SB20240620193 - NULL pointer dereference in Linux kernel probes kprobes
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240620193
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-2021-47618)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the obj-$() function in arch/arm/probes/kprobes/Makefile. 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/1515e72aae803fc6b466adf918e71c4e4c9d5b3d
- https://git.kernel.org/stable/c/ba1863be105b06e10d0e2f6b1b8a0570801cfc71
- https://git.kernel.org/stable/c/8b59b0a53c840921b625378f137e88adfa87647e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17