CVE-2022-48735

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Source
https://cve.org/CVERecord?id=CVE-2022-48735
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48735.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-48735
Downstream
Related
Published
2024-06-20T11:13:22.065Z
Modified
2026-03-14T12:00:40.852228Z
Summary
ALSA: hda: Fix UAF of leds class devs at unbinding
Details

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 devmledclassdevregister() 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 setbrightness_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 hdagenspec.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48735.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
15509b6344726de22bdbfff88b65341dd0dd33af
Fixed
a7de1002135cf94367748ffc695a29812d7633b5
Fixed
0e629052f013eeb61494d4df2f1f647c2a9aef47
Fixed
813e9f3e06d22e29872d4fd51b54992d89cf66c8
Fixed
549f8ffc7b2f7561bea7f90930b6c5104318e87b

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48735.json"