[Bug libc/13179] New: netname2host() uses uninitialized memory

[Bug libc/13179] New: netname2host() uses uninitialized memory

[thomas.jarosch at intra2net dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13179

             Bug #: 13179
           Summary: netname2host() uses uninitialized memory
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: thomas.jarosch@intra2net.com
    Classification: Unclassified


Hello,

the file "sunrpc/netname.c" contains this function in git head:

----------------------------------------------
int
netname2host (const char netname[MAXNETNAMELEN + 1], char *hostname,
              const int hostlen)
{
  char *p1, *p2;
  char buffer[MAXNETNAMELEN + 1];

  p1 = strchr (buffer, '.');
...
----------------------------------------------

The "cppcheck" linter reports:
[sunrpc/netname.c:201]: (error) Uninitialized variable: buffer


-> The current code looks like a merge error/bogus to me.

Best regards,
Thomas Jarosch

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[Bug libc/13179] netname2host() uses uninitialized memory

[aj at suse dot de]

http://sourceware.org/bugzilla/show_bug.cgi?id=13179

Andreas Jaeger <aj at suse dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |aj at suse dot de

--- Comment #1 from Andreas Jaeger <aj at suse dot de> 2011-09-29 08:07:38 UTC ---
Thanks, patch send to libc-alpha mailing list.

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[Bug libc/13179] netname2host() uses uninitialized memory

[drepper.fsp at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13179

Ulrich Drepper <drepper.fsp at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #2 from Ulrich Drepper <drepper.fsp at gmail dot com> 2011-10-08 07:24:52 UTC ---
Changed in git.

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[Bug libc/13179] netname2host() uses uninitialized memory

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13179

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fweimer at redhat dot com
              Flags|                            |security-

--- Comment #3 from Florian Weimer <fweimer at redhat dot com> ---
The previous implementation was so broken that it was unusable, so no security
impact.

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