CVE-2017-9605

The vmwgbsurfacedefineioctl function (accessible via DRMIOCTLVMWGBSURFACECREATE) in drivers/gpu/drm/vmwgfx/vmwgfxsurface.c in the Linux kernel through 4.11.4 defines a backuphandle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backuphandle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.

References

Affected packages

Git /

Affected ranges

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-9605.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "4.11.4"
            }
        ]
    }
]