[abrt] crash in rpm-build-4.7.2-1.fc12: fdGetFp: Process /usr/bin/rpmbuild was killed by signal 11 (SIGSEGV)

[Jeff Johnson]

Tracker

[pedro (pedro-redhat-bugs-1)]

abrt 1.0.9 detected a crash.

architecture: x86_64
Attached file: backtrace
cmdline: rpmbuild -bb jboss.spec
component: rpm
crash_function: fdGetFp
executable: /usr/bin/rpmbuild
global_uuid: 3177ee6dd4fd223bc9ee11d26cbb69006628037e
kernel: 2.6.32.12-115.fc12.x86_64
package: rpm-build-4.7.2-1.fc12
rating: 4
reason: Process /usr/bin/rpmbuild was killed by signal 11 (SIGSEGV)
release: Fedora release 12 (Constantine)

comment
-----
The definition of jboss.spec has the following macro (BAD):
BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX}

Should be:
BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)

Last ")" was bad replaced by "}".

How to reproduce
-----
1. rpmbuild -bb jboss.spec

[pedro (pedro-redhat-bugs-1)]

Created attachment 421635
File: backtrace

[Panu (panu-redhat-bugs)]

Where can I find this particular jboss.spec to reproduce the issue?

[pedro (pedro-redhat-bugs-1)]

(In reply to comment #2)
> Where can I find this particular jboss.spec to reproduce the issue?

The segmentation fault is immediately and happens even before the %prep phase. It happens because the BuildRoot line:

# BAD syntax: Last ")" was bad replaced by "}".
BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX}

# Should be and works fine
BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)

I think the jboss.spec has a lot of information that I believe isn't important for analysis. However I'll try to create a simpler one just with the sufficient information to generate the crash (I'll post here soon as I can).

[pedro (pedro-redhat-bugs-1)]

Created attachment 421987
the jboss.spec file

[Panu (panu-redhat-bugs)]

Thanks, easily reproduced with that.

[Panu (panu-redhat-bugs)]

As I kinda suspected, there's no "minimal" reproducer for this: the spec parser is looking for the closing parenthesis and overruns the spec linebuffer while doing so (case of a missing bounds check), and this wont happen with the "minimal reproducer" spec sizes.

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