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Bug 911850 - BindBufferRange should check for out-of-bounds range - r=jgilbert

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This commit is contained in:
Benoit Jacob 2013-09-04 08:14:37 -04:00
parent d42c57edae
commit aa0bf1b2ae
1 changed files with 6 additions and 0 deletions
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6
content/canvas/src/WebGLContextBuffers.cpp
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@ -113,6 +113,12 @@ WebGLContext::BindBufferRange(WebGLenum target, WebGLuint index, WebGLBuffer* bu
} else if (target != buffer->Target()) {
return ErrorInvalidOperation("bindBuffer: buffer already bound to a different target");
}
CheckedInt<WebGLsizeiptr> checked_neededByteLength = CheckedInt<WebGLsizeiptr>(offset) + size;
if (!checked_neededByteLength.isValid() ||
checked_neededByteLength.value() > buffer->ByteLength())
{
return ErrorInvalidValue("bindBufferRange: invalid range");
}
}
WebGLRefPtr<WebGLBuffer>* bufferSlot = GetBufferSlotByTarget(target, "bindBuffer");