Stack-based buffer overflow in Linux kernel - CVE-2026-43380
Published: May 9, 2026
Vulnerability identifier: #VU130798
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-2026-43380
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 stack-based buffer overflow in q54sj108a2_debugfs_read when reading debugfs data. A local user can read the debugfs file to cause a denial of service.
How to mitigate CVE-2026-43380
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/24a7b9daa103fa963b3fd37d8805b23e01621976
- https://git.kernel.org/stable/c/25dd70a03b1f5f3aa71e1a5091ecd9cd2a13ee43
- https://git.kernel.org/stable/c/52db5ef163c96f916d424e472fb17aadc35a9f7a
- https://git.kernel.org/stable/c/73a7a345816946d276ad2c46c8bb771de67cfc46
- https://git.kernel.org/stable/c/a0fc1b9c738fba231f190ab960c83202722efee5
- https://git.kernel.org/stable/c/b48a0f8d4541a4f6651dc9a64430ce9fdf5c120b
- https://git.kernel.org/stable/c/c59090c50f62a17129fc4c5407bc4071305a9e82