The adreno_perfcounter_query_group function in drivers/gpu/msm/adreno_perfcounter.c in the Adreno GPU driver for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, uses an incorrect integer data type, which allows attackers to cause a denial of service (integer overflow, heap-based buffer overflow, and incorrect memory allocation) or possibly have unspecified other impact via a crafted IOCTL_KGSL_PERFCOUNTER_QUERY ioctl call.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://codeaurora.org/cgit/quic/la/kernel/msm-3.18/commit/?id=27c95b64b2e4b5ff1288cbaa6e353dd803d71576 | mailing list third party advisory patch |
| https://www.codeaurora.org/buffer-overflow-adreno-gpu-msm-driver-cve-2016-2062 | broken link |
| http://www.securitytracker.com/id/1035766 | vdb entry third party advisory |
| http://source.android.com/security/bulletin/2016-06-01.html | patch vendor advisory |