#VU104774 Use of uninitialized resource in Linux kernel - CVE-2022-49081
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104774
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49081
CWE-ID: CWE-908
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 perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the __kmap_local_sched_out() and __kmap_local_sched_in() functions in mm/highmem.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/66f133ceab7456c789f70a242991ed1b27ba1c3d
- https://git.kernel.org/stable/c/7dd5b3b97716a611fcf67d92fd2370fcb8d50372
- https://git.kernel.org/stable/c/85550b0f5fa5dd3c30469ea702c44444ef242c83
- https://git.kernel.org/stable/c/c21d040de6225414547d9bd31cd200f290991c85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34