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From: "fweimer at redhat dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug libc/14700] New: opendir: potential integer overflow
Date: Thu, 11 Oct 2012 14:38:00 -0000
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http://sourceware.org/bugzilla/show_bug.cgi?id=14700

             Bug #: 14700
           Summary: opendir: potential integer overflow
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: unassigned@sourceware.org
        ReportedBy: fweimer@redhat.com
                CC: drepper.fsp@gmail.com
    Classification: Unclassified


In __alloc_dir in sysdeps/posix/opendir.c, st_blksize can be a large value from
a source which is not necessarily trusted.  Therefore, we should check that the
addition does not overflow and fall back to default_allocation in that case.

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