Double free in Linux kernel - CVE-2022-48900
Published: August 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96439
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2022-48900
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within the xennet_get_responses(), xennet_poll() and setup_netfront() functions in drivers/net/xen-netfront.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-48900
Install update from vendor's website.
Linux kernel - addressed in versions 4.9.306, 4.14.271, 4.19.234, 5.4.184, 5.10.105, 5.15.28, 5.16.14, 5.17
External References
- https://git.kernel.org/stable/c/c4497b057b14274e159434f0ed70439a21f3d2a9
- https://git.kernel.org/stable/c/1b9f4115738af90427a8c94a3980bc52fbb23296
- https://git.kernel.org/stable/c/c307029d811e03546d18d0e512fe295b3103b8e5
- https://git.kernel.org/stable/c/0e35f3ab69bcb01fdbf5aadc78f1731778963b1c
- https://git.kernel.org/stable/c/206c8e271ba2630f1d809123945d9c428f93b0f0
- https://git.kernel.org/stable/c/dea18aef2021022a568f4d385a1386f51a9df6ff
- https://git.kernel.org/stable/c/34630641e955f23ae06db178822d99d0a9d89b20
- https://git.kernel.org/stable/c/66e3531b33ee51dad17c463b4d9c9f52e341503d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.271
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.234
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.306
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.105
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.28
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.184