#VU108262 NULL pointer dereference in Linux kernel - CVE-2022-49796
Published: May 2, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU108262
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49796
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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