Memory leak in Linux kernel - CVE-2022-49837
Published: May 2, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU108177
CSH Severity: Low
CVSS v4.0: 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-2022-49837
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the __check_func_call() and prepare_func_exit() functions in kernel/bpf/verifier.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49837
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/83946d772e756734a900ef99dbe0aeda506adf37
- https://git.kernel.org/stable/c/d4944497827a3d14bc5a26dbcfb7433eb5a956c0
- https://git.kernel.org/stable/c/eb86559a691cea5fa63e57a03ec3dc9c31e97955
- 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