Operation on a Resource after Expiration or Release in Linux kernel - CVE-2026-68371
Published: August 12, 2026
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper reference count handling in the omap2430_probe() function when probing the omap2430 USB MUSB platform device. A local user can trigger the driver probe to cause a denial of service.
The issue can leave pdev->dev.of_node with an unbalanced reference count because a borrowed device tree node pointer is released incorrectly.
Affected software
Ubuntu
linux-gcp-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
How to mitigate CVE-2026-68371
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/0950ac52426b0ab32d3b8cf4afe1711668b19cb8
- https://git.kernel.org/stable/c/58d1c81c0b54a0b9aa6d6af077b09aa2f1bd2193
- https://git.kernel.org/stable/c/6c525c851e5912b9753622d796f2bc55c4913b04
- https://git.kernel.org/stable/c/c947360ae63eee1c9eacc030dd6f5a53f717addf
- https://git.kernel.org/stable/c/eed56f105a7f70cbcfceb4df6deb6870fc58214d