binutils 2.31.1-4.fc29 - 2.31.1-7.fc29 produces broken ELF binaries

[Hans de Goede]

Hi All,

This is a heads up about a bug which I hit Sunday, if you're
seeing any weird crashes with recently build packages then
this may very well be the cause.

I've filed a ticket with rel-eng to get affected packages
automatically rebuild:

https://pagure.io/releng/issue/7670

Here is the text of the ticket for those of you looking for
more details:

"As discovered last Sunday and discussed here:
https://bugzilla.redhat.com/show_bug.cgi?id=1609577

A bug was introduced in binutils starting with version binutils-2.31.1-4.fc29 which causes it to put the sections in ELF binaries it produces in non incrementing order. This causes eu-strip to mangle the binary into a broken binary when eu-strip is ran on the ELF binary generated by binutils-2.31.1-4.fc29 or newer. This is a big problem since /usr/lib/rpm/find-debuginfo.sh runs eu-strip on all binaries.

The binutils bug causing this was fixed in binutils-2.31.1-8.fc29 which was build yesterday.

Since any binaries produced by binutils >= 2.31.1-4.fc29 && binutils < 2.31.1-8.fc29 and then processed by eu-strip are (potentially) broken this means that all builds done with a binutils version of 2.31.1-4.fc29 - 2.31.1-7.fc29 need to be rebuild."

Regards,

Hans

[Florian Weimer]

On 07/31/2018 10:41 AM, Hans de Goede wrote:
> Hi All,
>
> This is a heads up about a bug which I hit Sunday, if you're
> seeing any weird crashes with recently build packages then
> this may very well be the cause.
>
> I've filed a ticket with rel-eng to get affected packages
> automatically rebuild:
>
> https://pagure.io/releng/issue/7670

I'm attaching a list of affected packages in the Fedora rawhide 
buildroot, as of 2018-07-31 10:00.  This is based on ELF files which 
have a .gnu.build.attributes section (which is not allocated) between 
two allocated sections.  (The rawhide compose lags behind and has a 
different set of affected packages.)  Some of the affected packages are 
being rebuild, and I will schedule builds for the remaining ones.

This phenomenon is actually much older and may also have affected 
packages in the libqb/pacemaker context, but the impact there seems to 
have been limited.

Thanks,
Florian

[Florian Weimer]

On 07/31/2018 12:18 PM, Florian Weimer wrote:
> I'm attaching a list of affected packages in the Fedora rawhide 
> buildroot, as of 2018-07-31 10:00.  This is based on ELF files which 
> have a .gnu.build.attributes section (which is not allocated) between 
> two allocated sections.  (The rawhide compose lags behind and has a 
> different set of affected packages.)  Some of the affected packages are 
> being rebuild, and I will schedule builds for the remaining ones.

I finished most of the rebuilds yesterday.  There were a few late 
rebuilds today because they were for Go packages on aarch64 and ppc64le, 
where apparently external linking (binutils ld) is used in more cases 
(or all the time).

I don't think the broken builds ever made it into a rawhide compose, but 
if they ever do, there might be a further delay until that is resolved.

Sorry about this mess and thanks for your patience,
Florian