Use-after-free in Linux kernel - CVE-2022-48854
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94413
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2022-48854
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the arc_mdio_probe() function in drivers/net/ethernet/arc/emac_mdio.c. A local user can escalate privileges on the system.
Affected software
Linux kernel
How to mitigate CVE-2022-48854
Install update from vendor's website.
Linux kernel - addressed in versions 5.16.15, 5.17