A flaw in the Linux Kernel found in the GFS2 file system. On corrupted gfs2 file systems the evict code can try to reference the journal descriptor structure, jdesc, after it has been freed and set to NULL. It can lead to null pointer dereference when gfs2_trans_begin being called and then fail ingfs2_evict_inode(). Reference: https://listman.redhat.com/archives/cluster-devel/2023-April/023914.html
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2214349]
This was fixed for Fedora with the 6.3.7 stable kernel updates.
Upstream commit: https://github.com/torvalds/linux/commit/504a10d9e46bc37b23d0a1ae2f28973c8516e636
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:6583 https://access.redhat.com/errata/RHSA-2023:6583
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:6901 https://access.redhat.com/errata/RHSA-2023:6901
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:7077 https://access.redhat.com/errata/RHSA-2023:7077