6.10-stable review patch. If anyone has any objections, please let me know.
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From: Stefan Metzmacher metze@samba.org
commit c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf upstream.
This happens when called from SMB2_read() while using rdma and reaching the rdma_readwrite_threshold.
Cc: stable@vger.kernel.org Fixes: a6559cc1d35d ("cifs: split out smb3_use_rdma_offload() helper") Reviewed-by: David Howells dhowells@redhat.com Signed-off-by: Stefan Metzmacher metze@samba.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/smb/client/smb2pdu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/smb/client/smb2pdu.c +++ b/fs/smb/client/smb2pdu.c @@ -4435,7 +4435,7 @@ smb2_new_read_req(void **buf, unsigned i * If we want to do a RDMA write, fill in and append * smbd_buffer_descriptor_v1 to the end of read request */ - if (smb3_use_rdma_offload(io_parms)) { + if (rdata && smb3_use_rdma_offload(io_parms)) { struct smbd_buffer_descriptor_v1 *v1; bool need_invalidate = server->dialect == SMB30_PROT_ID;