Improper resource shutdown or release in Linux kernel - CVE-2026-43247

Vulnerability details

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper power state management in the wave5 video decoder driver when queuing video buffers through the V4L2 ioctl interface after an autosuspend timeout triggers suspend mode. A local user can send crafted ioctl requests to trigger a kernel panic and cause a denial of service.

The issue was observed as an asynchronous SError interrupt leading to a kernel panic during decoder buffer queue operations.

Affected software

How to mitigate CVE-2026-43247

External References

• https://git.kernel.org/stable/c/27cb12b7dc88c51582094eeb2b65b0e94603e411
• https://git.kernel.org/stable/c/5da55243fe190c2165ed34e77091a43c0ff74f10
• https://git.kernel.org/stable/c/cbb9c0d50e471483cced55f5b7db4569dcd959a6

Related Security Bulletins

• Improper resource shutdown or release in Linux kernel chips-media wave5 driver