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DEBIAN-CVE-2026-23063
No affected components available
In the Linux kernel, the following vulnerability has been resolved: uacce: ensure safe queue release with state management Directly calling put_queue carries risks since it cannot guarantee that resources of uacce_queue have been fully released beforehand. So adding a stop_queue operation for the UACCE_CMD_PUT_Q command and leaving the put_queue operation to the final resource release ensures safety. Queue states are defined as follows: - UACCE_Q_ZOMBIE: Initial state - UACCE_Q_INIT: After opening uacce - UACCE_Q_STARTED: After start is issued via ioctl When executing poweroff -f in virt while accelerator are still working, uacce_fops_release and uacce_remove may execute concurrently. This can cause uacce_put_queue within uacce_fops_release to access a NULL ops pointer. Therefore, add state checks to prevent accessing freed pointers.
The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
- CVE-2026-23063Upstream
- EUVD-2026-5481Upstream
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