[FFmpeg-devel] [PATCH 1/2] avcodec/exr: fix invalid shift in unpack_14()

[Michael Niedermayer]

On Wed, Feb 21, 2018 at 04:29:44AM +0100, Michael Niedermayer wrote:
> Fixes: 6154/clusterfuzz-testcase-minimized-5762231061970944
> Fixes: runtime error: shift exponent 63 is too large for 32-bit type 'int'
> 
> 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/exr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply

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

Awnsering whenever a program halts or runs forever is
On a turing machine, in general impossible (turings halting problem).
On any real computer, always possible as a real computer has a finite number
of states N, and will either halt in less than N cycles or never halt.
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