1 files changed, 3 insertions, 1 deletions

diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index d3e619692ee0..c7d80e24f24e 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -124,7 +124,9 @@ static __u32 cifs_ssetup_hdr(struct cifs_ses *ses, SESSION_SETUP_ANDX *pSMB)
         /*      that we use in next few lines                               */
         /* Note that header is initialized to zero in header_assemble */
         pSMB->req.AndXCommand = 0xFF;
-        pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
+        pSMB->req.MaxBufferSize = cpu_to_le16(min_t(u32,
+                                        CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4,
+                                        USHRT_MAX));
         pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
         pSMB->req.VcNumber = get_next_vcnum(ses);