In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible double free in ocxl_file_register_afu info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again. Fix this by adding free_minor() and return to err_unregister error path.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

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:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5c cve-icon cve-icon
https://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685 cve-icon cve-icon
https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491e cve-icon cve-icon
https://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97b cve-icon cve-icon
https://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25 cve-icon cve-icon
https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022600-CVE-2022-49455-a338@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-49455 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-49455 cve-icon
History

Wed, 01 Oct 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Mon, 17 Mar 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-415
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Metrics 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'}

 cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Thu, 27 Feb 2025 01:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 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'}

threat_severity

Moderate

Wed, 26 Feb 2025 02:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible double free in ocxl_file_register_afu info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again. Fix this by adding free_minor() and return to err_unregister error path.
Title misc: ocxl: fix possible double free in ocxl_file_register_afu
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-26T02:13:04.116Z

Updated: 2025-10-01T19:46:47.666Z

Reserved: 2025-02-26T02:08:31.573Z

Link: CVE-2022-49455

cve-icon Vulnrichment

Updated: 2025-10-01T16:47:30.289Z

cve-icon NVD

Status : Modified

Published: 2025-02-26T07:01:21.857

Modified: 2025-10-01T20:16:21.780

Link: CVE-2022-49455

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-26T00:00:00Z

Links: CVE-2022-49455 - Bugzilla