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[Bug dynamic-link/20105] bad version variable in elf_dynamic_do_Rel() elf/do-rel.h (2.23) causes coredump in dl-machine.h elf_machine_rela()
- From: "carlos at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 17 May 2016 05:50:03 +0000
- Subject: [Bug dynamic-link/20105] bad version variable in elf_dynamic_do_Rel() elf/do-rel.h (2.23) causes coredump in dl-machine.h elf_machine_rela()
- Auto-submitted: auto-generated
- References: <bug-20105-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=20105
Carlos O'Donell <carlos at redhat dot com> changed:
What |Removed |Added
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CC| |carlos at redhat dot com
--- Comment #2 from Carlos O'Donell <carlos at redhat dot com> ---
(In reply to Jason Vas Dias from comment #0)
> So the expression &map->l_versions[ndx] has value 0x48 but is dereferenced
> as a pointer by elf_machine_rela() .
Something serious has gone wrong.
In elf_get_dynamic_info the value of DT_VERSYM is loaded and relocated and
should never be invalid for a correct binary and in a correct use case.
Is your binary is corrupt?
Was the file was written do while you were running?
Can you provide a copy of the library that fails to load?
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