#VU111526 Use-after-free in Linux kernel - CVE-2022-49939
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111526
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-2022-49939
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 binder_inc_ref_for_node() function in drivers/android/binder.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/06e5b43ca4dab06a92bf4c2f33766e6fb11b880a
- https://git.kernel.org/stable/c/229f47603dd306bc0eb1a831439adb8e48bb0eae
- https://git.kernel.org/stable/c/30d0901b307f27d36b2655fb3048cf31ee0e89c0
- https://git.kernel.org/stable/c/603a47f2ae56bf68288784d3c0a8c5b8e0a827ed
- https://git.kernel.org/stable/c/9629f2dfdb1dad294b468038ff8e161e94d0b609
- https://git.kernel.org/stable/c/a0e44c64b6061dda7e00b7c458e4523e2331b739
- https://git.kernel.org/stable/c/c2a4b5dc8fa71af73bab704d0cac42ac39767ed6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.66