4 files changed, 119 insertions, 0 deletions
diff --git a/oss-fuzz/.gitignore b/oss-fuzz/.gitignore
index a877c11f42..f2d74de457 100644
--- a/oss-fuzz/.gitignore
+++ b/oss-fuzz/.gitignore
@@ -1,5 +1,8 @@
 fuzz-commit-graph
 fuzz-config
+fuzz-credential-from-url-gently
 fuzz-date
 fuzz-pack-headers
 fuzz-pack-idx
+fuzz-parse-attr-line
+fuzz-url-decode-mem
diff --git a/oss-fuzz/fuzz-credential-from-url-gently.c b/oss-fuzz/fuzz-credential-from-url-gently.c
new file mode 100644
index 0000000000..c872f9ad2d
--- /dev/null
+++ b/oss-fuzz/fuzz-credential-from-url-gently.c
@@ -0,0 +1,32 @@
+#include "git-compat-util.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#include "credential.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	struct credential c;
+	char *buf;
+
+	buf = malloc(size + 1);
+	if (!buf)
+		return 0;
+
+	memcpy(buf, data, size);
+	buf[size] = 0;
+
+	// start fuzzing
+	credential_init(&c);
+	credential_from_url_gently(&c, buf, 1);
+
+	// cleanup
+	credential_clear(&c);
+	free(buf);
+
+	return 0;
+}
diff --git a/oss-fuzz/fuzz-parse-attr-line.c b/oss-fuzz/fuzz-parse-attr-line.c
new file mode 100644
index 0000000000..e0e4bc6358
--- /dev/null
+++ b/oss-fuzz/fuzz-parse-attr-line.c
@@ -0,0 +1,41 @@
+#define DISABLE_SIGN_COMPARE_WARNINGS
+
+#include "git-compat-util.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include "attr.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	struct match_attr *res;
+	char *buf;
+
+	buf = malloc(size + 1);
+	if (!buf)
+		return 0;
+
+	memcpy(buf, data, size);
+	buf[size] = 0;
+
+	res = parse_attr_line(buf, "dummy", 0, 0);
+
+	if (res) {
+		int j;
+		for (j = 0; j < res->num_attr; j++) {
+			const char *setto = res->state[j].setto;
+			if (ATTR_TRUE(setto) || ATTR_FALSE(setto) ||
+				ATTR_UNSET(setto))
+				;
+			else
+				free((char *)setto);
+		}
+		free(res);
+	}
+	free(buf);
+
+	return 0;
+}
diff --git a/oss-fuzz/fuzz-url-decode-mem.c b/oss-fuzz/fuzz-url-decode-mem.c
new file mode 100644
index 0000000000..2342aa993b
--- /dev/null
+++ b/oss-fuzz/fuzz-url-decode-mem.c
@@ -0,0 +1,43 @@
+#include "git-compat-util.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#include "url.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	char *buf;
+	char *r;
+	const char *pbuf;
+
+	buf = malloc(size + 1);
+	if (!buf)
+		return 0;
+
+	memcpy(buf, data, size);
+	buf[size] = 0;
+
+	// start fuzzing
+	r = url_decode(buf);
+	free(r);
+
+	r = url_percent_decode(buf);
+	free(r);
+
+	pbuf = (const char*) buf;
+	r = url_decode_parameter_name(&pbuf);
+	free(r);
+
+	pbuf = (const char*) buf;
+	r = url_decode_parameter_value(&pbuf);
+	free(r);
+
+	// cleanup
+	free(buf);
+
+	return 0;
+}