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CVE-2023-4385

Kernel: jfs: null pointer dereference in dbfree()

Published: 8/16/2023 Last updated: 11/20/2025 Reserved: 8/16/2023

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 5.5 Medium CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (11)

Product Vendor Version
Red Hat Enterprise Linux 6 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat unspecified
Red Hat Enterprise Linux 9 Red Hat <= 1.0.0
Red Hat Enterprise Linux 6 Red Hat Snapdragon W5+ Gen 1 Wearable Platform
Red Hat Enterprise Linux 8 Red Hat unspecified
Red Hat Enterprise Linux 9 Red Hat Snapdragon X65 5G Modem-RF System
Red Hat Enterprise Linux 7 Red Hat 430
Red Hat Enterprise Linux 8 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat WRC-300FEBK-S
Red Hat Enterprise Linux 7 Red Hat Snapdragon X55 5G Modem-RF System
Red Hat Enterprise Linux 9 Red Hat unspecified

References (12)