Riskcovery

CVE-2024-36922

wifi: iwlwifi: read txq->read_ptr under lock

State
Published
Severity
8.8 High
Published
May 30, 2024
Updated
Oct 15, 2026
Reserved
May 30, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: read txq->read_ptr under lock

If we read txq->read_ptr without lock, we can read the same value twice, then obtain the lock, and reclaim from there to two different places, but crucially reclaim the same entry twice, resulting in the WARN_ONCE() a little later. Fix that by reading txq->read_ptr under lock.

Scores

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

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 to before f30e8af109818c9db08cbcc46eb9713fe4b530baAffected
  • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 to before aab7b39fcac5f6165f6434bcbb56bb7865d4ad2bAffected
  • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 to before b83db8e756dec68a950ed2f056248b1704b3deaaAffected
  • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 to before 43d07103df670484cdd26f9588eabef80f69db89Affected
  • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 to before c2ace6300600c634553657785dfe5ea0ed688ac2Affected
LinuxLinux
  • 4.19Affected
  • before 4.19Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.31 through 6.6.*Not affected
  • 6.8.10 through 6.8.*Not affected
  • 6.9 and laterNot affected

References

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