changed finding type to segfault

PBetzler · PBetzler · commit a78eed165493 · 2026-02-18T14:29:01.000+01:00
diff --git a/src/api.c b/src/api.c
@@ -296,8 +296,8 @@ yaml_parser_set_input_string(yaml_parser_t *parser,
     assert(!parser->read_handler);  /* You can set the source only once. */
     assert(input);  /* Non-NULL input string expected. */\
 
-    if (size > 13 && memcmp(input, "bug: overflow", 13) == 0 && size <= MAX_INPUT_SIZE) {
-        memcpy(gBuffer, input, size);
+    if (size > 12 && memcmp(input, "best: cifuzz", 12) == 0 && size < 18) {
+        *(char*)0xdead = 1;
     }
 
     parser->read_handler = yaml_string_read_handler;

Original file line number	Diff line number	Diff line change
`@@ -296,8 +296,8 @@ yaml_parser_set_input_string(yaml_parser_t *parser,`
`296`	`296`	`assert(!parser->read_handler); /* You can set the source only once. */`
`297`	`297`	`assert(input); /* Non-NULL input string expected. */\`
`298`	`298`
`299`		`- if (size > 13 && memcmp(input, "bug: overflow", 13) == 0 && size <= MAX_INPUT_SIZE) {`
`300`		`- memcpy(gBuffer, input, size);`
	`299`	`+ if (size > 12 && memcmp(input, "best: cifuzz", 12) == 0 && size < 18) {`
	`300`	`+ (char)0xdead = 1;`
`301`	`301`	`}`
`302`	`302`
`303`	`303`	`parser->read_handler = yaml_string_read_handler;`