soc: xilinx: Shutdown and free rx mailbox channel

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80654
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:50 UTC
Updated2026-08-28 08:16:50 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Shutdown and free rx mailbox channel A mbox rx channel is requested using mbox_request_channel_byname() in probe. In remove callback, the rx mailbox channel is cleaned up when the rx_chan is NULL due to incorrect condition check. The mailbox channel is not shutdown and it can receive messages even after the device removal. This leads to use after free. Also the channel resources are not freed. Fix this by checking the rx_chan correctly.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.062800000 (date 2026-08-30)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df b0f748c563921a7918c78e6a599cefd54de7d688 git Not specified
CNA Linux Linux affected ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df a83e77d1e52c01c50096e6e97c57d34e0590d628 git Not specified
CNA Linux Linux affected ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5 git Not specified
CNA Linux Linux affected ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df fdee7c66c0d7b6869c36b9f9a915abf29ab5b550 git Not specified
CNA Linux Linux affected 5.6 Not specified
CNA Linux Linux unaffected 5.6 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 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b0f748c563921a7918c78e6a599cefd54de7d688 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a83e77d1e52c01c50096e6e97c57d34e0590d628 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fdee7c66c0d7b6869c36b9f9a915abf29ab5b550 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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