Division by zero in Linux kernel - CVE-2026-43182
Published: May 7, 2026
Vulnerability identifier: #VU130558
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-2026-43182
CWE-ID: CWE-369
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 improper input validation in the ccs driver scaler configuration logic when calculating the maximum M value using the MIN_X_OUTPUT_SIZE limit register value. A local user can trigger the vulnerable calculation to cause a denial of service.
How to mitigate CVE-2026-43182
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/32a21ed2ad743fe2d12af48e627089b921a032c2
- https://git.kernel.org/stable/c/679f0b7b6a409750a25754c8833e268e5fdde742
- https://git.kernel.org/stable/c/8ca7df18e7a58a0e5b0ed9eaaa34e16fc5cb9680
- https://git.kernel.org/stable/c/9aae0f31d37a8facd25e37c0f0709ea08de83802
- https://git.kernel.org/stable/c/a8ff58cc8c7514c278ba0ea2c787d4bf9eeb355d
- https://git.kernel.org/stable/c/b6e0529c300e44153fc6f3b565e28163caf1f031
- https://git.kernel.org/stable/c/c9af1818387f5c6f543e2e02c40b3038eae86be8