Insufficient Initialization of kgsl_context Structure in kgsl_context_init() (CVE-2016-8479)

Release Date:

April 17, 2017

Affected Projects:

Android for MSM Firefox OS for MSM QRD Android

Advisory ID:

QCIR-2017-00016-1

CVE ID(s):

CVE-2016-8479

Summary:

The following security vulnerabilities have been identified: CVE-2016-8479 The kgsl_ioctl_drawctxt_create() function allocates an instance of "context" from heap but the kgsl_ioctl_drawctxt_destroy() function de-references the "context" before it is totally initialized.

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

CVE-2016-8479

https://source.codeaurora.org/quic/la//kernel/msm-3.18/commit/?id=1a9d60a353d6c8191cfec089f8cb502626bb0b0e
https://source.codeaurora.org/quic/la//kernel/msm-4.4/commit/?id=eed663a48bec729bb66aaad18ab3fac3b7269581

Acknowledgement:

This issue was reported to Google by an external security researcher. Qualcomm Innovation Center, Inc. (QuIC) thanks Google for bringing this issue to QuIC's attention.

Revisions:

Initial revision

Contact:

security-advisory@quicinc.com