Bug 2395323 (CVE-2023-53153)

Summary: CVE-2023-53153 kernel: wifi: cfg80211: Fix use after free for wext
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-09-15 15:07:31 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: Fix use after free for wext

Key information in wext.connect is not reset on (re)connect and can hold
data from a previous connection.

Reset key data to avoid that drivers or mac80211 incorrectly detect a
WEP connection request and access the freed or already reused memory.

Additionally optimize cfg80211_sme_connect() and avoid an useless
schedule of conn_work.
Comment 1 Jon Moroney 2025-09-15 21:55:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091553-CVE-2023-53153-d85c@gregkh/T