CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без 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: rswitch: Avoid use-after-free in rswitch_poll() The use-after-free is actually in rswitch_tx_free(), which is inlined in rswitch_poll(). Since `skb` and `gq->skbs[gq->dirty]` are in fact the same pointer, the skb is first freed using dev_kfree_skb_any(), then the value in skb->len is used to update the interface statistics. Let's move around the instructions to use skb->len before the skb is freed. This bug is trivial to reproduce using KFENCE. It will trigger a splat every few packets. A simple ARP request or ICMP echo request is enough.
Засегнати продукти
- Linux Linux: 0aeec4bb6a9fc963932bf3c929bdf27d835d44e9 преди 4a41bb9f2b402469d425a1c13359d3b3ea4e6403; 271e015b91535dd87fd0f5df0cc3b906c2eddef9 преди 92cbbe7759193e3418f38d0d73f8fe125312c58b; 271e015b91535dd87fd0f5df0cc3b906c2eddef9 преди 9a0c28efeec6383ef22e97437616b920e7320b67
- Linux Linux: 6.8; преди 6.8; 6.9.9 до 6.9.*; от 6.10 нататък
История
- 30 юли 2024 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2024-42108
- https://nvd.nist.gov/vuln/detail/CVE-2024-42108
- https://git.kernel.org/stable/c/4a41bb9f2b402469d425a1c13359d3b3ea4e6403
- https://git.kernel.org/stable/c/92cbbe7759193e3418f38d0d73f8fe125312c58b
- https://git.kernel.org/stable/c/9a0c28efeec6383ef22e97437616b920e7320b67