From: Jens Axboe <axboe@fb.com>
Date: Mon, 14 Apr 2014 14:45:13 +0000 (-0600)
Subject: file: fix potential buffer overrun in get_fs_free_counts()
X-Git-Tag: fio-2.1.9~59
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=da27a4bf0f9753fcc9da7b63f1be482fc0349907;ds=sidebyside

file: fix potential buffer overrun in get_fs_free_counts()

Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/filesetup.c b/filesetup.c
index bf56112b..c132c326 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -688,7 +688,8 @@ static unsigned long long get_fs_free_counts(struct thread_data *td)
 		} else if (f->filetype != FIO_TYPE_FILE)
 			continue;
 
-		strcpy(buf, f->file_name);
+		buf[255] = '\0';
+		strncpy(buf, f->file_name, 255);
 
 		if (stat(buf, &sb) < 0) {
 			if (errno != ENOENT)