CVE-2026-46214: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix accept queue count leak on transport mismatch virtio_transport_recv_listen() calls sk_acceptq_added() before vsock_assign_transport(). If vsock_assign_transport() fails or selects a different transport, the error path returns without calling sk_acceptq_removed(), permanently incrementing sk_ack_backlog. After approximately backlog+1 such failures, sk_acceptq_is_full() returns true, causing the listener to reject all new connections. Fix by moving sk_acceptq_added() to after the transport validation, matching the pattern used by vmci_transport and hyperv_transport.

Засегнати продукти

• Linux Linux: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди 2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f; c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди fd51e810affa38d735d04261e673b2a5fe9c8665; c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди f66c7904fb6f0e420a654bc90909e64a25d00896; c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди 65c484726e74013a2ec7ba67a34d87760ae8f390; c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди 29371f3cc83e2a92265b4768014a30b80234112f; c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди e9edf9893cf26d060705c910a9b62d8cc96ed56a; c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди 6d3275fc4ed968938e1d556c344798046776668d; c0cfa2d8a788fcf45df5bf4070ab2474c88d543a преди 52bcb57a4e8a0865a76c587c2451906342ae1b2d
• Linux Linux: 5.5; преди 5.5; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.140 до 6.6.*; 6.12.90 до 6.12.*; 6.18.32 до 6.18.*; 7.0.9 до 7.0.*; от 7.1 нататък
• Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-46214
• https://nvd.nist.gov/vuln/detail/CVE-2026-46214
• https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f
• https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665
• https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896
• https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390
• https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f
• https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a
• https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d
• https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d
• https://cert-portal.siemens.com/productcert/html/ssa-784472.html