#VU96332 Use-after-free in Linux kernel - CVE-2022-48878
Published: August 21, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96332
Vulnerability risk: Low
CVSSv4.0: 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-2022-48878
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
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 qca_serdev_shutdown() function in drivers/bluetooth/hci_qca.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/e84ec6e25df9bb0968599e92eacedaf3a0a5b587
- https://git.kernel.org/stable/c/908d1742b6e694e84ead5c62e4b7c1bfbb8b46a3
- https://git.kernel.org/stable/c/ea3ebda47dd56f6e1c62f2e0e1b6e1b0a973e447
- https://git.kernel.org/stable/c/272970be3dabd24cbe50e393ffee8f04aec3b9a8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.165
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.90
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2