Improper locking in Linux kernel - CVE-2026-72007
Published: August 16, 2026
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a timing issue in the imx8m block control power-on sequence for VC8000E when powering up the VC8000E domain. A local user can trigger power up and down cycling to cause a denial of service.
The issue is associated with the i.MX8MP VC8000E and VPU_NOC power down handshake, which may hang during power state cycling.
Affected software
Ubuntu
linux-gcp-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
How to mitigate CVE-2026-72007
linux-gcp-7.0 (Ubuntu package) - addressed in versions 7.0.0-38.38~24.04.4, 7.0.0-1013.13~24.04.1, 7.0.0-1014.14~24.04.1
linux-azure-7.0 (Ubuntu package) - addressed in versions 7.0.0-1016.16~24.04.1, 7.0.0-1017.17~24.04.1
External References
- https://git.kernel.org/stable/c/25e252bcf1593b420b12a7231d9dd64b885a2ae2
- https://git.kernel.org/stable/c/4907f4c2d98b97e640191af5bcf2814ee1034b76
- https://git.kernel.org/stable/c/4ff3960f3527189bc115a927ed3561c758f562f1
- https://git.kernel.org/stable/c/87af3ebc112fb3f06753794390daf0f665f151b4
- https://git.kernel.org/stable/c/c498928f85651b56a4041ea165a22037eae69580