{"id":"CVE-2026-90063","revision":null,"records":[{"revision":"5d9ad024068e46fcb039e31ebb32fb4d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90063","aliases":[],"title":"virtio-net: Ensure that TCP packets don't overflow gso_segs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: Ensure that TCP packets don't overflow gso_segs\n\nThe user can specify any gso_size in a packet crafted with an AF_PACKET\nPACKET_VNET_HDR socket, even smaller than TCP_MIN_GSO_SIZE = 8. At the\nsame time, GSO_MAX_SIZE = 8 * GSO_MAX_SEGS = 8 * 65535. When the user\ncrafts a packet with gso_size < 8, there is a risk for partial GSO to\noverflow the 16-bit gso_segs field when dividing the SKB length by\ngso_size.\n\nAdjust gso_size of TCP packets to be at least TCP_MIN_GSO_SIZE = 8. Keep\ngso_size of UDP GSO packets, as gso_size=1 is valid and explicitly\ntested at tools/testing/selftests/net/tun.c:649.","state":0,"publishedAt":"2026-09-17T16:05:46.968+00:00","modifiedAt":"2026-10-19T08:57:20.621+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/linux/virtio_net.h\"\n ],\n \"versions\": [\n {\n \"version\": \"7c6d2ecbda83150b2036a2b36b21381ad4667762\",\n \"lessThan\": \"d3d111fe809773edbb4ae121e36253b7d683509a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7c6d2ecbda83150b2036a2b36b21381ad4667762\",\n \"lessThan\": \"8f6667a081887c2b59c6f3dd86c1789ada563762\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7c6d2ecbda83150b2036a2b36b21381ad4667762\",\n \"lessThan\": \"339f47ae04dcc6b5a730dd6bc70dddc8937c3260\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7c6d2ecbda83150b2036a2b36b21381ad4667762\",\n \"lessThan\": \"29bd12c7c5f9d6cf855b87bace18f71e9607f9e8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7c6d2ecbda83150b2036a2b36b21381ad4667762\",\n \"lessThan\": \"0e5ed3b98d1d8d251acfdccfeaa607453ad12954\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7c6d2ecbda83150b2036a2b36b21381ad4667762\",\n \"lessThan\": \"75c271c48f483af678e514734e10b2452410e08c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7c6d2ecbda83150b2036a2b36b21381ad4667762\",\n \"lessThan\": \"c27c449d455aafd9018a3cbab150f1c42c87923f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfbaf151efe491e30697e21c8b7ae1b615480873\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c83456601e65a6dd371ddf595510183d198e9b1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b3ebd9830c6026c98f03f7047c9d608573773f13\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b96fb681ca789629b8ba3da99ca3b2e6fa807f0a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4.14.187\",\n \"lessThan\": \"4.15\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.131\",\n \"lessThan\": \"4.20\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.46\",\n \"lessThan\": \"5.5\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.6.18\",\n \"lessThan\": \"5.7\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/linux/virtio_net.h\"\n ],\n \"versions\": [\n {\n \"version\": \"5.7\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.7\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.221\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.188\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.157\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.110\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.52\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2.6\",\n \"lessThanOrEqual\": \"7.2.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.3\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/d3d111fe809773edbb4ae121e36253b7d683509a","https://git.kernel.org/stable/c/8f6667a081887c2b59c6f3dd86c1789ada563762","https://git.kernel.org/stable/c/339f47ae04dcc6b5a730dd6bc70dddc8937c3260","https://git.kernel.org/stable/c/29bd12c7c5f9d6cf855b87bace18f71e9607f9e8","https://git.kernel.org/stable/c/0e5ed3b98d1d8d251acfdccfeaa607453ad12954","https://git.kernel.org/stable/c/75c271c48f483af678e514734e10b2452410e08c","https://git.kernel.org/stable/c/c27c449d455aafd9018a3cbab150f1c42c87923f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90063","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90063","identifiers":["CVE-2026-90063"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-09T03:04:09.5264463+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-09T03:04:09.5264463+00:00","lastSuccessAt":"2026-11-09T03:04:09.687719+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.687725+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-24e6fde7b744113daefb8f6135035fb8a5c69c9617c9c0d40574a0376532ffd3-147e40e6bacaf605c8b8b91790303c2161fe161e986dcab4007ffaf615b27ea0","complete":true,"records":421280,"lastAttemptAt":"2026-11-09T03:02:14.7184665+00:00","lastSuccessAt":"2026-11-09T03:02:14.7023872+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:02:14.7184665+00:00","snapshotPublishedAt":"2026-11-09T02:22:19+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-5923d59598fe46c98ec384fbfaf44bc7","complete":false,"records":13654,"lastAttemptAt":"2026-11-09T03:16:18.1412099+00:00","lastSuccessAt":"2026-11-09T03:16:18.138+00:00","error":"6 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T03:16:18.138+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13655,"expectedIdentifiers":13706,"failedIdentifiers":6},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T03:04:09.5264463+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T03:04:09.5264463+00:00","lastSuccessAt":"2026-11-09T03:04:09.6884561+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.6884561+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-5a44a451442747cb81d83104fe1e7771","complete":true,"records":13666,"lastAttemptAt":"2026-11-09T03:04:10.1662574+00:00","lastSuccessAt":"2026-11-09T02:08:52.274+00:00","error":null,"lastVerifiedAt":"2026-11-09T02:08:52.274+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13706,"expectedIdentifiers":13706,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T03:04:09.4835743+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.4835743+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T03:02:14.8618119+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:02:14.8618119+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-3b1150af6d7ada2c07356cbab4ead5224c1485027890f71c71d0742cddf0b9e8","complete":true,"records":3055,"lastAttemptAt":"2026-11-09T03:04:09.4954044+00:00","lastSuccessAt":"2026-11-09T00:02:23.4330288+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.4954044+00:00","snapshotPublishedAt":"2026-11-08T23:17:54+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-d847477990cd62b1d95e922f40ca328269fbc268a0aa72bfe5bee28e656d8ce7","complete":true,"records":231296,"lastAttemptAt":"2026-11-09T03:04:09.3500258+00:00","lastSuccessAt":"2026-11-09T03:04:07.965371+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.3500258+00:00","snapshotPublishedAt":"2026-11-09T02:33:09+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}