CVE-2026-43447

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> iavf: fix PTP use-after-free during reset<br /> <br /> Commit 7c01dbfc8a1c5f ("iavf: periodically cache PHC time") introduced a<br /> worker to cache PHC time, but failed to stop it during reset or disable.<br /> <br /> This creates a race condition where `iavf_reset_task()` or<br /> `iavf_disable_vf()` free adapter resources (AQ) while the worker is still<br /> running. If the worker triggers `iavf_queue_ptp_cmd()` during teardown, it<br /> accesses freed memory/locks, leading to a crash.<br /> <br /> Fix this by calling `iavf_ptp_release()` before tearing down the adapter.<br /> This ensures `ptp_clock_unregister()` synchronously cancels the worker and<br /> cleans up the chardev before the backing resources are destroyed.