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CVE-2026-43019

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync hci_conn lookup and field access must be covered by hdev lock in set_cig_params_sync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hci_conn from being deleted or modified concurrently. Just RCU lock is not suitable here, as we also want to avoid "tearing" in the configuration.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d0720ed57800a83eb4711a5eecf2807797c6f741b92e5148579ead00c77e7b0b
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_conn.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.6"},{"lessThan":"6.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.81","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.22","versionType":"semver"},{"lessThan…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/hci_conn.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7502c1cf303b69f71d085f5ff7251b0e1b0f09df","status":"affected","version":"a091289218202bc09d9b9caa8afcde1018584aec","versionType":"git"},{"lessThan":"66d432e9b45bae7881ffcdb12cd8fd0bf254ef02","status":"affected","version":"a091289218202bc09d9b9caa8afcde1018584aec","versionType":"git"},{"lessThan":"7d568fede8eac91161a60b710aa920abe9b0fb9f","status":"affected","version":"a091289218202bc09d9b9…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/hci_conn.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.6"},{"lessThan":"6.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.81","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.22","versionType":"semver"},{"lessThan…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/hci_conn.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7502c1cf303b69f71d085f5ff7251b0e1b0f09df","status":"affected","version":"a091289218202bc09d9b9caa8afcde1018584aec","versionType":"git"},{"lessThan":"66d432e9b45bae7881ffcdb12cd8fd0bf254ef02","status":"affected","version":"a091289218202bc09d9b9caa8afcde1018584aec","versionType":"git"},{"lessThan":"7d568fede8eac91161a60b710aa920abe9b0fb9f","status":"affected","version":"a091289218202bc09d9b9…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/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:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/66d432e9b45bae7881ffcdb12cd8fd0bf254ef02"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/7502c1cf303b69f71d085f5ff7251b0e1b0f09df"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/7d568fede8eac91161a60b710aa920abe9b0fb9f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a2639a7f0f5bf7d73f337f8f077c19415c62ed2c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/bad65b4b0a96139f023eadc28a33125963208449"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:581d5754f750d390a3113cd74ab3098cf8108ab0d02b653659d59d38443c63a5 · sha256:bc5a8e6c0f241cdb… · /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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