[FFmpeg-devel] [PATCH] avcodec/wmavoice: sanity check block_align

Michael Niedermayer michael at niedermayer.cc
Mon Feb 3 00:54:47 EET 2020


On Sun, Dec 22, 2019 at 04:06:36PM +0100, Michael Niedermayer wrote:
> This limit is roughly based on the bitreader limit, its likely a much tighter limit
> could be used
> 
> Fixes: left shift of 1965039647 by 1 places cannot be represented in type 'int'
> Fixes: 19545/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAVOICE_fuzzer-5695391899320320
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/wmavoice.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Frequently ignored answer#1 FFmpeg bugs should be sent to our bugtracker. User
questions about the command line tools should be sent to the ffmpeg-user ML.
And questions about how to use libav* should be sent to the libav-user ML.
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