CVE-2024-27396

NameCVE-2024-27396
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: gtp: Fix Use-After-Free in gtp_dellink Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of gtp_dellink, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.304-1vulnerable
bullseye5.10.209-2vulnerable
bullseye (security)5.10.216-1fixed
bookworm6.1.76-1vulnerable
bookworm (security)6.1.90-1fixed
trixie6.7.12-1vulnerable
sid6.8.9-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.216-1
linuxsourcebookworm6.1.90-1
linuxsource(unstable)6.8.9-1

Notes

https://git.kernel.org/linus/f2a904107ee2b647bb7794a1a82b67740d7c8a64 (6.9-rc6)

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