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/packet: avoid fanout hook re-registration after unregister packet_set_ring() temporarily detaches a socket from packet delivery while reconfiguring its ring. It records the previous running state, clears po->num, unregisters the protocol hook when needed, drops po->bind_lock, and later restores po->num and re-registers the hook from the saved was_running value. That unlocked window can race with NETDEV_UNREGISTER. The notifier can observe the socket as not running, skip __unregister_prot_hook(), and invalidate the per-socket binding by setting po->ifindex to -1 and clearing po->prot_hook.dev. A one-member fanout group can still retain its shared fanout hook device pointer. When packet_set_ring() resumes, re-registering solely from the stale was_running state can re-add the fanout hook after the device has been unregistered. Treat po->ifindex == -1 as an invalidated binding after reacquiring po->bind_lock. This is distinct from ifindex 0, the normal unbound/wildcard state: ifindex -1 marks an existing device binding that was invalidated when the device was unregistered. Restore po->num as before, but do not re-register the hook if device unregister already detached the socket.
Засегнати продукти
- Linux Linux: dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди acb40ebfa5c4d62f84339fcbf713f2a9fd033a71; dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди c820f4b7f2fa38f8769db0d0cefdd94e2721504d; dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди 4628efbdc7affd094181f5263e65c1062e31f15f; dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди 80ec024d53a05c60ad1d08968dcf745f10c1665c; dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди 0a052e0808e015e68144a9877e6ef42b952c49fa; dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди 1bc55c29cd85818e9052f17deb287d5a11fb817f; dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди a885387dae7986a55bae5c77a15bdd447f64e9b9; dc99f600698dcac69b8f56dda9a8a00d645c5ffc преди 50aff80475abd3533eef4320477037e6fcc6b56e
- Linux Linux: 3.1; преди 3.1; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък
Вид слабост
История
- 10 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-68338
- https://nvd.nist.gov/vuln/detail/CVE-2026-68338
- https://git.kernel.org/stable/c/acb40ebfa5c4d62f84339fcbf713f2a9fd033a71
- https://git.kernel.org/stable/c/c820f4b7f2fa38f8769db0d0cefdd94e2721504d
- https://git.kernel.org/stable/c/4628efbdc7affd094181f5263e65c1062e31f15f
- https://git.kernel.org/stable/c/80ec024d53a05c60ad1d08968dcf745f10c1665c
- https://git.kernel.org/stable/c/0a052e0808e015e68144a9877e6ef42b952c49fa
- https://git.kernel.org/stable/c/1bc55c29cd85818e9052f17deb287d5a11fb817f
- https://git.kernel.org/stable/c/a885387dae7986a55bae5c77a15bdd447f64e9b9
- https://git.kernel.org/stable/c/50aff80475abd3533eef4320477037e6fcc6b56e