VDB

DEBIAN-CVE-2022-48735

DEBIAN-CVE-2022-48735 PUBLISHED CVSS 7.800000190734863 HIGH

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix UAF of leds class devs at unbinding The LED class devices that are created by HD-audio codec drivers are registered via devm_led_classdev_register() and associated with the HD-audio codec device. Unfortunately, it turned out that the devres release doesn't work for this case; namely, since the codec resource release happens before the devm call chain, it triggers a NULL dereference or a UAF for a stale set_brightness_delay callback. For fixing the bug, this patch changes the LED class device register and unregister in a manual manner without devres, keeping the instances in hda_gen_spec.

Risk Scores

CVSS 3.1
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:12linux0, 0, 0
Debian:14linux0, 0, 0
Debian:11linux5.10.46-5, 0, 5.10.70-1
Debian:13linux0, 0, 0

Timeline

  • Jun 20, 2024 CVE Published
  • Apr 28, 2026 CVE Updated
Open in Interactive Console →
$ Console Community · 100/wk Open console ›