SB2024071762 - NULL pointer dereference in Linux kernel dsa
Published: July 17, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071762
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-2022-48808)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the EXPORT_SYMBOL_GPL() and dsa_switch_shutdown() functions in net/dsa/dsa2.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/ff45899e732e57088985e3a497b1d9100571c0f5
- https://git.kernel.org/stable/c/89b60402d43cdab4387dbbf24afebda5cf092ae7
- https://git.kernel.org/stable/c/ee534378f00561207656663d93907583958339ae
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.155
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17