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: netfilter: nfnetlink_queue: make hash table per queue Sharing a global hash table among all queues is tempting, but it can cause crash: BUG: KASAN: slab-use-after-free in nfqnl_recv_verdict+0x11ac/0x15e0 [nfnetlink_queue] [..] nfqnl_recv_verdict+0x11ac/0x15e0 [nfnetlink_queue] nfnetlink_rcv_msg+0x46a/0x930 kmem_cache_alloc_node_noprof+0x11e/0x450 struct nf_queue_entry is freed via kfree, but parallel cpu can still encounter such an nf_queue_entry when walking the list. Alternative fix is to free the nf_queue_entry via kfree_rcu() instead, but as we have to alloc/free for each skb this will cause more mem pressure.
Засегнати продукти
- Linux Linux: 371de2bef6582a3f58049b3d18e190924af9c9a0 преди 22730cb96093b5be0609063bbb1923dbecd61252; 870e3e63da8e88daffe9d692a025c711658018a8 преди 41e3652a178cb0eecd48e0e6e27fbb73a004046a; 70e2e3ce4f6841e12ec1c104fc76c0e707398ec4 преди 9e5ebef91120d2764aefe557c3a484b6288f341f; e19079adcd26a25d7d3e586b1837493361fdf8b6 преди 936206e3f6ff411581e615e930263d6f8b78df9d
- Linux Linux: 6.12.75 преди 6.12.83; 6.18.14 преди 6.18.24; 6.19.4 преди 6.19.14
Вид слабост
История
- 6 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-43084
- https://nvd.nist.gov/vuln/detail/CVE-2026-43084
- https://git.kernel.org/stable/c/22730cb96093b5be0609063bbb1923dbecd61252
- https://git.kernel.org/stable/c/41e3652a178cb0eecd48e0e6e27fbb73a004046a
- https://git.kernel.org/stable/c/9e5ebef91120d2764aefe557c3a484b6288f341f
- https://git.kernel.org/stable/c/936206e3f6ff411581e615e930263d6f8b78df9d