Description
In the Linux kernel, the following vulnerability has been resolved: EDAC/igen6: Avoid segmentation fault on module unload The segmentation fault happens because: During modprobe: 1. In igen6_probe(), igen6_pvt will be allocated with kzalloc() 2. In igen6_register_mci(), mci->pvt_info will point to &igen6_pvt->imc[mc] During rmmod: 1. In mci_release() in edac_mc.c, it will kfree(mci->pvt_info) 2. In igen6_remove(), it will kfree(igen6_pvt); Fix this issue by setting mci->pvt_info to NULL to avoid the double kfree.
Product status
10590a9d4f23e0a519730d79d39331df60ad2079 (git) before 029ac07bb92d2f7502d47a4916f197a8445d83bf
10590a9d4f23e0a519730d79d39331df60ad2079 (git) before 2a80e710bbc088a2511c159ee4d910456c5f0832
10590a9d4f23e0a519730d79d39331df60ad2079 (git) before 830cabb61113d92a425dd3038ccedbdfb3c8d079
10590a9d4f23e0a519730d79d39331df60ad2079 (git) before e5c7052664b61f9e2f896702d20552707d0ef60a
10590a9d4f23e0a519730d79d39331df60ad2079 (git) before db60326f2c47b079e36785ace621eb3002db2088
10590a9d4f23e0a519730d79d39331df60ad2079 (git) before fefaae90398d38a1100ccd73b46ab55ff4610fba
5.11
Any version before 5.11
5.15.174 (semver)
6.1.120 (semver)
6.6.64 (semver)
6.11.11 (semver)
6.12.2 (semver)
6.13 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/03/msg00001.html
git.kernel.org/...c/029ac07bb92d2f7502d47a4916f197a8445d83bf
git.kernel.org/...c/2a80e710bbc088a2511c159ee4d910456c5f0832
git.kernel.org/...c/830cabb61113d92a425dd3038ccedbdfb3c8d079
git.kernel.org/...c/e5c7052664b61f9e2f896702d20552707d0ef60a
git.kernel.org/...c/db60326f2c47b079e36785ace621eb3002db2088
git.kernel.org/...c/fefaae90398d38a1100ccd73b46ab55ff4610fba