CVE-2023-53153

wifi: cfg80211: Fix use after free for wext

State: Published
Severity: Not scored
Published: Sep 15, 2025
Updated: May 11, 2026
Reserved: May 2, 2025

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 66af4a2ab1d65d556d638cb9555a3b823c2557a9Affected fffd0934b9390f34bec45762192b7edd3b12b4b5 to before a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6Affected fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2Affected fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 2cfe78619b0de6d2da773978bc2d22797212eaa7Affected fffd0934b9390f34bec45762192b7edd3b12b4b5 to before fd081afd21eb35b968b0330700c43ec94986e1c4Affected fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 22dfb21bf1cd876616d45cda1bc6daa89eec6747Affected fffd0934b9390f34bec45762192b7edd3b12b4b5 to before f4b6a138efb8a32507b8946104e32cb926308da7Affected fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 015b8cc5e7c4d7bb671f1984d7b7338c310b185bAffected
LinuxLinux	2.6.32Affected before 2.6.32Not affected 4.14.308 through 4.14.Not affected 4.19.276 through 4.19.Not affected 5.4.235 through 5.4.Not affected 5.10.173 through 5.10.Not affected 5.15.99 through 5.15.Not affected 6.1.16 through 6.1.Not affected 6.2.3 through 6.2.*Not affected 6.3 and laterNot affected

Product

Versions

LinuxLinux

fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 66af4a2ab1d65d556d638cb9555a3b823c2557a9Affected
fffd0934b9390f34bec45762192b7edd3b12b4b5 to before a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6Affected
fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2Affected
fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 2cfe78619b0de6d2da773978bc2d22797212eaa7Affected
fffd0934b9390f34bec45762192b7edd3b12b4b5 to before fd081afd21eb35b968b0330700c43ec94986e1c4Affected
fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 22dfb21bf1cd876616d45cda1bc6daa89eec6747Affected
fffd0934b9390f34bec45762192b7edd3b12b4b5 to before f4b6a138efb8a32507b8946104e32cb926308da7Affected
fffd0934b9390f34bec45762192b7edd3b12b4b5 to before 015b8cc5e7c4d7bb671f1984d7b7338c310b185bAffected

LinuxLinux

2.6.32Affected
before 2.6.32Not affected
4.14.308 through 4.14.*Not affected
4.19.276 through 4.19.*Not affected
5.4.235 through 5.4.*Not affected
5.10.173 through 5.10.*Not affected
5.15.99 through 5.15.*Not affected
6.1.16 through 6.1.*Not affected
6.2.3 through 6.2.*Not affected
6.3 and laterNot affected

References

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