Out-of-bounds read in Linux kernel - CVE-2026-46199
Published: May 29, 2026
Vulnerability identifier: #VU132995
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46199
CWE-ID: CWE-125
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 disclose sensitive information.
The vulnerability exists due to out-of-bounds read in the drm/amdgpu vcn4 decoder message parser when parsing a decoder message from a buffer object. A local user can provide a specially crafted decoder message to disclose sensitive information.
How to mitigate CVE-2026-46199
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648
- https://git.kernel.org/stable/c/3c817a60b09eaab926e475088e750936efcc95ae
- https://git.kernel.org/stable/c/63b51e8a9d54317d31cc3856c1e12407070d5fc2
- https://git.kernel.org/stable/c/7688143ca62edeecacb3ba0a2cea129dbd262a18
- https://git.kernel.org/stable/c/c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e