{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-99286","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-11-10T19:22:31.930","lastModified":"2026-11-10T21:22:22.900","vulnStatus":"Received","cveTags":[],"descriptions":[{"lang":"en","value":"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-\u003enum_queues\nunder rcu_read_lock. We need to unpublish vif-\u003enum_queues before\nsynchronize_net to ensure that readers that come afterwards will not\nread a non-zero vif-\u003enum_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"}],"affected":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","affectedData":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/xen-netback/xenbus.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"ade3082dcdee17c5767069883936d64ff83f6c9f","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"a97aa838903d15f865d80809f5198ff459c6634a","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"07aca7d25ce8578fedde49855983a01c537a782b","versionType":"git","status":"affected"},{"version":"0","lessThan":"6.12.117","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.18.63","versionType":"semver","status":"affected"},{"version":"0","lessThan":"7.3.4","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/xen-netback/xenbus.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.12.117","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.63","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.3.4","lessThanOrEqual":"7.3.*","versionType":"semver","status":"unaffected"}]}]}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/07aca7d25ce8578fedde49855983a01c537a782b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a97aa838903d15f865d80809f5198ff459c6634a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ade3082dcdee17c5767069883936d64ff83f6c9f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"http://www.openwall.com/lists/oss-security/2026/11/10/25","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://xenbits.xen.org/xsa/advisory-531.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}