SB20250226392 - NULL pointer dereference in Linux kernel bcm bcm63xx driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226392
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-2022-49448)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the bcm_pmb_probe() function in drivers/soc/bcm/bcm63xx/bcm-pmb.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/36339ea7bae4943be01c8e9545e46e334591fecd
- https://git.kernel.org/stable/c/5650e103bfc70156001615861fb8aafb3947da6e
- https://git.kernel.org/stable/c/b48b98743b568bb219152ba2e15af6ef0d3d8a9b
- https://git.kernel.org/stable/c/b4bd2aafacce48db26b0a213d849818d940556dd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19