Subject: [ Fix continuation level handling ]
Origin: FILE5_30-47-gdc067431
Upstream-Author: Christos Zoulas <christos@zoulas.com>
Date: Fri Apr 21 16:54:57 2017 +0000

    - if we failed to get the offset at the current continuation level, reduce it
    - reset continuation level on flush
    Found by oss-fuzz

--- a/src/softmagic.c
+++ b/src/softmagic.c
@@ -192,6 +192,7 @@
 			while (magindex < nmagic - 1 &&
 			    magic[magindex + 1].cont_level != 0)
 				magindex++;
+			cont_level = 0;
 			continue; /* Skip to next top-level test*/
 		}
 
@@ -370,6 +371,7 @@
 				case -1:
 				case 0:
 					flush = 1;
+					cont_level--;
 					break;
 				default:
 					break;