{"id":"CVE-2026-99286","aliases":[],"cve":{"records":[{"id":"CVE-2026-99286","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.405Z","published":"2026-11-10T18:16:53.997Z","modified":"2026-11-13T14:17:21.441Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-11-13T14:17:21.441Z"},{"name":"CVE","role":"ADP","organizationId":"af854a3a-2127-422b-91ae-364da2661108","modified":"2026-11-10T21:05:24.916Z"}],"references":[{"url":"https://git.kernel.org/stable/c/ade3082dcdee17c5767069883936d64ff83f6c9f","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/a97aa838903d15f865d80809f5198ff459c6634a","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/07aca7d25ce8578fedde49855983a01c537a782b","tags":[],"source":"Linux"},{"url":"http://www.openwall.com/lists/oss-security/2026/11/10/25","tags":[],"source":"CVE"},{"url":"http://xenbits.xen.org/xsa/advisory-531.html","tags":[],"source":"CVE"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.116","versionEndExcluding":"6.12.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.62","versionEndExcluding":"6.18.63"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.3.3","versionEndExcluding":"7.3.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.4-rc2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.274"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.225"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.192"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.162"}]}]}]}],"prioritization":[]},"title":"xen-netback: Fix XenBus connection failure cleanup","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen-netback: Fix XenBus connection failure cleanup\n\nxenvif_get_stats and xenvif_get_ethtool_stats capture vif->num_queues\nunder rcu_read_lock. We need to unpublish vif->num_queues before\nsynchronize_net to ensure that readers that come afterwards will not\nread a non-zero vif->num_queues and attempt to access invalid queues.\n\nThis is the same cleanup algorithm as used in backend_disconnect and\nadded in commit b17075d5c198 (\"xen-netback: fix race condition on XenBus\ndisconnect\").\n\nThis is XSA-531","score":null,"severity":"unknown","published":"2026-11-10T18:16:53.997Z","modified":"2026-11-13T14:17:21.441Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"6cd611d2abdd8623a554e14145f82c1cb4e4467a","status":"affected","lessThan":"ade3082dcdee17c5767069883936d64ff83f6c9f","versionType":"git"},{"version":"37d5a73170579b30e67cc8b19ec69715eea3a6b6","status":"affected","lessThan":"a97aa838903d15f865d80809f5198ff459c6634a","versionType":"git"},{"version":"4867687b6ad28ab84bc0811d8f8f9972e769da02","status":"affected","lessThan":"07aca7d25ce8578fedde49855983a01c537a782b","versionType":"git"},{"version":"5fb756f1bbec7a3862dda5d79028bf656271804c","status":"affected","versionType":"git"},{"version":"4223b33be49ee09acb6f1d26beb4a36dd3b8d63a","status":"affected","versionType":"git"},{"version":"ab9cdf1291be551da999510b30216a2886074d7a","status":"affected","versionType":"git"},{"version":"36f858f228e3f955b9336af7f94634747c221518","status":"affected","versionType":"git"},{"version":"89e534265b62c94749639350200b10370564bb3a","status":"affected","versionType":"git"},{"version":"6.12.116","status":"affected","lessThan":"6.12.117","versionType":"semver"},{"version":"6.18.62","status":"affected","lessThan":"6.18.63","versionType":"semver"},{"version":"7.3.3","status":"affected","lessThan":"7.3.4","versionType":"semver"},{"version":"5.10.274","status":"affected","lessThan":"5.11","versionType":"semver"},{"version":"5.15.225","status":"affected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.192","status":"affected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.162","status":"affected","lessThan":"6.7","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99286"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"7.4-rc2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.4-rc2","versionType":"semver"},{"version":"6.12.117","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.63","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.3.4","status":"unaffected","lessThanOrEqual":"7.3.*","versionType":"semver"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99286"}],"remediation":[],"references":["https://git.kernel.org/stable/c/ade3082dcdee17c5767069883936d64ff83f6c9f","https://git.kernel.org/stable/c/a97aa838903d15f865d80809f5198ff459c6634a","https://git.kernel.org/stable/c/07aca7d25ce8578fedde49855983a01c537a782b","http://www.openwall.com/lists/oss-security/2026/11/10/25","http://xenbits.xen.org/xsa/advisory-531.html"],"sources":[{"name":"CVE","id":"CVE-2026-99286","modified":"2026-11-13T14:17:21.441Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-99286"}],"assessments":[],"sourceAffected":[],"observedAt":"2026-11-13T22:05:10.969Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T23:35:33.875Z"},"coverage":[{"source":"NVD","status":"refresh-failed","attemptedAt":"2026-11-14T07:35:31.234Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-14T07:30:31.806Z","attemptedAt":"2026-11-14T07:30:31.806Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-14T07:25:31.388Z","attemptedAt":"2026-11-14T07:25:31.388Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-14T07:25:31.728Z","attemptedAt":"2026-11-14T07:25:31.728Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-121530","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-121530","modified":"Nov 13, 2026, 2:17:21 PM","checkedAt":"2026-11-14T07:25:31.388Z"},{"source":"FIRST EPSS","id":"CVE-2026-99286","url":"https://www.first.org/epss/","probability":0.00172,"percentile":0.06694,"date":"2026-11-13","checkedAt":"2026-11-14T07:25:31.728Z"},{"source":"GitHub Advisory Database","id":"GHSA-v4rj-whxc-qp2h","url":"https://github.com/advisories/GHSA-v4rj-whxc-qp2h","modified":"2026-11-10T21:34:33Z","checkedAt":"2026-11-14T07:30:31.806Z"}],"aiSummary":null}