AZL-99615
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99615.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-99615
- Upstream
- Published
- 2026-09-04T16:18:01Z
- Modified
- 2026-09-05T14:17:03.798642473Z
- Summary
- CVE-2026-80765 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
HID: hyperv: validate initial device info bounds
The Hyper-V synthetic HID host supplies SYNTHHIDINITIALDEVICEINFO messages that contain a HID descriptor followed by the report descriptor bytes. mousevsconreceivedeviceinfo() trusts bLength and wDescriptorLength without checking that the received packet contains both byte ranges.
A malformed host or backend message can therefore make the guest read past the received VMBus packet while copying the report descriptor. Pass the received initial-device-info size into the parser and reject descriptor lengths that exceed the packet.
Impact: A malicious Hyper-V host or backend can crash a guest by sending a short initial device-info message with an oversized HID report descriptor length.
- References