CVE-2021-47258

MEDIUM

Linux Kernel < 4.9.273 - Memory Leak

Title source: rule

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix error handling of scsi_host_alloc() After device is initialized via device_initialize(), or its name is set via dev_set_name(), the device has to be freed via put_device(). Otherwise device name will be leaked because it is allocated dynamically in dev_set_name(). Fix the leak by replacing kfree() with put_device(). Since scsi_host_dev_release() properly handles IDA and kthread removal, remove special-casing these from the error handling as well.

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

CWE
CWE-401
Status published

Affected Products (6)

linux/linux_kernel < 4.9.273
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel

Timeline

Published May 21, 2024
Tracked Since Feb 18, 2026