| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()
When running chunk-sized reads on disks with badblocks duplicate bio
free/puts are observed:
=============================================================================
BUG bio-200 (Not tainted): Object already free
-----------------------------------------------------------------------------
Allocated in mempool_alloc_slab+0x17/0x20 age=3 cpu=2 pid=7504
__slab_alloc.constprop.0+0x5a/0xb0
kmem_cache_alloc+0x31e/0x330
mempool_alloc_slab+0x17/0x20
mempool_alloc+0x100/0x2b0
bio_alloc_bioset+0x181/0x460
do_mpage_readpage+0x776/0xd00
mpage_readahead+0x166/0x320
blkdev_readahead+0x15/0x20
read_pages+0x13f/0x5f0
page_cache_ra_unbounded+0x18d/0x220
force_page_cache_ra+0x181/0x1c0
page_cache_sync_ra+0x65/0xb0
filemap_get_pages+0x1df/0xaf0
filemap_read+0x1e1/0x700
blkdev_read_iter+0x1e5/0x330
vfs_read+0x42a/0x570
Freed in mempool_free_slab+0x17/0x20 age=3 cpu=2 pid=7504
kmem_cache_free+0x46d/0x490
mempool_free_slab+0x17/0x20
mempool_free+0x66/0x190
bio_free+0x78/0x90
bio_put+0x100/0x1a0
raid5_make_request+0x2259/0x2450
md_handle_request+0x402/0x600
md_submit_bio+0xd9/0x120
__submit_bio+0x11f/0x1b0
submit_bio_noacct_nocheck+0x204/0x480
submit_bio_noacct+0x32e/0xc70
submit_bio+0x98/0x1a0
mpage_readahead+0x250/0x320
blkdev_readahead+0x15/0x20
read_pages+0x13f/0x5f0
page_cache_ra_unbounded+0x18d/0x220
Slab 0xffffea000481b600 objects=21 used=0 fp=0xffff8881206d8940 flags=0x17ffffc0010201(locked|slab|head|node=0|zone=2|lastcpupid=0x1fffff)
CPU: 0 PID: 34525 Comm: kworker/u24:2 Not tainted 6.0.0-rc2-localyes-265166-gf11c5343fa3f #143
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014
Workqueue: raid5wq raid5_do_work
Call Trace:
<TASK>
dump_stack_lvl+0x5a/0x78
dump_stack+0x10/0x16
print_trailer+0x158/0x165
object_err+0x35/0x50
free_debug_processing.cold+0xb7/0xbe
__slab_free+0x1ae/0x330
kmem_cache_free+0x46d/0x490
mempool_free_slab+0x17/0x20
mempool_free+0x66/0x190
bio_free+0x78/0x90
bio_put+0x100/0x1a0
mpage_end_io+0x36/0x150
bio_endio+0x2fd/0x360
md_end_io_acct+0x7e/0x90
bio_endio+0x2fd/0x360
handle_failed_stripe+0x960/0xb80
handle_stripe+0x1348/0x3760
handle_active_stripes.constprop.0+0x72a/0xaf0
raid5_do_work+0x177/0x330
process_one_work+0x616/0xb20
worker_thread+0x2bd/0x6f0
kthread+0x179/0x1b0
ret_from_fork+0x22/0x30
</TASK>
The double free is caused by an unnecessary bio_put() in the
if(is_badblock(...)) error path in raid5_read_one_chunk().
The error path was moved ahead of bio_alloc_clone() in c82aa1b76787c
("md/raid5: move checking badblock before clone bio in
raid5_read_one_chunk"). The previous code checked and freed align_bio
which required a bio_put. After the move that is no longer needed as
raid_bio is returned to the control of the common io path which
performs its own endio resulting in a double free on bad device blocks. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure
In case mipi_dsi_attach() fails, call drm_panel_remove() to
avoid memory leak. |
| In the Linux kernel, the following vulnerability has been resolved:
can: j1939: prevent deadlock by moving j1939_sk_errqueue()
This commit addresses a deadlock situation that can occur in certain
scenarios, such as when running data TP/ETP transfer and subscribing to
the error queue while receiving a net down event. The deadlock involves
locks in the following order:
3
j1939_session_list_lock -> active_session_list_lock
j1939_session_activate
...
j1939_sk_queue_activate_next -> sk_session_queue_lock
...
j1939_xtp_rx_eoma_one
2
j1939_sk_queue_drop_all -> sk_session_queue_lock
...
j1939_sk_netdev_event_netdown -> j1939_socks_lock
j1939_netdev_notify
1
j1939_sk_errqueue -> j1939_socks_lock
__j1939_session_cancel -> active_session_list_lock
j1939_tp_rxtimer
CPU0 CPU1
---- ----
lock(&priv->active_session_list_lock);
lock(&jsk->sk_session_queue_lock);
lock(&priv->active_session_list_lock);
lock(&priv->j1939_socks_lock);
The solution implemented in this commit is to move the
j1939_sk_errqueue() call out of the active_session_list_lock context,
thus preventing the deadlock situation. |
| In the Linux kernel, the following vulnerability has been resolved:
arm64/pageattr: Propagate return value from __change_memory_common
The rodata=on security measure requires that any code path which does
vmalloc -> set_memory_ro/set_memory_rox must protect the linear map alias
too. Therefore, if such a call fails, we must abort set_memory_* and caller
must take appropriate action; currently we are suppressing the error, and
there is a real chance of such an error arising post commit a166563e7ec3
("arm64: mm: support large block mapping when rodata=full"). Therefore,
propagate any error to the caller. |
| In the Linux kernel, the following vulnerability has been resolved:
net: core: remove unnecessary frame_sz check in bpf_xdp_adjust_tail()
Syzkaller reported the following issue:
=======================================
Too BIG xdp->frame_sz = 131072
WARNING: CPU: 0 PID: 5020 at net/core/filter.c:4121
____bpf_xdp_adjust_tail net/core/filter.c:4121 [inline]
WARNING: CPU: 0 PID: 5020 at net/core/filter.c:4121
bpf_xdp_adjust_tail+0x466/0xa10 net/core/filter.c:4103
...
Call Trace:
<TASK>
bpf_prog_4add87e5301a4105+0x1a/0x1c
__bpf_prog_run include/linux/filter.h:600 [inline]
bpf_prog_run_xdp include/linux/filter.h:775 [inline]
bpf_prog_run_generic_xdp+0x57e/0x11e0 net/core/dev.c:4721
netif_receive_generic_xdp net/core/dev.c:4807 [inline]
do_xdp_generic+0x35c/0x770 net/core/dev.c:4866
tun_get_user+0x2340/0x3ca0 drivers/net/tun.c:1919
tun_chr_write_iter+0xe8/0x210 drivers/net/tun.c:2043
call_write_iter include/linux/fs.h:1871 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x650/0xe40 fs/read_write.c:584
ksys_write+0x12f/0x250 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
xdp->frame_sz > PAGE_SIZE check was introduced in commit c8741e2bfe87
("xdp: Allow bpf_xdp_adjust_tail() to grow packet size"). But Jesper
Dangaard Brouer <jbrouer@redhat.com> noted that after introducing the
xdp_init_buff() which all XDP driver use - it's safe to remove this
check. The original intend was to catch cases where XDP drivers have
not been updated to use xdp.frame_sz, but that is not longer a concern
(since xdp_init_buff).
Running the initial syzkaller repro it was discovered that the
contiguous physical memory allocation is used for both xdp paths in
tun_get_user(), e.g. tun_build_skb() and tun_alloc_skb(). It was also
stated by Jesper Dangaard Brouer <jbrouer@redhat.com> that XDP can
work on higher order pages, as long as this is contiguous physical
memory (e.g. a page). |
| In the Linux kernel, the following vulnerability has been resolved:
x86/kexec: Fix double-free of elf header buffer
After
b3e34a47f989 ("x86/kexec: fix memory leak of elf header buffer"),
freeing image->elf_headers in the error path of crash_load_segments()
is not needed because kimage_file_post_load_cleanup() will take
care of that later. And not clearing it could result in a double-free.
Drop the superfluous vfree() call at the error path of
crash_load_segments(). |
| In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Fix kernel warning during topology setup
This patch fixes the following kernel warning seen during
driver load by correctly initializing the p2plink attr before
creating the sysfs file:
[ +0.002865] ------------[ cut here ]------------
[ +0.002327] kobject: '(null)' (0000000056260cfb): is not initialized, yet kobject_put() is being called.
[ +0.004780] WARNING: CPU: 32 PID: 1006 at lib/kobject.c:718 kobject_put+0xaa/0x1c0
[ +0.001361] Call Trace:
[ +0.001234] <TASK>
[ +0.001067] kfd_remove_sysfs_node_entry+0x24a/0x2d0 [amdgpu]
[ +0.003147] kfd_topology_update_sysfs+0x3d/0x750 [amdgpu]
[ +0.002890] kfd_topology_add_device+0xbd7/0xc70 [amdgpu]
[ +0.002844] ? lock_release+0x13c/0x2e0
[ +0.001936] ? smu_cmn_send_smc_msg_with_param+0x1e8/0x2d0 [amdgpu]
[ +0.003313] ? amdgpu_dpm_get_mclk+0x54/0x60 [amdgpu]
[ +0.002703] kgd2kfd_device_init.cold+0x39f/0x4ed [amdgpu]
[ +0.002930] amdgpu_amdkfd_device_init+0x13d/0x1f0 [amdgpu]
[ +0.002944] amdgpu_device_init.cold+0x1464/0x17b4 [amdgpu]
[ +0.002970] ? pci_bus_read_config_word+0x43/0x80
[ +0.002380] amdgpu_driver_load_kms+0x15/0x100 [amdgpu]
[ +0.002744] amdgpu_pci_probe+0x147/0x370 [amdgpu]
[ +0.002522] local_pci_probe+0x40/0x80
[ +0.001896] work_for_cpu_fn+0x10/0x20
[ +0.001892] process_one_work+0x26e/0x5a0
[ +0.002029] worker_thread+0x1fd/0x3e0
[ +0.001890] ? process_one_work+0x5a0/0x5a0
[ +0.002115] kthread+0xea/0x110
[ +0.001618] ? kthread_complete_and_exit+0x20/0x20
[ +0.002422] ret_from_fork+0x1f/0x30
[ +0.001808] </TASK>
[ +0.001103] irq event stamp: 59837
[ +0.001718] hardirqs last enabled at (59849): [<ffffffffb30fab12>] __up_console_sem+0x52/0x60
[ +0.004414] hardirqs last disabled at (59860): [<ffffffffb30faaf7>] __up_console_sem+0x37/0x60
[ +0.004414] softirqs last enabled at (59654): [<ffffffffb307d9c7>] irq_exit_rcu+0xd7/0x130
[ +0.004205] softirqs last disabled at (59649): [<ffffffffb307d9c7>] irq_exit_rcu+0xd7/0x130
[ +0.004203] ---[ end trace 0000000000000000 ]--- |
| In the Linux kernel, the following vulnerability has been resolved:
media: mediatek: vcodec: fix resource leaks in vdec_msg_queue_init()
If we encounter any error in the vdec_msg_queue_init() then we need
to set "msg_queue->wdma_addr.size = 0;". Normally, this is done
inside the vdec_msg_queue_deinit() function. However, if the
first call to allocate &msg_queue->wdma_addr fails, then the
vdec_msg_queue_deinit() function is a no-op. For that situation, just
set the size to zero explicitly and return.
There were two other error paths which did not clean up before returning.
Change those error paths to goto mem_alloc_err. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: Add missing hw_ops->get_ring_selector() for IPQ5018
During sending data after clients connected, hw_ops->get_ring_selector()
will be called. But for IPQ5018, this member isn't set, and the
following NULL pointer exception will be occurred:
[ 38.840478] 8<--- cut here ---
[ 38.840517] Unable to handle kernel NULL pointer dereference at virtual address 00000000
...
[ 38.923161] PC is at 0x0
[ 38.927930] LR is at ath11k_dp_tx+0x70/0x730 [ath11k]
...
[ 39.063264] Process hostapd (pid: 1034, stack limit = 0x801ceb3d)
[ 39.068994] Stack: (0x856a9a68 to 0x856aa000)
...
[ 39.438467] [<7f323804>] (ath11k_dp_tx [ath11k]) from [<7f314e6c>] (ath11k_mac_op_tx+0x80/0x190 [ath11k])
[ 39.446607] [<7f314e6c>] (ath11k_mac_op_tx [ath11k]) from [<7f17dbe0>] (ieee80211_handle_wake_tx_queue+0x7c/0xc0 [mac80211])
[ 39.456162] [<7f17dbe0>] (ieee80211_handle_wake_tx_queue [mac80211]) from [<7f174450>] (ieee80211_probereq_get+0x584/0x704 [mac80211])
[ 39.467443] [<7f174450>] (ieee80211_probereq_get [mac80211]) from [<7f178c40>] (ieee80211_tx_prepare_skb+0x1f8/0x248 [mac80211])
[ 39.479334] [<7f178c40>] (ieee80211_tx_prepare_skb [mac80211]) from [<7f179e28>] (__ieee80211_subif_start_xmit+0x32c/0x3d4 [mac80211])
[ 39.491053] [<7f179e28>] (__ieee80211_subif_start_xmit [mac80211]) from [<7f17af08>] (ieee80211_tx_control_port+0x19c/0x288 [mac80211])
[ 39.502946] [<7f17af08>] (ieee80211_tx_control_port [mac80211]) from [<7f0fc704>] (nl80211_tx_control_port+0x174/0x1d4 [cfg80211])
[ 39.515017] [<7f0fc704>] (nl80211_tx_control_port [cfg80211]) from [<808ceac4>] (genl_rcv_msg+0x154/0x340)
[ 39.526814] [<808ceac4>] (genl_rcv_msg) from [<808cdb74>] (netlink_rcv_skb+0xb8/0x11c)
[ 39.536446] [<808cdb74>] (netlink_rcv_skb) from [<808ce1d0>] (genl_rcv+0x28/0x34)
[ 39.544344] [<808ce1d0>] (genl_rcv) from [<808cd234>] (netlink_unicast+0x174/0x274)
[ 39.551895] [<808cd234>] (netlink_unicast) from [<808cd510>] (netlink_sendmsg+0x1dc/0x440)
[ 39.559362] [<808cd510>] (netlink_sendmsg) from [<808596e0>] (____sys_sendmsg+0x1a8/0x1fc)
[ 39.567697] [<808596e0>] (____sys_sendmsg) from [<8085b1a8>] (___sys_sendmsg+0xa4/0xdc)
[ 39.575941] [<8085b1a8>] (___sys_sendmsg) from [<8085b310>] (sys_sendmsg+0x44/0x74)
[ 39.583841] [<8085b310>] (sys_sendmsg) from [<80300060>] (ret_fast_syscall+0x0/0x40)
...
[ 39.620734] Code: bad PC value
[ 39.625869] ---[ end trace 8aef983ad3cbc032 ]--- |
| In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
A syzbot stress test using a corrupted disk image reported that
mark_buffer_dirty() called from __nilfs_mark_inode_dirty() or
nilfs_palloc_commit_alloc_entry() may output a kernel warning, and can
panic if the kernel is booted with panic_on_warn.
This is because nilfs2 keeps buffer pointers in local structures for some
metadata and reuses them, but such buffers may be forcibly discarded by
nilfs_clear_dirty_page() in some critical situations.
This issue is reported to appear after commit 28a65b49eb53 ("nilfs2: do
not write dirty data after degenerating to read-only"), but the issue has
potentially existed before.
Fix this issue by checking the uptodate flag when attempting to reuse an
internally held buffer, and reloading the metadata instead of reusing the
buffer if the flag was lost. |
| In the Linux kernel, the following vulnerability has been resolved:
vfio/type1: fix cap_migration information leak
Fix an information leak where an uninitialized hole in struct
vfio_iommu_type1_info_cap_migration on the stack is exposed to userspace.
The definition of struct vfio_iommu_type1_info_cap_migration contains a hole as
shown in this pahole(1) output:
struct vfio_iommu_type1_info_cap_migration {
struct vfio_info_cap_header header; /* 0 8 */
__u32 flags; /* 8 4 */
/* XXX 4 bytes hole, try to pack */
__u64 pgsize_bitmap; /* 16 8 */
__u64 max_dirty_bitmap_size; /* 24 8 */
/* size: 32, cachelines: 1, members: 4 */
/* sum members: 28, holes: 1, sum holes: 4 */
/* last cacheline: 32 bytes */
};
The cap_mig variable is filled in without initializing the hole:
static int vfio_iommu_migration_build_caps(struct vfio_iommu *iommu,
struct vfio_info_cap *caps)
{
struct vfio_iommu_type1_info_cap_migration cap_mig;
cap_mig.header.id = VFIO_IOMMU_TYPE1_INFO_CAP_MIGRATION;
cap_mig.header.version = 1;
cap_mig.flags = 0;
/* support minimum pgsize */
cap_mig.pgsize_bitmap = (size_t)1 << __ffs(iommu->pgsize_bitmap);
cap_mig.max_dirty_bitmap_size = DIRTY_BITMAP_SIZE_MAX;
return vfio_info_add_capability(caps, &cap_mig.header, sizeof(cap_mig));
}
The structure is then copied to a temporary location on the heap. At this point
it's already too late and ioctl(VFIO_IOMMU_GET_INFO) copies it to userspace
later:
int vfio_info_add_capability(struct vfio_info_cap *caps,
struct vfio_info_cap_header *cap, size_t size)
{
struct vfio_info_cap_header *header;
header = vfio_info_cap_add(caps, size, cap->id, cap->version);
if (IS_ERR(header))
return PTR_ERR(header);
memcpy(header + 1, cap + 1, size - sizeof(*header));
return 0;
}
This issue was found by code inspection. |
| In the Linux kernel, the following vulnerability has been resolved:
media: platform: mtk-mdp3: Add missing check and free for ida_alloc
Add the check for the return value of the ida_alloc in order to avoid
NULL pointer dereference.
Moreover, free allocated "ctx->id" if mdp_m2m_open fails later in order
to avoid memory leak. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7996: fix null pointer deref in mt7996_conf_tx()
If a link does not have an assigned channel yet, mt7996_vif_link returns
NULL. We still need to store the updated queue settings in that case, and
apply them later.
Move the location of the queue params to within struct mt7996_vif_link. |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Clear cmds after chip reset
Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling
and host reset handling") caused two problems:
1. Commands sent to FW, after chip reset got stuck and never freed as FW
is not going to respond to them anymore.
2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a
("scsi: qla2xxx: Fix missed DMA unmap for aborted commands")
attempted to fix this, but introduced another bug under different
circumstances when two different CPUs were racing to call
qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in
dma_unmap_sg_attrs().
So revert "scsi: qla2xxx: Fix missed DMA unmap for aborted commands" and
partially revert "scsi: qla2xxx: target: Fix offline port handling and
host reset handling" at __qla2x00_abort_all_cmds. |
| In the Linux kernel, the following vulnerability has been resolved:
mshv: Fix create memory region overlap check
The current check is incorrect; it only checks if the beginning or end
of a region is within an existing region. This doesn't account for
userspace specifying a region that begins before and ends after an
existing region.
Change the logic to a range intersection check against gfns and uaddrs
for each region.
Remove mshv_partition_region_by_uaddr() as it is no longer used. |
| In the Linux kernel, the following vulnerability has been resolved:
PM / devfreq: hisi: Fix potential UAF in OPP handling
Ensure all required data is acquired before calling dev_pm_opp_put(opp)
to maintain correct resource acquisition and release order. |
| In the Linux kernel, the following vulnerability has been resolved:
landlock: Fix handling of disconnected directories
Disconnected files or directories can appear when they are visible and
opened from a bind mount, but have been renamed or moved from the source
of the bind mount in a way that makes them inaccessible from the mount
point (i.e. out of scope).
Previously, access rights tied to files or directories opened through a
disconnected directory were collected by walking the related hierarchy
down to the root of the filesystem, without taking into account the
mount point because it couldn't be found. This could lead to
inconsistent access results, potential access right widening, and
hard-to-debug renames, especially since such paths cannot be printed.
For a sandboxed task to create a disconnected directory, it needs to
have write access (i.e. FS_MAKE_REG, FS_REMOVE_FILE, and FS_REFER) to
the underlying source of the bind mount, and read access to the related
mount point. Because a sandboxed task cannot acquire more access
rights than those defined by its Landlock domain, this could lead to
inconsistent access rights due to missing permissions that should be
inherited from the mount point hierarchy, while inheriting permissions
from the filesystem hierarchy hidden by this mount point instead.
Landlock now handles files and directories opened from disconnected
directories by taking into account the filesystem hierarchy when the
mount point is not found in the hierarchy walk, and also always taking
into account the mount point from which these disconnected directories
were opened. This ensures that a rename is not allowed if it would
widen access rights [1].
The rationale is that, even if disconnected hierarchies might not be
visible or accessible to a sandboxed task, relying on the collected
access rights from them improves the guarantee that access rights will
not be widened during a rename because of the access right comparison
between the source and the destination (see LANDLOCK_ACCESS_FS_REFER).
It may look like this would grant more access on disconnected files and
directories, but the security policies are always enforced for all the
evaluated hierarchies. This new behavior should be less surprising to
users and safer from an access control perspective.
Remove a wrong WARN_ON_ONCE() canary in collect_domain_accesses() and
fix the related comment.
Because opened files have their access rights stored in the related file
security properties, there is no impact for disconnected or unlinked
files. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/panthor: Prevent potential UAF in group creation
This commit prevents the possibility of a use after free issue in the
GROUP_CREATE ioctl function, which arose as pointer to the group is
accessed in that ioctl function after storing it in the Xarray.
A malicious userspace can second guess the handle of a group and try
to call GROUP_DESTROY ioctl from another thread around the same time
as GROUP_CREATE ioctl.
To prevent the use after free exploit, this commit uses a mark on an
entry of group pool Xarray which is added just before returning from
the GROUP_CREATE ioctl function. The mark is checked for all ioctls
that specify the group handle and so userspace won't be abe to delete
a group that isn't marked yet.
v2: Add R-bs and fixes tags |
| In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Move representor neigh cleanup to profile cleanup_tx
For IP tunnel encapsulation in ECMP (Equal-Cost Multipath) mode, as
the flow is duplicated to the peer eswitch, the related neighbour
information on the peer uplink representor is created as well.
In the cited commit, eswitch devcom unpair is moved to uplink unload
API, specifically the profile->cleanup_tx. If there is a encap rule
offloaded in ECMP mode, when one eswitch does unpair (because of
unloading the driver, for instance), and the peer rule from the peer
eswitch is going to be deleted, the use-after-free error is triggered
while accessing neigh info, as it is already cleaned up in uplink's
profile->disable, which is before its profile->cleanup_tx.
To fix this issue, move the neigh cleanup to profile's cleanup_tx
callback, and after mlx5e_cleanup_uplink_rep_tx is called. The neigh
init is moved to init_tx for symmeter.
[ 2453.376299] BUG: KASAN: slab-use-after-free in mlx5e_rep_neigh_entry_release+0x109/0x3a0 [mlx5_core]
[ 2453.379125] Read of size 4 at addr ffff888127af9008 by task modprobe/2496
[ 2453.381542] CPU: 7 PID: 2496 Comm: modprobe Tainted: G B 6.4.0-rc7+ #15
[ 2453.383386] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 2453.384335] Call Trace:
[ 2453.384625] <TASK>
[ 2453.384891] dump_stack_lvl+0x33/0x50
[ 2453.385285] print_report+0xc2/0x610
[ 2453.385667] ? __virt_addr_valid+0xb1/0x130
[ 2453.386091] ? mlx5e_rep_neigh_entry_release+0x109/0x3a0 [mlx5_core]
[ 2453.386757] kasan_report+0xae/0xe0
[ 2453.387123] ? mlx5e_rep_neigh_entry_release+0x109/0x3a0 [mlx5_core]
[ 2453.387798] mlx5e_rep_neigh_entry_release+0x109/0x3a0 [mlx5_core]
[ 2453.388465] mlx5e_rep_encap_entry_detach+0xa6/0xe0 [mlx5_core]
[ 2453.389111] mlx5e_encap_dealloc+0xa7/0x100 [mlx5_core]
[ 2453.389706] mlx5e_tc_tun_encap_dests_unset+0x61/0xb0 [mlx5_core]
[ 2453.390361] mlx5_free_flow_attr_actions+0x11e/0x340 [mlx5_core]
[ 2453.391015] ? complete_all+0x43/0xd0
[ 2453.391398] ? free_flow_post_acts+0x38/0x120 [mlx5_core]
[ 2453.392004] mlx5e_tc_del_fdb_flow+0x4ae/0x690 [mlx5_core]
[ 2453.392618] mlx5e_tc_del_fdb_peers_flow+0x308/0x370 [mlx5_core]
[ 2453.393276] mlx5e_tc_clean_fdb_peer_flows+0xf5/0x140 [mlx5_core]
[ 2453.393925] mlx5_esw_offloads_unpair+0x86/0x540 [mlx5_core]
[ 2453.394546] ? mlx5_esw_offloads_set_ns_peer.isra.0+0x180/0x180 [mlx5_core]
[ 2453.395268] ? down_write+0xaa/0x100
[ 2453.395652] mlx5_esw_offloads_devcom_event+0x203/0x530 [mlx5_core]
[ 2453.396317] mlx5_devcom_send_event+0xbb/0x190 [mlx5_core]
[ 2453.396917] mlx5_esw_offloads_devcom_cleanup+0xb0/0xd0 [mlx5_core]
[ 2453.397582] mlx5e_tc_esw_cleanup+0x42/0x120 [mlx5_core]
[ 2453.398182] mlx5e_rep_tc_cleanup+0x15/0x30 [mlx5_core]
[ 2453.398768] mlx5e_cleanup_rep_tx+0x6c/0x80 [mlx5_core]
[ 2453.399367] mlx5e_detach_netdev+0xee/0x120 [mlx5_core]
[ 2453.399957] mlx5e_netdev_change_profile+0x84/0x170 [mlx5_core]
[ 2453.400598] mlx5e_vport_rep_unload+0xe0/0xf0 [mlx5_core]
[ 2453.403781] mlx5_eswitch_unregister_vport_reps+0x15e/0x190 [mlx5_core]
[ 2453.404479] ? mlx5_eswitch_register_vport_reps+0x200/0x200 [mlx5_core]
[ 2453.405170] ? up_write+0x39/0x60
[ 2453.405529] ? kernfs_remove_by_name_ns+0xb7/0xe0
[ 2453.405985] auxiliary_bus_remove+0x2e/0x40
[ 2453.406405] device_release_driver_internal+0x243/0x2d0
[ 2453.406900] ? kobject_put+0x42/0x2d0
[ 2453.407284] bus_remove_device+0x128/0x1d0
[ 2453.407687] device_del+0x240/0x550
[ 2453.408053] ? waiting_for_supplier_show+0xe0/0xe0
[ 2453.408511] ? kobject_put+0xfa/0x2d0
[ 2453.408889] ? __kmem_cache_free+0x14d/0x280
[ 2453.409310] mlx5_rescan_drivers_locked.part.0+0xcd/0x2b0 [mlx5_core]
[ 2453.409973] mlx5_unregister_device+0x40/0x50 [mlx5_core]
[ 2453.410561] mlx5_uninit_one+0x3d/0x110 [mlx5_core]
[ 2453.411111] remove_one+0x89/0x130 [mlx5_core]
[ 24
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
accel/ivpu: Fix race condition when unbinding BOs
Fix 'Memory manager not clean during takedown' warning that occurs
when ivpu_gem_bo_free() removes the BO from the BOs list before it
gets unmapped. Then file_priv_unbind() triggers a warning in
drm_mm_takedown() during context teardown.
Protect the unmapping sequence with bo_list_lock to ensure the BO is
always fully unmapped when removed from the list. This ensures the BO
is either fully unmapped at context teardown time or present on the
list and unmapped by file_priv_unbind(). |
