In the Linux kernel, the following vulnerability has been resolved: iommu/omap: Fix buffer overflow in debugfs There are two issues here: 1) The "len" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a buffer overflow. 2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.

Metrics

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.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4 cve-icon cve-icon
https://git.kernel.org/stable/c/184233a5202786b20220acd2d04ddf909ef18f29 cve-icon cve-icon
https://git.kernel.org/stable/c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04 cve-icon cve-icon
https://git.kernel.org/stable/c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782 cve-icon cve-icon
https://git.kernel.org/stable/c/648472df221f2bbffb433b964bcb87baccc586d8 cve-icon cve-icon
https://git.kernel.org/stable/c/706e359cf046c142db290244c3f4938b20fbe805 cve-icon cve-icon
https://git.kernel.org/stable/c/9814cc350e0765ce69244bf55ae4c8b29facd27e cve-icon cve-icon
https://git.kernel.org/stable/c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854 cve-icon cve-icon
https://git.kernel.org/stable/c/ec53b99b6b9da8b501f001595a6260c03b42d5b7 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091558-CVE-2022-50301-c26c@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50301 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50301 cve-icon
History

Wed, 17 Sep 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Tue, 16 Sep 2025 00:15:00 +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

Mon, 15 Sep 2025 15:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: iommu/omap: Fix buffer overflow in debugfs There are two issues here: 1) The "len" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a buffer overflow. 2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.
Title iommu/omap: Fix buffer overflow in debugfs
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-15T14:45:57.019Z

Updated: 2025-09-15T14:45:57.019Z

Reserved: 2025-09-15T14:18:36.812Z

Link: CVE-2022-50301

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-15T15:15:41.597

Modified: 2025-09-15T15:22:27.090

Link: CVE-2022-50301

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-09-15T00:00:00Z

Links: CVE-2022-50301 - Bugzilla