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CVE-2026-31668

In the Linux kernel, the following vulnerability has been resolved: seg6: separate dst_cache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a single dst_cache per encap route, shared between seg6_input_core() and seg6_output_core(). These two paths can perform the post-encap SID lookup in different routing contexts (e.g., ip rules matching on the ingress interface, or VRF table separation). Whichever path runs first populates the cache, and the other reuses it blindly, bypa
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:15932e313ae1e867825db84e8db3f60490616165b5e768b05b0fc959c6f06801
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/ipv6/seg6_iptunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.10"},{"lessThan":"4.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.169","versionType":"semver"},{"less…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/seg6_iptunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1dec91d3b1cefb82635761b7812154af3ef46449","status":"affected","version":"6c8702c60b88651072460f3f4026c7dfe2521d12","versionType":"git"},{"lessThan":"750569d6987a0ff46317a4b86eb3907e296287bf","status":"affected","version":"6c8702c60b88651072460f3f4026c7dfe2521d12","versionType":"git"},{"lessThan":"57d0374d14fa667dec6952173b93e7e84486d5c9","status":"affected","version":"6c8702c60b88651072460…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/seg6_iptunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.10"},{"lessThan":"4.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.169","versionType":"semver"},{"less…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/seg6_iptunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1dec91d3b1cefb82635761b7812154af3ef46449","status":"affected","version":"6c8702c60b88651072460f3f4026c7dfe2521d12","versionType":"git"},{"lessThan":"750569d6987a0ff46317a4b86eb3907e296287bf","status":"affected","version":"6c8702c60b88651072460f3f4026c7dfe2521d12","versionType":"git"},{"lessThan":"57d0374d14fa667dec6952173b93e7e84486d5c9","status":"affected","version":"6c8702c60b88651072460…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/17d87d42874f5d6c1a0ccc6d9190dfe82a9a7a6a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/1dec91d3b1cefb82635761b7812154af3ef46449"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/57d0374d14fa667dec6952173b93e7e84486d5c9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6305ad032b03d2ea4181b953a66e19a9a6ed053c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/750569d6987a0ff46317a4b86eb3907e296287bf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/84d458018b147176b259347103fccb7e93abd2b1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/c3812651b522fe8437ebb7063b75ddb95b571643"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/fb56de5d99218de49d5d43ef3a99e062ecd0f9a1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fbe2f3e42c0efc2e590617ebf28b8825d46bbf960d4f31ac1a2ac9a195929d73 · sha256:f344056db6ae3c72… · /containers/cna/references/5

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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