wifi: mac80211: drop stray 'static' from fast-RX rx_result

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Summary

CVECVE-2026-46152
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:30 UTC
Updated2026-05-28 13:44:01 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drop stray 'static' from fast-RX rx_result ieee80211_invoke_fast_rx() is documented as safe for parallel RX, but its per-invocation rx_result is declared static. Concurrent callers then share one instance and can overwrite each other's result between ieee80211_rx_mesh_data() and the switch on res. That can make a packet that was queued or consumed by ieee80211_rx_mesh_data() fall through into ieee80211_rx_8023(), or make a packet that should continue return as queued. Make res an automatic variable so each invocation keeps its own result.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.051520000 (date 2026-05-28)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3468e1e0c639032a603450f0830ccabfa76f5806 03584528bfffb195e384698af9148b94e42e3f14 git Not specified
CNA Linux Linux affected 3468e1e0c639032a603450f0830ccabfa76f5806 1739fc31b4de06c5c78ce0741182770fb079091e git Not specified
CNA Linux Linux affected 3468e1e0c639032a603450f0830ccabfa76f5806 e131562d6f2b958148c35c98831b007f47f0e3d3 git Not specified
CNA Linux Linux affected 3468e1e0c639032a603450f0830ccabfa76f5806 3ef44f96ccc3e06e059dec57842e366f0c4b1893 git Not specified
CNA Linux Linux affected 3468e1e0c639032a603450f0830ccabfa76f5806 7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba git Not specified
CNA Linux Linux affected 6.4 Not specified
CNA Linux Linux unaffected 6.4 semver Not specified
CNA Linux Linux unaffected 6.6.140 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.88 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.30 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.7 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1739fc31b4de06c5c78ce0741182770fb079091e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/03584528bfffb195e384698af9148b94e42e3f14 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e131562d6f2b958148c35c98831b007f47f0e3d3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3ef44f96ccc3e06e059dec57842e366f0c4b1893 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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