#VU104418 Use-after-free in Linux kernel - CVE-2022-49470
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104418
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-2022-49470
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 btmtksdio_recv_event() function in drivers/bluetooth/btmtksdio.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/01c6a899fa6be4f4cbf60c4f44f0f6691155415f
- https://git.kernel.org/stable/c/02ba31e09a26e8cd4582ac8e6163d80284997727
- https://git.kernel.org/stable/c/0fab6361c4ba17d1b43a991bef4238a3c1754d35
- https://git.kernel.org/stable/c/b3cec8a42fcd11d05313c724f27e01b1db77522c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.54