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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/boot/efi/fuzz-efi-string.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boot/efi/fuzz-efi-string.c')
-rw-r--r--src/boot/efi/fuzz-efi-string.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/boot/efi/fuzz-efi-string.c b/src/boot/efi/fuzz-efi-string.c
new file mode 100644
index 0000000..3c0f0f3
--- /dev/null
+++ b/src/boot/efi/fuzz-efi-string.c
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "efi-string.h"
+#include "fuzz.h"
+#include "utf8.h"
+
+static char16_t *memdup_str16(const uint8_t *data, size_t size) {
+ char16_t *ret = memdup(data, size);
+ assert_se(ret);
+ ret[size / sizeof(char16_t) - 1] = '\0';
+ return ret;
+}
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ if (outside_size_range(size, sizeof(size_t), 64 * 1024))
+ return 0;
+
+ size_t len, len2;
+ memcpy(&len, data, sizeof(len));
+ data += sizeof(len);
+ size -= sizeof(len);
+
+ len2 = size - len;
+ if (len > size || len < sizeof(char16_t) || len2 < sizeof(char16_t))
+ return 0;
+
+ const char *tail8 = NULL;
+ _cleanup_free_ char *str8 = ASSERT_SE_PTR(memdup_suffix0(data, size));
+ DO_NOT_OPTIMIZE(parse_number8(str8, &(uint64_t){ 0 }, size % 2 == 0 ? NULL : &tail8));
+
+ const char16_t *tail16 = NULL;
+ _cleanup_free_ char16_t *str16 = memdup_str16(data, size);
+ DO_NOT_OPTIMIZE(parse_number16(str16, &(uint64_t){ 0 }, size % 2 == 0 ? NULL : &tail16));
+
+ _cleanup_free_ char16_t *pattern = memdup_str16(data, len), *haystack = memdup_str16(data + len, len2);
+ DO_NOT_OPTIMIZE(efi_fnmatch(pattern, haystack));
+
+ return 0;
+}