Information Exposure in MSM_DMA_IORBUF Ioctl Command in dma_test Device (CVE-2016-3894)

Release Date:

October 3, 2016

Affected Projects:

Android for MSMFirefox OS for MSMQRD Android

Advisory ID:

QCIR-2016-00042-1

CVE ID(s):

CVE-2016-3894

Summary:

When invoking the MSM_DMA_IORBUF ioctl command on the dma_test device, an information disclosure occurs when uninitialized kernel memory is read.

Access Vector: Local
Security Risk: High
Access Vector: Local

Affected Versions:

All Android releases from CAF using the Linux kernel.

Patch:

We advise customers to apply the following patches:

Individual Patches

Acknowledgement:

Qualcomm Innovation Center, Inc. (QuIC) thanks Google for bringing this issue to our attention. This issue was reported to Google through the Android Security Rewards program.

Revisions:

Initial

Contact:

security-advisory@quicinc.com