virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-26 19:01:44 +02:00
Code Issues Releases Activity

avcodec/vc1dec: use av_mallocz for luma_mv

Browse Source 
This ensures that no mvs are uninitialized at the time of loop filtering
Fixes: msan_uninit-mem_7f0b6dfe293c_2786_SA20021.vc1
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-17 21:53:07 +01:00
parent 9be63be1b2
commit 3e626548ce
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/vc1dec.c
View File

@ -5516,7 +5516,7 @@ av_cold int ff_vc1_decode_init_alloc_tables(VC1Context *v)
v->ttblk = v->ttblk_base + s->mb_stride; v->ttblk = v->ttblk_base + s->mb_stride;
v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride); v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride);
v->is_intra = v->is_intra_base + s->mb_stride; v->is_intra = v->is_intra_base + s->mb_stride;
v->luma_mv_base = av_malloc(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride); v->luma_mv_base = av_mallocz(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride);
v->luma_mv = v->luma_mv_base + s->mb_stride; v->luma_mv = v->luma_mv_base + s->mb_stride;
/* allocate block type info in that way so it could be used with s->block_index[] */ /* allocate block type info in that way so it could be used with s->block_index[] */