From: Keith Busch <kbusch@kernel.org>
Date: Mon, 11 Mar 2019 16:46:47 +0000 (-0600)
Subject: t/io_uring: memset() allocated memory
X-Git-Tag: fio-3.14~22
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=d9c50de7c1d95e5c173ac6d7f5b3f0d63131f8b4;p=fio.git

t/io_uring: memset() allocated memory

But I totally rushed this patch and just sent it once I heard it "worked",
and it really doesn't because malloc doesn't zero the buffer. My mistake,
kzalloc spoiled me. Here's the fix:

Fixes: e39863e3cb61 ("t/io_uring: add depth options")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/t/io_uring.c b/t/io_uring.c
index 36aede9b..363cba3e 100644
--- a/t/io_uring.c
+++ b/t/io_uring.c
@@ -526,7 +526,8 @@ int main(int argc, char *argv[])
 		}
 	}
 
-	submitter = malloc(sizeof(*submitter) * depth * sizeof(struct iovec));
+	submitter = malloc(sizeof(*submitter) + depth * sizeof(struct iovec));
+	memset(submitter, 0, sizeof(*submitter) + depth * sizeof(struct iovec));
 	s = submitter;
 
 	flags = O_RDONLY | O_NOATIME;