SB2026050988 - Improper Initialization in Linux kernel drm v3d driver
Published: May 9, 2026
Security Bulletin ID
SB2026050988
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Initialization (CVE-ID: CVE-2026-43302)
CWE-ID: CWE-665 - Improper Initialization
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper initialization in the v3d DRM driver DMA mapping configuration when creating V3D buffer objects through ioctl handling. A local user can issue crafted V3D buffer creation requests to cause a denial of service.
The issue is observable when DMA API debugging is enabled.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0290934d30abe7c88e18140fd5184c3f386b1e44
- https://git.kernel.org/stable/c/14d0d6c8b4504a60cfeea74775ab2e0164019e65
- https://git.kernel.org/stable/c/225023e3619b81af6d8d0e680503fc2d68633023
- https://git.kernel.org/stable/c/2663ef70c6123b2232190f917275e5c3175f97d0
- https://git.kernel.org/stable/c/9eb018828b1b30dfba689c060735c50fc5b9f704
- https://git.kernel.org/stable/c/cf510785f74e74c54de40a43a955b7f844857487
- https://git.kernel.org/stable/c/db15f469a88d3bbeeaa9f8c9f5e74d856ba5d7d2