{"id":"CVE-2026-98452","summary":"smb: client: clean up failed cached directory opens","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: clean up failed cached directory opens\n\nopen_cached_dir() sends CREATE and QUERY_INFO as a compound request. If\nthe CREATE succeeds but a later command returns an error, the function\nmust retain the CREATE FID so common cleanup can issue SMB2_close(). It\nalso must not treat a response error as a valid CREATE.\n\nValidate the CREATE response before using its fields, record the FIDs, and\nmark the handle open before handling errors from later compound commands.\nMove the -EREMCHG reconnect handling before response validation so a\nmissing response does not hide the reconnect request. Count the handle\nwhen it is marked open; confirmed close responses decrement the counter,\nwhile existing close retry behavior remains best effort on transport\nfailures.","modified":"2026-10-19T02:46:15.828506368Z","published":"2026-10-18T15:15:02.436Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98452.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/48958ddda3d7eee3600261e2d90671f63e055dc4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7c1509598a4fdfb54cb09ce33e4405bd6dbd8295"},{"type":"WEB","url":"https://git.kernel.org/stable/c/abab661eed00fa102d3c35ddf1cce4f687e718c1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d2ff5fb93ea83034025850266b5eed391f96b825"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98452.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98452"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b0f6df737a1c5d9d5ff90cc946205d8af46cc067"},{"fixed":"48958ddda3d7eee3600261e2d90671f63e055dc4"},{"fixed":"abab661eed00fa102d3c35ddf1cce4f687e718c1"},{"fixed":"7c1509598a4fdfb54cb09ce33e4405bd6dbd8295"},{"fixed":"d2ff5fb93ea83034025850266b5eed391f96b825"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98452.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.1.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.55"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98452.json"}}],"schema_version":"1.9.0"}