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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98423

wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping The code checks ->started for frames coming from wmediumd, but the radio can be stopped after the check and before frame delivery, causing mac80211 to hit the WARN_ON(!local->started). Expand the mutex for this case and synchronise against it when the radio is stopped to avoid being able to hit the warning with hwsim. Drop the error print that would've complicated the error path, it only triggers for allocation failures (already noisy) and malformed frames anyway.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 7882513bacb176ab4aacceefdd035ca9479da4fb to < 5ce9b2bc9e73213e316a8c72400256a76bf41814affected
  • 7882513bacb176ab4aacceefdd035ca9479da4fb to < c4e4fe330294e3936e0f4e15d6996468f8a45fb2affected
  • 7882513bacb176ab4aacceefdd035ca9479da4fb to < 2f59be7585dc81baa6f36b0035dd6848ea43d318affected
  • 7882513bacb176ab4aacceefdd035ca9479da4fb to < 5c79ef616aa16af582fb2cb93b0f750975a0004faffected
  • 7882513bacb176ab4aacceefdd035ca9479da4fb to < d7fa45d8123a7f794b93fc22dbcf19f38dc4d8cbaffected
  • 7882513bacb176ab4aacceefdd035ca9479da4fb to < 87840d4a3a21b1c19b867a80e16ba69dff284de2affected

Linux Linux

Default version status: affected

  • 3.1affected
  • 0 to < 3.1unaffected
  • 6.1.189 to ≤ 6.1.*unaffected
  • 6.6.158 to ≤ 6.6.*unaffected
  • 6.12.112 to ≤ 6.12.*unaffected
  • 6.18.54 to ≤ 6.18.*unaffected
  • 7.2.8 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References