{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23442", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:46.018Z", "datePublished": "2026-04-03T15:15:26.851Z", "dateUpdated": "2026-04-03T15:15:26.851Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-03T15:15:26.851Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: add NULL checks for idev in SRv6 paths\n\n__in6_dev_get() can return NULL when the device has no IPv6 configuration\n(e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER).\n\nAdd NULL checks for idev returned by __in6_dev_get() in both\nseg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL\npointer dereferences."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/exthdrs.c", "net/ipv6/seg6_hmac.c"], "versions": [{"version": "1ababeba4a21f3dba3da3523c670b207fb2feb62", "lessThan": "a25853c9feea7bbf31d157ff6e004d2d3b4f7f13", "status": "affected", "versionType": "git"}, {"version": "1ababeba4a21f3dba3da3523c670b207fb2feb62", "lessThan": "06413793526251870e20402c39930804f14d59c0", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/exthdrs.c", "net/ipv6/seg6_hmac.c"], "versions": [{"version": "4.10", "status": "affected"}, {"version": "0", "lessThan": "4.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.10", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0-rc5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "6.19.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "7.0-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13"}, {"url": "https://git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0"}], "title": "ipv6: add NULL checks for idev in SRv6 paths", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: add NULL checks for idev in SRv6 paths\n\n__in6_dev_get() can return NULL when the device has no IPv6 configuration\n(e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER).\n\nAdd NULL checks for idev returned by __in6_dev_get() in both\nseg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL\npointer dereferences."}], "id": "CVE-2026-23442", "lastModified": "2026-04-03T16:16:28.423", "metrics": {}, "published": "2026-04-03T16:16:28.423", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}