This is a note to let you know that I've just added the patch titled
nvme-tcp: fix data digest pointer calculation
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nvme-tcp-fix-data-digest-pointer-calculation.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d89b9f3bbb58e9e378881209756b0723694f22ff Mon Sep 17 00:00:00 2001
From: Varun Prakash <varun@xxxxxxxxxxx>
Date: Mon, 25 Oct 2021 22:47:30 +0530
Subject: nvme-tcp: fix data digest pointer calculation
From: Varun Prakash <varun@xxxxxxxxxxx>
commit d89b9f3bbb58e9e378881209756b0723694f22ff upstream.
ddgst is of type __le32, &req->ddgst + req->offset
increases &req->ddgst by 4 * req->offset, fix this by
type casting &req->ddgst to u8 *.
Fixes: 3f2304f8c6d6 ("nvme-tcp: add NVMe over TCP host driver")
Signed-off-by: Varun Prakash <varun@xxxxxxxxxxx>
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/nvme/host/tcp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -962,7 +962,7 @@ static int nvme_tcp_try_send_ddgst(struc
int ret;
struct msghdr msg = { .msg_flags = MSG_DONTWAIT | MSG_EOR };
struct kvec iov = {
- .iov_base = &req->ddgst + req->offset,
+ .iov_base = (u8 *)&req->ddgst + req->offset,
.iov_len = NVME_TCP_DIGEST_LENGTH - req->offset
};
Patches currently in stable-queue which might be from varun@xxxxxxxxxxx are
queue-5.4/nvme-tcp-fix-data-digest-pointer-calculation.patch
queue-5.4/nvmet-tcp-fix-data-digest-pointer-calculation.patch
