Improper resource shutdown or release in Linux kernel - CVE-2026-43298
Published: May 9, 2026
Vulnerability identifier: #VU130893
CSH Severity: Low
CVSS v4: 4.8 [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]
CVE-ID: CVE-2026-43298
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource management in the VCN poison irq release logic in the amdgpu driver when deinitializing a virtual function. A local user can trigger device deinitialization to cause a denial of service.
The issue occurs on VF configurations because VCN poison irq is not enabled in VCNv2.5.
Affected software
Linux kernel
How to mitigate CVE-2026-43298
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3