Chuck Lever 3ee6a2bc14 xprtrdma: Fix XDRBUF_SPARSE_PAGES support ... commit 15261b9126 upstream. Olga K. observed that rpcrdma_marsh_req() allocates sparse pages only when it has determined that a Reply chunk is necessary. There are plenty of cases where no Reply chunk is needed, but the XDRBUF_SPARSE_PAGES flag is set. The result would be a crash in rpcrdma_inline_fixup() when it tries to copy parts of the received Reply into a missing page. To avoid crashing, handle sparse page allocation up front. Until XATTR support was added, this issue did not appear often because the only SPARSE_PAGES consumer always expected a reply large enough to always require a Reply chunk. Reported-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-12-30 11:51:38 +01:00
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Makefile	xprtrdma: Remove support for FMR memory registration	2019-01-02 12:05:17 -05:00
backchannel.c	SUNRPC: The RDMA back channel mustn't disappear while requests are outstanding	2019-10-30 12:04:35 -04:00
frwr_ops.c	xprtrdma: Fix DMA scatter-gather list mapping imbalance	2020-02-19 19:53:02 +01:00
module.c	SUNRPC: xprt_load_transport() needs to support the netid "rdma6"	2020-12-30 11:51:16 +01:00
rpc_rdma.c	xprtrdma: Fix XDRBUF_SPARSE_PAGES support	2020-12-30 11:51:38 +01:00
svc_rdma.c	svcrdma: Remove svc_rdma_wq	2019-08-19 10:59:28 -04:00
svc_rdma_backchannel.c	svcrdma: Fix backchannel return code	2020-10-01 13:18:01 +02:00
svc_rdma_recvfrom.c	svcrdma: Fix backchannel return code	2020-10-01 13:18:01 +02:00
svc_rdma_rw.c	svcrdma: Fix page leak in svc_rdma_recv_read_chunk()	2020-08-19 08:16:21 +02:00
svc_rdma_sendto.c	svcrdma: fix bounce buffers for unaligned offsets and multiple pages	2020-10-29 09:57:55 +01:00
svc_rdma_transport.c	nfsd: Fix NFSv4 READ on RDMA when using readv	2020-08-11 15:33:42 +02:00
transport.c	SUNRPC: xprt_load_transport() needs to support the netid "rdma6"	2020-12-30 11:51:16 +01:00
verbs.c	xprtrdma: Fix oops in Receive handler after device removal	2020-01-17 19:48:44 +01:00
xprt_rdma.h	xprtrdma: Fix oops in Receive handler after device removal	2020-01-17 19:48:44 +01:00