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CVE-2026-53071

nvd nist
Published: Jun 24, 2026Modified: Jul 22, 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: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del().

Affected (7)

Products: Linux: Linux Kernel
Linux
1 product
Linux Kernel
Configuration A
7 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
From 5.11 to 5.15.209
Linux Kernel
From 5.16 to 6.1.175
Linux Kernel
From 5.7 to 5.10.258
Linux Kernel
From 6.13 to 6.18.33
Linux Kernel
From 6.19 to 7.0.10
Linux Kernel
From 6.2 to 6.6.141
Linux Kernel
From 6.7 to 6.12.91

Related CWEs

CWE-414
Missing Lock Check
A product does not check to see if a lock is present before performing sensitive operations on a resource.
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
CWE-667
Improper Locking
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

References (14)

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
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Third Party Advisory

Timeline

No history available yet.