CVE-2026-46214
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-28
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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.
Affected Software (10)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < fd51e810affa38d735d04261e673b2a5fe9c8665 |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < f66c7904fb6f0e420a654bc90909e64a25d00896 |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 65c484726e74013a2ec7ba67a34d87760ae8f390 |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 29371f3cc83e2a92265b4768014a30b80234112f |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < e9edf9893cf26d060705c910a9b62d8cc96ed56a |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 6d3275fc4ed968938e1d556c344798046776668d |
| Linux | Linux | c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 52bcb57a4e8a0865a76c587c2451906342ae1b2d |
| Linux | Linux | 5.5 |
| linux | linux_kernel | 5.5 – 5.10.258 |