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Bug#639818: marked as done (gcc-4.6: valgrind reports "Invalid read of size 4" in legal code)

Your message dated Fri, 21 Aug 2015 13:43:08 +0000
with message-id <[🔎] E1ZSmb6-0004jv-26@franck.debian.org>
and subject line Bug#796274: Removed package(s) from unstable
has caused the Debian Bug report #639818,
regarding gcc-4.6: valgrind reports "Invalid read of size 4" in legal code
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
639818: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639818
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc-4.6
Version: 4.6.1-4
Severity: important
Tags: upstream

The attached code is being miscompiled with gcc-4.6 (works perfectly with 4.4
or 4.5). The error can be seen if valgrind is run on the resulting executable
as:

==21804== Invalid read of size 4
==21804==    at 0x400437: main (c.c:12)
==21804==  Address 0x51b1048 is 8 bytes inside a block of size 11 alloc'd
==21804==    at 0x4C2779D: malloc (in /usr/lib/valgrind/vgpreload_memcheck-
amd64-linux.so)
==21804==    by 0x40040D: main (c.c:9)

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gcc-4.6 depends on:
ii  binutils              2.21.52.20110606-2 The GNU assembler, linker and bina
ii  cpp-4.6               4.6.1-4            GNU C preprocessor
ii  gcc-4.6-base          4.6.1-4            GCC, the GNU Compiler Collection (
ii  libc6                 2.13-16            Embedded GNU C Library: Shared lib
ii  libcloog-ppl0         0.15.9-3           the Chunky Loop Generator (runtime
ii  libgcc1               1:4.6.1-4          GCC support library
ii  libgmp10              2:5.0.1+dfsg-7     Multiprecision arithmetic library
ii  libgmpxx4ldbl         2:5.0.1+dfsg-7     Multiprecision arithmetic library
ii  libgomp1              4.6.1-4            GCC OpenMP (GOMP) support library
ii  libmpc2               0.9-3              multiple precision complex floatin
ii  libmpfr4              3.0.1-5            multiple precision floating-point
ii  libppl-c4             0.11.2-4           Parma Polyhedra Library (C interfa
ii  libppl9               0.11.2-4           Parma Polyhedra Library (runtime l
ii  libquadmath0          4.6.1-4            GCC Quad-Precision Math Library
ii  zlib1g                1:1.2.3.4.dfsg-3   compression library - runtime

Versions of packages gcc-4.6 recommends:
ii  libc6-dev                     2.13-16    Embedded GNU C Library: Developmen

Versions of packages gcc-4.6 suggests:
pn  binutils-gold                 <none>     (no description available)
pn  gcc-4.6-doc                   <none>     (no description available)
pn  gcc-4.6-locales               <none>     (no description available)
pn  gcc-4.6-multilib              <none>     (no description available)
pn  libgcc1-dbg                   <none>     (no description available)
pn  libgomp1-dbg                  <none>     (no description available)
pn  libmudflap0-4.6-dev           <none>     (no description available)
pn  libmudflap0-dbg               <none>     (no description available)
pn  libquadmath0-dbg              <none>     (no description available)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char** argv)
{
char *z;
  
  z = malloc(11);
  
  strcpy(z, "hello ppl"); /* 9 chars */
  strcat(z, "."); /* + 1 */
  
  return 0;
}

--- End Message ---
--- Begin Message --- 
Version: 4.6.4-7+rm

Dear submitter,

as the package gcc-4.6 has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/796274

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Scott Kitterman (the ftpmaster behind the curtain)

--- End Message ---
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