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linux-stable/net/sunrpc
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Chuck Lever 23cf1ee1f1 svcrdma: Fix leak of svc_rdma_recv_ctxt objects 
Utilize the xpo_release_rqst transport method to ensure that each
rqstp's svc_rdma_recv_ctxt object is released even when the server
cannot return a Reply for that rqstp.

Without this fix, each RPC whose Reply cannot be sent leaks one
svc_rdma_recv_ctxt. This is a 2.5KB structure, a 4KB DMA-mapped
Receive buffer, and any pages that might be part of the Reply
message.

The leak is infrequent unless the network fabric is unreliable or
Kerberos is in use, as GSS sequence window overruns, which result
in connection loss, are more common on fast transports.

Fixes: 3a88092ee3 ("svcrdma: Preserve Receive buffer until svc_rdma_sendto")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2020-04-17 12:40:38 -04:00
..
auth_gss NFS client updates for Linux 5.7 2020-04-07 13:51:39 -07:00
xprtrdma svcrdma: Fix leak of svc_rdma_recv_ctxt objects 2020-04-17 12:40:38 -04:00
addr.c SUNRPC: Use kmemdup_nul() in rpc_parse_scope_id() 2020-02-03 16:35:07 -05:00
auth.c SUNRPC: Remove broken gss_mech_list_pseudoflavors() 2020-01-15 10:54:32 -05:00
auth_null.c SUNRPC: Add rpc_auth::au_ralign field 2019-02-14 11:48:36 -05:00
auth_unix.c SUNRPC: Use the client user namespace when encoding creds 2019-04-26 16:24:32 -04:00
backchannel_rqst.c SUNRPC: Destroy the back channel when we destroy the host transport 2019-10-30 12:04:35 -04:00
cache.c SUNRPC/cache: Fix unsafe traverse caused double-free in cache_purge 2020-04-13 10:28:21 -04:00
clnt.c NFS client updates for Linux 5.7 2020-04-07 13:51:39 -07:00
debugfs.c NFS client updates for Linux 5.3 2019-07-18 14:32:33 -07:00
Kconfig SUNRPC: Drop redundant CONFIG_ from CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES 2019-07-06 14:54:53 -04:00
Makefile SUNRPC: remove generic cred code. 2018-12-19 13:52:46 -05:00
netns.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rpc_pipe.c kernel/notifier.c: remove blocking_notifier_chain_cond_register() 2019-12-04 19:44:12 -08:00
rpcb_clnt.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
sched.c SUNRPC: Don't start a timer on an already queued rpc task 2020-04-04 19:59:27 -04:00
socklib.c SUNRPC: Refactor xs_sendpages() 2020-03-16 12:04:33 -04:00
socklib.h SUNRPC: Refactor xs_sendpages() 2020-03-16 12:04:33 -04:00
stats.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
sunrpc.h SUNRPC: Teach server to use xprt_sock_sendmsg for socket sends 2020-03-16 12:04:33 -04:00
sunrpc_syms.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
svc.c SUNRPC: Teach server to use xprt_sock_sendmsg for socket sends 2020-03-16 12:04:33 -04:00
svc_xprt.c svcrdma: Fix leak of svc_rdma_recv_ctxt objects 2020-04-17 12:40:38 -04:00
svcauth.c SUNRPC: Trace gssproxy upcall results 2019-10-30 16:32:07 -04:00
svcauth_unix.c nfsd: export upcalls must not return ESTALE when mountd is down 2020-03-16 12:04:33 -04:00
svcsock.c svcrdma: Fix leak of svc_rdma_recv_ctxt objects 2020-04-17 12:40:38 -04:00
sysctl.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
timer.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
xdr.c SUNRPC: Remove xdr_buf_read_mic() 2020-03-16 10:18:45 -04:00
xprt.c svcrdma: Create a generic tracing class for displaying xdr_buf layout 2020-03-16 12:04:32 -04:00
xprtmultipath.c SUNRPC: Optimise transport balancing code 2019-07-18 14:43:52 -04:00
xprtsock.c SUNRPC: Fix backchannel RPC soft lockups 2020-04-17 12:40:31 -04:00