CVE-2024-57987: Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-27 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: check for NULL in btrtl_setup_realtek() If insert an USB dongle which chip is not maintained in ic_id_table, it will hit the NULL point accessed. Add a null point check to avoid the Kernel Oops.

Affected products

Linux kernel: from 6.10 before 6.12.13; from 6.13 before 6.13.2 — fixed in 6.12.13, 6.13.2

How to fix

Upgrade to a fixed version: Linux kernel 6.12.13, 6.13.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/02f9da874e5e4626f81772eacc18967921998a71
https://git.kernel.org/stable/c/1158ad8e8abb361d4b2aaa010c9af74de20ab82b
https://git.kernel.org/stable/c/3c15082f3567032d196e8760753373332508c2ca

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