CVE-2022-48735
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ALSA: hda: Fix UAF of leds class devs at unbinding
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 15509b6344726de22bdbfff88b65341dd0dd33af | affected | git | a7de1002135cf94367748ffc695a29812d7633b5 | Unavailable | None listed |
| 15509b6344726de22bdbfff88b65341dd0dd33af | affected | git | 0e629052f013eeb61494d4df2f1f647c2a9aef47 | Unavailable | None listed |
| 15509b6344726de22bdbfff88b65341dd0dd33af | affected | git | 813e9f3e06d22e29872d4fd51b54992d89cf66c8 | Unavailable | None listed |
| 15509b6344726de22bdbfff88b65341dd0dd33af | affected | git | 549f8ffc7b2f7561bea7f90930b6c5104318e87b | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.9 | Unavailable | None listed |
| 5.10.99 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.22 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.16.8 | unaffected | semver | Unavailable | 5.16.* | None listed |
| 5.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |