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 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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23096.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23096