Bug 2426069 (CVE-2023-54214) - CVE-2023-54214 kernel: Bluetooth: L2CAP: Fix potential user-after-free
Summary: CVE-2023-54214 kernel: Bluetooth: L2CAP: Fix potential user-after-free
Keywords:
Status: NEW
Alias: CVE-2023-54214
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-30 13:06 UTC by OSIDB Bzimport
Modified: 2025-12-31 11:32 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-12-30 13:06:30 UTC 
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: L2CAP: Fix potential user-after-free

This fixes all instances of which requires to allocate a buffer calling
alloc_skb which may release the chan lock and reacquire later which
makes it possible that the chan is disconnected in the meantime.
Comment 1 Alexander B 2025-12-31 11:28:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123025-CVE-2023-54214-c4a6@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.