CVE-2026-23043

linux: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix NULL pointer dereference in do_abort_...

CVE-2026-23043 is fixed in linux on 1 platform by DEBIAN-CVE-2026-23043 (version 6.18.8-1), released February 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix NULL pointer dereference in do_abort_log_replay() Coverity reported a NULL pointer dereference issue (CID 1666756) in do_abort_log_replay(). When btrfs_alloc_path() fails in replay_one_buffer(), wc->subvol_path is NULL, but btrfs_abort_log_replay() calls do_abort_log_replay() which unconditionally dereferences wc->subvol_path when attempting to print debug information. Fix this by adding a NULL check before dereferencing wc->subvol_path in do_abort_log_replay().

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 14 6.18.8-1 DEBIAN-CVE-2026-23043 Feb 4, 2026

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