{"api_version":"1","generated_at":"2026-05-06T20:29:27+00:00","cve":"CVE-2026-43101","urls":{"html":"https://cve.report/CVE-2026-43101","api":"https://cve.report/api/cve/CVE-2026-43101.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43101","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43101"},"summary":{"title":"ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()\n\nWe need to check __in6_dev_get() for possible NULL value, as\nsuggested by Yiming Qian.\n\nAlso add skb_dst_dev_rcu() instead of skb_dst_dev(),\nand two missing READ_ONCE().\n\nNote that @dev can't be NULL.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-06 10:16:23","updated_at":"2026-05-06 13:07:51"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/4198aab6f000b4febb18ea820fea20634dd789c7","name":"https://git.kernel.org/stable/c/4198aab6f000b4febb18ea820fea20634dd789c7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4e65a8b8daa18d63255ec58964dd192c7fdd9f8b","name":"https://git.kernel.org/stable/c/4e65a8b8daa18d63255ec58964dd192c7fdd9f8b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6","name":"https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43101","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43101","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9ee11f0fff205b4b3df9750bff5e94f97c71b6a0 4198aab6f000b4febb18ea820fea20634dd789c7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9ee11f0fff205b4b3df9750bff5e94f97c71b6a0 3719c234fa94c37c955b1ecd3742ef280ec135e6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9ee11f0fff205b4b3df9750bff5e94f97c71b6a0 4e65a8b8daa18d63255ec58964dd192c7fdd9f8b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.24 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.14 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/ioam6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4198aab6f000b4febb18ea820fea20634dd789c7","status":"affected","version":"9ee11f0fff205b4b3df9750bff5e94f97c71b6a0","versionType":"git"},{"lessThan":"3719c234fa94c37c955b1ecd3742ef280ec135e6","status":"affected","version":"9ee11f0fff205b4b3df9750bff5e94f97c71b6a0","versionType":"git"},{"lessThan":"4e65a8b8daa18d63255ec58964dd192c7fdd9f8b","status":"affected","version":"9ee11f0fff205b4b3df9750bff5e94f97c71b6a0","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/ioam6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.24","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.14","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"5.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()\n\nWe need to check __in6_dev_get() for possible NULL value, as\nsuggested by Yiming Qian.\n\nAlso add skb_dst_dev_rcu() instead of skb_dst_dev(),\nand two missing READ_ONCE().\n\nNote that @dev can't be NULL."}],"providerMetadata":{"dateUpdated":"2026-05-06T07:40:30.969Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/4198aab6f000b4febb18ea820fea20634dd789c7"},{"url":"https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6"},{"url":"https://git.kernel.org/stable/c/4e65a8b8daa18d63255ec58964dd192c7fdd9f8b"}],"title":"ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43101","datePublished":"2026-05-06T07:40:30.969Z","dateReserved":"2026-05-01T14:12:55.984Z","dateUpdated":"2026-05-06T07:40:30.969Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 10:16:23","lastModifiedDate":"2026-05-06 13:07:51","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43101","Ordinal":"1","Title":"ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trac","CVE":"CVE-2026-43101","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43101","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()\n\nWe need to check __in6_dev_get() for possible NULL value, as\nsuggested by Yiming Qian.\n\nAlso add skb_dst_dev_rcu() instead of skb_dst_dev(),\nand two missing READ_ONCE().\n\nNote that @dev can't be NULL.","Type":"Description","Title":"ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trac"}]}}}