NULL pointer dereference in Linux kernel - CVE-2022-49798
Published: May 2, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU108280
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2022-49798
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the eprobe_trigger_func() function in kernel/trace/trace_eprobe.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-49798
Install update from vendor's website.
Linux kernel - addressed in versions 5.15.80, 6.0.10, 6.1
External References
- https://git.kernel.org/stable/c/7291dec4f2d17a2d3fd1f789fb41e58476539f21
- https://git.kernel.org/stable/c/73f5191467ffe3af82f27fe0ea6a8c2fac724d3f
- https://git.kernel.org/stable/c/94eedf3dded5fb472ce97bfaf3ac1c6c29c35d26
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.80
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1