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CVE-2026-53012

In the Linux kernel, the following vulnerability has been resolved: nexthop: fix IPv6 route referencing IPv4 nexthop syzbot reported a panic [1] [2]. When an IPv6 nexthop is replaced with an IPv4 nexthop, the has_v4 flag of all groups containing this nexthop is not updated. This is because nh_group_v4_update is only called when replacing AF_INET to AF_INET6, but the reverse direction (AF_INET6 to AF_INET) is missed. This allows a stale has_v4=false to bypass fib6_check_nexthop, causing IPv6
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8a7e76b467500962882aec4ba7c6d893378409be8231f06f8beccd58e50030cb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/nexthop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.3"},{"lessThan":"5.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEq…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/nexthop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ceffe81a0be92afc0cd1340bc8ca46559cce9bb4","status":"affected","version":"7bf4796dd09984ad1612877a82d0d139c70ae27f","versionType":"git"},{"lessThan":"9c2d6770a5f4545a307eb66979bef7656a34d621","status":"affected","version":"7bf4796dd09984ad1612877a82d0d139c70ae27f","versionType":"git"},{"lessThan":"6275796f22bb382f3e9aa58ed0b4ef7bdad78cb8","status":"affected","version":"7bf4796dd09984ad1612877a82d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/nexthop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.3"},{"lessThan":"5.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEq…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/nexthop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ceffe81a0be92afc0cd1340bc8ca46559cce9bb4","status":"affected","version":"7bf4796dd09984ad1612877a82d0d139c70ae27f","versionType":"git"},{"lessThan":"9c2d6770a5f4545a307eb66979bef7656a34d621","status":"affected","version":"7bf4796dd09984ad1612877a82d0d139c70ae27f","versionType":"git"},{"lessThan":"6275796f22bb382f3e9aa58ed0b4ef7bdad78cb8","status":"affected","version":"7bf4796dd09984ad1612877a82d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/29c95185ba32b621fbc3800fb86e7dc3edf5c2be"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/613c8f4a501421dd258b07ea614205d4e16ec845"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/6275796f22bb382f3e9aa58ed0b4ef7bdad78cb8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/9c2d6770a5f4545a307eb66979bef7656a34d621"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/aaac3bed034239e1d75732211d9b05f30b0b4f35"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/ad85961004fd4bd2f31209ac4b07612c6cefb9e7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/b3b7e850e1541f0520c4a12ec884255c30427ff6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/ceffe81a0be92afc0cd1340bc8ca46559cce9bb4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4f3c65b0b21d52f7d4e5cf66fc3e4842eca8bf003cbcb2e52f436f26469a05a0 · sha256:0c98edce539a30d1… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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