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CVE-2026-63921

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate(). After patch 1/2 in this series, vti6_update() unlinks and relinks the tunnel through t->net. vti6_siocdevprivate() still uses dev_net(dev) for the collision lookup. For a tunnel moved through IFLA_NET_NS_FD, dev_net(dev) is the new netns, not t->net. SIOCCHGTUNNEL on a migrated tunnel then runs: net = dev_net(dev) /* migrated netns */ t = vti6_locat
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8862adb05f2ce755277f57414d224a90b1faa81b23b0a47c27343d4eb17c5017
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":"unaffected","product":"Linux","programFiles":["net/ipv6/ip6_vti.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"94ff740a7f9ef5c010784a325dca00cbf228f941","status":"affected","version":"61220ab349485d911083d0b7990ccd3db6c63297","versionType":"git"},{"lessThan":"df42ac708acc3399bbb6dc5ca16e0540adda7bbf","status":"affected","version":"61220ab349485d911083d0b7990ccd3db6c63297","versionType":"git"},{"lessThan":"44d2ff7d2178503b93151140a45dfa2ad49c9906","status":"affected","version":"61220ab349485d911083d0b7990…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/ip6_vti.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.15"},{"lessThan":"3.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOr…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/ip6_vti.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"94ff740a7f9ef5c010784a325dca00cbf228f941","status":"affected","version":"61220ab349485d911083d0b7990ccd3db6c63297","versionType":"git"},{"lessThan":"df42ac708acc3399bbb6dc5ca16e0540adda7bbf","status":"affected","version":"61220ab349485d911083d0b7990ccd3db6c63297","versionType":"git"},{"lessThan":"44d2ff7d2178503b93151140a45dfa2ad49c9906","status":"affected","version":"61220ab349485d911083d0b7990…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/ip6_vti.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.15"},{"lessThan":"3.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOr…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1acfb7d9c6fc7e209ed7789392697e97e03edd33"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/44d2ff7d2178503b93151140a45dfa2ad49c9906"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/596f6354c96a891e58c04a09cbfb7b0d1ec00dab"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/853f6ea482dfcd3404bbef458ab4d68364eed838"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/8b484efd5cb4eeef9021a661e198edc5349dacf6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/94ff740a7f9ef5c010784a325dca00cbf228f941"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/d2236348414bdd6558385f35aa7fdc9bf5634011"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/df42ac708acc3399bbb6dc5ca16e0540adda7bbf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:639ba91aaf26d39fd04736bde1640c6f92aeb404e710ba1aaf34283899a1ee74 · sha256:f95717e2f39369e2… · /containers/cna/references/1

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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