CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: iavf: fix PTP use-after-free during reset Commit 7c01dbfc8a1c5f ("iavf: periodically cache PHC time") introduced a worker to cache PHC time, but failed to stop it during reset or disable. This creates a race condition where `iavf_reset_task()` or `iavf_disable_vf()` free adapter resources (AQ) while the worker is still running. If the worker triggers `iavf_queue_ptp_cmd()` during teardown, it accesses freed memory/locks, leading to a crash. Fix this by calling `iavf_ptp_release()` before tearing down the adapter. This ensures `ptp_clock_unregister()` synchronously cancels the worker and cleans up the chardev before the backing resources are destroyed.
Засегнати продукти
- Linux Linux: 7c01dbfc8a1c5f8b8e4a7907ab06db1449d478d0 преди 1b034f2429ce6b45ce74dc266175d277acafc5c4; 7c01dbfc8a1c5f8b8e4a7907ab06db1449d478d0 преди 90cc8b2add29b57288025b51c70bc647e7cccb12; 7c01dbfc8a1c5f8b8e4a7907ab06db1449d478d0 преди efc54fb13d79117a825fef17364315a58682c7ec
- Linux Linux: 6.15; преди 6.15; 6.18.19 до 6.18.*; 6.19.9 до 6.19.*; от 7.0 нататък
История
- 8 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-43447
- https://nvd.nist.gov/vuln/detail/CVE-2026-43447
- https://git.kernel.org/stable/c/1b034f2429ce6b45ce74dc266175d277acafc5c4
- https://git.kernel.org/stable/c/90cc8b2add29b57288025b51c70bc647e7cccb12
- https://git.kernel.org/stable/c/efc54fb13d79117a825fef17364315a58682c7ec