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Description

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().

PUBLISHED Reserved 2026-01-13 | Published 2026-02-04 | Updated 2026-02-09 | Assigner Linux

Product status

Default status
unaffected

2753e49176240f21e4bb10e03514f99e732704bb (git) before 6d1b61b8e1e44888c643d89225ab819b10649b2e
affected

2753e49176240f21e4bb10e03514f99e732704bb (git) before 530e3d4af566ca44807d79359b90794dea24c4f3
affected

Default status
affected

6.18
affected

Any version before 6.18
unaffected

6.18.6 (semver)
unaffected

6.19 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/6d1b61b8e1e44888c643d89225ab819b10649b2e

git.kernel.org/...c/530e3d4af566ca44807d79359b90794dea24c4f3

cve.org (CVE-2026-23043)

nvd.nist.gov (CVE-2026-23043)

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