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
medium
medium
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: 2026-09-22 20:21 UTC (History)
2 users (show)

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

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:70402 0 None None None 2026-09-22 20:20:59 UTC
Red Hat Product Errata RHSA-2026:70403 0 None None None 2026-09-22 19:30:08 UTC

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
Comment 5 Jon Orris 2026-09-22 19:30:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:70403 https://access.redhat.com/errata/RHSA-2026:70403
Comment 6 Jon Orris 2026-09-22 20:20:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:70402 https://access.redhat.com/errata/RHSA-2026:70402
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