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2025-06-19selftests/landlock: Add test to check rule tied to covered mount pointMickaël Salaün
This test checks that a rule on a directory used as a mount point does not grant access to the mount covering it. It is a generalization of the bind mount case in layout3_fs.hostfs.release_inodes [1] that tests hidden mount points. Cc: Günther Noack <gnoack@google.com> Cc: Song Liu <song@kernel.org> Cc: Tingmao Wang <m@maowtm.org> Link: https://lore.kernel.org/r/20250606.zo5aekae6Da6@digikod.net [1] Link: https://lore.kernel.org/r/20250606110811.211297-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19selftests/landlock: Fix build of audit_testSong Liu
We are hitting build error on CentOS 9: audit_test.c:232:40: error: ‘O_CLOEXEC’ undeclared (...) Fix this by including fcntl.h. Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20250605214416.1885878-1-song@kernel.org Fixes: 6b4566400a29 ("selftests/landlock: Add PID tests for audit records") Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19selftests/landlock: Fix readlink checkMickaël Salaün
The audit_init_filter_exe() helper incorrectly checks the readlink(2) error because an unsigned integer is used to store the result. Use a signed integer for this check. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/aDbFwyZ_fM-IO7sC@stanley.mountain Fixes: 6a500b22971c ("selftests/landlock: Add tests for audit flags and domain IDs") Reviewed-by: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250528144426.1709063-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19KVM: arm64: selftests: Close the GIC FD in arch_timer_edge_casesZenghui Yu
Close the GIC FD to free the reference it holds to the VM so that we can correctly clean up the VM. This also gets rid of the "KVM: debugfs: duplicate directory 395722-4" warning when running arch_timer_edge_cases. Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Reviewed-by: Miguel Luis <miguel.luis@oracle.com> Reviewed-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250608095402.1131-1-yuzenghui@huawei.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-06-18bpf: Adjust free target to avoid global starvation of LRU mapWillem de Bruijn
BPF_MAP_TYPE_LRU_HASH can recycle most recent elements well before the map is full, due to percpu reservations and force shrink before neighbor stealing. Once a CPU is unable to borrow from the global map, it will once steal one elem from a neighbor and after that each time flush this one element to the global list and immediately recycle it. Batch value LOCAL_FREE_TARGET (128) will exhaust a 10K element map with 79 CPUs. CPU 79 will observe this behavior even while its neighbors hold 78 * 127 + 1 * 15 == 9921 free elements (99%). CPUs need not be active concurrently. The issue can appear with affinity migration, e.g., irqbalance. Each CPU can reserve and then hold onto its 128 elements indefinitely. Avoid global list exhaustion by limiting aggregate percpu caches to half of map size, by adjusting LOCAL_FREE_TARGET based on cpu count. This change has no effect on sufficiently large tables. Similar to LOCAL_NR_SCANS and lru->nr_scans, introduce a map variable lru->free_target. The extra field fits in a hole in struct bpf_lru. The cacheline is already warm where read in the hot path. The field is only accessed with the lru lock held. Tested-by: Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://lore.kernel.org/r/20250618215803.3587312-1-willemdebruijn.kernel@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-18selftests: net: add test for passive TFO socket NAPI IDDavid Wei
Add a test that checks that the NAPI ID of a passive TFO socket is valid i.e. not zero. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-4-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18selftests: net: add passive TFO test binaryDavid Wei
Add a simple passive TFO server and client test binary. This will be used to test the SO_INCOMING_NAPI_ID of passive TFO accepted sockets. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-3-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18selftests: netdevsim: improve lib.sh include in peer.shDavid Wei
Fix the peer.sh test to run from INSTALL_PATH. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-2-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18selftests/ptrace: Fix spelling mistake "multible" -> "multiple"Ankit Chauhan
Fix the spelling error from "multible" to "multiple". Link: https://lore.kernel.org/r/20250501060329.126117-1-ankitchauhan2065@gmail.com Signed-off-by: Ankit Chauhan <ankitchauhan2065@gmail.com> Reviewed-by: Brigham Campbell <me@brighamcampbell.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-17selftests: ipc: Replace fail print statements with ksft_test_result_failNick Huang
Use the standard kselftest failure report function to ensure consistent test output formatting. This improves readability and integration with automated test frameworks. Link: https://lore.kernel.org/r/20250531070140.24287-1-sef1548@gmail.com Signed-off-by: Nick Huang <sef1548@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-17selftests: Add version file to kselftest installation dirTianyi Cui
As titled, adding version file to kselftest installation dir, so the user of the tarball can know which kernel version the tarball belongs to. Link: https://lore.kernel.org/r/20250610221248.819519-1-1997cui@gmail.com Signed-off-by: Tianyi Cui <1997cui@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-17selftests/cpu-hotplug: fix typo in hotplaggable_offline_cpus function nameJihed Chaibi
Fix spelling error replacing "hotplaggable" by "hotpluggable" Fixed change log: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20250523202239.276760-1-jihed.chaibi.dev@gmail.com Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-17bpf: Mark dentry->d_inode as trusted_or_nullSong Liu
LSM hooks such as security_path_mknod() and security_inode_rename() have access to newly allocated negative dentry, which has NULL d_inode. Therefore, it is necessary to do the NULL pointer check for d_inode. Also add selftests that checks the verifier enforces the NULL pointer check. Signed-off-by: Song Liu <song@kernel.org> Reviewed-by: Matt Bobrowski <mattbobrowski@google.com> Link: https://lore.kernel.org/r/20250613052857.1992233-1-song@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-16Merge tag 'x86_urgent_for_6.16-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Dave Hansen: "This is a pretty scattered set of fixes. The majority of them are further fixups around the recent ITS mitigations. The rest don't really have a coherent story: - Some flavors of Xen PV guests don't support large pages, but the set_memory.c code assumes all CPUs support them. Avoid problems with a quick CPU feature check. - The TDX code has some wrappers to help retry calls to the TDX module. They use function pointers to assembly functions and the compiler usually generates direct CALLs. But some new compilers, plus -Os turned them in to indirect CALLs and the assembly code was not annotated for indirect calls. Force inlining of the helper to fix it up. - Last, a FRED issue showed up when single-stepping. It's fine when using an external debugger, but was getting stuck returning from a SIGTRAP handler otherwise. Clear the FRED 'swevent' bit to ensure that forward progress is made" * tag 'x86_urgent_for_6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "mm/execmem: Unify early execmem_cache behaviour" x86/its: explicitly manage permissions for ITS pages x86/its: move its_pages array to struct mod_arch_specific x86/Kconfig: only enable ROX cache in execmem when STRICT_MODULE_RWX is set x86/mm/pat: don't collapse pages without PSE set x86/virt/tdx: Avoid indirect calls to TDX assembly functions selftests/x86: Add a test to detect infinite SIGTRAP handler loop x86/fred/signal: Prevent immediate repeat of single step trap on return from SIGTRAP handler
2025-06-16selftests/coredump: make sure invalid paths are rejectedChristian Brauner
Link: https://lore.kernel.org/20250612-work-coredump-massage-v1-8-315c0c34ba94@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-14Merge tag 'mm-hotfixes-stable-2025-06-13-21-56' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "9 hotfixes. 3 are cc:stable and the remainder address post-6.15 issues or aren't considered necessary for -stable kernels. Only 4 are for MM" * tag 'mm-hotfixes-stable-2025-06-13-21-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: add mmap_prepare() compatibility layer for nested file systems init: fix build warnings about export.h MAINTAINERS: add Barry as a THP reviewer drivers/rapidio/rio_cm.c: prevent possible heap overwrite mm: close theoretical race where stale TLB entries could linger mm/vma: reset VMA iterator on commit_merge() OOM failure docs: proc: update VmFlags documentation in smaps scatterlist: fix extraneous '@'-sign kernel-doc notation selftests/mm: skip failed memfd setups in gup_longterm
2025-06-13Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "ARM: - Rework of system register accessors for system registers that are directly writen to memory, so that sanitisation of the in-memory value happens at the correct time (after the read, or before the write). For convenience, RMW-style accessors are also provided. - Multiple fixes for the so-called "arch-timer-edge-cases' selftest, which was always broken. x86: - Make KVM_PRE_FAULT_MEMORY stricter for TDX, allowing userspace to pass only the "untouched" addresses and flipping the shared/private bit in the implementation. - Disable SEV-SNP support on initialization failure * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86/mmu: Reject direct bits in gpa passed to KVM_PRE_FAULT_MEMORY KVM: x86/mmu: Embed direct bits into gpa for KVM_PRE_FAULT_MEMORY KVM: SEV: Disable SEV-SNP support on initialization failure KVM: arm64: selftests: Determine effective counter width in arch_timer_edge_cases KVM: arm64: selftests: Fix xVAL init in arch_timer_edge_cases KVM: arm64: selftests: Fix thread migration in arch_timer_edge_cases KVM: arm64: selftests: Fix help text for arch_timer_edge_cases KVM: arm64: Make __vcpu_sys_reg() a pure rvalue operand KVM: arm64: Don't use __vcpu_sys_reg() to get the address of a sysreg KVM: arm64: Add RMW specific sysreg accessor KVM: arm64: Add assignment-specific sysreg accessor
2025-06-13selftests: Add tests for PR_SYS_DISPATCH_INCLUSIVE_ONDmitry Vyukov
Add tests for PR_SYS_DISPATCH_INCLUSIVE_ON correct/incorrect args, and a test that ensures that the specified range is respected by both PR_SYS_DISPATCH_EXCLUSIVE_ON and PR_SYS_DISPATCH_INCLUSIVE_ON. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/8df4b50b176b073550bab5b3f3faff752c5f8e17.1747839857.git.dvyukov@google.com
2025-06-13selftests: Fix errno checking in syscall_user_dispatch testDmitry Vyukov
Successful syscalls don't change errno, so checking errno is wrong to ensure that a syscall has failed. For example for the following sequence: prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0xff, 0); EXPECT_EQ(EINVAL, errno); prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0x0, &sel); EXPECT_EQ(EINVAL, errno); only the first syscall may fail and set errno, but the second may succeed and keep errno intact, and the check will falsely pass. Or if errno happened to be EINVAL before, even the first check may falsely pass. Also use EXPECT/ASSERT consistently. Currently there is an inconsistent mix without obvious reasons for usage of one or another. Fixes: 179ef035992e ("selftests: Add kselftest for syscall user dispatch") Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/af6a04dbfef9af8570f5bab43e3ef1416b62699a.1747839857.git.dvyukov@google.com
2025-06-12Merge tag 'net-6.16-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from bluetooth and wireless. Current release - regressions: - af_unix: allow passing cred for embryo without SO_PASSCRED/SO_PASSPIDFD Current release - new code bugs: - eth: airoha: correct enable mask for RX queues 16-31 - veth: prevent NULL pointer dereference in veth_xdp_rcv when peer disappears under traffic - ipv6: move fib6_config_validate() to ip6_route_add(), prevent invalid routes Previous releases - regressions: - phy: phy_caps: don't skip better duplex match on non-exact match - dsa: b53: fix untagged traffic sent via cpu tagged with VID 0 - Revert "wifi: mwifiex: Fix HT40 bandwidth issue.", it caused transient packet loss, exact reason not fully understood, yet Previous releases - always broken: - net: clear the dst when BPF is changing skb protocol (IPv4 <> IPv6) - sched: sfq: fix a potential crash on gso_skb handling - Bluetooth: intel: improve rx buffer posting to avoid causing issues in the firmware - eth: intel: i40e: make reset handling robust against multiple requests - eth: mlx5: ensure FW pages are always allocated on the local NUMA node, even when device is configure to 'serve' another node - wifi: ath12k: fix GCC_GCC_PCIE_HOT_RST definition for WCN7850, prevent kernel crashes - wifi: ath11k: avoid burning CPU in ath11k_debugfs_fw_stats_request() for 3 sec if fw_stats_done is not set" * tag 'net-6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits) selftests: drv-net: rss_ctx: Add test for ntuple rules targeting default RSS context net: ethtool: Don't check if RSS context exists in case of context 0 af_unix: Allow passing cred for embryo without SO_PASSCRED/SO_PASSPIDFD. ipv6: Move fib6_config_validate() to ip6_route_add(). net: drv: netdevsim: don't napi_complete() from netpoll net/mlx5: HWS, Add error checking to hws_bwc_rule_complex_hash_node_get() veth: prevent NULL pointer dereference in veth_xdp_rcv net_sched: remove qdisc_tree_flush_backlog() net_sched: ets: fix a race in ets_qdisc_change() net_sched: tbf: fix a race in tbf_change() net_sched: red: fix a race in __red_change() net_sched: prio: fix a race in prio_tune() net_sched: sch_sfq: reject invalid perturb period net: phy: phy_caps: Don't skip better duplex macth on non-exact match MAINTAINERS: Update Kuniyuki Iwashima's email address. selftests: net: add test case for NAT46 looping back dst net: clear the dst when changing skb protocol net/mlx5e: Fix number of lanes to UNKNOWN when using data_rate_oper net/mlx5e: Fix leak of Geneve TLV option object net/mlx5: HWS, make sure the uplink is the last destination ...
2025-06-12selftests: drv-net: rss_ctx: Add test for ntuple rules targeting default RSS ↵Gal Pressman
context Add test_rss_default_context_rule() to verify that ntuple rules can correctly direct traffic to the default RSS context (context 0). The test creates two ntuple rules with explicit location priorities: - A high-priority rule (loc 0) directing specific port traffic to context 0. - A low-priority rule (loc 1) directing all other TCP traffic to context 1. This validates that: 1. Rules targeting the default context function properly. 2. Traffic steering works as expected when mixing default and additional RSS contexts. The test was written by AI, and reviewed by humans. Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Gal Pressman <gal@nvidia.com> Link: https://patch.msgid.link/20250612071958.1696361-3-gal@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-12selftests/coredump: add coredump server selftestsChristian Brauner
This adds extensive tests for the coredump server. Link: https://lore.kernel.org/20250603-work-coredump-socket-protocol-v2-5-05a5f0c18ecc@kernel.org Acked-by: Lennart Poettering <lennart@poettering.net> Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-12selftests/coredump: cleanup coredump testsChristian Brauner
Make the selftests we added this cycle easier to read. Link: https://lore.kernel.org/20250603-work-coredump-socket-protocol-v2-3-05a5f0c18ecc@kernel.org Acked-by: Lennart Poettering <lennart@poettering.net> Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-12selftests/coredump: fix buildChristian Brauner
Fix various warnings in the selftest build. Link: https://lore.kernel.org/20250603-work-coredump-socket-protocol-v2-2-05a5f0c18ecc@kernel.org Acked-by: Lennart Poettering <lennart@poettering.net> Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-11selftests/mm: skip failed memfd setups in gup_longtermMark Brown
Unlike the other cases gup_longterm's memfd tests previously skipped the test when failing to set up the file descriptor to test. Restore this behavior to avoid hitting failures when hugetlb isn't configured. Link: https://lkml.kernel.org/r/20250605-selftest-mm-gup-longterm-tweaks-v1-1-2fae34b05958@kernel.org Fixes: 66bce7afbaca ("selftests/mm: fix test result reporting in gup_longterm") Signed-off-by: Mark Brown <broonie@kernel.org> Reported-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Closes: https://lkml.kernel.org/r/a76fc252-0fe3-4d4b-a9a1-4a2895c2680d@lucifer.local Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Tested-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-11selftests: net: add test case for NAT46 looping back dstJakub Kicinski
Simple test for crash involving multicast loopback and stale dst. Reuse exising NAT46 program. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250610001245.1981782-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-11Merge tag 'kvmarm-fixes-6.16-2' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 6.16, take #2 - Rework of system register accessors for system registers that are directly writen to memory, so that sanitisation of the in-memory value happens at the correct time (after the read, or before the write). For convenience, RMW-style accessors are also provided. - Multiple fixes for the so-called "arch-timer-edge-cases' selftest, which was always broken.
2025-06-10selftests/nolibc: make stackprotector probing more robustThomas Weißschuh
nolibc only supports symbol-based stackprotectors, based on the global variable __stack_chk_guard. Support for this differs between architectures and toolchains. Some use the symbol mode by default, some require a flag to enable it and some don't support it at all. Before the nolibc test Makefile required the availability of "-mstack-protector-guard=global" to enable stackprotectors. While this flag makes sure that the correct mode is available it doesn't work where the correct mode is the only supported one and therefore the flag is not implemented. Switch to a more dynamic probing mechanism. This correctly enables stack protectors for mips, loongarch and m68k. Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250609-nolibc-stackprotector-robust-v1-1-a1cfc92a568a@weissschuh.net Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-06-09selftests/x86: Add a test to detect infinite SIGTRAP handler loopXin Li (Intel)
When FRED is enabled, if the Trap Flag (TF) is set without an external debugger attached, it can lead to an infinite loop in the SIGTRAP handler. To avoid this, the software event flag in the augmented SS must be cleared, ensuring that no single-step trap remains pending when ERETU completes. This test checks for that specific scenario—verifying whether the kernel correctly prevents an infinite SIGTRAP loop in this edge case when FRED is enabled. The test should _always_ pass with IDT event delivery, thus no need to disable the test even when FRED is not enabled. Signed-off-by: Xin Li (Intel) <xin@zytor.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Tested-by: Sohil Mehta <sohil.mehta@intel.com> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20250609084054.2083189-3-xin%40zytor.com
2025-06-08Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull mount fixes from Al Viro: "Various mount-related bugfixes: - split the do_move_mount() checks in subtree-of-our-ns and entire-anon cases and adapt detached mount propagation selftest for mount_setattr - allow clone_private_mount() for a path on real rootfs - fix a race in call of has_locked_children() - fix move_mount propagation graph breakage by MOVE_MOUNT_SET_GROUP - make sure clone_private_mnt() caller has CAP_SYS_ADMIN in the right userns - avoid false negatives in path_overmount() - don't leak MNT_LOCKED from parent to child in finish_automount() - do_change_type(): refuse to operate on unmounted/not ours mounts" * tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: do_change_type(): refuse to operate on unmounted/not ours mounts clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns selftests/mount_setattr: adapt detached mount propagation test do_move_mount(): split the checks in subtree-of-our-ns and entire-anon cases fs: allow clone_private_mount() for a path on real rootfs fix propagation graph breakage by MOVE_MOUNT_SET_GROUP move_mount(2) finish_automount(): don't leak MNT_LOCKED from parent to child path_overmount(): avoid false negatives fs/fhandle.c: fix a race in call of has_locked_children()
2025-06-06Merge tag 'mm-stable-2025-06-06-16-09' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull more MM updates from Andrew Morton: "The series 'Fix uprobe pte be overwritten when expanding vma' fixes a longstanding and quite obscure bug related to the vma merging of the uprobe mmap page" * tag 'mm-stable-2025-06-06-16-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: selftests/mm: add test about uprobe pte be orphan during vma merge selftests/mm: extract read_sysfs and write_sysfs into vm_util mm: expose abnormal new_pte during move_ptes mm: fix uprobe pte be overwritten when expanding vma mm/damon: s/primitives/code/ on comments
2025-06-07selftests/mount_setattr: adapt detached mount propagation testChristian Brauner
Make sure that detached trees don't receive mount propagation. Signed-off-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-06-06Merge tag 'riscv-for-linus-6.16-mw1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Support for the FWFT SBI extension, which is part of SBI 3.0 and a dependency for many new SBI and ISA extensions - Support for getrandom() in the VDSO - Support for mseal - Optimized routines for raid6 syndrome and recovery calculations - kexec_file() supports loading Image-formatted kernel binaries - Improvements to the instruction patching framework to allow for atomic instruction patching, along with rules as to how systems need to behave in order to function correctly - Support for a handful of new ISA extensions: Svinval, Zicbop, Zabha, some SiFive vendor extensions - Various fixes and cleanups, including: misaligned access handling, perf symbol mangling, module loading, PUD THPs, and improved uaccess routines * tag 'riscv-for-linus-6.16-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (69 commits) riscv: uaccess: Only restore the CSR_STATUS SUM bit RISC-V: vDSO: Wire up getrandom() vDSO implementation riscv: enable mseal sysmap for RV64 raid6: Add RISC-V SIMD syndrome and recovery calculations riscv: mm: Add support for Svinval extension RISC-V: Documentation: Add enough title underlines to CMODX riscv: Improve Kconfig help for RISCV_ISA_V_PREEMPTIVE MAINTAINERS: Update Atish's email address riscv: uaccess: do not do misaligned accesses in get/put_user() riscv: process: use unsigned int instead of unsigned long for put_user() riscv: make unsafe user copy routines use existing assembly routines riscv: hwprobe: export Zabha extension riscv: Make regs_irqs_disabled() more clear perf symbols: Ignore mapping symbols on riscv RISC-V: Kconfig: Fix help text of CMDLINE_EXTEND riscv: module: Optimize PLT/GOT entry counting riscv: Add support for PUD THP riscv: xchg: Prefetch the destination word for sc.w riscv: Add ARCH_HAS_PREFETCH[W] support with Zicbop riscv: Add support for Zicbop ...
2025-06-06Merge tag 'block-6.16-20250606' of git://git.kernel.dk/linuxLinus Torvalds
Pull more block updates from Jens Axboe: - NVMe pull request via Christoph: - TCP error handling fix (Shin'ichiro Kawasaki) - TCP I/O stall handling fixes (Hannes Reinecke) - fix command limits status code (Keith Busch) - support vectored buffers also for passthrough (Pavel Begunkov) - spelling fixes (Yi Zhang) - MD pull request via Yu: - fix REQ_RAHEAD and REQ_NOWAIT IO err handling for raid1/10 - fix max_write_behind setting for dm-raid - some minor cleanups - Integrity data direction fix and cleanup - bcache NULL pointer fix - Fix for loop missing write start/end handling - Decouple hardware queues and IO threads in ublk - Slew of ublk selftests additions and updates * tag 'block-6.16-20250606' of git://git.kernel.dk/linux: (29 commits) nvme: spelling fixes nvme-tcp: fix I/O stalls on congested sockets nvme-tcp: sanitize request list handling nvme-tcp: remove tag set when second admin queue config fails nvme: enable vectored registered bufs for passthrough cmds nvme: fix implicit bool to flags conversion nvme: fix command limits status code selftests: ublk: kublk: improve behavior on init failure block: flip iter directions in blk_rq_integrity_map_user() block: drop direction param from bio_integrity_copy_user() selftests: ublk: cover PER_IO_DAEMON in more stress tests Documentation: ublk: document UBLK_F_PER_IO_DAEMON selftests: ublk: add stress test for per io daemons selftests: ublk: add functional test for per io daemons selftests: ublk: kublk: decouple ublk_queues from ublk server threads selftests: ublk: kublk: move per-thread data out of ublk_queue selftests: ublk: kublk: lift queue initialization out of thread selftests: ublk: kublk: tie sqe allocation to io instead of queue selftests: ublk: kublk: plumb q_id in io_uring user_data ublk: have a per-io daemon instead of a per-queue daemon ...
2025-06-05selftests/mm: add test about uprobe pte be orphan during vma mergePu Lehui
Add test about uprobe pte be orphan during vma merge. [akpm@linux-foundation.org: include sys/syscall.h, per Lorenzo] Link: https://lkml.kernel.org/r/20250529155650.4017699-5-pulehui@huaweicloud.com Signed-off-by: Pu Lehui <pulehui@huawei.com> Cc: Jann Horn <jannh@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-05selftests/mm: extract read_sysfs and write_sysfs into vm_utilPu Lehui
Extract read_sysfs and write_sysfs into vm_util. Meanwhile, rename the function in thuge-gen that has the same name as read_sysfs. Link: https://lkml.kernel.org/r/20250529155650.4017699-4-pulehui@huaweicloud.com Signed-off-by: Pu Lehui <pulehui@huawei.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Jann Horn <jannh@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-05RISC-V: vDSO: Wire up getrandom() vDSO implementationXi Ruoyao
Hook up the generic vDSO implementation to the generic vDSO getrandom implementation by providing the required __arch_chacha20_blocks_nostack and getrandom_syscall implementations. Also wire up the selftests. The benchmark result: vdso: 25000000 times in 2.466341333 seconds libc: 25000000 times in 41.447720005 seconds syscall: 25000000 times in 41.043926672 seconds vdso: 25000000 x 256 times in 162.286219353 seconds libc: 25000000 x 256 times in 2953.855018685 seconds syscall: 25000000 x 256 times in 2796.268546000 seconds [ alex: - Fix dynamic relocation - Squash Nathan's fix https://lore.kernel.org/all/20250423-riscv-fix-compat_vdso-lld-v2-1-b7bbbc244501@kernel.org/ - Add comment from Loongarch ] Signed-off-by: Xi Ruoyao <xry111@xry111.site> Link: https://lore.kernel.org/r/20250411024600.16045-1-xry111@xry111.site Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
2025-06-05Merge tag 'net-6.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from CAN, wireless, Bluetooth, and Netfilter. Current release - regressions: - Revert "kunit: configs: Enable CONFIG_INIT_STACK_ALL_PATTERN in all_tests", makes kunit error out if compiler is old - wifi: iwlwifi: mvm: fix assert on suspend - rxrpc: fix return from none_validate_challenge() Current release - new code bugs: - ovpn: couple of fixes for socket cleanup and UDP-tunnel teardown - can: kvaser_pciefd: refine error prone echo_skb_max handling logic - fix net_devmem_bind_dmabuf() stub when DEVMEM not compiled - eth: airoha: fixes for config / accel in bridge mode Previous releases - regressions: - Bluetooth: hci_qca: move the SoC type check to the right place, fix GPIO integration - prevent a NULL deref in rtnl_create_link() after locking changes - fix udp gso skb_segment after pull from frag_list - hv_netvsc: fix potential deadlock in netvsc_vf_setxdp() Previous releases - always broken: - netfilter: - nf_nat: also check reverse tuple to obtain clashing entry - nf_set_pipapo_avx2: fix initial map fill (zeroing) - fix the helper for incremental update of packet checksums after modifying the IP address, used by ILA and BPF - eth: - stmmac: prevent div by 0 when clock rate is misconfigured - ice: fix Tx scheduler handling of XDP and changing queue count - eth: fix support for the RGMII interface when delays configured" * tag 'net-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits) calipso: unlock rcu before returning -EAFNOSUPPORT seg6: Fix validation of nexthop addresses net: prevent a NULL deref in rtnl_create_link() net: annotate data-races around cleanup_net_task selftests: drv-net: tso: make bkg() wait for socat to quit selftests: drv-net: tso: fix the GRE device name selftests: drv-net: add configs for the TSO test wireguard: device: enable threaded NAPI netlink: specs: rt-link: decode ip6gre netlink: specs: rt-link: add missing byte-order properties net: wwan: mhi_wwan_mbim: use correct mux_id for multiplexing wifi: cfg80211/mac80211: correctly parse S1G beacon optional elements net: dsa: b53: do not touch DLL_IQQD on bcm53115 net: dsa: b53: allow RGMII for bcm63xx RGMII ports net: dsa: b53: do not configure bcm63xx's IMP port interface net: dsa: b53: do not enable RGMII delay on bcm63xx net: dsa: b53: do not enable EEE on bcm63xx net: ti: icssg-prueth: Fix swapped TX stats for MII interfaces. selftests: netfilter: nft_nat.sh: add test for reverse clash with nat netfilter: nf_nat: also check reverse tuple to obtain clashing entry ...
2025-06-05selftests: drv-net: tso: make bkg() wait for socat to quitJakub Kicinski
Commit 846742f7e32f ("selftests: drv-net: add a warning for bkg + shell + terminate") added a warning for bkg() used with terminate=True. The tso test was missed as we didn't have it running anywhere in NIPA. Add exit_wait=True, to avoid: # Warning: combining shell and terminate is risky! # SIGTERM may not reach the child on zsh/ksh! getting printed twice for every variant. Fixes: 0d0f4174f6c8 ("selftests: drv-net: add a simple TSO test") Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250604012055.891431-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-05selftests: drv-net: tso: fix the GRE device nameJakub Kicinski
The device type for IPv4 GRE is "gre" not "ipgre", unlike for IPv6 which uses "ip6gre". Not sure how I missed this when writing the test, perhaps because all HW I have access to is on an IPv6-only network. Fixes: 0d0f4174f6c8 ("selftests: drv-net: add a simple TSO test") Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250604012031.891242-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-05selftests: drv-net: add configs for the TSO testJakub Kicinski
Add missing config options for the tso.py test, specifically to make sure the kernel is built with vxlan and gre tunnels. I noticed this while adding a TSO-capable device QEMU to the CI. Previously we only run virtio tests and it doesn't report LSO stats on the QEMU we have. Fixes: 0d0f4174f6c8 ("selftests: drv-net: add a simple TSO test") Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250604001653.853008-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-05KVM: arm64: selftests: Determine effective counter width in ↵Sebastian Ott
arch_timer_edge_cases arch_timer_edge_cases uses ~0 as the maximum counter value, however there's no architectural guarantee that this is valid. Figure out the effective counter width based on the effective frequency like it's done by the kernel. This also serves as a workaround for AC03_CPU_14 that led to the following assertion failure on ampere-one machines: ==== Test Assertion Failure ==== arm64/arch_timer_edge_cases.c:169: timer_condition == istatus pid=11236 tid=11236 errno=4 - Interrupted system call 1 0x0000000000404ce7: test_run at arch_timer_edge_cases.c:938 2 0x0000000000401ebb: main at arch_timer_edge_cases.c:1053 3 0x0000ffff9fa8625b: ?? ??:0 4 0x0000ffff9fa8633b: ?? ??:0 5 0x0000000000401fef: _start at ??:? 0x1 != 0x0 (timer_condition != istatus) Note that the following subtest only worked since the counter initialized with CVAL_MAX would instantly overflow (which is no longer the case): test_set_cnt_after_cval_no_irq(timer, 0, DEF_CNT, CVAL_MAX, sm); To fix this we could swap CVAL_MAX for 0 here but since that is already done by test_move_counters_behind_timers() let's remove that subtest. Link: https://lore.kernel.org/kvmarm/ac1de1d2-ef2b-d439-dc48-8615e121b07b@redhat.com Link: https://amperecomputing.com/assets/AmpereOne_Developer_ER_v0_80_20240823_28945022f4.pdf Signed-off-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250605103613.14544-5-sebott@redhat.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-06-05KVM: arm64: selftests: Fix xVAL init in arch_timer_edge_casesSebastian Ott
arch_timer_edge_cases hits the following assertion in < 10% of the test runs: ==== Test Assertion Failure ==== arm64/arch_timer_edge_cases.c:490: timer_get_cntct(timer) >= DEF_CNT + (timer_get_cntfrq() * (uint64_t)(delta_2_ms) / 1000) pid=17110 tid=17110 errno=4 - Interrupted system call 1 0x0000000000404ec7: test_run at arch_timer_edge_cases.c:945 2 0x0000000000401fa3: main at arch_timer_edge_cases.c:1074 3 0x0000ffffa774b587: ?? ??:0 4 0x0000ffffa774b65f: ?? ??:0 5 0x000000000040206f: _start at ??:? timer_get_cntct(timer) >= DEF_CNT + msec_to_cycles(delta_2_ms) Enabling the timer without proper xval initialization in set_tval_irq() resulted in an early interrupt during timer reprogramming. Make sure to set the xval before setting the enable bit. Signed-off-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250605103613.14544-4-sebott@redhat.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-06-05KVM: arm64: selftests: Fix thread migration in arch_timer_edge_casesSebastian Ott
arch_timer_edge_cases tries to migrate itself across host cpus. Before the first test, it migrates to cpu 0 by setting up an affinity mask with only bit 0 set. After that it looks for the next possible cpu in the current affinity mask which still has only bit 0 set. So there is no migration at all. Fix this by reading the default mask at start and use this to find the next cpu in each iteration. Signed-off-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250605103613.14544-3-sebott@redhat.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-06-05KVM: arm64: selftests: Fix help text for arch_timer_edge_casesSebastian Ott
Fix the help text for arch_timer_edge_cases to show the correct option for setting the wait time. Signed-off-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250605103613.14544-2-sebott@redhat.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-06-05selftests/futex: Set the home_node in futex_numa_mpolSebastian Andrzej Siewior
The test fails at the MPOL step if multiple nodes are available. The reason is that mbind() sets the policy but the home_node, which is retrieved by the futex code, is not set. This causes to retrieve the current node and with multiple nodes it fails on one of the iterations. Use numa_set_mempolicy_home_node() to set the expected node. Use ksft_exit_fail_msg() to fail and exit in order not to confuse ktap. Fixes: 3163369407baf ("selftests/futex: Add futex_numa_mpol") Suggested-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20250528085521.1938355-3-bigeasy@linutronix.de
2025-06-05selftests/futex: getopt() requires int as return value.Sebastian Andrzej Siewior
Mark reported that futex_priv_hash fails on ARM64. It turns out that the command line parsing does not terminate properly and ends in the default case assuming an invalid option was passed. Use an int as the return type for getopt(). Closes: https://lore.kernel.org/all/31869a69-063f-44a3-a079-ba71b2506cce@sirena.org.uk/ Fixes: 3163369407baf ("selftests/futex: Add futex_numa_mpol") Fixes: cda95faef7bcf ("selftests/futex: Add futex_priv_hash") Reported-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20250528085521.1938355-2-bigeasy@linutronix.de
2025-06-05Merge tag 'nf-25-06-05' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Zero out the remainder in nft_pipapo AVX2 implementation, otherwise next lookup could bogusly report a mismatch. This is followed by two patches to update nft_pipapo selftests to cover for the previous bug. From Florian Westphal. 2) Check for reverse tuple too in case of esoteric NAT collisions for UDP traffic and extend selftest coverage. Also from Florian. netfilter pull request 25-06-05 * tag 'nf-25-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: selftests: netfilter: nft_nat.sh: add test for reverse clash with nat netfilter: nf_nat: also check reverse tuple to obtain clashing entry selftests: netfilter: nft_concat_range.sh: add datapath check for map fill bug selftests: netfilter: nft_concat_range.sh: prefer per element counters for testing netfilter: nf_set_pipapo_avx2: fix initial map fill ==================== Link: https://patch.msgid.link/20250605085735.52205-1-pablo@netfilter.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-05Merge tag 'ovpn-net-20250603' of https://github.com/OpenVPN/ovpn-net-nextPaolo Abeni
Antonio Quartulli says: ==================== In this batch you can find the following bug fixes: Patch 1: when releasing a UDP socket we were wrongly invoking setup_udp_tunnel_sock() with an empty config. This was not properly shutting down the UDP encap state. With this patch we simply undo what was done during setup. Patch 2: ovpn was holding a reference to a 'struct socket' without increasing its reference counter. This was intended and worked as expected until we hit a race condition where user space tries to close the socket while kernel space is also releasing it. In this case the (struct socket *)->sk member would disappear under our feet leading to a null-ptr-deref. This patch fixes this issue by having struct ovpn_socket hold a reference directly to the sk member while also increasing its reference counter. Patch 3: in case of errors along the TCP RX path (softirq) we want to immediately delete the peer, but this operation may sleep. With this patch we move the peer deletion to a scheduled worker. Patch 4 and 5 are instead fixing minor issues in the ovpn kselftests. * tag 'ovpn-net-20250603' of https://github.com/OpenVPN/ovpn-net-next: selftest/net/ovpn: fix missing file selftest/net/ovpn: fix TCP socket creation ovpn: avoid sleep in atomic context in TCP RX error path ovpn: ensure sk is still valid during cleanup ovpn: properly deconfigure UDP-tunnel ==================== Link: https://patch.msgid.link/20250603111110.4575-1-antonio@openvpn.net/ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-05selftests: netfilter: nft_nat.sh: add test for reverse clash with natFlorian Westphal
This will fail without the previous bug fix because we erronously believe that the clashing entry went way. However, the clash exists in the opposite direction due to an existing nat mapping: PASS: IP statless for ns2-LgTIuS ERROR: failed to test udp ns1-x4iyOW to ns2-LgTIuS with dnat rule step 2, result: "" This is partially adapted from test instructions from the below ubuntu tracker. Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2109889 Signed-off-by: Florian Westphal <fw@strlen.de> Tested-by: Shaun Brady <brady.1345@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
generated by cgit (git 2.34.1) at 2025-07-30 18:51:05 +0000