IB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74397
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:41 UTC
Updated2026-08-15 06:22:41 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier mlx5_ib_alloc_transport_domain() allocates a transport domain and then may fail in mlx5_ib_enable_lb(). In that case, the allocated TD is leaked. Fix this by deallocating the TD when mlx5_ib_enable_lb() returns an error. Also return 0 explicitly in the no-loopback-capability success branch, and move dev->lb.mutex initialization to mlx5_ib_stage_init_init().

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 146d2f1af3245a10b13eef263687e54f4e253d1d 2c3b2667dad69d56774b79db763acb3a1bee0fc0 git Not specified
CNA Linux Linux affected 146d2f1af3245a10b13eef263687e54f4e253d1d 37fc3cc0f924fd8d0f0cf87b92672dec75a32e57 git Not specified
CNA Linux Linux affected 146d2f1af3245a10b13eef263687e54f4e253d1d 65e344925fa30abf50c8de8c150b397715fa2066 git Not specified
CNA Linux Linux affected 146d2f1af3245a10b13eef263687e54f4e253d1d f88e12c95fc19f719e06ca1e9eb20fdad68ef61a git Not specified
CNA Linux Linux affected 146d2f1af3245a10b13eef263687e54f4e253d1d e79389115b9d27287ff6230a9750675106ed7668 git Not specified
CNA Linux Linux affected 4.5 Not specified
CNA Linux Linux unaffected 4.5 semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e79389115b9d27287ff6230a9750675106ed7668 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f88e12c95fc19f719e06ca1e9eb20fdad68ef61a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/37fc3cc0f924fd8d0f0cf87b92672dec75a32e57 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2c3b2667dad69d56774b79db763acb3a1bee0fc0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/65e344925fa30abf50c8de8c150b397715fa2066 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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