On 01/16/2013 06:35 PM, Mark Wielaard wrote:
On Wed, Jan 16, 2013 at 05:16:06PM +0100, Jan Kratochvil wrote:
> On Wed, 16 Jan 2013 17:12:56 +0100, Florian Weimer wrote:
>> Not sure if this a toolchain bug or elfutils bug. readelf from
>> binutils prints GNU_UNIQUE.
> If not obvious binutils/readelf.c contains:
> if (binding == STB_GNU_UNIQUE
> && (elf_header.e_ident[EI_OSABI] == ELFOSABI_GNU
> /* GNU is still using the default value 0. */
> || elf_header.e_ident[EI_OSABI] == ELFOSABI_NONE))
> return "UNIQUE";
So I think this is a toolchain bug. It is nice of binutils to
accept STB_GNU_UNIQUE with the wrong EI_OSABI, but I don't think
you can rely on all tools being so lenient.
Okay, I'll try to figure what's special about the affected DSOs and
isolate the toolchain bug.
Florian Weimer / Red Hat Product Security Team