Resource exhaustion in Linux kernel - CVE-2022-0480
Published: March 13, 2024
Vulnerability identifier: #VU87505
CSH Severity: Low
CVSS v4.0: 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-2022-0480
CWE-ID: CWE-400
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 perform a denial of service (DoS) attack.
The vulnerability exists due to memcg does not properly control consumption of internal resources within the filelock_init() function in fs/locks.c. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.
How to mitigate CVE-2022-0480
Install updates from vendor's website.
Sources
- https://bugzilla.redhat.com/show_bug.cgi?id=2049700
- https://github.com/kata-containers/kata-containers/issues/3373
- https://access.redhat.com/security/cve/CVE-2022-0480
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f12156dff2862ac54235fc72703f18770769042
- https://ubuntu.com/security/CVE-2022-0480
- https://lore.kernel.org/linux-mm/20210902215519.AWcuVc3li%25akpm%40linux-foundation.org/