Bug 2395674 (CVE-2023-53293) - CVE-2023-53293 kernel: Bluetooth: btrtl: check for NULL in btrtl_set_quirks()
Summary: CVE-2023-53293 kernel: Bluetooth: btrtl: check for NULL in btrtl_set_quirks()
Keywords:
Status: NEW
Alias: CVE-2023-53293
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-16 09:02 UTC by OSIDB Bzimport
Modified: 2025-09-16 14:02 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-09-16 09:02:37 UTC 
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btrtl: check for NULL in btrtl_set_quirks()

The btrtl_set_quirks() has accessed btrtl_dev->ic_info->lmp_subver since
b8e482d02513. However, if installing a Realtek Bluetooth controller
without the driver supported, it will hit the NULL point accessed.

Add a check for NULL to avoid the Kernel Oops.
Comment 1 Keith Grant 2025-09-16 13:59:43 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091626-CVE-2023-53293-73cb@gregkh/T
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