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authorXi Wang <xi.wang@gmail.com>2013-01-22 17:49:29 -0500
committerMichael Niedermayer <michaelni@gmx.at>2013-01-23 05:55:19 +0100
commite163d884ef6ccc52f02a176105098d15c451d6af (patch)
treee90d9cd462dd6e1e0b5095b5a72a4fcd30ef985c /libavcodec/h264_mvpred.h
parent56cc629a645e479c233750a60a35264b4aa9a651 (diff)
downloadffmpeg-e163d884ef6ccc52f02a176105098d15c451d6af.tar.gz
rtmp: fix multiple broken overflow checks
Sanity checks like `data + size >= data_end || data + size < data' are broken, because `data + size < data' assumes pointer overflow, which is undefined behavior in C. Many compilers such as gcc/clang optimize such checks away. Use `size < 0 || size >= data_end - data' instead. Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit 902cfe2f74d777a7dc20ac68f2393b9f84b790c1) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/h264_mvpred.h')
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