From b577eaddced40052b80792ce08c342c7f7816ab9 Mon Sep 17 00:00:00 2001
From: Dominik Loidolt <dominik.loidolt@univie.ac.at>
Date: Mon, 22 Apr 2024 13:55:46 +0200
Subject: [PATCH] Fix overwrites-const-input in fuzz_compression target
---
test/fuzz/fuzz_compression.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/test/fuzz/fuzz_compression.c b/test/fuzz/fuzz_compression.c
index 1c91d34..9962dee 100644
--- a/test/fuzz/fuzz_compression.c
+++ b/test/fuzz/fuzz_compression.c
@@ -22,6 +22,7 @@
#include <stdint.h>
#include <stddef.h>
+#include <string.h>
#include "fuzz_helpers.h"
#include "fuzz_data_producer.h"
@@ -73,10 +74,14 @@ int LLVMFuzzerTestOneInput(const uint8_t *src, size_t size)
up_model = NULL;
break;
case 1:
- up_model = malloc(size);
+ up_model = FUZZ_malloc(size);
break;
case 2:
- up_model = (void *)model; /* in-place update */
+ up_model = FUZZ_malloc(size);
+ if (model && up_model) {
+ memcpy(up_model, model, size);
+ model = up_model; /* in-place update */
+ }
break;
default:
FUZZ_ASSERT(0);
@@ -130,8 +135,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *src, size_t size)
}
free(cmp_data);
- if (up_model != model)
- free(up_model);
+ free(up_model);
FUZZ_dataProducer_free(producer);
return 0;
}
--
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