From 67c9eb276d5fe55b6ef09abce7f589b20938605c Mon Sep 17 00:00:00 2001
From: turekt <32360115+turekt@users.noreply.github.com>
Date: Mon, 14 Dec 2020 19:54:08 +0000
Subject: [PATCH] Stack buffer overflow fix

Changing the type of `to_read` from `uint32_t` to `int32_t` makes it aware of negative numbers and fixes the buffer overflow in ndisasm.
---
 disasm/ndisasm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/disasm/ndisasm.c b/disasm/ndisasm.c
index 01e0c5577..4d34b21ad 100644
--- a/disasm/ndisasm.c
+++ b/disasm/ndisasm.c
@@ -297,7 +297,7 @@ int main(int argc, char **argv)
     p = q = buffer;
     nextsync = next_sync(offset, &synclen);
     do {
-        uint32_t to_read = buffer + sizeof(buffer) - p;
+        int32_t to_read = buffer + sizeof(buffer) - p;
 	if ((nextsync || synclen) &&
 	    to_read > nextsync - offset - (p - q))
             to_read = nextsync - offset - (p - q);