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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- Fix a use-after-free of the device iommu-group. Found in the arm-smmu
driver, but the fix is in generic code.
- Fix for the new Allwinner IOMMU driver to use the atomic
readl_timeout() variant in IO/TLB flushing code.
- A couple of cleanups to fix various compile warnings.
* tag 'iommu-fixes-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/arm-smmu: Mark qcom_smmu_client_of_match as possibly unused
iommu: Fix use-after-free in iommu_release_device
iommu/amd: Make amd_iommu_apply_ivrs_quirks() static inline
iommu: SUN50I_IOMMU should depend on HAS_DMA
iommu/sun50i: Remove unused variable
iommu/sun50i: Change the readl timeout to the atomic variant
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Five small fixes, four in driver and one in the SCSI Parallel
transport, which fixes an incredibly old bug so I suspect no-one has
actually used the functionality it fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: dh: Add Fujitsu device to devinfo and dh lists
scsi: mpt3sas: Fix error returns in BRM_status_show
scsi: mpt3sas: Fix unlock imbalance
scsi: iscsi: Change iSCSI workqueue max_active back to 1
scsi: scsi_transport_spi: Fix function pointer check
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"Just one fix of a recent patch (double free in an error path)"
* tag 'for-linus-5.8b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/xenbus: Fix a double free in xenbus_map_ring_pv()
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Dan Williams:
"A one-line Fix for key ring search permissions to address a regression
from -rc1"
* tag 'libnvdimm-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm/security: Fix key lookup permissions
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Pull networking fixes from David Miller:
1) Restore previous behavior of CAP_SYS_ADMIN wrt loading networking
BPF programs, from Maciej Żenczykowski.
2) Fix dropped broadcasts in mac80211 code, from Seevalamuthu
Mariappan.
3) Slay memory leak in nl80211 bss color attribute parsing code, from
Luca Coelho.
4) Get route from skb properly in ip_route_use_hint(), from Miaohe Lin.
5) Don't allow anything other than ARPHRD_ETHER in llc code, from Eric
Dumazet.
6) xsk code dips too deeply into DMA mapping implementation internals.
Add dma_need_sync and use it. From Christoph Hellwig
7) Enforce power-of-2 for BPF ringbuf sizes. From Andrii Nakryiko.
8) Check for disallowed attributes when loading flow dissector BPF
programs. From Lorenz Bauer.
9) Correct packet injection to L3 tunnel devices via AF_PACKET, from
Jason A. Donenfeld.
10) Don't advertise checksum offload on ipa devices that don't support
it. From Alex Elder.
11) Resolve several issues in TCP MD5 signature support. Missing memory
barriers, bogus options emitted when using syncookies, and failure
to allow md5 key changes in established states. All from Eric
Dumazet.
12) Fix interface leak in hsr code, from Taehee Yoo.
13) VF reset fixes in hns3 driver, from Huazhong Tan.
14) Make loopback work again with ipv6 anycast, from David Ahern.
15) Fix TX starvation under high load in fec driver, from Tobias
Waldekranz.
16) MLD2 payload lengths not checked properly in bridge multicast code,
from Linus Lüssing.
17) Packet scheduler code that wants to find the inner protocol
currently only works for one level of VLAN encapsulation. Allow
Q-in-Q situations to work properly here, from Toke
Høiland-Jørgensen.
18) Fix route leak in l2tp, from Xin Long.
19) Resolve conflict between the sk->sk_user_data usage of bpf reuseport
support and various protocols. From Martin KaFai Lau.
20) Fix socket cgroup v2 reference counting in some situations, from
Cong Wang.
21) Cure memory leak in mlx5 connection tracking offload support, from
Eli Britstein.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (146 commits)
mlxsw: pci: Fix use-after-free in case of failed devlink reload
mlxsw: spectrum_router: Remove inappropriate usage of WARN_ON()
net: macb: fix call to pm_runtime in the suspend/resume functions
net: macb: fix macb_suspend() by removing call to netif_carrier_off()
net: macb: fix macb_get/set_wol() when moving to phylink
net: macb: mark device wake capable when "magic-packet" property present
net: macb: fix wakeup test in runtime suspend/resume routines
bnxt_en: fix NULL dereference in case SR-IOV configuration fails
libbpf: Fix libbpf hashmap on (I)LP32 architectures
net/mlx5e: CT: Fix memory leak in cleanup
net/mlx5e: Fix port buffers cell size value
net/mlx5e: Fix 50G per lane indication
net/mlx5e: Fix CPU mapping after function reload to avoid aRFS RX crash
net/mlx5e: Fix VXLAN configuration restore after function reload
net/mlx5e: Fix usage of rcu-protected pointer
net/mxl5e: Verify that rpriv is not NULL
net/mlx5: E-Switch, Fix vlan or qos setting in legacy mode
net/mlx5: Fix eeprom support for SFP module
cgroup: Fix sock_cgroup_data on big-endian.
selftests: bpf: Fix detach from sockmap tests
...
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In case devlink reload failed, it is possible to trigger a
use-after-free when querying the kernel for device info via 'devlink dev
info' [1].
This happens because as part of the reload error path the PCI command
interface is de-initialized and its mailboxes are freed. When the
devlink '->info_get()' callback is invoked the device is queried via the
command interface and the freed mailboxes are accessed.
Fix this by initializing the command interface once during probe and not
during every reload.
This is consistent with the other bus used by mlxsw (i.e., 'mlxsw_i2c')
and also allows user space to query the running firmware version (for
example) from the device after a failed reload.
[1]
BUG: KASAN: use-after-free in memcpy include/linux/string.h:406 [inline]
BUG: KASAN: use-after-free in mlxsw_pci_cmd_exec+0x177/0xa60 drivers/net/ethernet/mellanox/mlxsw/pci.c:1675
Write of size 4096 at addr ffff88810ae32000 by task syz-executor.1/2355
CPU: 1 PID: 2355 Comm: syz-executor.1 Not tainted 5.8.0-rc2+ #29
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xf6/0x16e lib/dump_stack.c:118
print_address_description.constprop.0+0x1c/0x250 mm/kasan/report.c:383
__kasan_report mm/kasan/report.c:513 [inline]
kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530
check_memory_region_inline mm/kasan/generic.c:186 [inline]
check_memory_region+0x14e/0x1b0 mm/kasan/generic.c:192
memcpy+0x39/0x60 mm/kasan/common.c:106
memcpy include/linux/string.h:406 [inline]
mlxsw_pci_cmd_exec+0x177/0xa60 drivers/net/ethernet/mellanox/mlxsw/pci.c:1675
mlxsw_cmd_exec+0x249/0x550 drivers/net/ethernet/mellanox/mlxsw/core.c:2335
mlxsw_cmd_access_reg drivers/net/ethernet/mellanox/mlxsw/cmd.h:859 [inline]
mlxsw_core_reg_access_cmd drivers/net/ethernet/mellanox/mlxsw/core.c:1938 [inline]
mlxsw_core_reg_access+0x2f6/0x540 drivers/net/ethernet/mellanox/mlxsw/core.c:1985
mlxsw_reg_query drivers/net/ethernet/mellanox/mlxsw/core.c:2000 [inline]
mlxsw_devlink_info_get+0x17f/0x6e0 drivers/net/ethernet/mellanox/mlxsw/core.c:1090
devlink_nl_info_fill.constprop.0+0x13c/0x2d0 net/core/devlink.c:4588
devlink_nl_cmd_info_get_dumpit+0x246/0x460 net/core/devlink.c:4648
genl_lock_dumpit+0x85/0xc0 net/netlink/genetlink.c:575
netlink_dump+0x515/0xe50 net/netlink/af_netlink.c:2245
__netlink_dump_start+0x53d/0x830 net/netlink/af_netlink.c:2353
genl_family_rcv_msg_dumpit.isra.0+0x296/0x300 net/netlink/genetlink.c:638
genl_family_rcv_msg net/netlink/genetlink.c:733 [inline]
genl_rcv_msg+0x78d/0x9d0 net/netlink/genetlink.c:753
netlink_rcv_skb+0x152/0x440 net/netlink/af_netlink.c:2469
genl_rcv+0x24/0x40 net/netlink/genetlink.c:764
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x53a/0x750 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x850/0xd90 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0x150/0x190 net/socket.c:672
____sys_sendmsg+0x6d8/0x840 net/socket.c:2363
___sys_sendmsg+0xff/0x170 net/socket.c:2417
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2450
do_syscall_64+0x56/0xa0 arch/x86/entry/common.c:359
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: a9c8336f6544 ("mlxsw: core: Add support for devlink info command")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We should not trigger a warning when a memory allocation fails. Remove
the WARN_ON().
The warning is constantly triggered by syzkaller when it is injecting
faults:
[ 2230.758664] FAULT_INJECTION: forcing a failure.
[ 2230.758664] name failslab, interval 1, probability 0, space 0, times 0
[ 2230.762329] CPU: 3 PID: 1407 Comm: syz-executor.0 Not tainted 5.8.0-rc2+ #28
...
[ 2230.898175] WARNING: CPU: 3 PID: 1407 at drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:6265 mlxsw_sp_router_fib_event+0xfad/0x13e0
[ 2230.898179] Kernel panic - not syncing: panic_on_warn set ...
[ 2230.898183] CPU: 3 PID: 1407 Comm: syz-executor.0 Not tainted 5.8.0-rc2+ #28
[ 2230.898190] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
Fixes: 3057224e014c ("mlxsw: spectrum_router: Implement FIB offload in deferred work")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The calls to pm_runtime_force_suspend/resume() functions are only
relevant if the device is not configured to act as a WoL wakeup source.
Add the device_may_wakeup() test before calling them.
Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Sergio Prado <sergio.prado@e-labworks.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As we now use the phylink call to phylink_stop() in the non-WoL path,
there is no need for this call to netif_carrier_off() anymore. It can
disturb the underlying phylink FSM.
Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Keep previous function goals and integrate phylink actions to them.
phylink_ethtool_get_wol() is not enough to figure out if Ethernet driver
supports Wake-on-Lan.
Initialization of "supported" and "wolopts" members is done in phylink
function, no need to keep them in calling function.
phylink_ethtool_set_wol() return value is considered and determines
if the MAC has to handle WoL or not. The case where the PHY doesn't
implement WoL leads to the MAC configuring it to provide this feature.
Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Antoine Tenart <antoine.tenart@bootlin.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Change the way the "magic-packet" DT property is handled in the
macb_probe() function, matching DT binding documentation.
Now we mark the device as "wakeup capable" instead of calling the
device_init_wakeup() function that would enable the wakeup source.
For Ethernet WoL, enabling the wakeup_source is done by
using ethtool and associated macb_set_wol() function that
already calls device_set_wakeup_enable() for this purpose.
That would reduce power consumption by cutting more clocks if
"magic-packet" property is set but WoL is not configured by ethtool.
Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Sergio Prado <sergio.prado@e-labworks.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the proper struct device pointer to check if the wakeup flag
and wakeup source are positioned.
Use the one passed by function call which is equivalent to
&bp->dev->dev.parent.
It's preventing the trigger of a spurious interrupt in case the
Wake-on-Lan feature is used.
Fixes: d54f89af6cc4 ("net: macb: Add pm runtime support")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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we need to set 'active_vfs' back to 0, if something goes wrong during the
allocation of SR-IOV resources: otherwise, further VF configurations will
wrongly assume that bp->pf.vf[x] are valid memory locations, and commands
like the ones in the following sequence:
# echo 2 >/sys/bus/pci/devices/${ADDR}/sriov_numvfs
# ip link set dev ens1f0np0 up
# ip link set dev ens1f0np0 vf 0 trust on
will cause a kernel crash similar to this:
bnxt_en 0000:3b:00.0: not enough MMIO resources for SR-IOV
BUG: kernel NULL pointer dereference, address: 0000000000000014
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 43 PID: 2059 Comm: ip Tainted: G I 5.8.0-rc2.upstream+ #871
Hardware name: Dell Inc. PowerEdge R740/08D89F, BIOS 2.2.11 06/13/2019
RIP: 0010:bnxt_set_vf_trust+0x5b/0x110 [bnxt_en]
Code: 44 24 58 31 c0 e8 f5 fb ff ff 85 c0 0f 85 b6 00 00 00 48 8d 1c 5b 41 89 c6 b9 0b 00 00 00 48 c1 e3 04 49 03 9c 24 f0 0e 00 00 <8b> 43 14 89 c2 83 c8 10 83 e2 ef 45 84 ed 49 89 e5 0f 44 c2 4c 89
RSP: 0018:ffffac6246a1f570 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000000b
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff98b28f538900
RBP: ffff98b28f538900 R08: 0000000000000000 R09: 0000000000000008
R10: ffffffffb9515be0 R11: ffffac6246a1f678 R12: ffff98b28f538000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffc05451e0
FS: 00007fde0f688800(0000) GS:ffff98baffd40000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000014 CR3: 000000104bb0a003 CR4: 00000000007606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
do_setlink+0x994/0xfe0
__rtnl_newlink+0x544/0x8d0
rtnl_newlink+0x47/0x70
rtnetlink_rcv_msg+0x29f/0x350
netlink_rcv_skb+0x4a/0x110
netlink_unicast+0x21d/0x300
netlink_sendmsg+0x329/0x450
sock_sendmsg+0x5b/0x60
____sys_sendmsg+0x204/0x280
___sys_sendmsg+0x88/0xd0
__sys_sendmsg+0x5e/0xa0
do_syscall_64+0x47/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: c0c050c58d840 ("bnxt_en: New Broadcom ethernet driver.")
Reported-by: Fei Liu <feliu@redhat.com>
CC: Jonathan Toppins <jtoppins@redhat.com>
CC: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Acked-by: Jonathan Toppins <jtoppins@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull rdma fixes from Jason Gunthorpe:
"Small update, a few more merge window bugs and normal driver bug
fixes:
- Two merge window regressions in mlx5: a error path bug found by
syzkaller and some lost code during a rework preventing ipoib from
working in some configurations
- Silence clang compilation warning in OPA related code
- Fix a long standing race condition in ib_nl for ACM
- Resolve when the HFI1 is shutdown"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/mlx5: Set PD pointers for the error flow unwind
IB/mlx5: Fix 50G per lane indication
RDMA/siw: Fix reporting vendor_part_id
IB/sa: Resolv use-after-free in ib_nl_make_request()
IB/hfi1: Do not destroy link_wq when the device is shut down
IB/hfi1: Do not destroy hfi1_wq when the device is shut down
RDMA/mlx5: Fix legacy IPoIB QP initialization
IB/hfi1: Add explicit cast OPA_MTU_8192 to 'enum ib_mtu'
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Pull block fixes from Jens Axboe:
- Fix for inflight accounting, which affects only dm (Ming)
- Fix documentation error for bfq (Yufen)
- Fix memory leak for nbd (Zheng)
* tag 'block-5.8-2020-07-10' of git://git.kernel.dk/linux-block:
nbd: Fix memory leak in nbd_add_socket
blk-mq: consider non-idle request as "inflight" in blk_mq_rq_inflight()
docs: block: update and fix tiny error for bfq
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Fix an issue in the AMD driver for the UART0 group
- Fix a glitch issue in the Baytrail pin controller
* tag 'pinctrl-v5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: baytrail: Fix pin being driven low for a while on gpiod_get(..., GPIOD_OUT_HIGH)
pinctrl: amd: fix npins for uart0 in kerncz_groups
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Some GPIO fixes, most of them for the PCA953x that Andy worked hard to
fix up.
- Fix two runtime PM errorpath problems in the Arizona GPIO driver.
- Fix three interrupt issues in the PCA953x driver.
- Fix the automatic address increment handling in the PCA953x driver
again.
- Add a quirk to the PCA953x that fixes a problem in the Intel
Galileo Gen 2"
* tag 'gpio-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: Fix GPIO resource leak on Intel Galileo Gen 2
gpio: pca953x: disable regmap locking for automatic address incrementing
gpio: pca953x: Fix direction setting when configure an IRQ
gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2
gpio: pca953x: Synchronize interrupt handler properly
gpio: arizona: put pm_runtime in case of failure
gpio: arizona: handle pm_runtime_get_sync failure case
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"An unfortunately large collection of arm64 fixes for -rc5.
Some of this is absolutely trivial, but the alternatives, vDSO and CPU
errata workaround fixes are significant. At least people are finding
and fixing these things, I suppose.
- Fix workaround for CPU erratum #1418040 to disable the compat vDSO
- Fix Oops when single-stepping with KGDB
- Fix memory attributes for hypervisor device mappings at EL2
- Fix memory leak in PSCI and remove useless variable assignment
- Fix up some comments and asm labels in our entry code
- Fix broken register table formatting in our generated html docs
- Fix missing NULL sentinel in CPU errata workaround list
- Fix patching of branches in alternative instruction sections"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/alternatives: don't patch up internal branches
arm64: Add missing sentinel to erratum_1463225
arm64: Documentation: Fix broken table in generated HTML
arm64: kgdb: Fix single-step exception handling oops
arm64: entry: Tidy up block comments and label numbers
arm64: Rework ARM_ERRATUM_1414080 handling
arm64: arch_timer: Disable the compat vdso for cores affected by ARM64_WORKAROUND_1418040
arm64: arch_timer: Allow an workaround descriptor to disable compat vdso
arm64: Introduce a way to disable the 32bit vdso
arm64: entry: Fix the typo in the comment of el1_dbg()
drivers/firmware/psci: Assign @err directly in hotplug_tests()
drivers/firmware/psci: Fix memory leakage in alloc_init_cpu_groups()
KVM: arm64: Fix definition of PAGE_HYP_DEVICE
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- Override DLL_CONFIG only with valid values in sdhci-msm
- Get rid of of_match_ptr() macro to fix warning in owl-mmc
- Limit segments to 1 to fix meson-gx G12A/G12B SoCs
* tag 'mmc-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-msm: Override DLL_CONFIG only if the valid value is supplied
mmc: owl-mmc: Get rid of of_match_ptr() macro
mmc: meson-gx: limit segments to 1 when dram-access-quirk is needed
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When there is an error the caller frees "info->node" so the free here
will result in a double free. We should just delete first kfree().
Fixes: 3848e4e0a32a ("xen/xenbus: avoid large structs and arrays on the stack")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200710113610.GA92345@mwanda
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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CT entries are deleted via a workqueue from netfilter. If removing the
module before that, the rules are cleaned by the driver itself, but the
memory entries for them are not freed. Fix that.
Fixes: ac991b48d43c ("net/mlx5e: CT: Offload established flows")
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Device unit for port buffers size, xoff_threshold and xon_threshold is
cells. Fix a bug in driver where cell unit size was hard-coded to
128 bytes. This hard-coded value is buggy, as it is wrong for some hardware
versions.
Driver to read cell size from SBCAM register and translate bytes to cell
units accordingly.
In order to fix the bug, this patch exposes SBCAM (Shared buffer
capabilities mask) layout and defines.
If SBCAM.cap_cell_size is valid, use it for all bytes to cells
calculations. If not valid, fallback to 128.
Cell size do not change on the fly per device. Instead of issuing SBCAM
access reg command every time such translation is needed, cache it in
mlx5e_dcbx as part of mlx5e_dcbnl_initialize(). Pass dcbx.port_buff_cell_sz
as a param to every function that needs bytes to cells translation.
While fixing the bug, move MLX5E_BUFFER_CELL_SHIFT macro to
en_dcbnl.c, as it is only used by that file.
Fixes: 0696d60853d5 ("net/mlx5e: Receive buffer configuration")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Some released FW versions mistakenly don't set the capability that 50G
per lane link-modes are supported for VFs (ptys_extended_ethernet
capability bit). When the capability is unset, read
PTYS.ext_eth_proto_capability (always reliable).
If PTYS.ext_eth_proto_capability is valid (has a non-zero value)
conclude that the HCA supports 50G per lane. Otherwise, conclude that
the HCA doesn't support 50G per lane.
Fixes: a08b4ed1373d ("net/mlx5: Add support to ext_* fields introduced in Port Type and Speed register")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
After function reload, CPU mapping used by aRFS RX is broken, leading to
a kernel panic. Fix by moving initialization of rx_cpu_rmap from
netdev_init to netdev_attach. IRQ table is re-allocated on mlx5_load,
but netdev is not re-initialize.
Trace of the panic:
[ 22.055672] general protection fault, probably for non-canonical address 0x785634120000ff1c: 0000 [#1] SMP PTI
[ 22.065010] CPU: 4 PID: 0 Comm: swapper/4 Not tainted 5.7.0-rc2-for-upstream-perf-2020-04-21_16-34-03-31 #1
[ 22.067967] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
[ 22.071174] RIP: 0010:get_rps_cpu+0x267/0x300
[ 22.075692] RSP: 0018:ffffc90000244d60 EFLAGS: 00010202
[ 22.076888] RAX: ffff888459b0e400 RBX: 0000000000000000 RCX:0000000000000007
[ 22.078364] RDX: 0000000000008884 RSI: ffff888467cb5b00 RDI:0000000000000000
[ 22.079815] RBP: 00000000ff342b27 R08: 0000000000000007 R09:0000000000000003
[ 22.081289] R10: ffffffffffffffff R11: 00000000000070cc R12:ffff888454900000
[ 22.082767] R13: ffffc90000e5a950 R14: ffffc90000244dc0 R15:0000000000000007
[ 22.084190] FS: 0000000000000000(0000) GS:ffff88846fc80000(0000)knlGS:0000000000000000
[ 22.086161] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 22.087427] CR2: ffffffffffffffff CR3: 0000000464426003 CR4:0000000000760ee0
[ 22.088888] DR0: 0000000000000000 DR1: 0000000000000000 DR2:0000000000000000
[ 22.090336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:0000000000000400
[ 22.091764] PKRU: 55555554
[ 22.092618] Call Trace:
[ 22.093442] <IRQ>
[ 22.094211] ? kvm_clock_get_cycles+0xd/0x10
[ 22.095272] netif_receive_skb_list_internal+0x258/0x2a0
[ 22.096460] gro_normal_list.part.137+0x19/0x40
[ 22.097547] napi_complete_done+0xc6/0x110
[ 22.098685] mlx5e_napi_poll+0x190/0x670 [mlx5_core]
[ 22.099859] net_rx_action+0x2a0/0x400
[ 22.100848] __do_softirq+0xd8/0x2a8
[ 22.101829] irq_exit+0xa5/0xb0
[ 22.102750] do_IRQ+0x52/0xd0
[ 22.103654] common_interrupt+0xf/0xf
[ 22.104641] </IRQ>
Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
When detaching netdev, remove vxlan port configuration using
udp_tunnel_drop_rx_info. During function reload, configuration will be
restored using udp_tunnel_get_rx_info. This ensures sync between
firmware and driver. Use udp_tunnel_get_rx_info even if its physical
interface is down.
Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
In mlx5e_configure_flower() flow pointer is protected by rcu read lock.
However, after cited commit the pointer is being used outside of rcu read
block. Extend the block to protect all pointer accesses.
Fixes: 553f9328385d ("net/mlx5e: Support tc block sharing for representors")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
In helper function is_flow_rule_duplicate_allowed() verify that rpviv
pointer is not NULL before dereferencing it. This can happen when device is
in NIC mode and leads to following crash:
[90444.046419] BUG: kernel NULL pointer dereference, address: 0000000000000000
[90444.048149] #PF: supervisor read access in kernel mode
[90444.049781] #PF: error_code(0x0000) - not-present page
[90444.051386] PGD 80000003d35a4067 P4D 80000003d35a4067 PUD 3d35a3067 PMD 0
[90444.053051] Oops: 0000 [#1] SMP PTI
[90444.054683] CPU: 16 PID: 31736 Comm: tc Not tainted 5.8.0-rc1+ #1157
[90444.056340] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[90444.058079] RIP: 0010:mlx5e_configure_flower+0x3aa/0x9b0 [mlx5_core]
[90444.059753] Code: 24 50 49 8b 95 08 02 00 00 48 b8 00 08 00 00 04 00 00 00 48 21 c2 48 39 c2 74 0a 41 f6 85 0d 02 00 00 20 74 16 48 8b 44 24 20 <48> 8b 00 66 83 78 20 ff 74 07 4d 89 aa e0 00 00 00 48 83 7d 28 00
[90444.063232] RSP: 0018:ffffabe9c61ff768 EFLAGS: 00010246
[90444.065014] RAX: 0000000000000000 RBX: ffff9b13c4c91e80 RCX: 00000000000093fa
[90444.066784] RDX: 0000000400000800 RSI: 0000000000000000 RDI: 000000000002d5e0
[90444.068533] RBP: ffff9b174d308468 R08: 0000000000000000 R09: ffff9b17d63003f0
[90444.070285] R10: ffff9b17ea288600 R11: 0000000000000000 R12: ffffabe9c61ff878
[90444.072032] R13: ffff9b174d300000 R14: ffffabe9c61ffbb8 R15: ffff9b174d300880
[90444.073760] FS: 00007f3c23775480(0000) GS:ffff9b13efc80000(0000) knlGS:0000000000000000
[90444.075492] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[90444.077266] CR2: 0000000000000000 CR3: 00000003e2a60002 CR4: 00000000001606e0
[90444.079024] Call Trace:
[90444.080753] tc_setup_cb_add+0xca/0x1e0
[90444.082415] fl_hw_replace_filter+0x15f/0x1f0 [cls_flower]
[90444.084119] fl_change+0xa59/0x13dc [cls_flower]
[90444.085772] ? wait_for_completion+0xa8/0xf0
[90444.087364] tc_new_tfilter+0x3f5/0xa60
[90444.088960] rtnetlink_rcv_msg+0xeb/0x360
[90444.090514] ? __d_lookup_done+0x76/0xe0
[90444.092034] ? proc_alloc_inode+0x16/0x70
[90444.093560] ? prep_new_page+0x8c/0xf0
[90444.095048] ? _cond_resched+0x15/0x30
[90444.096483] ? rtnl_calcit.isra.0+0x110/0x110
[90444.097907] netlink_rcv_skb+0x49/0x110
[90444.099289] netlink_unicast+0x191/0x230
[90444.100629] netlink_sendmsg+0x243/0x480
[90444.101984] sock_sendmsg+0x5e/0x60
[90444.103305] ____sys_sendmsg+0x1f3/0x260
[90444.104597] ? copy_msghdr_from_user+0x5c/0x90
[90444.105916] ? __mod_lruvec_state+0x3c/0xe0
[90444.107210] ___sys_sendmsg+0x81/0xc0
[90444.108484] ? do_filp_open+0xa5/0x100
[90444.109732] ? handle_mm_fault+0x117b/0x1e00
[90444.110970] ? __check_object_size+0x46/0x147
[90444.112205] ? __check_object_size+0x136/0x147
[90444.113402] __sys_sendmsg+0x59/0xa0
[90444.114587] do_syscall_64+0x4d/0x90
[90444.115782] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[90444.116953] RIP: 0033:0x7f3c2393b7b8
[90444.118101] Code: Bad RIP value.
[90444.119240] RSP: 002b:00007ffc6ad8e6c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[90444.120408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3c2393b7b8
[90444.121583] RDX: 0000000000000000 RSI: 00007ffc6ad8e740 RDI: 0000000000000003
[90444.122750] RBP: 000000005eea0c3a R08: 0000000000000001 R09: 00007ffc6ad8e68c
[90444.123928] R10: 0000000000404fa8 R11: 0000000000000246 R12: 0000000000000001
[90444.125073] R13: 0000000000000000 R14: 00007ffc6ad92a00 R15: 00000000004866a0
[90444.126221] Modules linked in: act_skbedit act_tunnel_key act_mirred bonding vxlan ip6_udp_tunnel udp_tunnel nfnetlink act_gact cls_flower sch_ingress openvswitch nsh nf_conncount nfsv3 nfs_acl nfs lockd grace fscache tun bridge stp llc sunrpc rdma_ucm rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core intel_r
apl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mlxfw kvm act_ct nf_flow_table nf_nat nf_conntrack irqbypass crct10dif_pclmul nf_defrag_ipv6 igb ipmi_ssif libcrc32c crc32_pclmul crc32c_intel ipmi_si nf_defrag_ipv4 ptp ghash_clmulni_intel mei_me ses iTCO_wdt i2c_i801 pps_core
ioatdma iTCO_vendor_support joydev mei enclosure intel_cstate i2c_smbus wmi dca ipmi_devintf intel_uncore lpc_ich ipmi_msghandler pcspkr acpi_pad acpi_power_meter ast i2c_algo_bit drm_vram_helper drm_kms_helper drm_ttm_helper ttm drm mpt3sas raid_class scsi_transport_sas
[90444.136253] CR2: 0000000000000000
[90444.137621] ---[ end trace 924af62aa2b151bd ]---
Fixes: 553f9328385d ("net/mlx5e: Support tc block sharing for representors")
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Refactoring eswitch ingress acl codes accidentally inserts extra
memset zero that removes vlan and/or qos setting in legacy mode.
Fixes: 07bab9502641 ("net/mlx5: E-Switch, Refactor eswitch ingress acl codes")
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Fix eeprom SFP query support by setting i2c_addr, offset and page number
correctly. Unlike QSFP modules, SFP eeprom params are as follow:
- i2c_addr is 0x50 for offset 0 - 255 and 0x51 for offset 256 - 511.
- Page number is always zero.
- Page offset is always relative to zero.
As part of eeprom query, query the module ID (SFP / QSFP*) via helper
function to set the params accordingly.
In addition, change mlx5_qsfp_eeprom_page() input type to be u16 to avoid
unnecessary casting.
Fixes: a708fb7b1f8d ("net/mlx5e: ethtool, Add support for EEPROM high pages query")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Pull drm fixes from Dave Airlie:
"I've been off most of the week, but some fixes have piled up. Seems a
bit busier than last week, but they are pretty spread out across a
bunch of drivers, none of them seem that big or worried me too much.
amdgpu:
- Fix a suspend/resume issue with PSP
- Backlight fix for Renoir
- Fix for gpu recovery debugging
radeon:
- Fix a double free in error path
i915:
- fbc fencing fix
- debugfs panic fix
- gem vma constuction fix
- gem pin under vm->nutex fix
nouveau:
- SVM fixes
- display fixes
meson:
- OSD burst length fixes
hibmc:
- runtime warning fix
mediatek:
- cmdq, mmsys fixes
- visibility check fixes"
* tag 'drm-fixes-2020-07-10' of git://anongit.freedesktop.org/drm/drm: (24 commits)
drm/amdgpu: don't do soft recovery if gpu_recovery=0
drm/radeon: fix double free
drm/amd/display: add dmcub check on RENOIR
drm/amdgpu: add TMR destory function for psp
drm/amdgpu: asd function needs to be unloaded in suspend phase
drm/hisilicon/hibmc: Move drm_fbdev_generic_setup() down to avoid the splat
drm/nouveau/nouveau: fix page fault on device private memory
drm/nouveau/svm: fix migrate page regression
drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout
drm/nouveau/kms/nv50-: bail from nv50_audio_disable() early if audio not enabled
drm/i915/gt: Pin the rings before marking active
drm/i915: Also drop vm.ref along error paths for vma construction
drm/i915: Drop vm.ref for duplicate vma on construction
drm/i915/fbc: Fix fence_y_offset handling
drm/i915: Skip stale object handle for debugfs per-file-stats
drm/mediatek: mtk_hdmi: Remove debug messages for function calls
drm/mediatek: mtk_mt8173_hdmi_phy: Remove unnused const variables
drm/mediatek: Delete not used of_device_get_match_data
drm/mediatek: Remove unnecessary conversion to bool
drm/meson: viu: fix setting the OSD burst length in VIU_OSD1_FIFO_CTRL_STAT
...
|
|
git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.8-2020-07-09:
amdgpu:
- Fix a suspend/resume issue with PSP
- Backlight fix for Renoir
- Fix for gpu recovery debugging
radeon:
- Fix a double free in error path
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200709185221.44895-1-alexander.deucher@amd.com
|
|
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
One display's fbc patch fixing fence_y_offset calculation
from Ville and 4 patches from Chris on GEM: 1 fixing a debugfs
panic and others fixing vma construction and pin under vm->mutex.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200708190654.GA3924867@intel.com
|
|
- SVM fixes
- display fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ <CACAvsv5i-dc0Onbk8FWzd-PTgXHHWi6jcE3O0hVx8+V5qEOeqg@mail.gmail.com
|
|
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
* meson: OSD burst-length fixes
* hibmc: fix runtime warning by setting up generic fbdev after
registering device
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200708121050.GA29420@linux-uq9g
|
|
https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-fixes
Mediatek DRM Fixes for Linux 5.8
This include fixup for cmdq, mmsys, visibility checking and some refinement.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200707153944.604-1-chunkuang.hu@kernel.org
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- A request-based DM fix to not use a waitqueue to wait for blk-mq IO
completion because doing so is racey.
- A couple more DM zoned target fixes to address issues introduced
during the 5.8 cycle.
- A DM core fix to use proper interface to cleanup DM's static flush
bio.
- A DM core fix to prevent mm recursion during memory allocation needed
by dm_kobject_uevent.
* tag 'for-5.8/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: use noio when sending kobject event
dm zoned: Fix zone reclaim trigger
dm zoned: fix unused but set variable warnings
dm writecache: reject asynchronous pmem devices
dm: use bio_uninit instead of bio_disassociate_blkg
dm: do not use waitqueue for request-based DM
|
|
NVM config file address will be modified when the MBI image is upgraded.
Driver would return stale config values if user reads the nvm-config
(via ethtool -d) in this state. The fix is to re-populate nvm attribute
info while reading the nvm config values/partition.
Changes from previous version:
-------------------------------
v3: Corrected the formatting in 'Fixes' tag.
v2: Added 'Fixes' tag.
Fixes: 1ac4329a1cff ("qed: Add configuration information to register dump and debug data")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
It's impossible to debug shader hangs with soft recovery.
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
|
|
clang static analysis flags this error
drivers/gpu/drm/radeon/ci_dpm.c:5652:9: warning: Use of memory after it is freed [unix.Malloc]
kfree(rdev->pm.dpm.ps[i].ps_priv);
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/radeon/ci_dpm.c:5654:2: warning: Attempt to free released memory [unix.Malloc]
kfree(rdev->pm.dpm.ps);
^~~~~~~~~~~~~~~~~~~~~~
problem is reported in ci_dpm_fini, with these code blocks.
for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
kfree(rdev->pm.dpm.ps[i].ps_priv);
}
kfree(rdev->pm.dpm.ps);
The first free happens in ci_parse_power_table where it cleans up locally
on a failure. ci_dpm_fini also does a cleanup.
ret = ci_parse_power_table(rdev);
if (ret) {
ci_dpm_fini(rdev);
return ret;
}
So remove the cleanup in ci_parse_power_table and
move the num_ps calculation to inside the loop so ci_dpm_fini
will know how many array elements to free.
Fixes: cc8dbbb4f62a ("drm/radeon: add dpm support for CI dGPUs (v2)")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
|
|
RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208277
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
|
|
TMR is required to be destoried with GFX_CMD_ID_DESTROY_TMR while the
system goes to suspend. Otherwise, PSP may return the failure state
(0xFFFF007) on Gfx-2-PSP command GFX_CMD_ID_SETUP_TMR after do multiple
times suspend/resume.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
|
|
Unload ASD function in suspend phase.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
|
|
When CONFIG_OF=n of_match_device() gets pre-processed out of existence
leaving qcom-smmu_client_of_match unused. Mark it as possibly unused to
keep the compiler from warning in that case.
Fixes: 0e764a01015d ("iommu/arm-smmu: Allow client devices to select direct mapping")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200604203905.31964-1-jcrouse@codeaurora.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
|
|
In pci_disable_sriov(), i.e.,
# echo 0 > /sys/class/net/enp11s0f1np1/device/sriov_numvfs
iommu_release_device
iommu_group_remove_device
arm_smmu_domain_free
kfree(smmu_domain)
Later,
iommu_release_device
arm_smmu_release_device
arm_smmu_detach_dev
spin_lock_irqsave(&smmu_domain->devices_lock,
would trigger an use-after-free. Fixed it by call
arm_smmu_release_device() first before iommu_group_remove_device().
BUG: KASAN: use-after-free in __lock_acquire+0x3458/0x4440
__lock_acquire at kernel/locking/lockdep.c:4250
Read of size 8 at addr ffff0089df1a6f68 by task bash/3356
CPU: 5 PID: 3356 Comm: bash Not tainted 5.8.0-rc3-next-20200630 #2
Hardware name: HPE Apollo 70 /C01_APACHE_MB , BIOS L50_5.13_1.11 06/18/2019
Call trace:
dump_backtrace+0x0/0x398
show_stack+0x14/0x20
dump_stack+0x140/0x1b8
print_address_description.isra.12+0x54/0x4a8
kasan_report+0x134/0x1b8
__asan_report_load8_noabort+0x2c/0x50
__lock_acquire+0x3458/0x4440
lock_acquire+0x204/0xf10
_raw_spin_lock_irqsave+0xf8/0x180
arm_smmu_detach_dev+0xd8/0x4a0
arm_smmu_detach_dev at drivers/iommu/arm-smmu-v3.c:2776
arm_smmu_release_device+0xb4/0x1c8
arm_smmu_disable_pasid at drivers/iommu/arm-smmu-v3.c:2754
(inlined by) arm_smmu_release_device at drivers/iommu/arm-smmu-v3.c:3000
iommu_release_device+0xc0/0x178
iommu_release_device at drivers/iommu/iommu.c:302
iommu_bus_notifier+0x118/0x160
notifier_call_chain+0xa4/0x128
__blocking_notifier_call_chain+0x70/0xa8
blocking_notifier_call_chain+0x14/0x20
device_del+0x618/0xa00
pci_remove_bus_device+0x108/0x2d8
pci_stop_and_remove_bus_device+0x1c/0x28
pci_iov_remove_virtfn+0x228/0x368
sriov_disable+0x8c/0x348
pci_disable_sriov+0x5c/0x70
mlx5_core_sriov_configure+0xd8/0x260 [mlx5_core]
sriov_numvfs_store+0x240/0x318
dev_attr_store+0x38/0x68
sysfs_kf_write+0xdc/0x128
kernfs_fop_write+0x23c/0x448
__vfs_write+0x54/0xe8
vfs_write+0x124/0x3f0
ksys_write+0xe8/0x1b8
__arm64_sys_write+0x68/0x98
do_el0_svc+0x124/0x220
el0_sync_handler+0x260/0x408
el0_sync+0x140/0x180
Allocated by task 3356:
save_stack+0x24/0x50
__kasan_kmalloc.isra.13+0xc4/0xe0
kasan_kmalloc+0xc/0x18
kmem_cache_alloc_trace+0x1ec/0x318
arm_smmu_domain_alloc+0x54/0x148
iommu_group_alloc_default_domain+0xc0/0x440
iommu_probe_device+0x1c0/0x308
iort_iommu_configure+0x434/0x518
acpi_dma_configure+0xf0/0x128
pci_dma_configure+0x114/0x160
really_probe+0x124/0x6d8
driver_probe_device+0xc4/0x180
__device_attach_driver+0x184/0x1e8
bus_for_each_drv+0x114/0x1a0
__device_attach+0x19c/0x2a8
device_attach+0x10/0x18
pci_bus_add_device+0x70/0xf8
pci_iov_add_virtfn+0x7b4/0xb40
sriov_enable+0x5c8/0xc30
pci_enable_sriov+0x64/0x80
mlx5_core_sriov_configure+0x58/0x260 [mlx5_core]
sriov_numvfs_store+0x1c0/0x318
dev_attr_store+0x38/0x68
sysfs_kf_write+0xdc/0x128
kernfs_fop_write+0x23c/0x448
__vfs_write+0x54/0xe8
vfs_write+0x124/0x3f0
ksys_write+0xe8/0x1b8
__arm64_sys_write+0x68/0x98
do_el0_svc+0x124/0x220
el0_sync_handler+0x260/0x408
el0_sync+0x140/0x180
Freed by task 3356:
save_stack+0x24/0x50
__kasan_slab_free+0x124/0x198
kasan_slab_free+0x10/0x18
slab_free_freelist_hook+0x110/0x298
kfree+0x128/0x668
arm_smmu_domain_free+0xf4/0x1a0
iommu_group_release+0xec/0x160
kobject_put+0xf4/0x238
kobject_del+0x110/0x190
kobject_put+0x1e4/0x238
iommu_group_remove_device+0x394/0x938
iommu_release_device+0x9c/0x178
iommu_release_device at drivers/iommu/iommu.c:300
iommu_bus_notifier+0x118/0x160
notifier_call_chain+0xa4/0x128
__blocking_notifier_call_chain+0x70/0xa8
blocking_notifier_call_chain+0x14/0x20
device_del+0x618/0xa00
pci_remove_bus_device+0x108/0x2d8
pci_stop_and_remove_bus_device+0x1c/0x28
pci_iov_remove_virtfn+0x228/0x368
sriov_disable+0x8c/0x348
pci_disable_sriov+0x5c/0x70
mlx5_core_sriov_configure+0xd8/0x260 [mlx5_core]
sriov_numvfs_store+0x240/0x318
dev_attr_store+0x38/0x68
sysfs_kf_write+0xdc/0x128
kernfs_fop_write+0x23c/0x448
__vfs_write+0x54/0xe8
vfs_write+0x124/0x3f0
ksys_write+0xe8/0x1b8
__arm64_sys_write+0x68/0x98
do_el0_svc+0x124/0x220
el0_sync_handler+0x260/0x408
el0_sync+0x140/0x180
The buggy address belongs to the object at ffff0089df1a6e00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 360 bytes inside of
512-byte region [ffff0089df1a6e00, ffff0089df1a7000)
The buggy address belongs to the page:
page:ffffffe02257c680 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0089df1a1400
flags: 0x7ffff800000200(slab)
raw: 007ffff800000200 ffffffe02246b8c8 ffffffe02257ff88 ffff000000320680
raw: ffff0089df1a1400 00000000002a000e 00000001ffffffff ffff0089df1a5001
page dumped because: kasan: bad access detected
page->mem_cgroup:ffff0089df1a5001
Memory state around the buggy address:
ffff0089df1a6e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff0089df1a6e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff0089df1a6f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff0089df1a6f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff0089df1a7000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
Fixes: a6a4c7e2c5b8 ("iommu: Add probe_device() and release_device() call-backs")
Signed-off-by: Qian Cai <cai@lca.pw>
Link: https://lore.kernel.org/r/20200704001003.2303-1-cai@lca.pw
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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As of commit 8c0637e950d6 ("keys: Make the KEY_NEED_* perms an enum rather
than a mask") lookup_user_key() needs an explicit declaration of what it
wants to do with the key. Add KEY_NEED_SEARCH to fix a warning with the
below signature, and fixes the inability to retrieve a key.
WARNING: CPU: 15 PID: 6276 at security/keys/permission.c:35 key_task_permission+0xd3/0x140
[..]
RIP: 0010:key_task_permission+0xd3/0x140
[..]
Call Trace:
lookup_user_key+0xeb/0x6b0
? vsscanf+0x3df/0x840
? key_validate+0x50/0x50
? key_default_cmp+0x20/0x20
nvdimm_get_user_key_payload.part.0+0x21/0x110 [libnvdimm]
nvdimm_security_store+0x67d/0xb20 [libnvdimm]
security_store+0x67/0x1a0 [libnvdimm]
kernfs_fop_write+0xcf/0x1c0
vfs_write+0xde/0x1d0
ksys_write+0x68/0xe0
do_syscall_64+0x5c/0xa0
entry_SYSCALL_64_after_hwframe+0x49/0xb3
Fixes: 8c0637e950d6 ("keys: Make the KEY_NEED_* perms an enum rather than a mask")
Suggested-by: David Howells <dhowells@redhat.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/159297332630.1304143.237026690015653759.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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|
ib_pd is accessed internally during destroy of the TIR/TIS, but PD
can be not set yet. This leading to the following kernel panic.
BUG: kernel NULL pointer dereference, address: 0000000000000074
PGD 8000000079eaa067 P4D 8000000079eaa067 PUD 7ae81067 PMD 0 Oops: 0000 [#1] SMP PTI
CPU: 1 PID: 709 Comm: syz-executor.0 Not tainted 5.8.0-rc3 #41 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
RIP: 0010:destroy_raw_packet_qp_tis drivers/infiniband/hw/mlx5/qp.c:1189 [inline]
RIP: 0010:destroy_raw_packet_qp drivers/infiniband/hw/mlx5/qp.c:1527 [inline]
RIP: 0010:destroy_qp_common+0x2ca/0x4f0 drivers/infiniband/hw/mlx5/qp.c:2397
Code: 00 85 c0 74 2e e8 56 18 55 ff 48 8d b3 28 01 00 00 48 89 ef e8 d7 d3 ff ff 48 8b 43 08 8b b3 c0 01 00 00 48 8b bd a8 0a 00 00 <0f> b7 50 74 e8 0d 6a fe ff e8 28 18 55 ff 49 8d 55 50 4c 89 f1 48
RSP: 0018:ffffc900007bbac8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807949e800 RCX: 0000000000000998
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88807c180140
RBP: ffff88807b50c000 R08: 000000000002d379 R09: ffffc900007bba00
R10: 0000000000000001 R11: 000000000002d358 R12: ffff888076f37000
R13: ffff88807949e9c8 R14: ffffc900007bbe08 R15: ffff888076f37000
FS: 00000000019bf940(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000074 CR3: 0000000076d68004 CR4: 0000000000360ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mlx5_ib_create_qp+0xf36/0xf90 drivers/infiniband/hw/mlx5/qp.c:3014
_ib_create_qp drivers/infiniband/core/core_priv.h:333 [inline]
create_qp+0x57f/0xd20 drivers/infiniband/core/uverbs_cmd.c:1443
ib_uverbs_create_qp+0xcf/0x100 drivers/infiniband/core/uverbs_cmd.c:1564
ib_uverbs_write+0x5fa/0x780 drivers/infiniband/core/uverbs_main.c:664
__vfs_write+0x3f/0x90 fs/read_write.c:495
vfs_write+0xc7/0x1f0 fs/read_write.c:559
ksys_write+0x5e/0x110 fs/read_write.c:612
do_syscall_64+0x3e/0x70 arch/x86/entry/common.c:359
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466479
Code: Bad RIP value.
RSP: 002b:00007ffd057b62b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000466479
RDX: 0000000000000070 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 00000000019bf8fc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000bf6 R14: 00000000004cb859 R15: 00000000006fefc0
Fixes: 6c41965d647a ("RDMA/mlx5: Don't access ib_qp fields in internal destroy QP path")
Link: https://lore.kernel.org/r/20200707110612.882962-4-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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|
Some released FW versions mistakenly don't set the capability that 50G per
lane link-modes are supported for VFs (ptys_extended_ethernet capability
bit).
Use PTYS.ext_eth_proto_capability instead, as this indication is always
accurate. If PTYS.ext_eth_proto_capability is valid
(has a non-zero value) conclude that the HCA supports 50G per lane.
Otherwise, conclude that the HCA doesn't support 50G per lane.
Fixes: 08e8676f1607 ("IB/mlx5: Add support for 50Gbps per lane link modes")
Link: https://lore.kernel.org/r/20200707110612.882962-3-leon@kernel.org
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Convert all-mask IP address to Big Endian, instead, for comparison.
Fixes: f286dd8eaad5 ("cxgb4: use correct type for all-mask IP address comparison")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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When adding first socket to nbd, if nsock's allocation failed, the data
structure member "config->socks" was reallocated, but the data structure
member "config->num_connections" was not updated. A memory leak will occur
then because the function "nbd_config_put" will free "config->socks" only
when "config->num_connections" is not zero.
Fixes: 03bf73c315ed ("nbd: prevent memory leak")
Reported-by: syzbot+934037347002901b8d2a@syzkaller.appspotmail.com
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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ARM64_WORKAROUND_1418040
ARM64_WORKAROUND_1418040 requires that AArch32 EL0 accesses to
the virtual counter register are trapped and emulated by the kernel.
This makes the vdso pretty pointless, and in some cases livelock
prone.
Provide a workaround entry that limits the vdso to 64bit tasks.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200706163802.1836732-4-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
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