CVE-2026-90152smb/server: fix session leak in ksmbd_session_register()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from f5c779b7ddbda30866cf2a27c63e34158f858c73 before 03a22a003f41b182245e6c71fe565e277cff7094; from f5c779b7ddbda30866cf2a27c63e34158f858c73 before b967a595fb735d313a8676b2ca6a4cba38506482; from f5c779b7ddbda30866cf2a27c63e34158f858c73 before 55c677619084f9c9fa4146d933cc8ccafc924c87; from f5c779b7ddbda30866cf2a27c63e34158f858c73 before 99b25b046e47e4904373cfeb445c5483f1633d88; 708c304b583d789957399dd8237f212cf8ad1e4d; f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b; d270631c21e68fb8016d6e231d022d7023a2df6f; 02f41d88f15d6b7d523e52cc3f87488f57e9265b; and 4 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/03a22a003f41b182245e6c71fe565e277cff7094
- https://git.kernel.org/stable/c/b967a595fb735d313a8676b2ca6a4cba38506482
- https://git.kernel.org/stable/c/55c677619084f9c9fa4146d933cc8ccafc924c87
- https://git.kernel.org/stable/c/99b25b046e47e4904373cfeb445c5483f1633d88
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.