CVE-2022-50761
kernel: Linux kernel (x86/xen): Memory leak in CPU lock initialization leading to denial of service.
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · June 30, 2026
Description
A flaw was found in the Linux kernel's x86/xen component. A local user could exploit a memory leak vulnerability during the initialization of the CPU lock in the xen_init_lock_cpu() function. If a specific internal function fails after memory allocation, the allocated memory is not properly released. This can lead to resource exhaustion and a Denial of Service (DoS) condition on the affected system.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime