CVE-2026-23063
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 015d239ac0142ad0e26567fd890ef8d171f13709 < b457abeb5d962db88aaf60e249402fd3073dbfab | affected |
| Linux | Linux | 015d239ac0142ad0e26567fd890ef8d171f13709 < 8b57bf1d3b1db692f34bce694a03e41be79f6016 | affected |
| Linux | Linux | 015d239ac0142ad0e26567fd890ef8d171f13709 < 336fb41a186e7c0415ae94fec9e23d1f04b87483 | affected |
| Linux | Linux | 015d239ac0142ad0e26567fd890ef8d171f13709 < 43f233eb6e7b9d88536881a9bc43726d0e34800d | affected |
| Linux | Linux | 015d239ac0142ad0e26567fd890ef8d171f13709 < 47634d70073890c9c37e39ab4ff93d4b585b028a | affected |
| Linux | Linux | 015d239ac0142ad0e26567fd890ef8d171f13709 < 92e4f11e29b98ef424ff72d6371acac03e5d973c | affected |
| Linux | Linux | 015d239ac0142ad0e26567fd890ef8d171f13709 < 26c08dabe5475d99a13f353d8dd70e518de45663 | affected |
| Linux | Linux | 5.7 | affected |
| Linux | Linux | 0 < 5.7 | unaffected |
| Linux | Linux | 5.10.249 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.199 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.162 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.122 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.68 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.8 <= 6.18.* | unaffected |
| Linux | Linux | 6.19 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b457abeb5d962db88aaf60e249402fd3073dbfab
- https://git.kernel.org/stable/c/8b57bf1d3b1db692f34bce694a03e41be79f6016
- 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/92e4f11e29b98ef424ff72d6371acac03e5d973c
- https://git.kernel.org/stable/c/26c08dabe5475d99a13f353d8dd70e518de45663
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