CVE-2025-37792 Bluetooth: btrtl: Prevent potential NULL dereference

What is CVE-2025-37792?

CVE-2025-37792 is a medium-severity vulnerability in Debian Debian Linux, published on 1 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btrtl: Prevent potential NULL dereference

The btrtl_initialize() function checks that rtl_load_file() either had an error or it loaded a zero length file. However, if it loaded a zero length file then the error code is not set correctly. It results in an error pointer vs NULL bug, followed by a NULL pointer dereference. This was detected by Smatch:

drivers/bluetooth/btrtl.c:592 btrtl_initialize() warn: passing zero to 'ERR_PTR'

Weakness: CWE-476

Which versions are affected by CVE-2025-37792?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2025-37792?

Apply the vendor's patch.

Is CVE-2025-37792 being exploited?

There is no known exploitation of CVE-2025-37792 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2025-37792, DEBIAN-CVE-2025-37792, GHSA-xgcc-8xxp-phhm, ROOT-OS-DEBIAN-12-CVE-2025-37792, ROOT-OS-UBUNTU-2204-CVE-2025-37792, ROOT-OS-UBUNTU-2404-CVE-2025-37792 and 1 more.