CVE-2026-46214

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-46214
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f Patch
https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f Patch
https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d Patch
https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390 Patch
https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d Patch
https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a Patch
https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896 Patch
https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

10 Jun 2026, 19:16

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f - () https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f - Patch
References () https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f - () https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f - Patch
References () https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d - () https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d - Patch
References () https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390 - () https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390 - Patch
References () https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d - () https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d - Patch
References () https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a - () https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a - Patch
References () https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896 - () https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896 - Patch
References () https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665 - () https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665 - Patch
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE NVD-CWE-Other
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

01 Jun 2026, 17:17

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f -
  • () https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896 -
  • () https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665 -

28 May 2026, 10:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-28 10:16

Updated : 2026-06-10 19:16

NVD link : CVE-2026-46214

Mitre link : CVE-2026-46214

CVE.ORG link : CVE-2026-46214

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other