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v4.14/base
linux-yocto/net/sunrpc
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Chuck Lever 64901930e7 svcrdma: Fix leak of transport addresses 
[ Upstream commit 1a33d8a284 ]

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: 5d252f90a8 ("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 13:12:39 +02:00
..
auth_gss sunrpc: clean up properly in gss_mech_unregister() 2020-06-20 10:25:20 +02:00
xprtrdma svcrdma: Fix leak of transport addresses 2020-10-01 13:12:39 +02:00
addr.c net: sunrpc: Fix off-by-one issues in 'rpc_ntop6' 2020-06-25 15:41:55 +02:00
auth_generic.c SUNRPC: Fix a bogus get/put in generic_key_to_expire() 2018-12-01 09:42:54 +01:00
auth_null.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
auth_unix.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
auth.c
backchannel_rqst.c SUNRPC: Don't hold the transport lock when receiving backchannel data 2017-08-16 15:10:16 -04:00
cache.c sunrpc: fix crash when cache_head become valid before update 2019-12-17 20:40:00 +01:00
clnt.c net :sunrpc :clnt :Fix xps refcount imbalance on the error path 2019-07-21 09:04:29 +02:00
debugfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig svcrdma: Introduce local rdma_rw API helpers 2017-04-25 17:25:55 -04:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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 sunrpc: fixed rollback in rpc_gssd_dummy_populate() 2020-06-30 15:38:09 -04:00
rpcb_clnt.c SUNRPC: stop printk reading past end of string 2020-09-23 10:46:34 +02:00
sched.c SUNRPC: Fix priority queue fairness 2019-11-24 08:22:52 +01:00
socklib.c
stats.c sunrpc: move pc_count out of struct svc_procinfo 2017-07-13 15:58:02 -04:00
sunrpc_syms.c
sunrpc.h
svc_xprt.c SUNRPC: Fix a potential buffer overflow in 'svc_print_xprts()' 2020-10-01 13:12:39 +02:00
svc.c sunrpc: use-after-free in svc_process_common() 2019-01-16 22:07:13 +01:00
svcauth_unix.c kernel: make groups_sort calling a responsibility group_info allocators 2017-12-20 10:10:18 +01:00
svcauth.c
svcsock.c sunrpc: use-after-free in svc_process_common() 2019-01-16 22:07:13 +01:00
sysctl.c
timer.c
xdr.c SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment() 2020-06-30 15:38:09 -04:00
xprt.c sunrpc: Fix connect metrics 2019-11-24 08:22:59 +01:00
xprtmultipath.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xprtsock.c sunrpc: safely reallow resvport min/max inversion 2019-12-01 09:13:42 +01:00