{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-46214", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.105Z", "datePublished": "2026-05-28T09:40:31.245Z", "dateUpdated": "2026-10-15T01:21:19.627Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T18:03:15.809Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: fix accept queue count leak on transport mismatch\n\nvirtio_transport_recv_listen() calls sk_acceptq_added() before\nvsock_assign_transport(). If vsock_assign_transport() fails or\nselects a different transport, the error path returns without\ncalling sk_acceptq_removed(), permanently incrementing\nsk_ack_backlog.\n\nAfter approximately backlog+1 such failures, sk_acceptq_is_full()\nreturns true, causing the listener to reject all new connections.\n\nFix by moving sk_acceptq_added() to after the transport validation,\nmatching the pattern used by vmci_transport and hyperv_transport." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/vmw_vsock/virtio_transport_common.c" ], "versions": [ { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f", "status": "affected", "versionType": "git" }, { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "fd51e810affa38d735d04261e673b2a5fe9c8665", "status": "affected", "versionType": "git" }, { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "f66c7904fb6f0e420a654bc90909e64a25d00896", "status": "affected", "versionType": "git" }, { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "65c484726e74013a2ec7ba67a34d87760ae8f390", "status": "affected", "versionType": "git" }, { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "29371f3cc83e2a92265b4768014a30b80234112f", "status": "affected", "versionType": "git" }, { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "e9edf9893cf26d060705c910a9b62d8cc96ed56a", "status": "affected", "versionType": "git" }, { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "6d3275fc4ed968938e1d556c344798046776668d", "status": "affected", "versionType": "git" }, { "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a", "lessThan": "52bcb57a4e8a0865a76c587c2451906342ae1b2d", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/vmw_vsock/virtio_transport_common.c" ], "versions": [ { "version": "5.5", "status": "affected" }, { "version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.90", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.32", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.9", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.209" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.175" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.6.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.12.90" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.18.32" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.0.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f" }, { "url": "https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665" }, { "url": "https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896" }, { "url": "https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390" }, { "url": "https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f" }, { "url": "https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a" }, { "url": "https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d" }, { "url": "https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d" } ], "title": "vsock/virtio: fix accept queue count leak on transport mismatch", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:21:19.627Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html" } ] } ] } }