CVE-2024-44970

net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink

MEDIUM

5.5

CVSS Score

Published: September 4, 2024 at 06:56 PM UTC

Updated: August 5, 2026 at 12:04 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink When all the strides in a WQE have been consumed, the WQE is unlinked from the WQ linked list (mlx5_wq_ll_pop()). For SHAMPO, it is possible to receive CQEs with 0 consumed strides for the same WQE even after the WQE is fully consumed and unlinked. This triggers an additional unlink for the same wqe which corrupts the linked list. Fix this scenario by accepting 0 sized consumed strides without unlinking the WQE again.

Affected

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

Linux Kernel · Linux

95%

v < 6.1.1055.16 ≤ v < 6.1.1055.16 ≤ v < 6.10.55.16 ≤ v < 6.115.16 ≤ v < 6.6.466.2 ≤ v < 6.6.466.7 ≤ v < 6.10.55.16f97d5c2a453e26071e3b0ec12161de57c4a237c4

Vendor states this is fixed in 50d8009a0ac02c3311b23a0066511f8337bd88d9 (fixed)

Vendor states this is fixed in 650e24748e1e0a7ff91d5c72b72a2f2a452b5b76 (fixed)

Vendor states this is fixed in 7b379353e9144e1f7460ff15f39862012c9d0d78 (fixed)

Vendor states this is fixed in fba8334721e266f92079632598e46e5f89082f30 (fixed)

Vendor states this is fixed in 5.16 (unaffected)

Vendor states this is fixed in 6.1.105 (unaffected)

Vendor states this is fixed in 6.10.5 (unaffected)

Vendor states this is fixed in 6.11 (unaffected)

Vendor states this is fixed in 6.6.46 (unaffected)