in_tail: initialize mult_parsers list before parsing properties

if not initialized, any error during the parsing of options will cause the *mult_destroy function to segfault. Signed-off-by: Jorge Niedbalski <[email protected]>
fluent · Apr 20, 2021 · cae08d2 · cae08d2
1 parent d658924
commit cae08d2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/plugins/in_tail/tail_multiline.c b/plugins/in_tail/tail_multiline.c
@@ -57,6 +57,8 @@ int flb_tail_mult_create(struct flb_tail_config *ctx,
         ctx->multiline_flush = 1;
     }
 
+    mk_list_init(&ctx->mult_parsers);
+
     /* Get firstline parser */
     tmp = flb_input_get_property("parser_firstline", ins);
     if (!tmp) {
@@ -70,7 +72,6 @@ int flb_tail_mult_create(struct flb_tail_config *ctx,
     }
 
     ctx->mult_parser_firstline = parser;
-    mk_list_init(&ctx->mult_parsers);
 
     /* Read all multiline rules */
     mk_list_foreach(head, &ins->properties) {