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.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: net: ena: PHC: Fix potential use-after-free in get_timestamp Move the phc->active check and resp pointer assignment to after acquiring the spinlock. Previously, phc->active was checked without holding the lock, and resp was cached from ena_dev->phc.virt_addr before the lock was acquired. If ena_com_phc_destroy() runs between the lockless active check and the lock acquisition, it sets active=false, releases the lock, frees the DMA memory, and sets virt_addr=NULL. The get_timestamp path would then read a NULL virt_addr and dereference it. With both the active check and the pointer read under the lock, destroy cannot free the memory while get_timestamp is using it.
Засегнати продукти
- Linux Linux: e0ea34158ee8c4f7536cd781010339ff28c0d24c преди 95e8ae9af2a61b4e72f5c585bf4c7d8aaf2a2c98; e0ea34158ee8c4f7536cd781010339ff28c0d24c преди ca9ed40f28949353911dcb524ff8fff2f3409c97; e0ea34158ee8c4f7536cd781010339ff28c0d24c преди e42c755582f0960e684298762f0ab927b3778376
- Linux Linux: 6.17; преди 6.17; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; от 7.1 нататък
Вид слабост
История
- 24 юни 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-52971
- https://nvd.nist.gov/vuln/detail/CVE-2026-52971
- https://git.kernel.org/stable/c/95e8ae9af2a61b4e72f5c585bf4c7d8aaf2a2c98
- https://git.kernel.org/stable/c/ca9ed40f28949353911dcb524ff8fff2f3409c97
- https://git.kernel.org/stable/c/e42c755582f0960e684298762f0ab927b3778376