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Commit 36324792 authored by Pablo Ceballos's avatar Pablo Ceballos Committed by gitbuildkicker
Browse files

Region: Detect malicious overflow in unflatten 

Bug 29983260

Change-Id: Ib6e1cb8ae279010c5e9960aaa03513f55b7d873b
parent 1f4b49e6

libs/ui/Region.cpp

+5 −0
Original line number Diff line number Diff line
@@ -795,6 +795,11 @@ status_t Region::unflatten(void const* buffer, size_t size) { 
        return NO_MEMORY;

    }



    if (numRects > (UINT32_MAX / sizeof(Rect))) {

        android_errorWriteWithInfoLog(0x534e4554, "29983260", -1, NULL, 0);

        return NO_MEMORY;

    }



    Region result;

    result.mStorage.clear();

    for (size_t r = 0; r < numRects; ++r) {