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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
95118dd4edfec950898a00180c6f998df0a6406d affected < 59eecf0ffde15670e6a5e10c47be67f73d843b20
95118dd4edfec950898a00180c6f998df0a6406d affected < 5fb69e1eeea9d6cba80517e9f058b56b34bc3a81
95118dd4edfec950898a00180c6f998df0a6406d affected < 7cadb03be37e761130edb153544fe0770a842b19
95118dd4edfec950898a00180c6f998df0a6406d affected < 1d0bdbfe3e91c11f0a704c52443a9446a10d699c
95118dd4edfec950898a00180c6f998df0a6406d affected < ea3cd36d7382d5f8309df04c275d20df139ed42c
95118dd4edfec950898a00180c6f998df0a6406d affected < b255531b27da336571411248c2a72a350662bd09
Linux Linux affected
Version Status Constraints
5.17 affected —
0 unaffected < 5.17
6.1.168 unaffected ≤ 6.1.*
6.6.134 unaffected ≤ 6.6.*
6.12.81 unaffected ≤ 6.12.*
6.18.22 unaffected ≤ 6.18.*
6.19.12 unaffected ≤ 6.19.*
7.0 unaffected ≤ *

No data.

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c cve-icon cve-icon
https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20 cve-icon cve-icon
https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81 cve-icon cve-icon
https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19 cve-icon cve-icon
https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09 cve-icon cve-icon
https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c cve-icon cve-icon
History

Fri, 01 May 2026 14:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-01T14:15:22.308Z

Reserved: 2026-05-01T14:12:55.975Z

Link: CVE-2026-43018

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-01T15:16:45.980

Modified: 2026-05-01T15:24:14.893

Link: CVE-2026-43018

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.