[Bug-tar] GNU tar 1.24+ segfaults on Solaris 10U9 x86

[Sebastian Kayser]

Hi,

we are packaging GNU tar for Solaris and since tar 1.24 we've been
seeing segfaults when extracting archives (testing and creating archives
works fine). It doesn't seem to be specific to a single archive. Even an
archive created with GNU tar itself causes a segfault. It seems to be
specific to

* the architecture:    x86   (SPARC is fine)
* the tar version:     1.24+ (pre 1.24 is fine)
* the Solaris release: 10U9  (pre 10U9 is fine)

There's a longish stacktrace from a non-stripped tar available at

  http://buildfarm.opencsw.org/~maciej/gtar.pstack

Reproduceable (given the above constraints) via:

$ wget 
https://gar.svn.sourceforge.net/svnroot/gar/csw/mgar/pkg/examples/multiple-versions/trunk/files/hello-0.1.0.tar.gz
[^]
$ gtar xfvz hello-0.1.0.tar.gz 
Segmentation Fault (core dumped)

Any idea what's going wrong? Please let me know if we can provide any
further information.

Sebastian