What’s Vulnerable › Vulnerabilities

CVE-2026-23096: uacce: fix cdev handling in the cleanup path

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-04 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: uacce: fix cdev handling in the cleanup path When cdev_device_add fails, it internally releases the cdev memory, and if cdev_device_del is then executed, it will cause a hang error. To fix it, we check the return value of cdev_device_add() and clear uacce->cdev to avoid calling cdev_device_del in the uacce_remove.

Affected products

• Linux kernel: from 5.7 before 5.10.249; from 5.11 before 5.15.199; from 5.16 before 6.1.162; from 6.2 before 6.6.122; from 6.7 before 6.12.68; from 6.13 before 6.18.8 — fixed in 5.10.249, 5.15.199, 6.1.162, 6.12.68, 6.18.8, 6.6.122

How to fix

Upgrade to a fixed version: Linux kernel 5.10.249, 5.15.199, 6.1.162, 6.12.68. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1bc3e51367c420e6db31f41efa874c7a8e12194a
• https://git.kernel.org/stable/c/819d647406200d0e83e56fd2df8f451b11290559
• https://git.kernel.org/stable/c/98d67a1bd6caddd0a8b8c82a0b925742cf500936
• https://git.kernel.org/stable/c/a3bece3678f6c88db1f44c602b2a63e84b4040ac
• https://git.kernel.org/stable/c/bd2393ed7712513e7e2dbcb6e21464a67ff9e702
• https://git.kernel.org/stable/c/c94c7188d325bc5137d447d67a2f18f7d4f2f4a3
• https://git.kernel.org/stable/c/d9031575a2f8aabc53af3025dd79af313a2e046b

Get alerted when CVE-2026-23096 or the next vulnerability affects your stack