CVE-2026-90152
Description
In the Linux kernel, the following vulnerability has been resolved: smb/server: fix session leak in ksmbd_session_register() See the procedure below: smb2_sess_setup ksmbd_smb2_session_create __session_create atomic_set(&sess->refcnt, 2) hash_add(sessions_table, &sess->hlist, sess->id) ksmbd_session_register xa_store(&conn->sessions, sess->id, sess) // fail ksmbd_user_session_put atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed Remove the session from sessions_table and drop its table reference if xa_store() fails.
How to fix
- Linux Linux869807cdd5599c289c21d40f36a504d72a0d23c6, 988f99bfddda4e2d1da5f6e98b237dd85e123cee, 03a22a003f41b182245e6c71fe565e277cff7094, b967a595fb735d313a8676b2ca6a4cba38506482, 55c677619084f9c9fa4146d933cc8ccafc924c87, 99b25b046e47e4904373cfeb445c5483f1633d88, 6.1.191, 5.16, 6.3, 6.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b ≤ v < 869807cdd5599c289c21d40f36a504d72a0d23c6, f5c779b7ddbda30866cf2a27c63e34158f858c73 ≤ v < 988f99bfddda4e2d1da5f6e98b237dd85e123cee, f5c779b7ddbda30866cf2a27c63e34158f858c73 ≤ v < 03a22a003f41b182245e6c71fe565e277cff7094, f5c779b7ddbda30866cf2a27c63e34158f858c73 ≤ v < b967a595fb735d313a8676b2ca6a4cba38506482, f5c779b7ddbda30866cf2a27c63e34158f858c73 ≤ v < 55c677619084f9c9fa4146d933cc8ccafc924c87, f5c779b7ddbda30866cf2a27c63e34158f858c73 ≤ v < 99b25b046e47e4904373cfeb445c5483f1633d88, 708c304b583d789957399dd8237f212cf8ad1e4d, d270631c21e68fb8016d6e231d022d7023a2df6f, 02f41d88f15d6b7d523e52cc3f87488f57e9265b, 6.1.29 ≤ v < 6.1.191, 5.15.145 ≤ v < 5.16, 6.2.16 ≤ v < 6.3, 6.3.2 ≤ v < 6.4, 6.4 | 869807cdd5599c289c21d40f36a504d72a0d23c6, 988f99bfddda4e2d1da5f6e98b237dd85e123cee, 03a22a003f41b182245e6c71fe565e277cff7094, b967a595fb735d313a8676b2ca6a4cba38506482, 55c677619084f9c9fa4146d933cc8ccafc924c87, 99b25b046e47e4904373cfeb445c5483f1633d88, 6.1.191, 5.16, 6.3, 6.4 |
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