CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, без вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: tun: free page on short-frame rejection in tun_xdp_one() tun_xdp_one() returns -EINVAL on a frame shorter than ETH_HLEN without freeing the page that vhost_net_build_xdp() allocated for it. tun_sendmsg() discards that -EINVAL and still returns total_len, so vhost_tx_batch() takes the success path and never frees the page; each short frame in a batch leaks one page-frag chunk. A local process that can open /dev/net/tun and /dev/vhost-net can hit this path: it attaches a tun/tap device as the vhost-net backend and feeds TX descriptors whose length minus the virtio-net header is below ETH_HLEN. Each kick leaks the page-frag chunks for that batch, and a tight submission loop exhausts host memory and triggers an OOM panic. Free the page before returning -EINVAL, matching the XDP-program error path in the same function.
Засегнати продукти
- Linux Linux: 6100e0237204890269e3f934acfc50d35fd6f319 преди 0a6f46a9332ad6958992d64d3b3a81a80b2ca940; 589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2 преди 0e8211fcf9426f5adddf32516ba0f400ceb9544d; ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146 преди e915445942af6dcea628bf66d6241641201a0c41; d5ad89b7d01ed4e66fd04734fc63d6e78536692a преди 5b34f9e4fe2f203724a6e893d6df0316b9670057; 049584807f1d797fc3078b68035450a9769eb5c3 преди 69863ff2720a0e9871f1a5710f2a33a94217fee0; 049584807f1d797fc3078b68035450a9769eb5c3 преди 37a1c268c2c8090bf4dc552d732bd23ba36f8eb0; 049584807f1d797fc3078b68035450a9769eb5c3 преди 98c67be9eb9de72465a071949e84a3cdb8fab5a3; 049584807f1d797fc3078b68035450a9769eb5c3 преди f4feb1e20058e407cb00f45aff47f5b7e19a6bbf; 32b0aaba5dbc85816898167d9b5d45a22eae82e9; a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb; 8418f55302fa1d2eeb73e16e345167e545c598a5; 5.10.223 преди 5.10.259; 5.15.164 преди 5.15.210; 6.1.102 преди 6.1.176; 6.6.43 преди 6.6.143; 5.4.281 преди 5.5; 6.9.12 преди 6.10; 6.10.2 преди 6.11
- Linux Linux: 6.11; преди 6.11; 5.10.259 до 5.10.*; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.143 до 6.6.*; 6.12.93 до 6.12.*; 6.18.35 до 6.18.*; 7.0.12 до 7.0.*; от 7.1 нататък
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии
История
- 9 юни 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-46321
- https://nvd.nist.gov/vuln/detail/CVE-2026-46321
- https://git.kernel.org/stable/c/0a6f46a9332ad6958992d64d3b3a81a80b2ca940
- https://git.kernel.org/stable/c/0e8211fcf9426f5adddf32516ba0f400ceb9544d
- https://git.kernel.org/stable/c/e915445942af6dcea628bf66d6241641201a0c41
- https://git.kernel.org/stable/c/5b34f9e4fe2f203724a6e893d6df0316b9670057
- https://git.kernel.org/stable/c/69863ff2720a0e9871f1a5710f2a33a94217fee0
- https://git.kernel.org/stable/c/37a1c268c2c8090bf4dc552d732bd23ba36f8eb0
- https://git.kernel.org/stable/c/98c67be9eb9de72465a071949e84a3cdb8fab5a3
- https://git.kernel.org/stable/c/f4feb1e20058e407cb00f45aff47f5b7e19a6bbf
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html