bnxt_en: Don't free the live ring's TPA state on queue restart failure

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Summary

CVECVE-2026-97574
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:08 UTC
Updated2026-09-25 11:17:08 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: bnxt_en: Don't free the live ring's TPA state on queue restart failure bnxt_queue_mem_alloc() shallow copies the live RX ring into the clone: memcpy(clone, rxr, sizeof(*rxr)); the code currently clears pointers that the clone owns (such as rx_agg_bmap), but rx_tpa and rx_tpa_idx_map are left pointing at memory of the live ring that was cloned. If an allocation failure happens later and the err_free_tpa_info label is taken, the live ring's memory can be freed while still in use. Fix this by initializing the clone's pointers to NULL to prevent live ring state from being freed inadvertently.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected bd649c5cc958169b8a8a3e77ea926d92d472b02a 8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27 git Not specified
CNA Linux Linux affected bd649c5cc958169b8a8a3e77ea926d92d472b02a 0596a7caa6fc283e142716739099c038d8714082 git Not specified
CNA Linux Linux affected bd649c5cc958169b8a8a3e77ea926d92d472b02a 5ce7f36c334d723954855ac769ede2fe0e8f89c8 git Not specified
CNA Linux Linux affected 0997443906b96a051011f220a61e6dce4602ec54 git Not specified
CNA Linux Linux affected 6.12.20 6.13 semver Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5ce7f36c334d723954855ac769ede2fe0e8f89c8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0596a7caa6fc283e142716739099c038d8714082 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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