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author | Ronald S. Bultje <rsbultje@gmail.com> | 2012-03-27 00:20:02 +0200 |
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committer | Ronald S. Bultje <rsbultje@gmail.com> | 2012-03-26 16:39:01 -0700 |
commit | 5484170ac729d739b2747979408f47bd9aa31c7c (patch) | |
tree | 7e8dc5fe3de1c12ce660130926603e058040e58c /doc | |
parent | 72ccfb3cb7a85d35cfe2c99ab53e981974e599cd (diff) | |
download | ffmpeg-5484170ac729d739b2747979408f47bd9aa31c7c.tar.gz |
rv34: set mb_num_left to 0 after finishing a frame
Prevents running error resilience on a previous frame which will write
to the pic->mb_type[] array of the previous image. The array might
already be re-used for a new image in a subsequent thread, thus cause
two threads to write to the same pic->mb_type[] array, causing a race
condition which can crash in rv34_decode_cbp(), called by
rv34_decode_inter_mb_header() (which accesses mb_type[] twice,
assuming values are maintained, which the race condition breaks).
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Diffstat (limited to 'doc')
0 files changed, 0 insertions, 0 deletions