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Code Issues Releases Activity

ff_ivi_decode_blocks: fix negative scan_pos case.

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Fixes out of global array read.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-15 14:58:06 +02:00
parent f0bf9e9c2a
commit 93927eb334
1 changed files with 1 additions and 1 deletions
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2
libavcodec/ivi_common.c
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@ -417,7 +417,7 @@ int ff_ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band, IVITile *tile)
/* de-zigzag and dequantize */
scan_pos += run;
if (scan_pos >= num_coeffs)
if (scan_pos >= (unsigned)num_coeffs)
break;
pos = band->scan[scan_pos];