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 може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: xdp: reject clones that overrun skb_shared_info tailroom xdpf_clone() clones broadcast copies into a single page and sets frame_sz to PAGE_SIZE. __xdp_build_skb_from_frame() later treats that page like a normal XDP frame and expects the usual skb_shared_info tailroom at the end of the buffer. The current check only rejects frames whose linear xdp_frame header, headroom, and packet data exceed PAGE_SIZE. A source frame backed by a larger allocation can still satisfy that check while extending into the clone's required shared-info area. When such a clone is converted back into an skb, build_skb_around() places skb_shared_info over live packet bytes and later writes can corrupt XDP return metadata. Reject clones unless their linear area fits inside SKB_WITH_OVERHEAD(PAGE_SIZE), matching the tailroom requirement already enforced by the XDP-to-skb conversion path.
Засегнати продукти
- Linux Linux: e624d4ed4aa8cc3c69d1359b0aaea539203ed266 преди 58408982fa39f9758124cec169f42854d6f98f35; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 преди 685edea27ac68d08fe4dbd3de74b858d2ad8e830; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 преди ba13763d667e008e185fedf592d53846a5b457d1; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 преди ef4b7c7046d29a67090de15af0da0d1ae8d1b192; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 преди fab820f1691a9e26d9031f18aae1e9ce09078f92; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 преди f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 преди e48e8edbef2eb824201495daa5234560f632b23c
- Linux Linux: 5.14; преди 5.14; 5.15.216 до 5.15.*; 6.1.183 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.*; от 7.2 нататък
История
- 22 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-74616
- https://nvd.nist.gov/vuln/detail/CVE-2026-74616
- https://git.kernel.org/stable/c/58408982fa39f9758124cec169f42854d6f98f35
- https://git.kernel.org/stable/c/685edea27ac68d08fe4dbd3de74b858d2ad8e830
- https://git.kernel.org/stable/c/ba13763d667e008e185fedf592d53846a5b457d1
- https://git.kernel.org/stable/c/ef4b7c7046d29a67090de15af0da0d1ae8d1b192
- https://git.kernel.org/stable/c/fab820f1691a9e26d9031f18aae1e9ce09078f92
- https://git.kernel.org/stable/c/f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0
- https://git.kernel.org/stable/c/e48e8edbef2eb824201495daa5234560f632b23c