CVE-2026-90152
smb/server: fix session leak in ksmbd_session_register()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
f5c779b7ddbda30866cf2a27c63e34158f858c73 < 03a22a003f41b182245e6c71fe565e277cff7094 f5c779b7ddbda30866cf2a27c63e34158f858c73 < b967a595fb735d313a8676b2ca6a4cba38506482 f5c779b7ddbda30866cf2a27c63e34158f858c73 < 55c677619084f9c9fa4146d933cc8ccafc924c87 f5c779b7ddbda30866cf2a27c63e34158f858c73 < 99b25b046e47e4904373cfeb445c5483f1633d88 708c304b583d789957399dd8237f212cf8ad1e4d f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b d270631c21e68fb8016d6e231d022d7023a2df6f 02f41d88f15d6b7d523e52cc3f87488f57e9265b 5.15.145 < 5.16 6.1.29 < 6.2 6.2.16 < 6.3 6.3.2 < 6.4
Linux / Linux
6.4
References
git.kernel.org: https://git.kernel.org/stable/c/03a22a003f41b182245e6c71fe565e277cff7094 git.kernel.org: https://git.kernel.org/stable/c/b967a595fb735d313a8676b2ca6a4cba38506482 git.kernel.org: https://git.kernel.org/stable/c/55c677619084f9c9fa4146d933cc8ccafc924c87 git.kernel.org: https://git.kernel.org/stable/c/99b25b046e47e4904373cfeb445c5483f1633d88