SB20250226366 - NULL pointer dereference in Linux kernel cifs
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226366
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-49271)
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.
References
- 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