#VU116529 Out-of-bounds read in Linux kernel - CVE-2022-50490
Published: October 5, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116529
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-2022-50490
CWE-ID: CWE-125
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 an out-of-bounds read error within the __htab_map_lookup_and_delete_batch() function in kernel/bpf/hashtab.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3
- https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
- https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280
- https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17