#VU104548 NULL pointer dereference in Linux kernel - CVE-2022-49271
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104548
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-2022-49271
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 smb2_ioctl_query_info() function in fs/cifs/smb2ops.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/7529fbee10d82493c5cb109e51788bf74816d1c0
- https://git.kernel.org/stable/c/9963ccea6087268e1275b992dca5d0dd4b938765
- https://git.kernel.org/stable/c/b92e358757b91c2827af112cae9af513f26a3f34
- https://git.kernel.org/stable/c/f143f8334fb9eb2f6c7c15b9da1472d9c965fd84
- https://git.kernel.org/stable/c/fadddfc1dc3c6f79b21cff4a7e9a6c40b84fbc53
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.19