Use-after-free in Linux kernel - CVE-2022-48735
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92896
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-48735
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the snd_hda_gen_spec_free() and create_mute_led_cdev() functions in sound/pci/hda/hda_generic.c. A local user can escalate privileges on the system.
How to mitigate CVE-2022-48735
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/a7de1002135cf94367748ffc695a29812d7633b5
- https://git.kernel.org/stable/c/0e629052f013eeb61494d4df2f1f647c2a9aef47
- https://git.kernel.org/stable/c/813e9f3e06d22e29872d4fd51b54992d89cf66c8
- https://git.kernel.org/stable/c/549f8ffc7b2f7561bea7f90930b6c5104318e87b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17