{"id":"CVE-2026-90152","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix session leak in ksmbd_session_register()\n\nSee the procedure below:\n\n  smb2_sess_setup\n    ksmbd_smb2_session_create\n      __session_create\n        atomi…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix session leak in ksmbd_session_register()\n\nSee the procedure below:\n\n  smb2_sess_setup\n    ksmbd_smb2_session_create\n      __session_create\n        atomi…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f5c779b7ddbda30866cf2a27c63e34158f858c73 < 03a22a003f41b182245e6c71fe565e277cff7094","Linux >= f5c779b7ddbda30866cf2a27c63e34158f858c73 < b967a595fb735d313a8676b2ca6a4cba38506482","Linux >= f5c779b7ddbda30866cf2a27c63e34158f858c73 < 55c677619084f9c9fa4146d933cc8ccafc924c87","Linux >= f5c779b7ddbda30866cf2a27c63e34158f858c73 < 99b25b046e47e4904373cfeb445c5483f1633d88","Linux 708c304b583d789957399dd8237f212cf8ad1e4d","Linux f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b","Linux d270631c21e68fb8016d6e231d022d7023a2df6f","Linux 02f41d88f15d6b7d523e52cc3f87488f57e9265b","Linux >= 5.15.145 < 5.16","Linux >= 6.1.29 < 6.2","Linux >= 6.2.16 < 6.3","Linux >= 6.3.2 < 6.4","Linux 6.4"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:08.207","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90152","references":[{"url":"https://git.kernel.org/stable/c/03a22a003f41b182245e6c71fe565e277cff7094","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/55c677619084f9c9fa4146d933cc8ccafc924c87","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/99b25b046e47e4904373cfeb445c5483f1633d88","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b967a595fb735d313a8676b2ca6a4cba38506482","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.875Z","epss":0.002,"epssPercentile":0.101,"slug":"CVE-2026-90152","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix session leak in ksmbd_session_register()\n\nSee the procedure below:\n\n  smb2_sess_setup\n    ksmbd_smb2_session_create\n      __session_create\n        atomic_set(&sess->refcnt, 2)\n        hash_add(sessions_table, &sess->hlist, sess->id)\n    ksmbd_session_register\n      xa_store(&conn->sessions, sess->id, sess) // fail\n    ksmbd_user_session_put\n      atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed\n\nRemove the session from sessions_table and drop its table reference if\nxa_store() fails.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}