1 files changed, 50 insertions, 0 deletions
diff --git a/fluent-bit/tests/internal/fuzzers/parse_logfmt_fuzzer.c b/fluent-bit/tests/internal/fuzzers/parse_logfmt_fuzzer.c
new file mode 100644
index 00000000..c65a2adb
--- /dev/null
+++ b/fluent-bit/tests/internal/fuzzers/parse_logfmt_fuzzer.c
@@ -0,0 +1,50 @@
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fluent-bit/flb_time.h>
+#include <fluent-bit/flb_parser.h>
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size){
+    void *out_buf = NULL;
+    size_t out_size = 0;
+    struct flb_time out_time;
+    struct flb_config *fuzz_config;
+    struct flb_parser *fuzz_parser;
+
+    /* Set flb_malloc_mod to be fuzzer-data dependent */
+    if (size < 4) {
+        return 0;
+    }
+    flb_malloc_p = 0;
+    flb_malloc_mod = *(int*)data;
+    data += 4;
+    size -= 4;
+
+    /* Avoid division by zero for modulo operations */
+    if (flb_malloc_mod == 0) {
+        flb_malloc_mod = 1;
+    }
+
+    /* logfmt parser */
+    fuzz_config = flb_config_init();
+    if (fuzz_config == NULL) {
+        return 0;
+    }
+    fuzz_parser = flb_parser_create("fuzzer", "logfmt", NULL, FLB_TRUE,
+                                    NULL, NULL, NULL, MK_FALSE,
+                                    MK_TRUE, FLB_FALSE, NULL, 0, NULL,
+                                    fuzz_config);
+    if (fuzz_parser) {
+        flb_parser_do(fuzz_parser, (char*)data, size,
+                      &out_buf, &out_size, &out_time);
+
+        if (out_buf != NULL) {
+            free(out_buf);
+        }
+        flb_parser_destroy(fuzz_parser);
+    }
+
+    flb_config_exit(fuzz_config);
+
+    return 0;
+}