CVE-2024-36922

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-25)

Published

2024-05-30

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/43d07103df670484cdd26f9588eabef80f69db89
• https://git.kernel.org/stable/c/aab7b39fcac5f6165f6434bcbb56bb7865d4ad2b
• https://git.kernel.org/stable/c/b83db8e756dec68a950ed2f056248b1704b3deaa
• https://git.kernel.org/stable/c/c2ace6300600c634553657785dfe5ea0ed688ac2
• https://git.kernel.org/stable/c/f30e8af109818c9db08cbcc46eb9713fe4b530ba

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