In the Linux kernel, the following vulnerability has been resolved:

i2c: acpi: fix resource leak in reconfiguration device addition

acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a
reference on the adapter which is never released which will result in a
reference count leak and render the adapter unremovable. Make sure to
put the adapter after creating the client in the same manner that we do
for OF.

[wsa: fixed title]

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 0.00022.

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
525e6fabeae286848592363bda13bc34b59bb5ac affected < b8090a84d7758b929d348bafbd86bb7a10c5fb63
525e6fabeae286848592363bda13bc34b59bb5ac affected < 3d9d458a8aaafa47268ea4f1b4114a9f12927989
525e6fabeae286848592363bda13bc34b59bb5ac affected < 60bacf259e8c2eb2324f3e13275200baaee9494b
525e6fabeae286848592363bda13bc34b59bb5ac affected < f86de018fd7a24ee07372d55ffa7824f0c674a95
525e6fabeae286848592363bda13bc34b59bb5ac affected < 90f1077c9184ec2ae9989e4642f211263f301694
525e6fabeae286848592363bda13bc34b59bb5ac affected < 6558b646ce1c2a872fe1c2c7cb116f05a2c1950f
Linux Linux affected
Version Status Constraints
4.8 affected —
0 unaffected < 4.8
4.14.251 unaffected ≤ 4.14.*
4.19.211 unaffected ≤ 4.19.*
5.4.153 unaffected ≤ 5.4.*
5.10.73 unaffected ≤ 5.10.*
5.14.12 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: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:*:*:*:*:*:*

No data.

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Advisories

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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/3d9d458a8aaafa47268ea4f1b4114a9f12927989 cve-icon cve-icon
https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b cve-icon cve-icon
https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f cve-icon cve-icon
https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694 cve-icon cve-icon
https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63 cve-icon cve-icon
https://git.kernel.org/stable/c/f86de018fd7a24ee07372d55ffa7824f0c674a95 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024052156-CVE-2021-47425-8e9f@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2021-47425 cve-icon
https://www.cve.org/CVERecord?id=CVE-2021-47425 cve-icon
History

Tue, 23 Sep 2025 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401
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:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T07:10:38.420Z

Reserved: 2024-05-21T14:58:30.827Z

Link: CVE-2021-47425

cve-icon Vulnrichment

Updated: 2024-08-04T05:39:59.439Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-21T15:15:27.930

Modified: 2025-09-23T20:18:04.767

Link: CVE-2021-47425

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-21T00:00:00Z

Links: CVE-2021-47425 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T22:45:18Z

Weaknesses