#VU96329 Use-after-free in Linux kernel - CVE-2022-48872
Published: August 21, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96329
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-2022-48872
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 fastrpc_map_put() function in drivers/misc/fastrpc.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/556dfdb226ce1e5231d8836159b23f8bb0395bf4
- https://git.kernel.org/stable/c/b171d0d2cf1b8387c72c8d325c5d5746fa271e39
- https://git.kernel.org/stable/c/61a0890cb95afec5c8a2f4a879de2b6220984ef1
- https://git.kernel.org/stable/c/079c78c68714f7d8d58e66c477b0243b31806907
- https://git.kernel.org/stable/c/96b328d119eca7563c1edcc4e1039a62e6370ecb
- 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/v5.x/ChangeLog-5.4.230
- 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