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Samsung Fimg2d FIMG2D_BITBLT_BLIT Ioctl Concurrency Flaw

Samsung Fimg2d FIMG2D_BITBLT_BLIT Ioctl Concurrency Flaw
Posted Oct 28, 2015
Authored by Google Security Research, leecam

The Samsung Graphics 2D driver (/dev/fimg2d) is accessible by unprivileged users/applications. It was found that the ioctl implementation for this driver contains a locking error which can lead to memory errors (such as use-after-free) due to a race condition.

tags | exploit
systems | linux
advisories | CVE-2015-7891
SHA-256 | a3f38084cb1d4d13978aaba6602e9965fb1df0bed4c3c2f913708f75b9b78245
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