CVE-2021-47258
Linux Kernel SCSI Device Name Leak Vulnerability
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.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
April 30, 2025, 3:05 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47258.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47258 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47258 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Apr. 30, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.237 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.195 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.126 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.44 Added Reference Type CVE: https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a Added Reference https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7 Added Reference https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006 Added Reference https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8 Added Reference https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11 Added Reference https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a Added Reference https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added 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. Added Reference kernel.org https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47258 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47258
weaknesses.