module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree

Use of the GPL or a compatible licence doesn't necessarily make the code
any good.  We already consider staging modules to be suspect, and this
should also be true for out-of-tree modules which may receive very
little review.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Reviewed-by: Dave Jones <davej@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (patched oops-tracing.txt)

1 files changed, 5 insertions, 0 deletions

diff --git a/kernel/module.c b/kernel/module.c
index 3c5509642847..ef8cb70c6996 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2487,6 +2487,9 @@ static int check_modinfo(struct module *mod, struct load_info *info)
                 return -ENOEXEC;
         }
 
+        if (!get_modinfo(info, "intree"))
+                add_taint_module(mod, TAINT_OOT_MODULE);
+
         if (get_modinfo(info, "staging")) {
                 add_taint_module(mod, TAINT_CRAP);
                 printk(KERN_WARNING "%s: module is from the staging directory,"
@@ -3255,6 +3258,8 @@ static char *module_flags(struct module *mod, char *buf)
                 buf[bx++] = '(';
                 if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE))
                         buf[bx++] = 'P';
+                else if (mod->taints & (1 << TAINT_OOT_MODULE))
+                        buf[bx++] = 'O';
                 if (mod->taints & (1 << TAINT_FORCED_MODULE))
                         buf[bx++] = 'F';
                 if (mod->taints & (1 << TAINT_CRAP))