{"id":"CVE-2024-50086","summary":"ksmbd: fix user-after-free from session log off","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix user-after-free from session log off\n\nThere is racy issue between smb2 session log off and smb2 session setup.\nIt will cause user-after-free from session log off.\nThis add session_lock when setting SMB2_SESSION_EXPIRED and referece\ncount to session struct not to free session while it is being used.","modified":"2026-03-20T12:39:34.649360Z","published":"2024-10-29T00:50:29.284Z","related":["USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50086.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0f62358ce85b2d4c949ef1b648be01b29cec667a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5511999e9615e4318e9142d23b29bd1597befc08"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7aa8804c0b67b3cb263a472d17f2cb50d7f1a930"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a9839c37fd813b432988f58a9d9dd59253d3eb2c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ee371898b53a9b9b51c02d22a8c31bfb86d45f0d"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50086.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-50086"},{"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":"0f62358ce85b2d4c949ef1b648be01b29cec667a"},{"fixed":"a9839c37fd813b432988f58a9d9dd59253d3eb2c"},{"fixed":"5511999e9615e4318e9142d23b29bd1597befc08"},{"fixed":"ee371898b53a9b9b51c02d22a8c31bfb86d45f0d"},{"fixed":"7aa8804c0b67b3cb263a472d17f2cb50d7f1a930"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50086.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}