Riskcovery

CVE-2026-46152

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

State
Published
Severity
8.8 High
Published
May 28, 2026
Updated
Oct 19, 2026
Reserved
May 13, 2026

Read the record on cve.org

Description

In 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.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
3.17.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat-SADP

Weaknesses

  • CWE-1058 Invokable Control Element in Multi-Thread Context with non-Final Static Storable or Member Element
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Affected Products

ProductVersions
LinuxLinux
  • 3468e1e0c639032a603450f0830ccabfa76f5806 to before 03584528bfffb195e384698af9148b94e42e3f14Affected
  • 3468e1e0c639032a603450f0830ccabfa76f5806 to before 1739fc31b4de06c5c78ce0741182770fb079091eAffected
  • 3468e1e0c639032a603450f0830ccabfa76f5806 to before e131562d6f2b958148c35c98831b007f47f0e3d3Affected
  • 3468e1e0c639032a603450f0830ccabfa76f5806 to before 3ef44f96ccc3e06e059dec57842e366f0c4b1893Affected
  • 3468e1e0c639032a603450f0830ccabfa76f5806 to before 7a5b81e0c87a075afd572f659d8eb68c9c4cd2baAffected
LinuxLinux
  • 6.4Affected
  • before 6.4Not affected
  • 6.6.140 through 6.6.*Not affected
  • 6.12.88 through 6.12.*Not affected
  • 6.18.30 through 6.18.*Not affected
  • 7.0.7 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.