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Date: Tue, 9 Jun 2026 00:14:26 +1000
To: cygwin@cygwin.com
Subject: Re: file-5.46 segfault on Cygwin (only)
Message-ID: <aibOQqfCU0JQaShM@raf.org>
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 <ahZ-hjjT0397FJPW@raf.org>
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From: raf via Cygwin <cygwin@cygwin.com>
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On Wed, May 27, 2026 at 03:17:58PM +1000, raf <cygwin@raf.org> wrote:

> On Sun, May 24, 2026 at 11:46:38AM +0300, Andrey Repin <anrdaemon@yandex.ru> wrote:
> 
> > Greetings, raf!
> 
> Hi Andrey,
> 
> > > The current version of file/libmagic on Cygwin is 5.46.
> > 
> > > It crashes when trying to analyse the zipfile
> > > CookieAutoDelete@kennydo.com.xpi (a Firefox addon).
> > > This is without decompressing the zipfile to allow
> > > further analsis.
> > 
> > $ file --version; file CookieAutoDelete@kennydo.com.xpi
> > file-5.46
> > magic file from /usr/share/misc/magic
> > CookieAutoDelete@kennydo.com.xpi: Zip archive data, at least v2.0 to extract, compression method=deflate
> 
> It's good that it doesn't affect everyone, but 5.47 has
> been out for a few months, and 5.46 is a few years old.
> So an updated package would help others regardless.
> 
> > > It's here for reference (raf.org/tmp/CookieAutoDelete@kennydo.com.xpi).
> > 
> > > Strangely, 5.46 on macOS and Debian don't crash with this file.
> > > It's just the 5.46 on Cygwin.
> > 
> > Try the usual:
> > 
> > 1. Shut down every cygwin process.
> > 2. ps ax to verify.
> > 3. Re-run cygwin setup.
> > 4. Try rebase-trigger full if that didn't help.
> 
> Thanks but that didn't fix it.
> But it's OK. I've installed 5.47 from source and it's fine.
> I'll remove it when the Cygwin package is updated to 5.47.
> 
> > > I compiled 5.46 on Cygwin myself to see if it's something
> > > wrong just with the Cygwin package of file-devel but that
> > > crashed too.
> > 
> > > 5.47 on all three systems doesn't crash, so that's good.
> > 
> > > So, if anyone here has anything to do with packaging file-devel
> > > for Cygwin, please update the package to 5.47. Thanks.
> > 
> > -- 
> > With best regards,
> > Andrey Repin
> > Sunday, May 24, 2026 11:45:06
> > 
> > Sorry for my terrible english...
> 
> cheers,
> raf

file-5.48 has just been released.

cheers,
raf


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