcuwait_wait_event() rcuwait_wait_event()
Therefore the only option left is to acquire the event reference count
upon queueing the perf task work and release it from the task work, just
like it was done before 3a5465418f5f ("perf: Fix event leak upon exec and file release")
but without the leaks it fixed.
Some adjustments are necessary to make it work:
* A child event might dereference its parent upon freeing. Care must be
taken to release the parent last.
* Some places assuming the event doesn't have any reference held and
therefore can be freed right away must instead put the reference and
let the reference counting to its job.
Reported-by: "Yi Lai" <yi1.lai@linux.intel.com>
Closes: https://lore.kernel.org/all/Zx9Losv4YcJowaP%2F@ly-workstation/
Reported-by: syzbot+3c4321e10eea460eb606@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/673adf75.050a0220.87769.0024.GAE@google.com/
Fixes: 3a5465418f5f ("perf: Fix event leak upon exec and file release")
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20250304135446.18905-1-frederic@kernel.org
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The non-exclusive GPIO request flag looks like a functional feature but
is in fact a workaround for a corner-case that got out of hand. It should
be removed so deprecate it officially so that nobody uses it anymore.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250401-gpio-todo-remove-nonexclusive-v2-1-7c1380797b0d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Cosmin reports an issue with ipv6_add_dev being called from
NETDEV_CHANGE notifier:
[ 3455.008776] ? ipv6_add_dev+0x370/0x620
[ 3455.010097] ipv6_find_idev+0x96/0xe0
[ 3455.010725] addrconf_add_dev+0x1e/0xa0
[ 3455.011382] addrconf_init_auto_addrs+0xb0/0x720
[ 3455.013537] addrconf_notify+0x35f/0x8d0
[ 3455.014214] notifier_call_chain+0x38/0xf0
[ 3455.014903] netdev_state_change+0x65/0x90
[ 3455.015586] linkwatch_do_dev+0x5a/0x70
[ 3455.016238] rtnl_getlink+0x241/0x3e0
[ 3455.019046] rtnetlink_rcv_msg+0x177/0x5e0
Similarly, linkwatch might get to ipv6_add_dev without ops lock:
[ 3456.656261] ? ipv6_add_dev+0x370/0x620
[ 3456.660039] ipv6_find_idev+0x96/0xe0
[ 3456.660445] addrconf_add_dev+0x1e/0xa0
[ 3456.660861] addrconf_init_auto_addrs+0xb0/0x720
[ 3456.661803] addrconf_notify+0x35f/0x8d0
[ 3456.662236] notifier_call_chain+0x38/0xf0
[ 3456.662676] netdev_state_change+0x65/0x90
[ 3456.663112] linkwatch_do_dev+0x5a/0x70
[ 3456.663529] __linkwatch_run_queue+0xeb/0x200
[ 3456.663990] linkwatch_event+0x21/0x30
[ 3456.664399] process_one_work+0x211/0x610
[ 3456.664828] worker_thread+0x1cc/0x380
[ 3456.665691] kthread+0xf4/0x210
Reclassify NETDEV_CHANGE as a notifier that consistently runs under the
instance lock.
Link: https://lore.kernel.org/netdev/aac073de8beec3e531c86c101b274d434741c28e.camel@nvidia.com/
Reported-by: Cosmin Ratiu <cratiu@nvidia.com>
Tested-by: Cosmin Ratiu <cratiu@nvidia.com>
Fixes: ad7c7b2172c3 ("net: hold netdev instance lock during sysfs operations")
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250404161122.3907628-1-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit fa8dede4d0a0 ("irqchip: remove davinci aintc driver") removed the
davinci aintc driver but left behind the associated header. Remove it
now.
Fixes: fa8dede4d0a0 ("irqchip: remove davinci aintc driver")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/all/20250306084552.15894-1-brgl@bgdev.pl
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__VA_OPT__ is a macro that is useful when some arguments can be present
or not to entirely skip some part of a definition. Unfortunately, it
is a too recent addition that some of the still supported old GCC
versions do not know about, and is anyway not part of C11 that is the
version used in the kernel.
Find a trick to remove this macro, typically '__VA_ARGS__ + 0' is a
workaround used in netlink.h which works very well here, as we either
expect:
- 0
- A positive value
- No value, which means the field should be 0.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503181330.YcDXGy7F-lkp@intel.com/
Fixes: 7ce0d16d5802 ("mtd: spinand: Add an optional frequency to read from cache macros")
Cc: stable@vger.kernel.org
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer cleanups from Thomas Gleixner:
"A set of final cleanups for the timer subsystem:
- Convert all del_timer[_sync]() instances over to the new
timer_delete[_sync]() API and remove the legacy wrappers.
Conversion was done with coccinelle plus some manual fixups as
coccinelle chokes on scoped_guard().
- The final cleanup of the hrtimer_init() to hrtimer_setup()
conversion.
This has been delayed to the end of the merge window, so that all
patches which have been merged through other trees are in mainline
and all new users are catched.
Doing this right before rc1 ensures that new code which is merged post
rc1 is not introducing new instances of the original functionality"
* tag 'timers-cleanups-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tracing/timers: Rename the hrtimer_init event to hrtimer_setup
hrtimers: Rename debug_init_on_stack() to debug_setup_on_stack()
hrtimers: Rename debug_init() to debug_setup()
hrtimers: Rename __hrtimer_init_sleeper() to __hrtimer_setup_sleeper()
hrtimers: Remove unnecessary NULL check in hrtimer_start_range_ns()
hrtimers: Make callback function pointer private
hrtimers: Merge __hrtimer_init() into __hrtimer_setup()
hrtimers: Switch to use __htimer_setup()
hrtimers: Delete hrtimer_init()
treewide: Convert new and leftover hrtimer_init() users
treewide: Switch/rename to timer_delete[_sync]()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more irq updates from Thomas Gleixner:
"A set of updates for the interrupt subsystem:
- A treewide cleanup for the irq_domain code, which makes the naming
consistent and gets rid of the original oddity of naming domains
'host'.
This is a trivial mechanical change and is done late to ensure that
all instances have been catched and new code merged post rc1 wont
reintroduce new instances.
- A trivial consistency fix in the migration code
The recent introduction of irq_force_complete_move() in the core
code, causes a problem for the nostalgia crowd who maintains ia64
out of tree.
The code assumes that hierarchical interrupt domains are enabled
and dereferences irq_data::parent_data unconditionally. That works
in mainline because both architectures which enable that code have
hierarchical domains enabled. Though it breaks the ia64 build,
which enables the functionality, but does not have hierarchical
domains.
While it's not really a problem for mainline today, this
unconditional dereference is inconsistent and trivially fixable by
using the existing helper function irqd_get_parent_data(), which
has the appropriate #ifdeffery in place"
* tag 'irq-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/migration: Use irqd_get_parent_data() in irq_force_complete_move()
irqdomain: Stop using 'host' for domain
irqdomain: Rename irq_get_default_host() to irq_get_default_domain()
irqdomain: Rename irq_set_default_host() to irq_set_default_domain()
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Make the struct hrtimer::function field private, to prevent users from
changing this field in an unsafe way. hrtimer_update_function() should be
used if the callback function needs to be changed.
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/7d0e6e0c5c59a64a9bea940051aac05d750bc0c2.1738746927.git.namcao@linutronix.de
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hrtimer_init() is now unused. Delete it.
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/003722f60c7a2a4f8d4ed24fb741aa313b7e5136.1738746927.git.namcao@linutronix.de
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timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.
Conversion was done with coccinelle plus manual fixups where necessary.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter.
Current release - regressions:
- four fixes for the netdev per-instance locking
Current release - new code bugs:
- consolidate more code between existing Rx zero-copy and uring so
that the latter doesn't miss / have to duplicate the safety checks
Previous releases - regressions:
- ipv6: fix omitted Netlink attributes when using SKIP_STATS
Previous releases - always broken:
- net: fix geneve_opt length integer overflow
- udp: fix multiple wrap arounds of sk->sk_rmem_alloc when it
approaches INT_MAX
- dsa: mvpp2: add a lock to avoid corruption of the shared TCAM
- dsa: airoha: fix issues with traffic QoS configuration / offload,
and flow table offload
Misc:
- touch up the Netlink YAML specs of old families to make them usable
for user space C codegen"
* tag 'net-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (56 commits)
selftests: net: amt: indicate progress in the stress test
netlink: specs: rt_route: pull the ifa- prefix out of the names
netlink: specs: rt_addr: pull the ifa- prefix out of the names
netlink: specs: rt_addr: fix get multi command name
netlink: specs: rt_addr: fix the spec format / schema failures
net: avoid false positive warnings in __net_mp_close_rxq()
net: move mp dev config validation to __net_mp_open_rxq()
net: ibmveth: make veth_pool_store stop hanging
arcnet: Add NULL check in com20020pci_probe()
ipv6: Do not consider link down nexthops in path selection
ipv6: Start path selection from the first nexthop
usbnet:fix NPE during rx_complete
net: octeontx2: Handle XDP_ABORTED and XDP invalid as XDP_DROP
net: fix geneve_opt length integer overflow
io_uring/zcrx: fix selftests w/ updated netdev Python helpers
selftests: net: use netdevsim in netns test
docs: net: document netdev notifier expectations
net: dummy: request ops lock
netdevsim: add dummy device notifiers
net: rename rtnl_net_debug to lock_debug
...
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more SoC driver updates from Arnd Bergmann:
"This is the promised follow-up to the soc drivers branch, adding minor
updates to omap and freescale drivers.
Most notably, Ioana Ciornei takes over maintenance of the DPAA bus
driver used in some NXP (originally Freescale) chips"
* tag 'soc-drivers-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
bus: fsl-mc: Remove deadcode
MAINTAINERS: add the linuppc-dev list to the fsl-mc bus entry
MAINTAINERS: fix nonexistent dtbinding file name
MAINTAINERS: add myself as maintainer for the fsl-mc bus
irqdomain: soc: Switch to irq_find_mapping()
Input: tsc2007 - accept standard properties
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It is confusing to see 'host' and 'domain' to be used as 'domain'. Given
this header is all about domains, switch the remaining 'host' uses to
'domain'.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-5-jirislaby@kernel.org
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Naming interrupt domains host is confusing at best and the irqdomain code
uses both domain and host inconsistently.
Therefore rename irq_get_default_host() to irq_get_default_domain().
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-4-jirislaby@kernel.org
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Naming interrupt domains host is confusing at best and the irqdomain code
uses both domain and host inconsistently.
Therefore rename irq_set_default_host() to irq_set_default_domain().
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-3-jirislaby@kernel.org
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soc/drivers-2
FSL SOC Changes for 6.15:
- irqdomain cleanups from Jiry
- Add Ioana as Maintainer of fsl-mc bus and remove Laurentiu and Stuart
- Remove deadcode from fsl-mc bus
* tag 'soc_fsl-6.15-1' of https://github.com/chleroy/linux:
bus: fsl-mc: Remove deadcode
MAINTAINERS: add the linuppc-dev list to the fsl-mc bus entry
MAINTAINERS: fix nonexistent dtbinding file name
MAINTAINERS: add myself as maintainer for the fsl-mc bus
irqdomain: soc: Switch to irq_find_mapping()
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Convert HAVE_KVM_IRQ_BYPASS into a tristate so that selecting
IRQ_BYPASS_MANAGER follows KVM={m,y}, i.e. doesn't force irqbypass.ko to
be built-in.
Note, PPC allows building KVM as a module, but selects HAVE_KVM_IRQ_BYPASS
from a boolean Kconfig, i.e. KVM PPC unnecessarily forces irqbpass.ko to
be built-in. But that flaw is a longstanding PPC specific issue.
Fixes: 61df71ee992d ("kvm: move "select IRQ_BYPASS_MANAGER" to common code")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20250315024623.2363994-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pull more io_uring updates from Jens Axboe:
"Set of fixes/updates for io_uring that should go into this release.
The ublk bits could've gone via either tree - usually I put them in
block, but they got a bit mixed this series with the zero-copy
supported that ended up dipping into both trees.
This contains:
- Fix for sendmsg zc, include in pinned pages accounting like we do
for the other zc types
- Series for ublk fixing request aborting, doing various little
cleanups, fixing some zc issues, and adding queue_rqs support
- Another ublk series doing some code cleanups
- Series cleaning up the io_uring send path, mostly in preparation
for registered buffers
- Series doing little MSG_RING cleanups
- Fix for the newly added zc rx, fixing len being 0 for the last
invocation of the callback
- Add vectored registered buffer support for ublk. With that, then
ublk also supports this feature in the kernel revision where it
could generically introduced for rw/net
- A bunch of selftest additions for ublk. This is the majority of the
diffstat
- Silence a KCSAN data race warning for io-wq
- Various little cleanups and fixes"
* tag 'io_uring-6.15-20250403' of git://git.kernel.dk/linux: (44 commits)
io_uring: always do atomic put from iowq
selftests: ublk: enable zero copy for stripe target
io_uring: support vectored kernel fixed buffer
block: add for_each_mp_bvec()
io_uring: add validate_fixed_range() for validate fixed buffer
selftests: ublk: kublk: fix an error log line
selftests: ublk: kublk: use ioctl-encoded opcodes
io_uring/zcrx: return early from io_zcrx_recv_skb if readlen is 0
io_uring/net: avoid import_ubuf for regvec send
io_uring/rsrc: check size when importing reg buffer
io_uring: cleanup {g,s]etsockopt sqe reading
io_uring: hide caches sqes from drivers
io_uring: make zcrx depend on CONFIG_IO_URING
io_uring: add req flag invariant build assertion
Documentation: ublk: remove dead footnote
selftests: ublk: specify io_cmd_buf pointer type
ublk: specify io_cmd_buf pointer type
io_uring: don't pass ctx to tw add remote helper
io_uring/msg: initialise msg request opcode
io_uring/msg: rename io_double_lock_ctx()
...
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Callers of inetdev_init can come from several places with inconsistent
expectation about netdev instance lock. Grab instance lock during
REGISTER (plus UP). Also solve the inconsistency with UNREGISTER
where it was locked only during move netns path.
WARNING: CPU: 10 PID: 1479 at ./include/net/netdev_lock.h:54
__netdev_update_features+0x65f/0xca0
__warn+0x81/0x180
__netdev_update_features+0x65f/0xca0
report_bug+0x156/0x180
handle_bug+0x4f/0x90
exc_invalid_op+0x13/0x60
asm_exc_invalid_op+0x16/0x20
__netdev_update_features+0x65f/0xca0
netif_disable_lro+0x30/0x1d0
inetdev_init+0x12f/0x1f0
inetdev_event+0x48b/0x870
notifier_call_chain+0x38/0xf0
register_netdevice+0x741/0x8b0
register_netdev+0x1f/0x40
mlx5e_probe+0x4e3/0x8e0 [mlx5_core]
auxiliary_bus_probe+0x3f/0x90
really_probe+0xc3/0x3a0
__driver_probe_device+0x80/0x150
driver_probe_device+0x1f/0x90
__device_attach_driver+0x7d/0x100
bus_for_each_drv+0x80/0xd0
__device_attach+0xb4/0x1c0
bus_probe_device+0x91/0xa0
device_add+0x657/0x870
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reported-by: Cosmin Ratiu <cratiu@nvidia.com>
Fixes: ad7c7b2172c3 ("net: hold netdev instance lock during sysfs operations")
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250401163452.622454-3-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"We see a net reduction of the number of lines of code thanks to the
removal of a now unused driver and a testing tool that is not used
anymore. Apart from this, the max31335 driver gets support for a new
part number and pm8xxx gets UEFI support.
Core:
- setdate is removed as it has better replacements
- skip alarms with a second resolution when we know the RTC doesn't
support those.
Subsystem:
- remove unnecessary private struct members
- use devm_pm_set_wake_irq were relevant
Drivers:
- ds1307: stop disabling alarms on probe for DS1337, DS1339, DS1341
and DS3231
- max31335: add max31331 support
- pcf50633 is removed as support for the related SoC has been removed
- pcf85063: properly handle POR failures"
* tag 'rtc-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
rtc: remove 'setdate' test program
selftest: rtc: skip some tests if the alarm only supports minutes
rtc: mt6397: drop unused defines
rtc: pcf85063: replace dev_err+return with return dev_err_probe
rtc: pcf85063: do a SW reset if POR failed
rtc: max31335: Add driver support for max31331
dt-bindings: rtc: max31335: Add max31331 support
rtc: cros-ec: Avoid a couple of -Wflex-array-member-not-at-end warnings
dt-bindings: rtc: pcf2127: Reference spi-peripheral-props.yaml
rtc: rzn1: implement one-second accuracy for alarms
rtc: pcf50633: Remove
rtc: pm8xxx: implement qcom,no-alarm flag for non-HLOS owned alarm
rtc: pm8xxx: mitigate flash wear
rtc: pm8xxx: add support for uefi offset
dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flag
rtc: rv3032: drop WADA
rtc: rv3032: fix EERD location
rtc: pm8xxx: switch to devm_device_init_wakeup
rtc: pm8xxx: fix possible race condition
rtc: mpfs: switch to devm_device_init_wakeup
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more non-MM updates from Andrew Morton:
"One bugfix and a couple of small late-arriving updates"
* tag 'mm-nonmm-stable-2025-04-02-22-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
lib: scatterlist: fix sg_split_phys to preserve original scatterlist offsets
lib/sort.c: add _nonatomic() variants with cond_resched()
mailmap: add an entry for Nicolas Schier
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton:
- The series "mm: fixes for fallouts from mem_init() cleanup" from Mike
Rapoport fixes a couple of issues with the just-merged "arch, mm:
reduce code duplication in mem_init()" series
- The series "MAINTAINERS: add my isub-entries to MM part." from Mike
Rapoport does some maintenance on MAINTAINERS
- The series "remove tlb_remove_page_ptdesc()" from Qi Zheng does some
cleanup work to the page mapping code
- The series "mseal system mappings" from Jeff Xu permits sealing of
"system mappings", such as vdso, vvar, vvar_vclock, vectors (arm
compat-mode), sigpage (arm compat-mode)
- Plus the usual shower of singleton patches
* tag 'mm-stable-2025-04-02-22-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (31 commits)
mseal sysmap: add arch-support txt
mseal sysmap: enable s390
selftest: test system mappings are sealed
mseal sysmap: update mseal.rst
mseal sysmap: uprobe mapping
mseal sysmap: enable arm64
mseal sysmap: enable x86-64
mseal sysmap: generic vdso vvar mapping
selftests: x86: test_mremap_vdso: skip if vdso is msealed
mseal sysmap: kernel config and header change
mm: pgtable: remove tlb_remove_page_ptdesc()
x86: pgtable: convert to use tlb_remove_ptdesc()
riscv: pgtable: unconditionally use tlb_remove_ptdesc()
mm: pgtable: convert some architectures to use tlb_remove_ptdesc()
mm: pgtable: change pt parameter of tlb_remove_ptdesc() to struct ptdesc*
mm: pgtable: make generic tlb_remove_table() use struct ptdesc
microblaze/mm: put mm_cmdline_setup() in .init.text section
mm/memory_hotplug: fix call folio_test_large with tail page in do_migrate_range
MAINTAINERS: mm: add entry for secretmem
MAINTAINERS: mm: add entry for numa memblocks and numa emulation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM hotfixes from Andrew Morton:
"Five hotfixes. Three are cc:stable and the remainder address post-6.14
issues or aren't considered necessary for -stable kernels.
All patches are for MM"
* tag 'mm-hotfixes-stable-2025-04-02-21-57' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: zswap: fix crypto_free_acomp() deadlock in zswap_cpu_comp_dead()
mm/hugetlb: move hugetlb_sysctl_init() to the __init section
mm: page_isolation: avoid calling folio_hstate() without hugetlb_lock
mm/hugetlb_vmemmap: fix memory loads ordering
mm/userfaultfd: fix release hang over concurrent GUP
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull Compute Express Link (CXL) updates from Dave Jiang:
- Add support for Global Persistent Flush (GPF)
- Cleanup of DPA partition metadata handling:
- Remove the CXL_DECODER_MIXED enum that's not needed anymore
- Introduce helpers to access resource and perf meta data
- Introduce 'struct cxl_dpa_partition' and 'struct cxl_range_info'
- Make cxl_dpa_alloc() DPA partition number agnostic
- Remove cxl_decoder_mode
- Cleanup partition size and perf helpers
- Remove unused CXL partition values
- Add logging support for CXL CPER endpoint and port protocol errors:
- Prefix protocol error struct and function names with cxl_
- Move protocol error definitions and structures to a common location
- Remove drivers/firmware/efi/cper_cxl.h to include/linux/cper.h
- Add support in GHES to process CXL CPER protocol errors
- Process CXL CPER protocol errors
- Add trace logging for CXL PCIe port RAS errors
- Remove redundant gp_port init
- Add validation of cxl device serial number
- CXL ABI documentation updates/fixups
- A series that uses guard() to clean up open coded mutex lockings and
remove gotos for error handling.
- Some followup patches to support dirty shutdown accounting:
- Add helper to retrieve DVSEC offset for dirty shutdown registers
- Rename cxl_get_dirty_shutdown() to cxl_arm_dirty_shutdown()
- Add support for dirty shutdown count via sysfs
- cxl_test support for dirty shutdown
- A series to support CXL mailbox Features commands.
Mostly in preparation for CXL EDAC code to utilize the Features
commands. It's also in preparation for CXL fwctl support to utilize
the CXL Features. The commands include "Get Supported Features", "Get
Feature", and "Set Feature".
- A series to support extended linear cache support described by the
ACPI HMAT table.
The addition helps enumerate the cache and also provides additional
RAS reporting support for configuration with extended linear cache.
(and related fixes for the series).
- An update to cxl_test to support a 3-way capable CFMWS
- A documentation fix to remove unused "mixed mode"
* tag 'cxl-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (39 commits)
cxl/region: Fix the first aliased address miscalculation
cxl/region: Quiet some dev_warn()s in extended linear cache setup
cxl/Documentation: Remove 'mixed' from sysfs mode doc
cxl: Fix warning from emitting resource_size_t as long long int on 32bit systems
cxl/test: Define a CFMWS capable of a 3 way HB interleave
cxl/mem: Do not return error if CONFIG_CXL_MCE unset
tools/testing/cxl: Set Shutdown State support
cxl/pmem: Export dirty shutdown count via sysfs
cxl/pmem: Rename cxl_dirty_shutdown_state()
cxl/pci: Introduce cxl_gpf_get_dvsec()
cxl/pci: Support Global Persistent Flush (GPF)
cxl: Document missing sysfs files
cxl: Plug typos in ABI doc
cxl/pmem: debug invalid serial number data
cxl/cdat: Remove redundant gp_port initialization
cxl/memdev: Remove unused partition values
cxl/region: Drop goto pattern of construct_region()
cxl/region: Drop goto pattern in cxl_dax_region_alloc()
cxl/core: Use guard() to drop goto pattern of cxl_dpa_alloc()
cxl/core: Use guard() to drop the goto pattern of cxl_dpa_free()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver updates for
6.15-rc1. Included in here are:
- Thunderbolt driver and core api updates for new hardware and
features
- usb-storage const array cleanups
- typec driver updates
- dwc3 driver updates
- xhci driver updates and bugfixes
- small USB documentation updates
- usb cdns3 driver updates
- usb gadget driver updates
- other small driver updates and fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (92 commits)
thunderbolt: Do not add non-active NVM if NVM upgrade is disabled for retimer
thunderbolt: Scan retimers after device router has been enumerated
usb: host: cdns3: forward lost power information to xhci
usb: host: xhci-plat: allow upper layers to signal power loss
usb: xhci: change xhci_resume() parameters to explicit the desired info
usb: cdns3-ti: run HW init at resume() if HW was reset
usb: cdns3-ti: move reg writes to separate function
usb: cdns3: call cdns_power_is_lost() only once in cdns_resume()
usb: cdns3: rename hibernated argument of role->resume() to lost_power
usb: xhci: tegra: rename `runtime` boolean to `is_auto_runtime`
usb: host: xhci-plat: mvebu: use ->quirks instead of ->init_quirk() func
usb: dwc3: Don't use %pK through printk
usb: core: Don't use %pK through printk
usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev()
dt-bindings: usb: qcom,dwc3: Synchronize minItems for interrupts and -names
usb: common: usb-conn-gpio: switch psy_cfg from of_node to fwnode
usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running
usb: xhci: Don't change the status of stalled TDs on failed Stop EP
xhci: Avoid queuing redundant Stop Endpoint command for stalled endpoint
xhci: Handle spurious events on Etron host isoc enpoints
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big set of serial and tty driver updates for 6.15-rc1.
Include in here are the following:
- more great tty layer cleanups from Jiri. Someday this will be done,
but that's not going to be any year soon...
- kdb debug driver reverts to fix a reported issue
- lots of .dts binding updates for different devices with serial
devices
- lots of tiny updates and tweaks and a few bugfixes for different
serial drivers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (79 commits)
tty: serial: fsl_lpuart: Fix unused variable 'sport' build warning
serial: stm32: do not deassert RS485 RTS GPIO prematurely
serial: 8250: add driver for NI UARTs
dt-bindings: serial: snps-dw-apb-uart: document RZ/N1 binding without DMA
serial: icom: fix code format problems
serial: sh-sci: Save and restore more registers
tty: serial: pl011: remove incorrect of_match_ptr annotation
dt-bindings: serial: snps-dw-apb-uart: Add support for rk3562
tty: serial: lpuart: only disable CTS instead of overwriting the whole UARTMODIR register
tty: caif: removed unused function debugfs_tx()
serial: 8250_dma: terminate correct DMA in tx_dma_flush()
tty: serial: fsl_lpuart: rename register variables more specifically
tty: serial: fsl_lpuart: use port struct directly to simply code
tty: serial: fsl_lpuart: Use u32 and u8 for register variables
tty: serial: fsl_lpuart: disable transmitter before changing RS485 related registers
tty: serial: 8250: Add Brainboxes XC devices
dt-bindings: serial: fsl-lpuart: support i.MX94
tty: serial: 8250: Add some more device IDs
dt-bindings: serial: samsung: add exynos7870-uart compatible
serial: 8250_dw: Comment possible corner cases in serial_out() implementation
...
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Pull NFS client updates from Trond Myklebust:
"Bugfixes:
- Three fixes for looping in the NFSv4 state manager delegation code
- Fix for the NFSv4 state XDR code (Neil Brown)
- Fix a leaked reference in nfs_lock_and_join_requests()
- Fix a use-after-free in the delegation return code
Features:
- Implement the NFSv4.2 copy offload OFFLOAD_STATUS operation to
allow monitoring of an in-progress copy
- Add a mount option to force NFSv3/NFSv4 to use READDIRPLUS in a
getdents() call
- SUNRPC now allows some basic management of an existing RPC client's
connections using sysfs
- Improvements to the automated teardown of a NFS client when the
container it was initiated from gets killed
- Improvements to prevent tasks from getting stuck in a killable wait
state after calling exit_signals()"
* tag 'nfs-for-6.15-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (29 commits)
nfs: Add missing release on error in nfs_lock_and_join_requests()
NFSv4: Check for delegation validity in nfs_start_delegation_return_locked()
NFS: Don't allow waiting for exiting tasks
SUNRPC: Don't allow waiting for exiting tasks
NFSv4: Treat ENETUNREACH errors as fatal for state recovery
NFSv4: clp->cl_cons_state < 0 signifies an invalid nfs_client
NFSv4: Further cleanups to shutdown loops
NFS: Shut down the nfs_client only after all the superblocks
SUNRPC: rpc_clnt_set_transport() must not change the autobind setting
SUNRPC: rpcbind should never reset the port to the value '0'
pNFS/flexfiles: Report ENETDOWN as a connection error
pNFS/flexfiles: Treat ENETUNREACH errors as fatal in containers
NFS: Treat ENETUNREACH errors as fatal in containers
NFS: Add a mount option to make ENETUNREACH errors fatal
sunrpc: Add a sysfs file for one-step xprt deletion
sunrpc: Add a sysfs file for adding a new xprt
sunrpc: Add a sysfs files for rpc_clnt information
sunrpc: Add a sysfs attr for xprtsec
NFS: Add implid to sysfs
NFS: Extend rdirplus mount option with "force|none"
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Add a new maintainer for configfs
- Fix exportfs module description
- Place flexible array memeber at the end of an internal struct in the
mount code
- Add new maintainer for netfslib as Jeff Layton is stepping down as
current co-maintainer
- Fix error handling in cachefiles_get_directory()
- Cleanup do_notify_pidfd()
- Fix syscall number definitions in pidfd selftests
- Fix racy usage of fs_struct->in exec during multi-threaded exec
- Ensure correct exit code is reported when pidfs_exit() is called from
release_task() for a delayed thread-group leader exit
- Fix conflicting iomap flag definitions
* tag 'vfs-6.15-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
iomap: Fix conflicting values of iomap flags
fs: namespace: Avoid -Wflex-array-member-not-at-end warning
MAINTAINERS: configfs: add Andreas Hindborg as maintainer
exportfs: add module description
exit: fix the usage of delay_group_leader->exit_code in do_notify_parent() and pidfs_exit()
netfs: add Paulo as maintainer and remove myself as Reviewer
cachefiles: Fix oops in vfs_mkdir from cachefiles_get_directory
exec: fix the racy usage of fs_struct->in_exec
selftests/pidfd: fixes syscall number defines
pidfs: cleanup the usage of do_notify_pidfd()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
"These are objtool fixes and updates by Josh Poimboeuf, centered around
the fallout from the new CONFIG_OBJTOOL_WERROR=y feature, which,
despite its default-off nature, increased the profile/impact of
objtool warnings:
- Improve error handling and the presentation of warnings/errors
- Revert the new summary warning line that some test-bot tools
interpreted as new regressions
- Fix a number of objtool warnings in various drivers, core kernel
code and architecture code. About half of them are potential
problems related to out-of-bounds accesses or potential undefined
behavior, the other half are additional objtool annotations
- Update objtool to latest (known) compiler quirks and objtool bugs
triggered by compiler code generation
- Misc fixes"
* tag 'objtool-urgent-2025-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
objtool/loongarch: Add unwind hints in prepare_frametrace()
rcu-tasks: Always inline rcu_irq_work_resched()
context_tracking: Always inline ct_{nmi,irq}_{enter,exit}()
sched/smt: Always inline sched_smt_active()
objtool: Fix verbose disassembly if CROSS_COMPILE isn't set
objtool: Change "warning:" to "error: " for fatal errors
objtool: Always fail on fatal errors
Revert "objtool: Increase per-function WARN_FUNC() rate limit"
objtool: Append "()" to function name in "unexpected end of section" warning
objtool: Ignore end-of-section jumps for KCOV/GCOV
objtool: Silence more KCOV warnings, part 2
objtool, drm/vmwgfx: Don't ignore vmw_send_msg() for ORC
objtool: Fix STACK_FRAME_NON_STANDARD for cold subfunctions
objtool: Fix segfault in ignore_unreachable_insn()
objtool: Fix NULL printf() '%s' argument in builtin-check.c:save_argv()
objtool, lkdtm: Obfuscate the do_nothing() pointer
objtool, regulator: rk808: Remove potential undefined behavior in rk806_set_mode_dcdc()
objtool, ASoC: codecs: wcd934x: Remove potential undefined behavior in wcd934x_slim_irq_handler()
objtool, Input: cyapa - Remove undefined behavior in cyapa_update_fw_store()
objtool, panic: Disable SMAP in __stack_chk_fail()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull more printk updates from Petr Mladek:
- Silence warnings about candidates for ‘gnu_print’ format attribute
* tag 'printk-for-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
vsnprintf: Silence false positive GCC warning for va_format()
vsnprintf: Drop unused const char fmt * in va_format()
vsnprintf: Mark binary printing functions with __printf() attribute
tracing: Mark binary printing functions with __printf() attribute
seq_file: Mark binary printing functions with __printf() attribute
seq_buf: Mark binary printing functions with __printf() attribute
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git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
Pull kgdb updates from Daniel Thompson:
"Two cleanups this cycle. The larger of which is the removal of a
private allocator within kdb and replacing it with regular memory
allocation. The other adopts the simplified version of strscpy() in a
couple of places in kdb"
* tag 'kgdb-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kdb: Remove optional size arguments from strscpy() calls
kdb: remove usage of static environment buffer
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Add helper of for_each_mp_bvec() for io_uring to import fixed kernel
buffer.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250325135155.935398-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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There is a possible race between removing a cgroup diectory that is
a partition root and the creation of a new partition. The partition
to be removed can be dying but still online, it doesn't not currently
participate in checking for exclusive CPUs conflict, but the exclusive
CPUs are still there in subpartitions_cpus and isolated_cpus. These
two cpumasks are global states that affect the operation of cpuset
partitions. The exclusive CPUs in dying cpusets will only be removed
when cpuset_css_offline() function is called after an RCU delay.
As a result, it is possible that a new partition can be created with
exclusive CPUs that overlap with those of a dying one. When that dying
partition is finally offlined, it removes those overlapping exclusive
CPUs from subpartitions_cpus and maybe isolated_cpus resulting in an
incorrect CPU configuration.
This bug was found when a warning was triggered in
remote_partition_disable() during testing because the subpartitions_cpus
mask was empty.
One possible way to fix this is to iterate the dying cpusets as well and
avoid using the exclusive CPUs in those dying cpusets. However, this
can still cause random partition creation failures or other anomalies
due to racing. A better way to fix this race is to reset the partition
state at the moment when a cpuset is being killed.
Introduce a new css_killed() CSS function pointer and call it, if
defined, before setting CSS_DYING flag in kill_css(). Also update the
css_is_dying() helper to use the CSS_DYING flag introduced by commit
33c35aa48178 ("cgroup: Prevent kill_css() from being called more than
once") for proper synchronization.
Add a new cpuset_css_killed() function to reset the partition state of
a valid partition root if it is being killed.
Fixes: ee8dde0cd2ce ("cpuset: Add new v2 cpuset.sched.partition flag")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Pull VFIO updates from Alex Williamson:
- Relax IGD support code to match display class device rather than
specifically requiring a VGA device (Tomita Moeko)
- Accelerate DMA mapping of device MMIO by iterating at PMD and PUD
levels to take advantage of huge pfnmap support added in v6.12
(Alex Williamson)
- Extend virtio vfio-pci variant driver to include migration support
for block devices where enabled by the PF (Yishai Hadas)
- Virtualize INTx PIN register for devices where the platform does not
route legacy PCI interrupts for the device and the interrupt is
reported as IRQ_NOTCONNECTED (Alex Williamson)
* tag 'vfio-v6.15-rc1' of https://github.com/awilliam/linux-vfio:
vfio/pci: Handle INTx IRQ_NOTCONNECTED
vfio/virtio: Enable support for virtio-block live migration
vfio/type1: Use mapping page mask for pfnmaps
mm: Provide address mask in struct follow_pfnmap_args
vfio/type1: Use consistent types for page counts
vfio/type1: Use vfio_batch for vaddr_get_pfns()
vfio/type1: Convert all vaddr_get_pfns() callers to use vfio_batch
vfio/type1: Catch zero from pin_user_pages_remote()
vfio/pci: match IGD devices in display controller class
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git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"Two significant new items:
- Allow reporting IOMMU HW events to userspace when the events are
clearly linked to a device.
This is linked to the VIOMMU object and is intended to be used by a
VMM to forward HW events to the virtual machine as part of
emulating a vIOMMU. ARM SMMUv3 is the first driver to use this
mechanism. Like the existing fault events the data is delivered
through a simple FD returning event records on read().
- PASID support in VFIO.
The "Process Address Space ID" is a PCI feature that allows the
device to tag all PCI DMA operations with an ID. The IOMMU will
then use the ID to select a unique translation for those DMAs. This
is part of Intel's vIOMMU support as VT-D HW requires the
hypervisor to manage each PASID entry.
The support is generic so any VFIO user could attach any
translation to a PASID, and the support should work on ARM SMMUv3
as well. AMD requires additional driver work.
Some minor updates, along with fixes:
- Prevent using nested parents with fault's, no driver support today
- Put a single "cookie_type" value in the iommu_domain to indicate
what owns the various opaque owner fields"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (49 commits)
iommufd: Test attach before detaching pasid
iommufd: Fix iommu_vevent_header tables markup
iommu: Convert unreachable() to BUG()
iommufd: Balance veventq->num_events inc/dec
iommufd: Initialize the flags of vevent in iommufd_viommu_report_event()
iommufd/selftest: Add coverage for reporting max_pasid_log2 via IOMMU_HW_INFO
iommufd: Extend IOMMU_GET_HW_INFO to report PASID capability
vfio: VFIO_DEVICE_[AT|DE]TACH_IOMMUFD_PT support pasid
vfio-iommufd: Support pasid [at|de]tach for physical VFIO devices
ida: Add ida_find_first_range()
iommufd/selftest: Add coverage for iommufd pasid attach/detach
iommufd/selftest: Add test ops to test pasid attach/detach
iommufd/selftest: Add a helper to get test device
iommufd/selftest: Add set_dev_pasid in mock iommu
iommufd: Allow allocating PASID-compatible domain
iommu/vt-d: Add IOMMU_HWPT_ALLOC_PASID support
iommufd: Enforce PASID-compatible domain for RID
iommufd: Support pasid attach/replace
iommufd: Enforce PASID-compatible domain in PASID path
iommufd/device: Add pasid_attach array to track per-PASID attach
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more thermal control updates from Rafael Wysocki:
"These are mostly assorted updates of thermal drivers used on ARM
platforms:
- Use dev_err_probe() helpers to simplify the init code in the Qoriq
thermal driver (Frank Li)
- Power down the Qoriq's TMU at suspend time (Alice Guo)
- Add ipq5332, ipq5424 compatible to the QCom's tsens thermal driver
and TSENS enable / calibration support for V2 (Praveenkumar I)
- Add missing rk3328 mapping entry (Trevor Woerner)
- Remove duplicate struct declaration from the thermal core header
file (Xueqin Luo)
- Disable the monitoring mode during suspend in the LVTS Mediatek
driver to prevent temperature acquisition glitches (Nícolas F. R.
A. Prado)
- Disable Stage 3 thermal threshold in the LVTS Mediatek driver
because it disables the suspend ability and does not have an
interrupt handler (Nícolas F. R. A. Prado)
- Fix low temperature offset interrupt in the LVTS Mediatek driver to
prevent multiple interrupts from triggering when the system is at
its normal functionning temperature (Nícolas F. R. A. Prado)
- Enable interrupts in the LVTS Mediatek driver only on sensors that
are in use (Nícolas F. R. A. Prado)
- Add the BCM74110 compatible DT binding and the corresponding code
to support a chip based on a different process node than previous
chips (Florian Fainelli)
- Correct indentation and style in DTS example (Krzysztof Kozlowski)
- Unify hexadecimal annotatation in the rcar_gen3 driver (Niklas
Söderlund)
- Factor out the code logic to read fuses on Gen3 and Gen4 in the
rcar_gen3 thermal driver (Niklas Söderlund)
- Drop unused driver data from the QCom's spmi temperature alarm
driver (Johan Hovold)"
* tag 'thermal-6.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/drivers/qcom-spmi-temp-alarm: Drop unused driver data
thermal: rcar_gen3: Reuse logic to read fuses on Gen3 and Gen4
thermal: rcar_gen3: Use lowercase hex constants
dt-bindings: thermal: Correct indentation and style in DTS example
thermal/drivers/brcmstb_thermal: Add support for BCM74110
dt-bindings: thermal: Update for BCM74110
thermal/drivers/mediatek/lvts: Only update IRQ enable for valid sensors
thermal/drivers/mediatek/lvts: Start sensor interrupts disabled
thermal/drivers/mediatek/lvts: Disable low offset IRQ for minimum threshold
thermal/drivers/mediatek/lvts: Disable Stage 3 thermal threshold
thermal/drivers/mediatek/lvts: Disable monitor mode during suspend
thermal: core: Remove duplicate struct declaration
thermal/drivers/rockchip: Add missing rk3328 mapping entry
thermal/drivers/tsens: Add TSENS enable and calibration support for V2
dt-bindings: thermal: tsens: Add ipq5332, ipq5424 compatible
thermal/drivers/qoriq: Power down TMU on system suspend
thermal/drivers/qoriq: Use dev_err_probe() simplify the code
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni:
"The silvaco driver gets support for the integration of the IP in the
Nuvoton npcm845 SoC. There is also a fix for a possible NULL pointer
dereference that can happen with early IBIs. Summary:
Core:
- Fix a possible NULL pointer dereference due to IBI coming when the
target driver is not yet probed.
Drivers:
- mipi-i3c-hci: Use I2C DMA-safe api
- svc: add Nuvoton npcm845 support"
* tag 'i3c/for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: Add NULL pointer check in i3c_master_queue_ibi()
i3c: master: Drop duplicate check before calling OF APIs
i3c: master: svc: Fix implicit fallthrough in svc_i3c_master_ibi_work()
i3c: master: svc: Fix missing STOP for master request
i3c: master: svc: Use readsb helper for reading MDB
i3c: master: svc: Fix missing the IBI rules
i3c: master: svc: Fix i3c_master_get_free_addr return check
i3c: master: svc: Fix npcm845 DAA process corruption
i3c: master: svc: Fix npcm845 invalid slvstart event
i3c: master: svc: Fix npcm845 FIFO empty issue
i3c: master: svc: Add support for Nuvoton npcm845 i3c
dt-bindings: i3c: silvaco: Add npcm845 compatible string
dt-bindings: i3c: dw: Add power-domains
i3c: master: svc: Flush FIFO before sending Dynamic Address Assignment(DAA)
i3c: mipi-i3c-hci: Use I2C DMA-safe api
i3c: Remove the const qualifier from i2c_msg pointer in i2c_xfers API
MAINTAINERS: Add Frank Li to Silvaco I3C
MAINTAINERS: Remove Conor Culhane from Silvaco I3C
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bcachefs calls sort() during recovery to sort all keys it found in the
journal, and this may be very large - gigabytes on large machines.
This has been causing "task blocked" warnings, so needs a
cond_resched().
[kent.overstreet@linux.dev: fix kerneldoc]
Link: https://lkml.kernel.org/r/cgsr5a447pxqomc4gvznsp5yroqmif4omd7o5lsr2swifjhoic@yzjjrx2bvrq7
Link: https://lkml.kernel.org/r/20250326152606.2594920-1-kent.overstreet@linux.dev
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Kuan-Wei Chiu <visitorckw@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "mseal system mappings", v9.
As discussed during mseal() upstream process [1], mseal() protects the
VMAs of a given virtual memory range against modifications, such as the
read/write (RW) and no-execute (NX) bits. For complete descriptions of
memory sealing, please see mseal.rst [2].
The mseal() is useful to mitigate memory corruption issues where a
corrupted pointer is passed to a memory management system. For example,
such an attacker primitive can break control-flow integrity guarantees
since read-only memory that is supposed to be trusted can become writable
or .text pages can get remapped.
The system mappings are readonly only, memory sealing can protect them
from ever changing to writable or unmmap/remapped as different attributes.
System mappings such as vdso, vvar, vvar_vclock, vectors (arm
compat-mode), sigpage (arm compat-mode), are created by the kernel during
program initialization, and could be sealed after creation.
Unlike the aforementioned mappings, the uprobe mapping is not established
during program startup. However, its lifetime is the same as the
process's lifetime [3]. It could be sealed from creation.
The vsyscall on x86-64 uses a special address (0xffffffffff600000), which
is outside the mm managed range. This means mprotect, munmap, and mremap
won't work on the vsyscall. Since sealing doesn't enhance the vsyscall's
security, it is skipped in this patch. If we ever seal the vsyscall, it
is probably only for decorative purpose, i.e. showing the 'sl' flag in
the /proc/pid/smaps. For this patch, it is ignored.
It is important to note that the CHECKPOINT_RESTORE feature (CRIU) may
alter the system mappings during restore operations. UML(User Mode Linux)
and gVisor, rr are also known to change the vdso/vvar mappings.
Consequently, this feature cannot be universally enabled across all
systems. As such, CONFIG_MSEAL_SYSTEM_MAPPINGS is disabled by default.
To support mseal of system mappings, architectures must define
CONFIG_ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS and update their special
mappings calls to pass mseal flag. Additionally, architectures must
confirm they do not unmap/remap system mappings during the process
lifetime. The existence of this flag for an architecture implies that it
does not require the remapping of thest system mappings during process
lifetime, so sealing these mappings is safe from a kernel perspective.
This version covers x86-64 and arm64 archiecture as minimum viable feature.
While no specific CPU hardware features are required for enable this
feature on an archiecture, memory sealing requires a 64-bit kernel. Other
architectures can choose whether or not to adopt this feature. Currently,
I'm not aware of any instances in the kernel code that actively
munmap/mremap a system mapping without a request from userspace. The PPC
does call munmap when _install_special_mapping fails for vdso; however,
it's uncertain if this will ever fail for PPC - this needs to be
investigated by PPC in the future [4]. The UML kernel can add this
support when KUnit tests require it [5].
In this version, we've improved the handling of system mapping sealing
from previous versions, instead of modifying the _install_special_mapping
function itself, which would affect all architectures, we now call
_install_special_mapping with a sealing flag only within the specific
architecture that requires it. This targeted approach offers two key
advantages: 1) It limits the code change's impact to the necessary
architectures, and 2) It aligns with the software architecture by keeping
the core memory management within the mm layer, while delegating the
decision of sealing system mappings to the individual architecture, which
is particularly relevant since 32-bit architectures never require sealing.
Prior to this patch series, we explored sealing special mappings from
userspace using glibc's dynamic linker. This approach revealed several
issues:
- The PT_LOAD header may report an incorrect length for vdso, (smaller
than its actual size). The dynamic linker, which relies on PT_LOAD
information to determine mapping size, would then split and partially
seal the vdso mapping. Since each architecture has its own vdso/vvar
code, fixing this in the kernel would require going through each
archiecture. Our initial goal was to enable sealing readonly mappings,
e.g. .text, across all architectures, sealing vdso from kernel since
creation appears to be simpler than sealing vdso at glibc.
- The [vvar] mapping header only contains address information, not
length information. Similar issues might exist for other special
mappings.
- Mappings like uprobe are not covered by the dynamic linker, and there
is no effective solution for them.
This feature's security enhancements will benefit ChromeOS, Android, and
other high security systems.
Testing:
This feature was tested on ChromeOS and Android for both x86-64 and ARM64.
- Enable sealing and verify vdso/vvar, sigpage, vector are sealed properly,
i.e. "sl" shown in the smaps for those mappings, and mremap is blocked.
- Passing various automation tests (e.g. pre-checkin) on ChromeOS and
Android to ensure the sealing doesn't affect the functionality of
Chromebook and Android phone.
I also tested the feature on Ubuntu on x86-64:
- With config disabled, vdso/vvar is not sealed,
- with config enabled, vdso/vvar is sealed, and booting up Ubuntu is OK,
normal operations such as browsing the web, open/edit doc are OK.
Link: https://lore.kernel.org/all/20240415163527.626541-1-jeffxu@chromium.org/ [1]
Link: Documentation/userspace-api/mseal.rst [2]
Link: https://lore.kernel.org/all/CABi2SkU9BRUnqf70-nksuMCQ+yyiWjo3fM4XkRkL-NrCZxYAyg@mail.gmail.com/ [3]
Link: https://lore.kernel.org/all/CABi2SkV6JJwJeviDLsq9N4ONvQ=EFANsiWkgiEOjyT9TQSt+HA@mail.gmail.com/ [4]
Link: https://lore.kernel.org/all/202502251035.239B85A93@keescook/ [5]
This patch (of 7):
Provide infrastructure to mseal system mappings. Establish two kernel
configs (CONFIG_MSEAL_SYSTEM_MAPPINGS,
ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS) and VM_SEALED_SYSMAP macro for future
patches.
Link: https://lkml.kernel.org/r/20250305021711.3867874-1-jeffxu@google.com
Link: https://lkml.kernel.org/r/20250305021711.3867874-2-jeffxu@google.com
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Anna-Maria Behnsen <anna-maria@linutronix.de>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Benjamin Berg <benjamin@sipsolutions.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Elliot Hughes <enh@google.com>
Cc: Florian Faineli <f.fainelli@gmail.com>
Cc: Greg Ungerer <gerg@kernel.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jason A. Donenfeld <jason@zx2c4.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Linus Waleij <linus.walleij@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcow (Oracle) <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Mike Rapoport <mike.rapoport@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Röttger <sroettger@google.com>
Cc: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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