CVE-2025-71082 Affecting kernel-rt-debug-devel package, versions <0:4.18.0-553.166.1.rt7.507.el8_10


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELRTDEBUGDEVEL-20075672
  • published24 Sept 2026
  • disclosed22 Sept 2026

Introduced: 22 Sep 2026

NewCVE-2025-71082  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-debug-devel to version 0:4.18.0-553.166.1.rt7.507.el8_10 or higher.
This issue was patched in ALSA-2026:70403.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel package and not the kernel-rt-debug-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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

Bluetooth: btusb: revert use of devm_kzalloc in btusb

This reverts commit 98921dbd00c4e ("Bluetooth: Use devm_kzalloc in btusb.c file").

In btusb_probe(), we use devm_kzalloc() to allocate the btusb data. This ties the lifetime of all the btusb data to the binding of a driver to one interface, INTF. In a driver that binds to other interfaces, ISOC and DIAG, this is an accident waiting to happen.

The issue is revealed in btusb_disconnect(), where calling usb_driver_release_interface(&btusb_driver, data->intf) will have devm free the data that is also being used by the other interfaces of the driver that may not be released yet.

To fix this, revert the use of devm and go back to freeing memory explicitly.

CVSS Base Scores

version 3.1