CVE-2026-23096: uacce: fix cdev handling in the cleanup path
In the Linux kernel, the following vulnerability has been resolved:
uacce: fix cdev handling in the cleanup path
When cdevdeviceadd fails, it internally releases the cdev memory, and if cdevdevicedel is then executed, it will cause a hang error. To fix it, we check the return value of cdevdeviceadd() and clear uacce->cdev to avoid calling cdevdevicedel in the uacceremove.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-23096?
CVE-2026-23096 is classified as a medium severity vulnerability in the Linux Kernel.
How do I fix CVE-2026-23096?
To fix CVE-2026-23096, update the Linux Kernel to the latest stable version that includes the patch addressing this vulnerability.
What are the potential impacts of CVE-2026-23096?
The potential impacts of CVE-2026-23096 include system hangs and instability when executing cdev_device_del after a cdev_device_add failure.
Which Linux Kernel versions are affected by CVE-2026-23096?
CVE-2026-23096 affects multiple versions of the Linux Kernel before the patch was applied.
Is CVE-2026-23096 exploitable remotely?
CVE-2026-23096 does not appear to have a remote exploitation vector, as it typically requires local access to trigger the vulnerability.