SB20250502167 - NULL pointer dereference in Linux kernel trace
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502167
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-2022-49796)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the test_gen_kprobe_cmd() and test_gen_kretprobe_cmd() functions in kernel/trace/kprobe_event_gen_test.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/22ea4ca9631eb137e64e5ab899e9c89cb6670959
- https://git.kernel.org/stable/c/28a54854a95923b6266a9479ad660ca2cc0e1d5f
- https://git.kernel.org/stable/c/510c12f93674ea0a1423b24f36c67357168a262a
- https://git.kernel.org/stable/c/e57daa750369fedbf678346aec724a43b9a51749
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.80