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: packet: use consistent hard_header_len in TX_RING send path tpacket_snd() reads dev->hard_header_len independently for skb allocation and header construction in tpacket_fill_skb(). Concurrent netdevice reconfiguration can therefore make the reserved headroom smaller than the amount later pushed, or make copylen - hard_header_len negative. Snapshot hard_header_len once before processing ring frames and use it for the frame limit, headroom allocation, copy length, and skb construction. Pass the snapshot to tpacket_fill_skb(). The separate SOCK_DGRAM consistency problem between hard_header_len and header_ops->create is not addressed here.
Засегнати продукти
- Linux Linux: 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди 9c7e8ff48c377bef18c3d178748aea0575b69ede; 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди 2a73b2c37ee3060a880b53cd24783d93fc7be5f8; 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди e79f59a8527a49078cfaf8fe8fb5fcefc20c76d2; 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди d85d2fd54e901637c81d847811e03c662aee13cd; 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди 016763e829cac37b3234eace86fd0a4c560de4a7; 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди 27e068d1b35dbec10a3cf268887c94407be4badc; 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди d48ea5c9c4c34dc0df621f0e39ed3a16b644621a; 69e3c75f4d541a6eb151b3ef91f34033cb3ad6e1 преди 21b5953e7494c16a42e6cd8cf110e18d13ae4a6b
- Linux Linux: 2.6.31; преди 2.6.31; 5.10.267 до 5.10.*; 5.15.218 до 5.15.*; 6.1.185 до 6.1.*; 6.6.152 до 6.6.*; 6.12.104 до 6.12.*; 6.18.45 до 6.18.*; 7.1.9 до 7.1.*; 7.2 до *
История
- 22 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-74668
- https://nvd.nist.gov/vuln/detail/CVE-2026-74668
- https://git.kernel.org/stable/c/9c7e8ff48c377bef18c3d178748aea0575b69ede
- https://git.kernel.org/stable/c/2a73b2c37ee3060a880b53cd24783d93fc7be5f8
- https://git.kernel.org/stable/c/e79f59a8527a49078cfaf8fe8fb5fcefc20c76d2
- https://git.kernel.org/stable/c/d85d2fd54e901637c81d847811e03c662aee13cd
- https://git.kernel.org/stable/c/016763e829cac37b3234eace86fd0a4c560de4a7
- https://git.kernel.org/stable/c/27e068d1b35dbec10a3cf268887c94407be4badc
- https://git.kernel.org/stable/c/d48ea5c9c4c34dc0df621f0e39ed3a16b644621a
- https://git.kernel.org/stable/c/21b5953e7494c16a42e6cd8cf110e18d13ae4a6b