Bluetooth: hci_sync: hold conn in hci_connect_pa_sync() callback

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74529
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 13:17:58 UTC
Updated2026-08-17 06:19:49 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_pa_sync() callback There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001550000 probability, percentile 0.051940000 (date 2026-08-16)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 6d0417e4e1cf66fd917f06f0454958362714ef7d c53c70ec289ee12f20c4f1b2fbfd151762c01f67 git Not specified
CNA Linux Linux affected 6d0417e4e1cf66fd917f06f0454958362714ef7d 44fc74069d8988f2825246f9401218e29de2c0ab git Not specified
CNA Linux Linux affected eb8b860e87b296bd1874c79a668081efd00f9754 git Not specified
CNA Linux Linux affected 94bf6380e936339a700c0b3171a49baf512aa70b git Not specified
CNA Linux Linux affected 6.12.28 6.13 semver Not specified
CNA Linux Linux affected 6.14.6 6.15 semver Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 7.1.8 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/44fc74069d8988f2825246f9401218e29de2c0ab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c53c70ec289ee12f20c4f1b2fbfd151762c01f67 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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