Bug 2436806 (CVE-2026-23040) - CVE-2026-23040 kernel: wifi: mac80211_hwsim: fix typo in frequency notification
Summary: CVE-2026-23040 kernel: wifi: mac80211_hwsim: fix typo in frequency notification
Keywords:
Status: NEW
Alias: CVE-2026-23040
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-04 17:04 UTC by OSIDB Bzimport
Modified: 2026-02-04 21:16 UTC (History)
0 users

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Description OSIDB Bzimport 2026-02-04 17:04:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211_hwsim: fix typo in frequency notification

The NAN notification is for 5745 MHz which corresponds to channel 149
and not 5475 which is not actually a valid channel. This could result in
a NULL pointer dereference in cfg80211_next_nan_dw_notif.
Comment 1 Jon Moroney 2026-02-04 21:10:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026020438-CVE-2026-23040-1980@gregkh/T
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