[Bug dynamic-link/20480] Patch: ifunc not executable, crashes sudo qemu

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=20480

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2016-08-18
                 CC|                            |fweimer at redhat dot com
          Component|libc                        |dynamic-link
     Ever confirmed|0                           |1
              Flags|                            |security-

--- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
We need a full reproducer.  This could well be a compiler or binutils bug.  Can
you provide more information, please?  “eu-readelf -l -S” could be helpful,
combined with the call stack and disassembly of the affected functions.

The patch looks wrong.  Some systems disallow PROT_WRITE|PROT_EXEC as a matter
of policy.

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