{"id":"CVE-2026-90105","state":"PUBLISHED","title":"vxlan: fix reading neigh ha","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: fix reading neigh ha\n\nCurrently arp/neigh_reduce read neigh ha directly which can lead to\npartial reads while the neigh is being updated. Use neigh_ha_snapshot to\ntake a stable snapshot of the address similar to route_shortcircuit which\nalready does the right thing.","publishedAt":"2026-09-17T16:06:14.829Z","updatedAt":"2026-10-30T12:34:09.898Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"a1e86c5b4463178751a9fd3f0a3876a602dc360c","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"6093baf2b2c57e7da33bacd2223570a78b416d89","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"751cb520f9e47538b7223df133806a29fc41f54f","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"f43ef9a3f9c121472a0754c9e9bff13317ace0f7","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"ecc8bac11a101e5f6989a14b92e17b51f9761630","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"b824059a673b2283e78c7aae2c7d257aad7f0e1d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/vxlan/vxlan_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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":["drivers/net/vxlan/vxlan_core.c"]}],"references":["https://git.kernel.org/stable/c/a1e86c5b4463178751a9fd3f0a3876a602dc360c","https://git.kernel.org/stable/c/6093baf2b2c57e7da33bacd2223570a78b416d89","https://git.kernel.org/stable/c/751cb520f9e47538b7223df133806a29fc41f54f","https://git.kernel.org/stable/c/f43ef9a3f9c121472a0754c9e9bff13317ace0f7","https://git.kernel.org/stable/c/ecc8bac11a101e5f6989a14b92e17b51f9761630","https://git.kernel.org/stable/c/b824059a673b2283e78c7aae2c7d257aad7f0e1d"],"weaknesses":[],"ingestedAt":"2026-10-30T12:52:04.348Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90105.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90105","state":"PUBLISHED","datePublished":"2026-09-17T16:06:14.829Z","dateUpdated":"2026-10-30T12:34:09.898Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.786Z"},"containers":{"cna":{"title":"vxlan: fix reading neigh ha","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: fix reading neigh ha\n\nCurrently arp/neigh_reduce read neigh ha directly which can lead to\npartial reads while the neigh is being updated. Use neigh_ha_snapshot to\ntake a stable snapshot of the address similar to route_shortcircuit which\nalready does the right thing."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"a1e86c5b4463178751a9fd3f0a3876a602dc360c","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"6093baf2b2c57e7da33bacd2223570a78b416d89","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"751cb520f9e47538b7223df133806a29fc41f54f","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"f43ef9a3f9c121472a0754c9e9bff13317ace0f7","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"ecc8bac11a101e5f6989a14b92e17b51f9761630","versionType":"git"},{"version":"e4f67addf158f98f8197e08974966b18480dc751","status":"affected","lessThan":"b824059a673b2283e78c7aae2c7d257aad7f0e1d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/vxlan/vxlan_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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":["drivers/net/vxlan/vxlan_core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a1e86c5b4463178751a9fd3f0a3876a602dc360c"},{"url":"https://git.kernel.org/stable/c/6093baf2b2c57e7da33bacd2223570a78b416d89"},{"url":"https://git.kernel.org/stable/c/751cb520f9e47538b7223df133806a29fc41f54f"},{"url":"https://git.kernel.org/stable/c/f43ef9a3f9c121472a0754c9e9bff13317ace0f7"},{"url":"https://git.kernel.org/stable/c/ecc8bac11a101e5f6989a14b92e17b51f9761630"},{"url":"https://git.kernel.org/stable/c/b824059a673b2283e78c7aae2c7d257aad7f0e1d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:34:09.898Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}