Tom London wrote:
Neat. Hadn't noticed this before.
Here is a trace (produced by 'ulimit -c 10000; su - tbl'):
(gdb) where
#0 0x007642b1 in malloc_consolidate () from /lib/libc.so.6
#1 0x00765606 in _int_malloc () from /lib/libc.so.6
#2 0x00766a49 in calloc () from /lib/libc.so.6
#3 0x00fd3ece in _dl_new_object () from /lib/ld-linux.so.2
#4 0x00fcf288 in _dl_map_object_from_fd () from /lib/ld-linux.so.2
#5 0x00fd1fa5 in _dl_map_object () from /lib/ld-linux.so.2
#6 0x00fdad34 in dl_open_worker () from /lib/ld-linux.so.2
#7 0x00fd775e in _dl_catch_error () from /lib/ld-linux.so.2
#8 0x00fdb489 in _dl_open () from /lib/ld-linux.so.2
#9 0x0028cd42 in dlopen_doit () from /lib/libdl.so.2
#10 0x00fd775e in _dl_catch_error () from /lib/ld-linux.so.2
#11 0x0028d3f0 in _dlerror_run () from /lib/libdl.so.2
#12 0x0028cdd2 in dlopen@@GLIBC_2.1 () from /lib/libdl.so.2
#13 0x0065f2f3 in _pam_start_handlers () from /lib/libpam.so.0
#14 0x0065f605 in _pam_init_handlers () from /lib/libpam.so.0
#15 0x0065d61f in pam_start () from /lib/libpam.so.0
#16 0x00e6779f in main () from /bin/su
(gdb)
tom
False alarm.
I applied today's updates, restored /etc/mcs.conf to its original form,
rebooted
and no more problem with "su - user" from root on my enforcing targetted
policy i686 system.
John
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