Author: ae
Date: Wed Nov 25 07:14:58 2015
New Revision: 291291
URL: https://svnweb.freebsd.org/changeset/base/291291
Log:
Check that hhk_helper pointer isn't NULL before access.
It isn't forbidden to use NULL pointer for hook_helper in hookinfo
structure when hhook_add_hook() adds new helper hook.
Modified:
head/sys/kern/kern_hhook.c
Modified: head/sys/kern/kern_hhook.c
==============================================================================
--- head/sys/kern/kern_hhook.c Wed Nov 25 04:13:28 2015 (r291290)
+++ head/sys/kern/kern_hhook.c Wed Nov 25 07:14:58 2015 (r291291)
@@ -101,7 +101,8 @@ hhook_run_hooks(struct hhook_head *hhh,
HHH_RLOCK(hhh, &rmpt);
STAILQ_FOREACH(hhk, &hhh->hhh_hooks, hhk_next) {
- if (hhk->hhk_helper->h_flags & HELPER_NEEDS_OSD) {
+ if (hhk->hhk_helper != NULL &&
+ hhk->hhk_helper->h_flags & HELPER_NEEDS_OSD) {
hdata = osd_get(OSD_KHELP, hosd, hhk->hhk_helper->h_id);
if (hdata == NULL)
continue;
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
