SB20250619220 - NULL pointer dereference in Linux kernel
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619220
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-2022-50091)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the csdlock_debug() function in kernel/smp.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/05de9e2e33b1625c71aee69e353fe906dd2be88a
- https://git.kernel.org/stable/c/9c9b26b0df270d4f9246e483a44686fca951a29c
- https://git.kernel.org/stable/c/b480d1e9a8c11ecc1c99dc01814b28e3103bd0a0
- https://git.kernel.org/stable/c/d2cbdbe22b5f190055d2d0ae92e7454479343a30
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.61