{"id":"CVE-2026-23043","summary":"btrfs: fix NULL pointer dereference in do_abort_log_replay()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix NULL pointer dereference in do_abort_log_replay()\n\nCoverity reported a NULL pointer dereference issue (CID 1666756) in\ndo_abort_log_replay(). When btrfs_alloc_path() fails in\nreplay_one_buffer(), wc-\u003esubvol_path is NULL, but btrfs_abort_log_replay()\ncalls do_abort_log_replay() which unconditionally dereferences\nwc-\u003esubvol_path when attempting to print debug information. Fix this by\nadding a NULL check before dereferencing wc-\u003esubvol_path in\ndo_abort_log_replay().","modified":"2026-08-12T03:51:22.165691383Z","published":"2026-02-04T16:00:26.353Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23043.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/530e3d4af566ca44807d79359b90794dea24c4f3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6d1b61b8e1e44888c643d89225ab819b10649b2e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23043.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23043"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2753e49176240f21e4bb10e03514f99e732704bb"},{"fixed":"6d1b61b8e1e44888c643d89225ab819b10649b2e"},{"fixed":"530e3d4af566ca44807d79359b90794dea24c4f3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23043.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.18.0"},{"fixed":"6.18.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23043.json"}}],"schema_version":"1.9.0"}