CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се от съседна мрежа, 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: thunderbolt: Fix frags[] overflow by bounding frame_count tbnet_poll() assembles a multi-frame ThunderboltIP packet into one skb. The first frame goes into the skb linear area and every further frame is added as a page fragment. skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, hdr_size, frame_size, TBNET_RX_PAGE_SIZE - hdr_size); A packet of frame_count frames therefore ends up with frame_count - 1 fragments. tbnet_check_frame() only bounds the peer supplied frame_count to TBNET_RING_SIZE / 4 (64), which is far above MAX_SKB_FRAGS (17 by default). A peer that sends a packet of 19 or more small frames pushes nr_frags past MAX_SKB_FRAGS, so skb_add_rx_frag() writes past skb_shinfo()->frags[] and corrupts memory after the shared info. Tighten the start of packet bound to MAX_SKB_FRAGS + 1 so a packet can never produce more fragments than frags[] can hold. This matches the recent skb frags overflow fixes in other receive paths, for example f0813bcd2d9d ("net: wwan: t7xx: fix potential skb->frags overflow in RX path") and 600dc40554dc ("net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()").
Засегнати продукти
- Linux Linux: e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди f96b3b35c622d565eff2438993e028d280163f5c; e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди 6262f51e09d8dc8b07599a9e4f03bd3989d13fff; e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди 569ba39b2d12995a29dc158e5b4de6e449278f30; e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди 2b3b4e5ff5a58ad32817824b0310e63908b12052; e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди e27beb4536cbf1d59e2d8c2840e87d972aba906f; e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди e5824d5b841d99a2bcdd4e2c256643293bbc22c1; e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди fe6b606fbf0c3beb94ccf17fcf31d8c2138264e3; e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e преди 55d9895f89970501fe126d1026b586b04a224c27
- Linux Linux: 4.15; преди 4.15; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.184 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-72157
- https://nvd.nist.gov/vuln/detail/CVE-2026-72157
- https://git.kernel.org/stable/c/f96b3b35c622d565eff2438993e028d280163f5c
- https://git.kernel.org/stable/c/6262f51e09d8dc8b07599a9e4f03bd3989d13fff
- https://git.kernel.org/stable/c/569ba39b2d12995a29dc158e5b4de6e449278f30
- https://git.kernel.org/stable/c/2b3b4e5ff5a58ad32817824b0310e63908b12052
- https://git.kernel.org/stable/c/e27beb4536cbf1d59e2d8c2840e87d972aba906f
- https://git.kernel.org/stable/c/e5824d5b841d99a2bcdd4e2c256643293bbc22c1
- https://git.kernel.org/stable/c/fe6b606fbf0c3beb94ccf17fcf31d8c2138264e3
- https://git.kernel.org/stable/c/55d9895f89970501fe126d1026b586b04a224c27