Race condition in Linux kernel - CVE-2026-72075
Published: August 16, 2026
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a race condition in the ims_pcu_reset_device() sysfs callback when handling concurrent reset_device sysfs requests and other commands. A local user can trigger concurrent sysfs operations to cause a denial of service.
The issue can corrupt a shared command buffer during concurrent access.
Affected software
Ubuntu
linux-gcp-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
How to mitigate CVE-2026-72075
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/025955847e1500ced4719ac178beff6a3b2f0e3c
- https://git.kernel.org/stable/c/0fb84b1a3cdc74c453abc5f961c7d318c267ea4c
- https://git.kernel.org/stable/c/129187ec3f868829f61f6f07381ca72fe642d0b7
- https://git.kernel.org/stable/c/411b8c4b274737c3bf08e1e025801161603cfffc
- https://git.kernel.org/stable/c/54c2237fc69541c75fe4cd321622ebb8ecc3587f
- https://git.kernel.org/stable/c/f516cba88bf952d847e5c96d0e87f17eaae7ee6f