Stack-based buffer overflow in Linux kernel - CVE-2026-53022
Published: June 25, 2026
Vulnerability identifier: #VU135343
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-2026-53022
CWE-ID: CWE-121
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 cause a denial of service.
The vulnerability exists due to a stack-based buffer overflow in populate_enum_data() in the dell-wmi-sysman enumeration attribute handler when aggregating firmware-provided enumeration strings. A local user can provide crafted enumeration data to overflow fixed-size destination buffers and cause a denial of service.
The issue affects aggregation of value-modifier and possible-value strings into fixed 512-byte structure members.
How to mitigate CVE-2026-53022
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/3c34471c26abc52a37f5ad90949e2e4b8027eb14
- https://git.kernel.org/stable/c/5a04f9a36930792f6d64e28d43609e158d09b665
- https://git.kernel.org/stable/c/75c738d4f27fa18a2a033de153bd40302bde6a66
- https://git.kernel.org/stable/c/7b3dc1f764bf24eb99474a5de8173b0b43a8b071
- https://git.kernel.org/stable/c/90b118d264845f7aaf539ac49f7c75f1f29590e2
- https://git.kernel.org/stable/c/ba0843c1955864401295f7ba3b420afe19f2266d
- https://git.kernel.org/stable/c/c5683ca4949a514fbe656c6d0d08c4c126e21db9