CVE-2022-50271

kernel: Linux kernel: Denial of Service due to memory allocation failure in vhost/vsock

Loading…

Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 15, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel's vhost/vsock component. A local user could trigger a memory allocation failure when copying large files over sftp (SSH File Transfer Protocol) over vsock (virtual socket). This issue occurs because the kernel's kmalloc function fails to allocate sufficient memory for larger packets, leading to a system crash and a Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-770 · Allocation of Resources Without Limits or Throttling