PT-2026-6110 · Linux · Linux Kernel

CVE-2026-23040

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Published

2026-01-01

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Updated

2026-05-19

CVSS v2.0

6.0

Medium

VectorAV:L/AC:H/Au:S/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A flaw exists in the Linux kernel related to wifi and mac80211 hwsim. A typo in frequency notification could lead to a NULL pointer dereference in the cfg80211 next nan dw notif function. The notification incorrectly specifies a frequency of 5475 MHz, which is not a valid channel, instead of the correct frequency of 5745 MHz corresponding to channel 149.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

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Weakness Enumeration

Related Identifiers

ALSA-2026:18134
ALSA-2026:18587
BDU:2026-13792
CVE-2026-23040
RHSA-2026:18134
RHSA-2026:18587

Affected Products

Linux Kernel