CVE-2021-47480
Apache Linux SCSI Host.sys Refcount Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Put LLD module refcnt after SCSI device is released SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler. Make sure to put LLD module refcnt after SCSI device is released. Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by Changhui and Yi.
INFO
Published Date :
May 22, 2024, 9:15 a.m.
Last Modified :
Nov. 21, 2024, 6:36 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2021-47480.
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).
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The following list is the news that have been mention
CVE-2021-47480 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47480 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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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/1105573d964f7b78734348466b01f5f6ba8a1813 Added Reference https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b Added Reference https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee Added Reference https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f Added Reference https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428 Added Reference https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0 Added Reference https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f Added Reference https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836 -
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. 22, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: scsi: core: Put LLD module refcnt after SCSI device is released SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler. Make sure to put LLD module refcnt after SCSI device is released. Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by Changhui and Yi. Added Reference kernel.org https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f [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-2021-47480 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-2021-47480
weaknesses.