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CVE-2023-54214

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CVE-2023-54214

Published: Dec 30, 2025

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 - < b2fde8cb2a25125111f2144604e0e7c0ebcc4bba
affected
a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 - < a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49
affected
a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 - < 60aaccf16d1e099c16bebfb96428ae762cb528f7
affected
a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 - < b8ed41cc04fb74005aa51d17865ca3d022760335
affected
a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 - < 31a288a4df7f6a28e65da22a4ab2add4a963738e

+3 more versions

Linux

Linux

affected
3.5
unaffected
0 - < 3.5
unaffected
4.14.308 - <= 4.14.*
unaffected
4.19.276 - <= 4.19.*
unaffected
5.4.235 - <= 5.4.*

+5 more versions

References

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