Chuck Lever 503294dc02 svcrdma: Fix leak of transport addresses ...

[ Upstream commit 1a33d8a284b1e85e03b8c7b1ea8fb985fccd1d71 ]

Kernel memory leak detected:

unreferenced object 0xffff888849cdf480 (size 8):
  comm "kworker/u8:3", pid 2086, jiffies 4297898756 (age 4269.856s)
  hex dump (first 8 bytes):
    30 00 cd 49 88 88 ff ff                          0..I....
  backtrace:
    [<00000000acfc370b>] __kmalloc_track_caller+0x137/0x183
    [<00000000a2724354>] kstrdup+0x2b/0x43
    [<0000000082964f84>] xprt_rdma_format_addresses+0x114/0x17d [rpcrdma]
    [<00000000dfa6ed00>] xprt_setup_rdma_bc+0xc0/0x10c [rpcrdma]
    [<0000000073051a83>] xprt_create_transport+0x3f/0x1a0 [sunrpc]
    [<0000000053531a8e>] rpc_create+0x118/0x1cd [sunrpc]
    [<000000003a51b5f8>] setup_callback_client+0x1a5/0x27d [nfsd]
    [<000000001bd410af>] nfsd4_process_cb_update.isra.7+0x16c/0x1ac [nfsd]
    [<000000007f4bbd56>] nfsd4_run_cb_work+0x4c/0xbd [nfsd]
    [<0000000055c5586b>] process_one_work+0x1b2/0x2fe
    [<00000000b1e3e8ef>] worker_thread+0x1a6/0x25a
    [<000000005205fb78>] kthread+0xf6/0xfb
    [<000000006d2dc057>] ret_from_fork+0x3a/0x50

Introduce a call to xprt_rdma_free_addresses() similar to the way
that the TCP backchannel releases a transport's peer address
strings.

Fixes: 5d252f90a800 ("svcrdma: Add class for RDMA backwards direction transport")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-10-01 20:40:11 +02:00

..

backchannel.c

xprtrdma: Fix backchannel allocation of extra rpcrdma_reps

2020-05-10 10:28:03 +02:00

fmr_ops.c

xprtrdma: Basic support for Remote Invalidation

2016-09-19 13:08:38 -04:00

frwr_ops.c

xprtrdma: Make FRWR send queue entry accounting more accurate

2017-01-26 08:24:43 +01:00

Makefile

xprtrdma: Remove ALLPHYSICAL memory registration mode

2016-07-11 15:50:43 -04:00

module.c

rpcrdma: Merge svcrdma and xprtrdma modules into one

2015-06-04 16:56:02 -04:00

rpc_rdma.c

xprtrdma: Return -ENOBUFS when no pages are available

2018-07-25 11:24:02 +02:00

svc_rdma_backchannel.c

svcrdma: Fix leak of transport addresses

2020-10-01 20:40:11 +02:00

svc_rdma_marshal.c

svcrdma: Generalize svc_rdma_xdr_decode_req()

2016-05-13 15:53:06 -04:00

svc_rdma_recvfrom.c

svcrdma: avoid duplicate dma unmapping during error recovery

2017-01-26 08:24:40 +01:00

svc_rdma_sendto.c

svcrdma: support Remote Invalidation

2016-09-23 10:18:54 -04:00

svc_rdma_transport.c

sunrpc: svc_age_temp_xprts_now should not call setsockopt non-tcp transports

2016-11-14 10:30:58 -05:00

svc_rdma.c

svcrdma: Define maximum number of backchannel requests

2016-01-19 15:30:48 -05:00

transport.c

xprtrdma: Disable pad optimization by default

2017-03-12 06:41:52 +01:00

verbs.c

xprtrdma: Fix backchannel allocation of extra rpcrdma_reps

2020-05-10 10:28:03 +02:00

xprt_rdma.h

xprtrdma: Fix backchannel allocation of extra rpcrdma_reps

2020-05-10 10:28:03 +02:00