From: Steve French <stfrench@microsoft.com>
Date: Wed, 4 Sep 2019 23:07:52 -0500
Subject: [PATCH] smb3: fix signing verification of large reads
Git-commit: 46f17d17687e8140f2e4e517d7dfa65e62fcc5f4
References: bsc#1144333 bsc#1154355
Patch-mainline: v5.4-rc1
Code cleanup in the 5.1 kernel changed the array
passed into signing verification on large reads leading
to warning messages being logged when copying files to local
systems from remote.
SMB signature verification returned error = -5
This changeset fixes verification of SMB3 signatures of large
reads.
Suggested-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Acked-by: Paulo Alcantara <palcantara@suse.de
---
fs/cifs/smb2pdu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 4c9c34cdf05f..9a65e517df30 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3483,8 +3483,8 @@ smb2_readv_callback(struct mid_q_entry *mid)
struct smb2_sync_hdr *shdr =
(struct smb2_sync_hdr *)rdata->iov[0].iov_base;
struct cifs_credits credits = { .value = 0, .instance = 0 };
- struct smb_rqst rqst = { .rq_iov = rdata->iov,
- .rq_nvec = 2,
+ struct smb_rqst rqst = { .rq_iov = &rdata->iov[1],
+ .rq_nvec = 1,
.rq_pages = rdata->pages,
.rq_offset = rdata->page_offset,
.rq_npages = rdata->nr_pages,
--
2.23.0