CVE-2021-47258

MediumCVSS 5.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-401

Affected software

VendorProductVersions
LinuxLinux>= 1fa5ae857bb14f6046205171d98506d8112dd74e, < 8958181c1663e24a13434448e7d6b96b5d04900a; >= 1fa5ae857bb14f6046205171d98506d8112dd74e, < db08ce595dd64ea9859f7d088b51cbfc8e685c66; >= 1fa5ae857bb14f6046205171d98506d8112dd74e, < 2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a; >= 1fa5ae857bb14f6046205171d98506d8112dd74e, < 79296e292d67fa7b5fb8d8c27343683e823872c8; >= 1fa5ae857bb14f6046205171d98506d8112dd74e, < 7a696ce1d5d16a33a6cd6400bbcc0339b2460e11; >= 1fa5ae857bb14f6046205171d98506d8112dd74e, < 45d83db4728127944b237c0c8248987df9d478e7; >= 1fa5ae857bb14f6046205171d98506d8112dd74e, < 66a834d092930cf41d809c0e989b13cd6f9ca006
LinuxLinux2.6.30

References

Timeline

Published
May 21, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

Related CVEs from 2021

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