#VU114931 NULL pointer dereference in Linux kernel - CVE-2025-39692
Published: September 8, 2025
Vulnerability identifier: #VU114931
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39692
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ksmbd_rdma_init() and ksmbd_rdma_destroy() functions in fs/smb/server/transport_rdma.c, within the ksmbd_conn_transport_destroy() function in fs/smb/server/connection.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/003e6a3150299f681f34cb189aa068018cef6a45
- https://git.kernel.org/stable/c/212eb86f75b4d7b82f3d94aed95ba61103bccb93
- https://git.kernel.org/stable/c/524e90e58a267dad11e23351d9e4b1f941490976
- https://git.kernel.org/stable/c/bac7b996d42e458a94578f4227795a0d4deef6fa
- https://git.kernel.org/stable/c/e41e33400516702427603f8fbbec43c91ede09c0