tree 1e45dac53b3a090f28e2e11a5328f0f5a8b4d6a0
parent 54acd4397d7e7a725c94101180cd9f38ef701acc
author Kees Cook <keescook@chromium.org> 1471470130 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1477944117 -0700

list: Split list_del() debug checking into separate function

Similar to the list_add() debug consolidation, this commit consolidates
the debug checking performed during CONFIG_DEBUG_LIST into a new
__list_del_entry_valid() function, and stops list updates when corruption
is found.

Refactored from same hardening in PaX and Grsecurity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>