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CVE-2026-31771

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: move wake reason storage into validated event handlers hci_store_wake_reason() is called from hci_event_packet() immediately after stripping the HCI event header but before hci_event_func() enforces the per-event minimum payload length from hci_ev_table. This means a short HCI event frame can reach bacpy() before any bounds check runs. Rather than duplicating skb parsing and per-event length checks insid
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6e0572da585a823dd95dd0d41eadb1ccbccc8fbf5c3b5db4a8e523639c4f5ca5
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/bluetooth/hci_event.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.10"},{"lessThan":"5.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0ceb0032d5a360d4c639b89c9cdb9378509461faa405f902ca0ffffc362d11e · sha256:3abd492ac74fd7df… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/hci_event.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"86c8d07a64d553c41e213b52650020010f9ef23e","status":"affected","version":"2f20216c1d6fe17c1a224f658be0dc6fab2269c7","versionType":"git"},{"lessThan":"2b2bf47cd75518c36fa2d41380e4a40641cc89cd","status":"affected","version":"2f20216c1d6fe17c1a224f658be0dc6fab2269c7","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0ceb0032d5a360d4c639b89c9cdb9378509461faa405f902ca0ffffc362d11e · sha256:3abd492ac74fd7df… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/hci_event.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.10"},{"lessThan":"5.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0ceb0032d5a360d4c639b89c9cdb9378509461faa405f902ca0ffffc362d11e · sha256:3abd492ac74fd7df… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/hci_event.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"86c8d07a64d553c41e213b52650020010f9ef23e","status":"affected","version":"2f20216c1d6fe17c1a224f658be0dc6fab2269c7","versionType":"git"},{"lessThan":"2b2bf47cd75518c36fa2d41380e4a40641cc89cd","status":"affected","version":"2f20216c1d6fe17c1a224f658be0dc6fab2269c7","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0ceb0032d5a360d4c639b89c9cdb9378509461faa405f902ca0ffffc362d11e · sha256:3abd492ac74fd7df… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/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:b0ceb0032d5a360d4c639b89c9cdb9378509461faa405f902ca0ffffc362d11e · sha256:3abd492ac74fd7df… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/2b2bf47cd75518c36fa2d41380e4a40641cc89cd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b0ceb0032d5a360d4c639b89c9cdb9378509461faa405f902ca0ffffc362d11e · sha256:3abd492ac74fd7df… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/86c8d07a64d553c41e213b52650020010f9ef23e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b0ceb0032d5a360d4c639b89c9cdb9378509461faa405f902ca0ffffc362d11e · sha256:3abd492ac74fd7df… · /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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