Bug 2395321 (CVE-2023-53209) - CVE-2023-53209 kernel: wifi: mac80211_hwsim: Fix possible NULL dereference
Summary: CVE-2023-53209 kernel: wifi: mac80211_hwsim: Fix possible NULL dereference
Keywords:
Status: NEW
Alias: CVE-2023-53209
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: 2025-09-15 15:07 UTC by OSIDB Bzimport
Modified: 2025-09-15 22:05 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-09-15 15:07:19 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211_hwsim: Fix possible NULL dereference

In a call to mac80211_hwsim_select_tx_link() the sta pointer might
be NULL, thus need to check that it is not NULL before accessing it.
Comment 1 Jon Moroney 2025-09-15 22:02:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091510-CVE-2023-53209-ed9e@gregkh/T
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