{"api_version":"1","generated_at":"2026-06-02T18:12:34+00:00","cve":"CVE-2026-46214","urls":{"html":"https://cve.report/CVE-2026-46214","api":"https://cve.report/api/cve/CVE-2026-46214.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46214","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46214"},"summary":{"title":"vsock/virtio: fix accept queue count leak on transport mismatch","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:37","updated_at":"2026-06-01 17:17:32"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d","name":"https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f","name":"https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390","name":"https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896","name":"https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d","name":"https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a","name":"https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f","name":"https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665","name":"https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46214","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46214","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c0cfa2d8a788fcf45df5bf4070ab2474c88d543a 2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c0cfa2d8a788fcf45df5bf4070ab2474c88d543a fd51e810affa38d735d04261e673b2a5fe9c8665 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c0cfa2d8a788fcf45df5bf4070ab2474c88d543a f66c7904fb6f0e420a654bc90909e64a25d00896 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c0cfa2d8a788fcf45df5bf4070ab2474c88d543a 65c484726e74013a2ec7ba67a34d87760ae8f390 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.90 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.32 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.9 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46214","cve":"CVE-2026-46214","epss":"0.000180000","percentile":"0.050770000","score_date":"2026-06-01","updated_at":"2026-06-02 00:05:19"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"},{"lessThan":"fd51e810affa38d735d04261e673b2a5fe9c8665","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"},{"lessThan":"f66c7904fb6f0e420a654bc90909e64a25d00896","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"},{"lessThan":"65c484726e74013a2ec7ba67a34d87760ae8f390","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"},{"lessThan":"29371f3cc83e2a92265b4768014a30b80234112f","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"},{"lessThan":"e9edf9893cf26d060705c910a9b62d8cc96ed56a","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"},{"lessThan":"6d3275fc4ed968938e1d556c344798046776668d","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"},{"lessThan":"52bcb57a4e8a0865a76c587c2451906342ae1b2d","status":"affected","version":"c0cfa2d8a788fcf45df5bf4070ab2474c88d543a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.5"},{"lessThan":"5.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.90","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.32","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.90","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.32","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.9","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"5.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-06-01T16:20:08.497Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46214","datePublished":"2026-05-28T09:40:31.245Z","dateReserved":"2026-05-13T15:03:33.105Z","dateUpdated":"2026-06-01T16:20:08.497Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:37","lastModifiedDate":"2026-06-01 17:17:32","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46214","Ordinal":"1","Title":"vsock/virtio: fix accept queue count leak on transport mismatch","CVE":"CVE-2026-46214","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46214","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"vsock/virtio: fix accept queue count leak on transport mismatch"}]}}}