Описание
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
startis issued viaioctl
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.
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
startis issued viaioctl
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.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2026-23063
- https://git.kernel.org/stable/c/26c08dabe5475d99a13f353d8dd70e518de45663
- https://git.kernel.org/stable/c/336fb41a186e7c0415ae94fec9e23d1f04b87483
- https://git.kernel.org/stable/c/43f233eb6e7b9d88536881a9bc43726d0e34800d
- https://git.kernel.org/stable/c/47634d70073890c9c37e39ab4ff93d4b585b028a
- https://git.kernel.org/stable/c/8b57bf1d3b1db692f34bce694a03e41be79f6016
- https://git.kernel.org/stable/c/92e4f11e29b98ef424ff72d6371acac03e5d973c
- https://git.kernel.org/stable/c/b457abeb5d962db88aaf60e249402fd3073dbfab
EPSS
CVE ID
Связанные уязвимости
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.
In the Linux kernel, the following vulnerability has been resolved: u ...
EPSS