#VU94392 Memory leak in Linux kernel - CVE-2022-48839
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94392
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-2022-48839
CWE-ID: CWE-401
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 memory leak within the tpacket_rcv() and packet_recvmsg() functions in net/packet/af_packet.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/b9d5772d60f8e7ef34e290f72fc20e3a4883e7d0
- https://git.kernel.org/stable/c/b1e27cda1e3c12b705875bb7e247a97168580e33
- https://git.kernel.org/stable/c/a33dd1e6693f80d805155b3f69c18c2f642915da
- https://git.kernel.org/stable/c/268dcf1f7b3193bc446ec3d14e08a240e9561e4d
- https://git.kernel.org/stable/c/70b7b3c055fd4a464da8da55ff4c1f84269f9b02
- https://git.kernel.org/stable/c/a055f5f2841f7522b44a2b1eccb1951b4b03d51a
- https://git.kernel.org/stable/c/ef591b35176029fdefea38e8388ffa371e18f4b2
- https://git.kernel.org/stable/c/c700525fcc06b05adfea78039de02628af79e07a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.273
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.236
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.308
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.108
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.31
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.187