{"id":"CVE-2025-21955","summary":"ksmbd: prevent connection release during oplock break notification","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: prevent connection release during oplock break notification\n\nksmbd_work could be freed when after connection release.\nIncrement r_count of ksmbd_conn to indicate that requests\nare not finished yet and to not release the connection.","modified":"2026-04-16T04:41:00.151661186Z","published":"2025-04-01T15:46:55.724Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21955.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/09aeab68033161cb54f194da93e51a11aee6144b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3aa660c059240e0c795217182cf7df32909dd917"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a4261bbc33fbf99b99c80aa3a2c5097611802980"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21955.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21955"},{"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":"0626e6641f6b467447c81dd7678a69c66f7746cf"},{"fixed":"09aeab68033161cb54f194da93e51a11aee6144b"},{"fixed":"a4261bbc33fbf99b99c80aa3a2c5097611802980"},{"fixed":"f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa"},{"fixed":"3aa660c059240e0c795217182cf7df32909dd917"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21955.json"}}],"schema_version":"1.7.5"}