Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-53139
Published: June 26, 2026
Vulnerability identifier: #VU135643
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-2026-53139
CWE-ID: CWE-670
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 handling of zero-valued workgroup counts in v3d compute shader dispatch handling when processing an indirect CSD job. A local user can submit a crafted indirect CSD job with a zeroed workgroup dimension to cause a denial of service.
A zero value in any workgroup dimension is interpreted by the hardware as 65536 instead of a no-op.
How to mitigate CVE-2026-53139
Install security update from vendor's repository.