From: Jens Axboe <axboe@suse.de>
Date: Wed, 5 Oct 2005 11:05:00 +0000 (+0200)
Subject: [PATCH] blktrace: sanity check the buf_size argument, cap at 16MiB.
X-Git-Tag: blktrace-0.99~37
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=183a0855c6cc254df40ef443373afda9c6930561;p=blktrace.git

[PATCH] blktrace: sanity check the buf_size argument, cap at 16MiB.
---

diff --git a/blktrace.c b/blktrace.c
index 8d94cbe..63b58ba 100644
--- a/blktrace.c
+++ b/blktrace.c
@@ -710,7 +710,7 @@ int main(int argc, char *argv[])
 			return 0;
 		case 'b':
 			buf_size = atoi(optarg);
-			if (buf_size <= 0) {
+			if (buf_size <= 0 || buf_size > 16*1024) {
 				fprintf(stderr,
 					"Invalid buffer size (%d)\n", buf_size);
 				return 1;