Medium 5.5Published Apr 3, 2026

CVE-2026-23420wifi: wlcore: Fix a locking bug

Updated under an hour ago (Oct 27, 2026, 11:10 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: wifi: wlcore: Fix a locking bug Make sure that wl->mutex is locked before it is unlocked. This has been detected by the Clang thread-safety analyzer.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	45aa7f071b06c8481afed4c7b93e07c9584741e8 builds before 4ae8faf31b24c78653f4433298ee52813a56967a; from 45aa7f071b06c8481afed4c7b93e07c9584741e8 before fc404390a386404cf9822d4091ccae1f61efcbcd; 45aa7f071b06c8481afed4c7b93e07c9584741e8 builds before 7ab511003c5ae3bf5364d7699a2e3ab1db513680; from 45aa7f071b06c8481afed4c7b93e07c9584741e8 before aca4c9e4901b01b8b985993dc7df80bd1d1338bd; 45aa7f071b06c8481afed4c7b93e07c9584741e8 builds before 5feeea59ed142e15c3284d0b1a364c6786bf3487; from 45aa7f071b06c8481afed4c7b93e07c9584741e8 before fcef983ad88832f3aa83491a174c345de57afbbd; 45aa7f071b06c8481afed4c7b93e07c9584741e8 builds before 1a1c28a08d74716f3f8e3a21c86b30d0ff13521a; from 45aa7f071b06c8481afed4c7b93e07c9584741e8 before 72c6df8f284b3a49812ce2ac136727ace70acc7c	CNA record
linux linux_kernel linux:linux_kernel	from 4.19.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.77; from 6.13 before 6.18.17; from 6.19 before 6.19.7; 4.19; and 7 more ranges	NVD

References

References

https://git.kernel.org/stable/c/4ae8faf31b24c78653f4433298ee52813a56967a	patch
https://git.kernel.org/stable/c/fc404390a386404cf9822d4091ccae1f61efcbcd	patch
https://git.kernel.org/stable/c/7ab511003c5ae3bf5364d7699a2e3ab1db513680	patch
https://git.kernel.org/stable/c/aca4c9e4901b01b8b985993dc7df80bd1d1338bd	patch
https://git.kernel.org/stable/c/5feeea59ed142e15c3284d0b1a364c6786bf3487	patch
https://git.kernel.org/stable/c/fcef983ad88832f3aa83491a174c345de57afbbd	patch
https://git.kernel.org/stable/c/1a1c28a08d74716f3f8e3a21c86b30d0ff13521a	patch
https://git.kernel.org/stable/c/72c6df8f284b3a49812ce2ac136727ace70acc7c	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.