Memory leak in Linux kernel - CVE-2022-49052
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104355
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-2022-49052
CWE-ID: CWE-401
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 memory leak within the end_swap_bio_write(), end_swap_bio_read() and swap_readpage() functions in mm/page_io.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49052
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/12ba1d38115a101c45d8e0ca3aa1181fd148e57f
- https://git.kernel.org/stable/c/20ed94f8181a25212e7404e44958e234f407624b
- https://git.kernel.org/stable/c/afac4b88699a06c8b9369f9d759a1ec3c254b788
- https://git.kernel.org/stable/c/e914d8f00391520ecc4495dd0ca0124538ab7119
- https://git.kernel.org/stable/c/f098f8b9820fe3f2e41aefc4329dfe8a3859d1c1
- https://git.kernel.org/stable/c/f86d55cf616199404c05f5b0c5c41b17351baa02
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.242