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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00025.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < 1105573d964f7b78734348466b01f5f6ba8a1813
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < 8e4814a461787e15a31d322d9efbe0d4f6822428
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < 61a0faa89f21861d1f8d059123b5c285a5d9ffee
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < c2df161f69fb1c67f63adbd193368b47f511edc0
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < 1ce287eff9f23181d5644db787f472463a61f68b
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < 7b57c38d12aed1b5d92f74748bed25e0d041729f
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < f30822c0b4c35ec86187ab055263943dc71a6836
65110b2168950a19cc78b5027ed18cb811fbdae8 affected < f2b85040acec9a928b4eb1b57a989324e8e38d3f
Linux Linux affected
Version Status Constraints
2.6.16 affected —
0 unaffected < 2.6.16
4.4.292 unaffected ≤ 4.4.*
4.9.290 unaffected ≤ 4.9.*
4.14.255 unaffected ≤ 4.14.*
4.19.216 unaffected ≤ 4.19.*
5.4.158 unaffected ≤ 5.4.*
5.10.78 unaffected ≤ 5.10.*
5.14.17 unaffected ≤ 5.14.*
5.15 unaffected ≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813 cve-icon cve-icon
https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b cve-icon cve-icon
https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee cve-icon cve-icon
https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f cve-icon cve-icon
https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428 cve-icon cve-icon
https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0 cve-icon cve-icon
https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f cve-icon cve-icon
https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024052237-CVE-2021-47480-eaa0@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2021-47480 cve-icon
https://www.cve.org/CVERecord?id=CVE-2021-47480 cve-icon
History

Mon, 29 Sep 2025 16:45:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 6.0, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H'}

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Mon, 04 Nov 2024 12:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 12 Sep 2024 08:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-18T11:37:39.221Z

Reserved: 2024-05-22T06:20:56.200Z

Link: CVE-2021-47480

cve-icon Vulnrichment

Updated: 2024-08-04T05:39:59.500Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-22T09:15:09.907

Modified: 2025-09-29T16:43:08.450

Link: CVE-2021-47480

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-05-22T00:00:00Z

Links: CVE-2021-47480 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T22:23:10Z

Weaknesses