Commit Graph

3 Commits

Author SHA1 Message Date
William Roberts
8673854fb8 libsepol: fix overflow and 0 length allocations
Throughout libsepol, values taken from sepolicy are used in
places where length == 0 or length == <saturated> matter,
find and fix these.

Also, correct any type mismatches noticed along the way.

Signed-off-by: William Roberts <william.c.roberts@intel.com>
2016-08-17 09:58:19 -04:00
William Roberts
02081779f3 libsepol: fix unitialized jmp and invalid dereference
When initializing role_datum_t array, initialize the array.
This corrects this issue:

==25766== Conditional jump or move depends on uninitialised value(s)
==25766==    at 0x40ABFE: context_is_valid (context.c:59)
==25766==    by 0x40AAED: policydb_context_isvalid (context.c:19)
==25766==    by 0x43CBF4: context_read_and_validate (policydb.c:1881)
==25766==    by 0x43E7B3: ocontext_read_selinux (policydb.c:2631)
==25766==    by 0x43EC4D: ocontext_read (policydb.c:2729)
==25766==    by 0x442019: policydb_read (policydb.c:3937)
==25766==    by 0x442F15: sepol_policydb_read (policydb_public.c:174)
==25766==    by 0x407ED4: init (check_seapp.c:885)
==25766==    by 0x408D83: main (check_seapp.c:1230)

Also, check for NULL when determining if a role can be associated
with a type.

Signed-off-by: William Roberts <william.c.roberts@intel.com>
2016-08-17 09:56:45 -04:00
Joshua Brindle
13cd4c8960 initial import from svn trunk revision 2950 2008-08-19 15:30:36 -04:00