CVE-2026-63977
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/07/2026
Last modified:
20/07/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
dpll: zl3073x: use __dpll_device_change_ntf() and remove change_work<br />
<br />
The change_work was introduced to send device change notifications<br />
from DPLL device callbacks without deadlocking on dpll_lock, since<br />
the callbacks are already invoked under that lock. Now that<br />
__dpll_device_change_ntf() is exported for callers that already<br />
hold dpll_lock, use it directly and remove the change_work<br />
infrastructure entirely.<br />
<br />
This eliminates a race condition where change_work could be<br />
re-scheduled after cancel_work_sync() during device teardown,<br />
potentially causing the handler to dereference a freed or NULL<br />
dpll_dev pointer.
Impact
Base Score 3.x
7.80
Severity 3.x
HIGH