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| author | Daniel Kang <daniel.d.kang@gmail.com> | 2011-01-15 10:18:38 +0000 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@rainbow.studorg.tuwien.ac.at> | 2011-01-15 10:18:38 +0000 |
| commit | eb40d7ffa7d455697849a0a505ca42836b30aa6d (patch) | |
| tree | 7fa185117b1133f94ac64bab714c67b43a7589f6 | |
| parent | 0db5d2b09e9a291999a081dac42cff69b9ea9f5d (diff) | |
| download | ffmpeg-eb40d7ffa7d455697849a0a505ca42836b30aa6d.tar.gz | |
Check symbol validity to avoid a crash, fixes issue 2523.
Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26360 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/ivi_common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/ivi_common.c b/libavcodec/ivi_common.c index b15845808f..0e552bccfe 100644 --- a/libavcodec/ivi_common.c +++ b/libavcodec/ivi_common.c @@ -404,6 +404,10 @@ int ff_ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band, IVITile *tile) hi = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1); val = IVI_TOSIGNED((hi << 6) | lo); /* merge them and convert into signed val */ } else { + if (sym >= 256U) { + av_log(NULL, AV_LOG_ERROR, "Invalid sym encountered: %d.\n", sym); + return -1; + } run = rvmap->runtab[sym]; val = rvmap->valtab[sym]; } |