Vulnerability CVE-2024-44970
Published: 2024-09-04

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.

 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
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