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DEBIAN-CVE-2025-71082

DEBIAN-CVE-2025-71082 PUBLISHED CVSS 7.800000190734863 HIGH

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.

Risk Scores

CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Debian:14linux6.17.2-1~exp1, 6.12.41-1, 6.12.43-1
Debian:11linux-6.16.1.129-1, 6.1.147-1, 6.1.140-1
Debian:13linux6.12.41-1, 0, *
Debian:11linux6.10-1, 6.19, 6.19
Debian:12linux6.1.27-1, 6.1.133-1, 6.1.135-1
LinuxLinux

Timeline

  • Jan 13, 2026 CVE Published
  • Apr 28, 2026 CVE Updated
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