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(parent: 18e601d) | patch
svcrdma: backchannel cannot share a page for send and rcv buffers
authorChuck Lever <chuck.lever@oracle.com>
Sat, 29 Oct 2016 02:22:33 +0000 (22:22 -0400)
committerJ. Bruce Fields <bfields@redhat.com>
Tue, 1 Nov 2016 19:23:58 +0000 (15:23 -0400)
commit8d42629be0cb6c58a5c77cd02e47974c0e724e63
tree3d2146cfe4432350fb9b795cc38ff7c0f5602216tree | snapshot (tar.gz zip)
parent18e601d6adae5042f82d105ccd3d4498050f2ebfcommit | diff
svcrdma: backchannel cannot share a page for send and rcv buffers

The underlying transport releases the page pointed to by rq_buffer
during xprt_rdma_bc_send_request. When the backchannel reply arrives,
rq_rbuffer then points to freed memory.

Fixes: 68778945e46f ('SUNRPC: Separate buffer pointers for RPC ...')
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
net/sunrpc/xprtrdma/svc_rdma_backchannel.c diff | blob | blame | history