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CVE-2026-63829

In the Linux kernel, the following vulnerability has been resolved: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink A tunnel changelink() operates on at most two netns, dev_net(dev) and the tunnel link netns t->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in t->net can rewrite a tunnel that lives in t->
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d2f468bd37ad26f0ee7c0aceb31e8edf1364f025802312abddc9feb9feed2c29
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":["include/net/rtnetlink.h","net/core/rtnetlink.c","net/ipv4/ip_gre.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"19275943d8fe903eb7b9aa53e380e41efd042ada","status":"affected","version":"b57708add31494175be741ed3fd24023b50c3423","versionType":"git"},{"lessThan":"866b0f5ae599490bd496fd84581c68ac8b94e6af","status":"affected","version":"b57708add31494175be741ed3fd24023b50c3423","versionType":"git"},{"lessThan":"92b766fc55156e0da2ecd0c2302c971118f8a229","status":"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/rtnetlink.h","net/core/rtnetlink.c","net/ipv4/ip_gre.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.16"},{"lessThan":"3.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/rtnetlink.h","net/core/rtnetlink.c","net/ipv4/ip_gre.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"19275943d8fe903eb7b9aa53e380e41efd042ada","status":"affected","version":"b57708add31494175be741ed3fd24023b50c3423","versionType":"git"},{"lessThan":"866b0f5ae599490bd496fd84581c68ac8b94e6af","status":"affected","version":"b57708add31494175be741ed3fd24023b50c3423","versionType":"git"},{"lessThan":"92b766fc55156e0da2ecd0c2302c971118f8a229","status":"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/rtnetlink.h","net/core/rtnetlink.c","net/ipv4/ip_gre.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.16"},{"lessThan":"3.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /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:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1697957eb0971d420dde42862b88eb43506a1105"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/19275943d8fe903eb7b9aa53e380e41efd042ada"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/47b5d3d506609b08b2e1f7c14f0b681a1953d572"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/8165f7ff57d9667d2bb477ef6af83ede7fed4ad7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/866b0f5ae599490bd496fd84581c68ac8b94e6af"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/92b766fc55156e0da2ecd0c2302c971118f8a229"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/9831bc9ecb402957810c2045c663fbfe9b09e296"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/e54c05ed3d9c28733fb9e5837219aca3691defa3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4eb96ebd90c91513ce771d81a03a0380ce157b05ba488b2ac6a3792b4e9dc892 · sha256:28b816029bf4f577… · /containers/cna/references/3

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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