{"id":"CVE-2026-43189","summary":"media: v4l2-async: Fix error handling on steps after finding a match","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-async: Fix error handling on steps after finding a match\n\nOnce an async connection is found to be matching with an fwnode, a\nsub-device may be registered (in case it wasn't already), its bound\noperation is called, ancillary links are created, the async connection\nis added to the sub-device's list of connections and removed from the\nglobal waiting connection list. Further on, the sub-device's possible own\nnotifier is searched for possible additional matches.\n\nFix these specific issues:\n\n- If v4l2_async_match_notify() failed before the sub-notifier handling,\n  the async connection was unbound and its entry removed from the\n  sub-device's async connection list. The latter part was also done in\n  v4l2_async_match_notify().\n\n- The async connection's sd field was only set after creating ancillary\n  links in v4l2_async_match_notify(). It was however dereferenced in\n  v4l2_async_unbind_subdev_one(), which was called on error path of\n  v4l2_async_match_notify() failure.","modified":"2026-06-18T03:55:10.711340878Z","published":"2026-05-06T11:27:59.108Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43189.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2de0a3c8148fc3dbea21981e6569f550b3626119"},{"type":"WEB","url":"https://git.kernel.org/stable/c/30aaed311f973f13ba13a0cd2dc0202f595fff48"},{"type":"WEB","url":"https://git.kernel.org/stable/c/461733d83e67ba7e3a5b750c0d203f738e01244f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7345d6d356336c448d6b9230ed8704f39679fd12"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b02bcb378efa8af07827f49b3afcc5e825318c55"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43189.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43189"},{"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":"28a1295795d85a25f2e7dd391c43969e95fcb341"},{"fixed":"30aaed311f973f13ba13a0cd2dc0202f595fff48"},{"fixed":"461733d83e67ba7e3a5b750c0d203f738e01244f"},{"fixed":"b02bcb378efa8af07827f49b3afcc5e825318c55"},{"fixed":"2de0a3c8148fc3dbea21981e6569f550b3626119"},{"fixed":"7345d6d356336c448d6b9230ed8704f39679fd12"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43189.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43189.json"}}],"schema_version":"1.7.5"}