Bug#815915: initramfs-tools-core: lsinitramfs causes zcat crash when Intel microcode is included in initrd

[Moritz Muehlenhoff <jmm@debian.org>]

On Sat, Feb 27, 2016 at 08:09:47PM +0000, Ben Hutchings wrote:
> > When using lsinitramfs to check the contents of an initrd:
> > 
> > > root:~# lsinitramfs /boot/initrd.img-4.4.2
> > > /boot/initrd.img-4.4.2-curly-0
> > > kernel
> > > kernel/x86
> > > kernel/x86/microcode
> > > kernel/x86/microcode/GenuineIntel.bin
> > > *** Error in `zcat': double free or corruption (!prev): 0x0000000002236940 ***
> > 
> > lsinitramfs runs fine on my AMD boxes.
> > 
> > It seems that Ubuntu has at least two reports of this: see their bug
> > numberss 1541076 and 1507443. I don't see a Debian bug report on it, though.
> 
> The crash is a bug in zcat.  But presumably we are also not invoking it
> correctly.

I couldn't reproduce this. Ron, could you place your /boot/initrd.img-4.4.2
somewhere for download?

Cheers,
        Moritz