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CVE-2026-43018

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt hci_conn lookup and field access must be covered by hdev lock in hci_le_remote_conn_param_req_evt, otherwise it's possible it is freed concurrently. Extend the hci_dev_lock critical section to cover all conn usage.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2b72b8901e5da79ff3f5a0997f296ea168f79bfa59e9879695c560b5eda73e5b
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":["net/bluetooth/hci_event.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"59eecf0ffde15670e6a5e10c47be67f73d843b20","status":"affected","version":"95118dd4edfec950898a00180c6f998df0a6406d","versionType":"git"},{"lessThan":"5fb69e1eeea9d6cba80517e9f058b56b34bc3a81","status":"affected","version":"95118dd4edfec950898a00180c6f998df0a6406d","versionType":"git"},{"lessThan":"7cadb03be37e761130edb153544fe0770a842b19","status":"affected","version":"95118dd4edfec950898a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/affected/0

{"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":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.134","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.81","versionType":"semver"},{"lessTh…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"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":"59eecf0ffde15670e6a5e10c47be67f73d843b20","status":"affected","version":"95118dd4edfec950898a00180c6f998df0a6406d","versionType":"git"},{"lessThan":"5fb69e1eeea9d6cba80517e9f058b56b34bc3a81","status":"affected","version":"95118dd4edfec950898a00180c6f998df0a6406d","versionType":"git"},{"lessThan":"7cadb03be37e761130edb153544fe0770a842b19","status":"affected","version":"95118dd4edfec950898a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/affected/0
{"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":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.134","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.81","versionType":"semver"},{"lessTh…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/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:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/metrics/0/cvssV3_1

Source references

6 source assertions
{"url":"https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b8009e0a917ba1d8abafae7d0bcac85770c77e2299bcc18eeb25f2c4262c5de · sha256:c78dd15d10d67402… · /containers/cna/references/4

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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