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CVE-2026-43018

nvd nist
Published: May 1, 2026Modified: Oct 19, 2026

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8.8
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

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.

Affected (11)

Products: Linux: Linux Kernel
Linux
1 product
Linux Kernel
Configuration A
11 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
5.17 ≤ version < 6.1.168
Linux Kernel
6.13 ≤ version < 6.18.22
Linux Kernel
6.19 ≤ version < 6.19.12
Linux Kernel
6.2 ≤ version < 6.6.134
Linux Kernel
6.7 ≤ version < 6.12.81
Linux Kernel
Version 7.0 rc1
Linux Kernel
Version 7.0 rc2
Linux Kernel
Version 7.0 rc3
Linux Kernel
Version 7.0 rc4
Linux Kernel
Version 7.0 rc5
Linux Kernel
Version 7.0 rc6

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch

Timeline

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