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-rw-r--r--executor/common_linux.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/executor/common_linux.h b/executor/common_linux.h
index 0b1f5c72a..45a74e36f 100644
--- a/executor/common_linux.h
+++ b/executor/common_linux.h
@@ -645,7 +645,7 @@ static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2)
// syz_open_dev(dev strconst, id intptr, flags flags[open_flags]) fd
char buf[1024];
char* hash;
- NONFAILING(strncpy(buf, (char*)a0, sizeof(buf)));
+ NONFAILING(strncpy(buf, (char*)a0, sizeof(buf) - 1));
buf[sizeof(buf) - 1] = 0;
while ((hash = strchr(buf, '#'))) {
*hash = '0' + (char)(a1 % 10); // 10 devices should be enough for everyone.