Bug 2365435 (CVE-2023-53145) - CVE-2023-53145 kernel: Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition
Summary: CVE-2023-53145 kernel: Bluetooth: btsdio: fix use after free bug in btsdio_re...
Keywords:
Status: NEW
Alias: CVE-2023-53145
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: 2025-05-10 15:01 UTC by OSIDB Bzimport
Modified: 2025-05-12 05:24 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-05-10 15:01:13 UTC 
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition

In btsdio_probe, the data->work is bound with btsdio_work. It will be
started in btsdio_send_frame.

If the btsdio_remove runs with a unfinished work, there may be a race
condition that hdev is freed but used in btsdio_work. Fix it by
canceling the work before do cleanup in btsdio_remove.
Comment 1 Michal Findra 2025-05-12 05:22:16 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025051018-CVE-2023-53145-281f@gregkh/T
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