CVSS
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
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Време до експлоатация
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix usage of page_frag_cache nvme uses page_frag_cache to preallocate PDU for each preallocated request of block device. Block devices are created in parallel threads, consequently page_frag_cache is used in not thread-safe manner. That leads to incorrect refcounting of backstore pages and premature free. That can be catched by !sendpage_ok inside network stack: WARNING: CPU: 7 PID: 467 at ../net/core/skbuff.c:6931 skb_splice_from_iter+0xfa/0x310. tcp_sendmsg_locked+0x782/0xce0 tcp_sendmsg+0x27/0x40 sock_sendmsg+0x8b/0xa0 nvme_tcp_try_send_cmd_pdu+0x149/0x2a0 Then random panic may occur. Fix that by serializing the usage of page_frag_cache.
Засегнати продукти
- Linux Linux: 4e893ca8117022de68ce1b61c0309e3d17bb8a25 преди d19f98c79f1b7e09e4cdf5c20d626e571e487467; 4e893ca8117022de68ce1b61c0309e3d17bb8a25 преди 64561afb42d8390695bf810d9bbd087cbca00291; 4e893ca8117022de68ce1b61c0309e3d17bb8a25 преди 0a9750263ffacbbd2048a391fd4bd22e2146c57d; 4e893ca8117022de68ce1b61c0309e3d17bb8a25 преди 6e4cf281558709b92ec2ca3054fe2ffc69266ef9; 4e893ca8117022de68ce1b61c0309e3d17bb8a25 преди 36ac05f7cfd59d90c597071304b14e98090d5dd1; c57506918b078ecab7dedebef0f34dbc23ae2e46; 6.6.160 преди 6.7
- Linux Linux: 6.12; преди 6.12; 6.12.108 до 6.12.*; 6.18.49 до 6.18.*; 7.1.13 до 7.1.*; 7.2.3 до 7.2.*; 7.3 до *
История
- 4 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-80862
- https://nvd.nist.gov/vuln/detail/CVE-2026-80862
- https://git.kernel.org/stable/c/d19f98c79f1b7e09e4cdf5c20d626e571e487467
- https://git.kernel.org/stable/c/64561afb42d8390695bf810d9bbd087cbca00291
- https://git.kernel.org/stable/c/0a9750263ffacbbd2048a391fd4bd22e2146c57d
- https://git.kernel.org/stable/c/6e4cf281558709b92ec2ca3054fe2ffc69266ef9
- https://git.kernel.org/stable/c/36ac05f7cfd59d90c597071304b14e98090d5dd1