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CVE-2023-4385

Kernel: jfs: null pointer dereference in dbfree()

CVSS 5.5 MEDIUMEPSS 0.2%CWE-476
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9

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References
https://access.redhat.com/security/cve/CVE-2023-4385https://bugzilla.redhat.com/show_bug.cgi?id=2219272https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1f