CVE-2023-4385

5.5 mediumEPSS 0.2%

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.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2023-08-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

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

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