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| author | Dale Curtis <dalecurtis@chromium.org> | 2017-11-17 16:05:30 -0800 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-07 23:38:06 +0100 |
| commit | f8fcb6bbf0e64b9453ad85978dc4357e7afdd499 (patch) | |
| tree | 85420754e66a897f04d806f714cee5ccee11e2c5 /libavcodec/lzwenc.c | |
| parent | 50c93ce5ef71e39c5e49c8ae3873431d9d1753e1 (diff) | |
| download | ffmpeg-f8fcb6bbf0e64b9453ad85978dc4357e7afdd499.tar.gz | |
Fix undefined shift on assumed 8-bit input.
decode_user_data() attempts to create an integer |build|
value with 8 bits of spacing for 3 components. However
each component is an int32_t, so shifting each component
is undefined for values outside of the 8 bit range.
This patch simply clamps input to 8-bits per component
and prints out a warning that the values were clamped.
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7010dd98b575d2e39fca947e609b85be7490b269)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/lzwenc.c')
0 files changed, 0 insertions, 0 deletions