{"id":"CVE-2026-98285","state":"PUBLISHED","title":"net: bridge: vlan: fix bugs caused by switchdev deletion errors","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: vlan: fix bugs caused by switchdev deletion errors\n\nAllowing switchdev to prevent vlan deletion and error out in __vlan_del\ncould cause multiple different issues - inconsistent state, memory leaks\nwhen flushing, NULL pointer dereference on bridge error when flushing.\nIt doesn't make sense to allow it to stop __vlan_del, so log the error\nand continue with software vlan deletion. This is also consistent with\n8021q behaviour.","publishedAt":"2026-10-06T08:45:46.332Z","updatedAt":"2026-10-19T09:16:56.666Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"bf361ad38165939049a2649b1a0078f3268d4bd1","status":"affected","lessThan":"ed3ea86db736a30bebf49b947c42730e8451bcd2","versionType":"git"},{"version":"bf361ad38165939049a2649b1a0078f3268d4bd1","status":"affected","lessThan":"2842ce397dd09882530b42f7fdb0c855767eb24e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bridge/br_vlan.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.3","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bridge/br_vlan.c"]}],"references":["https://git.kernel.org/stable/c/ed3ea86db736a30bebf49b947c42730e8451bcd2","https://git.kernel.org/stable/c/2842ce397dd09882530b42f7fdb0c855767eb24e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98285.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98285","state":"PUBLISHED","datePublished":"2026-10-06T08:45:46.332Z","dateUpdated":"2026-10-19T09:16:56.666Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.335Z"},"containers":{"cna":{"title":"net: bridge: vlan: fix bugs caused by switchdev deletion errors","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: vlan: fix bugs caused by switchdev deletion errors\n\nAllowing switchdev to prevent vlan deletion and error out in __vlan_del\ncould cause multiple different issues - inconsistent state, memory leaks\nwhen flushing, NULL pointer dereference on bridge error when flushing.\nIt doesn't make sense to allow it to stop __vlan_del, so log the error\nand continue with software vlan deletion. This is also consistent with\n8021q behaviour."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"bf361ad38165939049a2649b1a0078f3268d4bd1","status":"affected","lessThan":"ed3ea86db736a30bebf49b947c42730e8451bcd2","versionType":"git"},{"version":"bf361ad38165939049a2649b1a0078f3268d4bd1","status":"affected","lessThan":"2842ce397dd09882530b42f7fdb0c855767eb24e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bridge/br_vlan.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.3","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bridge/br_vlan.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ed3ea86db736a30bebf49b947c42730e8451bcd2"},{"url":"https://git.kernel.org/stable/c/2842ce397dd09882530b42f7fdb0c855767eb24e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:16:56.666Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}