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From: "amonakov at gmail dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug dynamic-link/14831] Redirecting a library to libm.so via LD_AUDIT induces segmentation fault in _dl_profile_fixup
Date: Mon, 12 Nov 2012 07:27:00 -0000
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http://sourceware.org/bugzilla/show_bug.cgi?id=14831

Alexander Monakov <amonakov at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #6727|0                           |1
        is obsolete|                            |

--- Comment #1 from Alexander Monakov <amonakov at gmail dot com> 2012-11-12 07:27:33 UTC ---
Created attachment 6728
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6728
simplified testcase

Actually, redirecting libraries via LD_AUDIT mechanism is not required to
trigger the bug. It suffices to use the minimal audit library that implements
only la_version and an executable that links to libm.so.

I'm surprised this simplified test fails. Is it covered in glibc's LD_AUDIT
tests? Does it point to an inefficiency somewhere (LD_AUDIT library is
essentially a no-op in this case, it's odd that the loader's behavior differs)?

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