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Date: Tue, 15 Apr 2025 20:25:38 +0200
From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
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Subject: Re: [FFmpeg-devel] [PATCH 2/2] avformat/id3v2: Check that
 decode_str() did advance
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Hi

On Tue, Apr 15, 2025 at 01:37:56AM +0000, softworkz . wrote:
[...]
> > > do you have a test file perhaps?
> >=20
> > Will email you one, but the loop with a function that doesnt advance
> > is an issue even if the specific file doesnt trigger it in a different
> > implementation
>=20
>=20
> Thanks a lot for the test file. I was able to reproduce the eternal loop
> that you were intending to fix, but I noticed that after removing the=20
> patches from rcombs, that endless loop doesn't happen in the first place.

the patch was intended to fix that regression yes. But your patch contains
a very similarly looking loop to what caused that. Which is what i meant,
that because it looks similar it should be checked for that

thx

[...]
--=20
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

If a bugfix only changes things apparently unrelated to the bug with no
further explanation, that is a good sign that the bugfix is wrong.

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