CVE-2021-47258

low

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.

References

https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66

https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a

https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11

https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8

https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006

https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7

https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a

Details

Source: Mitre, NVD

Published: 2024-05-21

Updated: 2024-05-21

Risk Information

CVSS v2

Base Score: 1.7

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 3.3

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Severity: Low