Integer Overflow and OOPS Vulnerability in Xiaomi MIX 3 MSM GPU Driver

CVE-2019-9111 · HIGH Severity

AV:N/AC:M/AU:N/C:N/I:N/A:C

The msm gpu driver for custom Linux kernels on the Xiaomi perseus-p-oss MIX 3 device through 2018-11-26 has an integer overflow and OOPS because of missing checks of the count argument in sde_evtlog_filter_write in drivers/gpu/drm/msm/sde_dbg.c. This is exploitable for a device crash via a syscall by a crafted application on a rooted device.

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