SB20250226446 - NULL pointer dereference in Linux kernel arm64 kernel
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226446
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-2022-49090)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the secondary_start_kernel() function in arch/arm64/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/5524cbb1bfcdff0cad0aaa9f94e6092002a07259
- https://git.kernel.org/stable/c/790c1567582bda8f1153015436e3330a7c6eb278
- https://git.kernel.org/stable/c/87f5d66daa5f457449bb95d6b8d18bb7596aa627
- https://git.kernel.org/stable/c/c78a1b2d0bff678570c8dc9f14035606f5e5257d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3