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CVE

DEBIAN-CVE-2026-64122

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix use-after-free in mlx5e_tx_reporter_timeout_recover mlx5e_tx_reporter_timeout_recover() accesses sq->netdev after m...
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CVE

DEBIAN-CVE-2026-64122

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix use-after-free in mlx5e_tx_reporter_timeout_recover mlx5e_tx_reporter_timeout_recover() accesses sq->netdev after m...

In the Linux kernel, the following vulnerability has been resolved:  net/mlx5e: Fix use-after-free in mlx5etxreportertimeoutrecover  mlx5etxreportertimeoutrecover() accesses sq->netdev after mlx5esafereopenchannels() has torn down and freed the channel (and its embedded SQs). Replace the three sq->netdev references with priv->netdev which is safe because priv outlives channel teardown.  The netdeverr() call already used priv->netdev for this reason; make the trylock/unlock and healthchanneleqrecover calls consistent.  This fixes the following KASAN splat:    BUG: KASAN: use-after-free in mlx5etxreportertimeoutrecover+0x1dd/0x360 [mlx5core]   Read of size 8 at addr ffff889860ed0b28 by task kworker/u113:2/5277    Call Trace:    mlx5etxreportertimeoutrecover+0x1dd/0x360 [mlx5core]    devlinkhealthreporterrecover+0xa2/0x150    devlinkhealthreport+0x254/0x7c0    mlx5ereportertxtimeout+0x297/0x380 [mlx5core]    mlx5etxtimeoutwork+0x109/0x170 [mlx5core]    processonework+0x677/0xf20    workerthread+0x51f/0xd90    kthread+0x3a5/0x810    retfromfork+0x208/0x400    retfromforkasm+0x1a/0x30

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://security-tracker.debian.org/tracker/CVE-2026-64122

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
7.0.12-1

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