Detections
Analytics
CVE-2023-3866
high
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in the compound request This patch validate session id and tree id in compound request. If first operation in the compound is SMB2 ECHO request, ksmbd bypass session and tree validation. So work->sess and work->tcon could be NULL. If secound request in the compound access work->sess or tcon, It cause NULL pointer dereferecing error.
References
https://git.kernel.org/stable/c/eb947403518ea3d93f6d89264bb1f5416bb0c7d0
https://git.kernel.org/stable/c/d1066c1b3663401cd23c0d6e60cdae750ce00c0f
https://git.kernel.org/stable/c/854156d12caa9d36de1cf5f084591c7686cc8a9d
https://git.kernel.org/stable/c/5005bcb4219156f1bf7587b185080ec1da08518e