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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Jun 20, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 20, 2024 |
| Suse | — | Upgrade kernel-rt_debugUpgrade ocfs2-kmp-azureUpgrade cluster-md-kmp-azureUpgrade cluster-md-kmp-rtUpgrade kernel-azureUpgrade kernel-rt-vdsoUpgrade kernel-rt-optionalUpgrade gfs2-kmp-rtUpgrade kselftests-kmp-azureUpgrade kernel-azure-extraUpgrade kernel-rt_debug-develUpgrade gfs2-kmp-azureUpgrade kernel-azure-optionalUpgrade kernel-syms-azureUpgrade ocfs2-kmp-rtUpgrade kernel-source-rtUpgrade kernel-source-azureUpgrade kernel-devel-azureUpgrade kernel-azure-livepatch-develUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-azure-develUpgrade kernel-azure-vdsoUpgrade dlm-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade dlm-kmp-azureUpgrade kernel-rtUpgrade kernel-rt_debug-vdsoUpgrade kernel-rt-livepatchUpgrade kernel-rt-extraUpgrade reiserfs-kmp-azureUpgrade reiserfs-kmp-rtUpgrade kernel-devel-rtUpgrade kernel-syms-rtUpgrade kernel-rt-develUpgrade kselftests-kmp-rt | Aug 9, 2024 | Jun 20, 2024 |
| Ubuntu | — | Upgrade linux-intel-iotg-5.15 | Nov 19, 2024 | Jun 20, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 20, 2024 |
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