On Wed, Sep 7, 2011 at 2:41 AM, Paul Howarth <paul@xxxxxxxxxxxx> wrote: > I'm running matchpathcon as part of the libssh2 build to set the file > context of a test script appropriately such that an instance of an > openssh server that's run as part of the test suite transitions > correctly to sshd_t. This has worked OK in the past but I'm now finding > that on my F-15 builder matchpathcon is crashing when doing: > > /usr/sbin/matchpathcon -n /etc/rc.d/init.d/sshd > > gdb doesn't seem to be much help: > > [mockbuild@zion ~]$ /usr/sbin/matchpathcon -n /etc/rc.d/init.d/sshd > Segmentation fault (core dumped) > [mockbuild@zion ~]$ gdb /usr/sbin/matchpathcon > GNU gdb (GDB) Fedora (7.3.50.20110722-6.fc16) > Copyright (C) 2011 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "x86_64-redhat-linux-gnu". > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>... > Reading symbols from /usr/sbin/matchpathcon...Reading symbols from /usr/lib/debug/sbin/matchpathcon.debug...done. > done. > (gdb) run -n /etc/rc.d/init.d/sshd > Starting program: /usr/sbin/matchpathcon -n /etc/rc.d/init.d/sshd > > Program received signal SIGSEGV, Segmentation fault. > __strtok_r_1c (__nextp=read_sleb128: Corrupted DWARF expression. > ) at /usr/include/bits/string2.h:1179 > 1179 while (*__s == __sep) > (gdb) bt > #0 __strtok_r_1c (__nextp=read_sleb128: Corrupted DWARF expression. > ) at /usr/include/bits/string2.h:1179 > #1 init (rec=0x602010, opts=0x7ffff7ff3718, n=<optimized out>) at label_file.c:440 > #2 0x00007ffff7bc4b3d in selabel_open (backend=0, opts=0x7ffff7ff3718, nopts=5) at label.c:165 > #3 0x00007ffff7bc3e16 in matchpathcon_init_prefix_internal (path=0x0, subset=0x0) at matchpathcon.c:321 > #4 0x00007ffff7bc40a9 in matchpathcon (path=0x7fffffffe82a "/etc/rc.d/init.d/sshd", mode=0, con=0x7fffffffe418) at matchpathcon.c:406 > #5 0x0000000000400fe7 in printmatchpathcon (path=0x7fffffffe82a "/etc/rc.d/init.d/sshd", header=0, mode=<optimized out>) at matchpathcon.c:27 > #6 0x0000000000400d41 in main (argc=<optimized out>, argv=<optimized out>) at matchpathcon.c:156 > (gdb) > > I was getting an AVC earlier too, fixed by: > > allow setfiles_t sysfs_t:filesystem getattr; > > but fixing that didn't prevent the crash. > > This is with an F-15 host and Rawhide x86_64 target, libselinux-2.1.5-2.fc17. > > Any suggestions? > > Paul. > -- Updating to libselinux-2.1.5-3.fc17.x86_64 fixes this segfault for me. tom -- Tom London -- selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/selinux
