CVE-2026-90152
Received
Received - Intake
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Vulnerability report for CVE-2026-90152, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-17
Last updated on: 2026-09-17
Assigner: kernel.org
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | f5c779b7ddbda30866cf2a27c63e34158f858c73 |
| Linux | Linux | f5c779b7ddbda30866cf2a27c63e34158f858c73 |
| Linux | Linux | f5c779b7ddbda30866cf2a27c63e34158f858c73 |
| Linux | Linux | f5c779b7ddbda30866cf2a27c63e34158f858c73 |
| Linux | Linux | 708c304b583d789957399dd8237f212cf8ad1e4d |
| Linux | Linux | f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b |
| Linux | Linux | d270631c21e68fb8016d6e231d022d7023a2df6f |
| Linux | Linux | 02f41d88f15d6b7d523e52cc3f87488f57e9265b |
| Linux | Linux | 5.15.145 |
| Linux | Linux | 6.1.29 |
| Linux | Linux | 6.2.16 |
| Linux | Linux | 6.3.2 |
| Linux | Linux | 6.4 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
