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CVE-2023-54074

net/mlx5e: Use correct encap attribute during invalidation

HIGH
7.8
CVSS Score
Published: December 24, 2025 at 12:23 PM UTC
Updated: August 5, 2026 at 10:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Use correct encap attribute during invalidation With introduction of post action infrastructure most of the users of encap attribute had been modified in order to obtain the correct attribute by calling mlx5e_tc_get_encap_attr() helper instead of assuming encap action is always on default attribute. However, the cited commit didn't modify mlx5e_invalidate_encap() which prevents it from destroying correct modify header action which leads to a warning [0]. Fix the issue by using correct attribute. [0]: Feb 21 09:47:35 c-237-177-40-045 kernel: WARNING: CPU: 17 PID: 654 at drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:684 mlx5e_tc_attach_mod_hdr+0x1cc/0x230 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: RIP: 0010:mlx5e_tc_attach_mod_hdr+0x1cc/0x230 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: Call Trace: Feb 21 09:47:35 c-237-177-40-045 kernel: <TASK> Feb 21 09:47:35 c-237-177-40-045 kernel: mlx5e_tc_fib_event_work+0x8e3/0x1f60 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: ? mlx5e_take_all_encap_flows+0xe0/0xe0 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: ? lock_downgrade+0x6d0/0x6d0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x273/0x3f0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x273/0x3f0 Feb 21 09:47:35 c-237-177-40-045 kernel: process_one_work+0x7c2/0x1310 Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x3f0/0x3f0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? pwq_dec_nr_in_flight+0x230/0x230 Feb 21 09:47:35 c-237-177-40-045 kernel: ? rwlock_bug.part.0+0x90/0x90 Feb 21 09:47:35 c-237-177-40-045 kernel: worker_thread+0x59d/0xec0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? __kthread_parkme+0xd9/0x1d0

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.18 ≤ v < 6.1.315.18 ≤ v < 6.3.55.18 ≤ v < 6.45.188300f225268be9ee2c0daf5a3f23929fcdcbf213
Vendor states this is fixed in 00959a1bad58e4b6c14a2729f84d354255073609 (fixed)
Vendor states this is fixed in b8b4292fdd8818ab43b943b6717811651f51e39f (fixed)
Vendor states this is fixed in be071cdb167fc3e25fe81922166b3d499d23e8ac (fixed)
Vendor states this is fixed in 5.18 (unaffected)
Vendor states this is fixed in 6.1.31 (unaffected)
Vendor states this is fixed in 6.3.5 (unaffected)
Vendor states this is fixed in 6.4 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: cverecord
https://git.kernel.org/stable/c/00959a1bad58e4b6c14a2729f84d354255073609
Source: cverecord
https://git.kernel.org/stable/c/b8b4292fdd8818ab43b943b6717811651f51e39f
Source: cverecord
https://git.kernel.org/stable/c/be071cdb167fc3e25fe81922166b3d499d23e8ac

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusDEFERRED

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