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Samsung M2m1shot Kernel Driver Buffer Overflow

Samsung M2m1shot Kernel Driver Buffer Overflow
Posted Oct 28, 2015
Authored by Google Security Research, hawkes

The Samsung m2m1shot driver framework is used to provide hardware acceleration for certain media functions, such as JPEG decoding and scaling images. The driver endpoint (/dev/m2m1shot_jpeg) is accessible by the media server. The Samsung S6 Edge is a 64-bit device, so a compatibility layer is used to allow 32-bit processes to provide structures that are expected by the 64-bit driver. There is a stack buffer overflow in the compat ioctl for m2m1shot.

tags | exploit, overflow
systems | linux
advisories | CVE-2015-7892
MD5 | db1dc1c9fb0edf79900cfbb5e71d03a4
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