Use-after-free in Linux kernel - CVE-2022-49400
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104428
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-2022-49400
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 free_conf() function in drivers/md/raid0.c. A local user can escalate privileges on the system.
How to mitigate CVE-2022-49400
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/0f2571ad7a30ff6b33cde142439f9378669f8b4f
- https://git.kernel.org/stable/c/7da3454a65f8a56e65dfb44fa0ccac08cbc2f5a1
- https://git.kernel.org/stable/c/b7a51df785031cc49caf1c59766ca89cfa97b54b
- https://git.kernel.org/stable/c/f63fd1e0e0fc158023cc67ea6a07e278019061ba
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.46