Description
In the Linux kernel, the following vulnerability has been resolved: smb/server: fix possible refcount leak in smb2_sess_setup() Reference count of ksmbd_session will leak when session need reconnect. Fix this by adding the missing ksmbd_user_session_put().
References5
- git.kernel.org/stable/c/379510a815cb2e64eb0a379cb62295d6ade65df0
- git.kernel.org/stable/c/6fc935f798d44a8eb8a5e6659198399fbf57b981
- git.kernel.org/stable/c/d37b2c81c83d6c0d5ca582f4fe73c672983f9e0d
- git.kernel.org/stable/c/dcc51dfe6ff26b52cac106865a172ac982d78401
- git.kernel.org/stable/c/e671f9bb97805771380c98de944e2ceab6949188
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 39 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.