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CVE-2026-31470

In the Linux kernel, the following vulnerability has been resolved: virt: tdx-guest: Fix handling of host controlled 'quote' buffer length Validate host controlled value `quote_buf->out_len` that determines how many bytes of the quote are copied out to guest userspace. In TDX environments with remote attestation, quotes are not considered private, and can be forwarded to an attestation server. Catch scenarios where the host specifies a response length larger than the guest's allocation, or ot
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b70d7b6cdfbda379047e0b93aef1fe7fce685ac391a9229f765f083912d13fc3
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":["drivers/virt/coco/tdx-guest/tdx-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a079a62883e3365de592cea9f7a669d8115433b0","status":"affected","version":"f4738f56d1dc62aaba69b33702a5ab098f1b8c63","versionType":"git"},{"lessThan":"6f3c8795ae9ba74fa10fe979293d1904712d3fb1","status":"affected","version":"f4738f56d1dc62aaba69b33702a5ab098f1b8c63","versionType":"git"},{"lessThan":"02ca2d9d197723696cb9cc0cb159eb7e8bf5f89b","status":"affected","version":"f4738f…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/virt/coco/tdx-guest/tdx-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"sem…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/virt/coco/tdx-guest/tdx-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a079a62883e3365de592cea9f7a669d8115433b0","status":"affected","version":"f4738f56d1dc62aaba69b33702a5ab098f1b8c63","versionType":"git"},{"lessThan":"6f3c8795ae9ba74fa10fe979293d1904712d3fb1","status":"affected","version":"f4738f56d1dc62aaba69b33702a5ab098f1b8c63","versionType":"git"},{"lessThan":"02ca2d9d197723696cb9cc0cb159eb7e8bf5f89b","status":"affected","version":"f4738f…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/virt/coco/tdx-guest/tdx-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"sem…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/02ca2d9d197723696cb9cc0cb159eb7e8bf5f89b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6f3c8795ae9ba74fa10fe979293d1904712d3fb1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/a079a62883e3365de592cea9f7a669d8115433b0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c3fd16c3b98ed726294feab2f94f876290bf7b61"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62e8288ffa79a2579ac19073dd4ffc43b37f55ea039476879dfc06029e51f81c · sha256:233728e3933a7174… · /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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