AZL-96296
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96296.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-96296
- Upstream
- Published
- 2026-08-15T13:17:49Z
- Modified
- 2026-08-31T05:26:27Z
- Summary
- CVE-2026-74445 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: reject DXBINDQUERY without a DX context
vmwcmddxbindquery() unconditionally dereferences swcontext->dxctxnode->ctx. Userspace can trigger a NULL pointer dereference from any render-node fd by submitting an execbuf with dxcontexthandle == SVGA3DINVALIDID and a SVGA3DCMDDXBINDQUERY opcode in the command stream: dxctxnode is left NULL and the kernel oopses on the assignment. The same NULL is then re-read in vmwresourcesreserve() via vmwcontextgetdxquery_mob().
All sibling DX handlers fail-close on a missing dxctxnode using VMWGETCTX_NODE(). Use the same pattern here, returning -EINVAL up front before any relocation state is published.
- References