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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f97d5c2a453e26071e3b0ec12161de57c4a237c4 to < 7b379353e9144e1f7460ff15f39862012c9d0d78affectedf97d5c2a453e26071e3b0ec12161de57c4a237c4 to < 650e24748e1e0a7ff91d5c72b72a2f2a452b5b76affectedf97d5c2a453e26071e3b0ec12161de57c4a237c4 to < 50d8009a0ac02c3311b23a0066511f8337bd88d9affectedf97d5c2a453e26071e3b0ec12161de57c4a237c4 to < fba8334721e266f92079632598e46e5f89082f30affected
Linux Linux
Default version status: affected
5.16affected0 to < 5.16unaffected6.1.105 to ≤ 6.1.*unaffected6.6.46 to ≤ 6.6.*unaffected6.10.5 to ≤ 6.10.*unaffected6.11 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/7b379353e9144e1f7460ff15f39862012c9d0d78 ↗
- https://git.kernel.org/stable/c/650e24748e1e0a7ff91d5c72b72a2f2a452b5b76 ↗
- https://git.kernel.org/stable/c/50d8009a0ac02c3311b23a0066511f8337bd88d9 ↗
- https://git.kernel.org/stable/c/fba8334721e266f92079632598e46e5f89082f30 ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗