A vulnerability in the Linux kernel's igorplugusb driver related to USB request structure handling has been resolved. (CVE-2026-46091)
A vulnerability in the Linux kernel's igorplugusb driver related to USB request structure handling has been resolved. The issue involves improper handling of DMA coherency rules for USB control requests, which must be allocated separately to obey DMA coherency. This vulnerability affects version 3.0 of the affected product. The impact is limited to availability, with no confidentiality or integrity impact reported. No known exploits are in the wild, and no patch links are provided in the data.
AI Analysis
Technical Summary
The vulnerability concerns the igorplugusb driver in the Linux kernel where the USB request structure in control requests can be subject to DMA on some host controllers. The structure must follow DMA coherency rules, requiring separate allocation to prevent issues. Failure to do so could lead to availability problems. This issue has been resolved in version 3.0 of the affected product.
Potential Impact
The vulnerability impacts system availability (denial of service or similar), with no impact on confidentiality or integrity. There are no known exploits in the wild. The vulnerability requires local attack vector with low complexity and low privileges, and no user interaction is needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or fix links are provided in the available data. Monitor the Microsoft Security Response Center advisory (msrc_CVE-2026-46091) for updates and apply any official fixes once available.
A vulnerability in the Linux kernel's igorplugusb driver related to USB request structure handling has been resolved. (CVE-2026-46091)
Description
A vulnerability in the Linux kernel's igorplugusb driver related to USB request structure handling has been resolved. The issue involves improper handling of DMA coherency rules for USB control requests, which must be allocated separately to obey DMA coherency. This vulnerability affects version 3.0 of the affected product. The impact is limited to availability, with no confidentiality or integrity impact reported. No known exploits are in the wild, and no patch links are provided in the data.
CVSS v3.1
Score 5.5medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability concerns the igorplugusb driver in the Linux kernel where the USB request structure in control requests can be subject to DMA on some host controllers. The structure must follow DMA coherency rules, requiring separate allocation to prevent issues. Failure to do so could lead to availability problems. This issue has been resolved in version 3.0 of the affected product.
Potential Impact
The vulnerability impacts system availability (denial of service or similar), with no impact on confidentiality or integrity. There are no known exploits in the wild. The vulnerability requires local attack vector with low complexity and low privileges, and no user interaction is needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or fix links are provided in the available data. Monitor the Microsoft Security Response Center advisory (msrc_CVE-2026-46091) for updates and apply any official fixes once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-46091
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- 3.1
Threat ID: 6a18ab8ae29bf47b50289142
Added to database: 05/28/2026, 20:54:34 UTC
Last enriched: 06/26/2026, 23:38:27 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 36
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