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VulnerabilityPublished Updated

CVE-2026-46152: Linux kernel · wifi: mac80211: drop stray 'static' from fast-RX rx_result

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High · fixed in e131562d6f2b958148c35c98831b007f47f0e3d3 : patch Linux kernel soon.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Total control over the software or total information disclosure

CISA SSVC assessment, 2026-10-16.

Patch
Available – fixed in e131562d6f2b958148c35c98831b007f47f0e3d3, 03584528bfffb195e384698af9148b94e42e3f14, 1739fc31b4de06c5c78ce0741182770fb079091e +2
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 3468e1e0c639032a603450f0830ccabfa76f5806, < e131562d6f2b958148c35c98831b007f47f0e3d3
Fixed in
  • e131562d6f2b958148c35c98831b007f47f0e3d3
LinuxLinuxAffected
  • ≥ 3468e1e0c639032a603450f0830ccabfa76f5806, < 03584528bfffb195e384698af9148b94e42e3f14
Fixed in
  • 03584528bfffb195e384698af9148b94e42e3f14
LinuxLinuxAffected
  • ≥ 3468e1e0c639032a603450f0830ccabfa76f5806, < 1739fc31b4de06c5c78ce0741182770fb079091e
Fixed in
  • 1739fc31b4de06c5c78ce0741182770fb079091e
LinuxLinuxAffected
  • ≥ 3468e1e0c639032a603450f0830ccabfa76f5806, < 7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba
Fixed in
  • 7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba
LinuxLinuxAffected
  • ≥ 3468e1e0c639032a603450f0830ccabfa76f5806, < 3ef44f96ccc3e06e059dec57842e366f0c4b1893
Fixed in
  • 3ef44f96ccc3e06e059dec57842e366f0c4b1893
LinuxLinuxAffected
  • =6.4
Fixed in–

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.

References

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