{"id":"CVE-2025-37777","summary":"ksmbd: fix use-after-free in __smb2_lease_break_noti()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in __smb2_lease_break_noti()\n\nMove tcp_transport free to ksmbd_conn_free. If ksmbd connection is\nreferenced when ksmbd server thread terminates, It will not be freed,\nbut conn-\u003etcp_transport is freed. __smb2_lease_break_noti can be performed\nasynchronously when the connection is disconnected. __smb2_lease_break_noti\ncalls ksmbd_conn_write, which can cause use-after-free\nwhen conn-\u003eksmbd_transport is already freed.","modified":"2026-04-02T12:47:27.433724Z","published":"2025-05-01T13:07:15.741Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37777.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1aec4d14cf81b7b3e7b69eb1cfa94144eed7138e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1da8bd9a10ecd718692732294d15fd801c0eabb5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e59796fc80603bcd8569d4d2e10b213c1918edb4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37777.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-37777"},{"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":"1da8bd9a10ecd718692732294d15fd801c0eabb5"},{"fixed":"1aec4d14cf81b7b3e7b69eb1cfa94144eed7138e"},{"fixed":"e59796fc80603bcd8569d4d2e10b213c1918edb4"},{"fixed":"21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37777.json"}}],"schema_version":"1.7.5"}