AZL-106404

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Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-106404.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-106404
Upstream
Published
2026-10-06T09:18:02Z
Modified
2026-10-07T14:17:06Z
Summary
CVE-2026-98181 affecting package kernel 6.6.157.1-1
Details

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

drm/gud: fix out-of-bounds write in gud_plane_atomic_check()

The plane property loop uses req->properties[num_properties + i] as write index while simultaneously incrementing num_properties inside the loop. At iteration i, num_properties has also incremented by i, so the write is done at initial_num_properties + 2*i, skipping every other index and advancing by 2 per iteration.

With just 2 connector and 32 plane properties the last write happens at index 64, one slot past the end of the 64-slot (indices 0–63) allocation. A USB device can trigger OOB by advertising the maximum number of properties.

Fix by dropping the redundant + i; num_properties is already the correct running index, as gud_connector_fill_properties() fills the preceding slots.

References

Affected packages

Azure Linux:3 / kernel

Package

Name
kernel
Purl
pkg:rpm/azure-linux/kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
6.6.157.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-106404.json"