ed

commit fec32b46a7e7f226df503b2c25b959ad7b3f59c8
parent b9f37fb33e8f033180758335d8a4c02af9dae075
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Tue,  1 Dec 2015 18:49:25 +0100

ed: prevent buffer overflow in regex input

Diffstat:
M
ed.c
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/ed.c b/ed.c
@@ -251,6 +251,8 @@ compile()
 		if (!(pattern = malloc(sizeof(*pattern))))
 			error("no memory");
 	}
+	if (len >= sizeof(buff))
+		error("regular expression too long");
 	memcpy(buff, bp, len);
 	buff[len] = '\0';
 	if (regcomp(pattern, buff, 0))