From: Clifford Wolf <clifford@clifford.at>
Date: Tue, 11 Mar 2014 12:09:01 +0000 (+0100)
Subject: Fixed memory corruption in passes/abc/blifparse.cc
X-Git-Tag: yosys-0.3.0~67
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fa75c8286e066ba4b73da94068662834cb671640;p=yosys.git

Fixed memory corruption in passes/abc/blifparse.cc
---

diff --git a/passes/abc/blifparse.cc b/passes/abc/blifparse.cc
index 2d46d1a8e..1d4da19ad 100644
--- a/passes/abc/blifparse.cc
+++ b/passes/abc/blifparse.cc
@@ -40,7 +40,7 @@ static bool read_next_line(char *&buffer, size_t &buffer_size, int &line_count,
 		}
 
 		if (buffer_len == 0 || buffer[buffer_len-1] == '\\') {
-			if (buffer[buffer_len-1] == '\\')
+			if (buffer_len > 0 && buffer[buffer_len-1] == '\\')
 				buffer[--buffer_len] = 0;
 			line_count++;
 			if (fgets(buffer+buffer_len, buffer_size-buffer_len, f) == NULL)