Bug#1020559: libc6: After upgrading libc6 expr is crashing with "stack smashing detected"

[Aurelien Jarno <aurelien@aurel32.net>]

Hi,

On 2022-09-23 21:28, Bernhard Übelacker wrote:
> On Fri, 23 Sep 2022 14:45:07 +0530 Vasudev Kamath <vasudev@debian.org> wrote:
> > Package: libc6
> > Version: 2.34-8
> 
> > I upgraded libc6 to latest released 2.35-1
> 
> >                 Module ld-linux-x86-64.so.2 with build-id a03c3b14d371da908a3f22007b3f0c73d1f9f634
> >                 Module libc.so.6 with build-id ef3afb43092687d7fcc8167fabdee73f4a3287f1
> >                 Module libgmp.so.10 with build-id 25c73b398493c695a013a6d9d493a8316aac0fa0
> >                 Module expr with build-id b919757cbc30fbb64b14498222499d972fd80acd
> 
> 
> > Versions of packages libc6 suggests:
> > ii  debconf [debconf-2.0]  1.5.79
> > pn  glibc-doc              <none>
> > ii  libc-l10n              2.35-1
> > ii  libnss-nis             3.1-4
> > ii  libnss-nisplus         1.3-4
> > ii  locales                2.35-1
> 
> 
> 
> Hello Vasudev,
> I wonder if this libc6 installation is completed.
> Because the bug report mentions version 2.34-8 from testing,
> but e.g. locales and libc-l10n is 2.35-1.
> 
> Also searching for a package containing the debug information
> for the build-id from the modules listing returns currently
> the version 2.34-8 from testing.
> 
> But the build-id for ld-linux-x86-64.so.2 points to 2.35-1.
> 
> Maybe the libc package installation got interrupted?

Good catch. I also noticed that the libraries seems to be located in
/usr/lib/x86_64-linux-gnu/, which is typical of a usrmerge system, but
reportbug says "merged-usr: no".

Vasudev, you should probably check that you do not have too versions of
the glibc on your system, one in /lib/x86_64-linux-gnu/ and another one
in /usr/lib/x86_64-linux-gnu/ without the /lib -> usr/lib symlink.

Regards
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                 http://www.aurel32.net