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| author | J. Bruce Fields <bfields@redhat.com> | 2018-12-20 18:35:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-26 11:44:26 +0300 |
| commit | 8554867473096389ca0f5b75ee6a7eb9a965eb76 (patch) | |
| tree | b67db67a0a614579181daddcd750d91fbb3d8ebc /net/sunrpc | |
| parent | babd8d8ca362ce44a2c9aaa9143a4b23e135be91 (diff) | |
| download | linux-8554867473096389ca0f5b75ee6a7eb9a965eb76.tar.xz | |
sunrpc: handle ENOMEM in rpcb_getport_async
commit 81c88b18de1f11f70c97f28ced8d642c00bb3955 upstream.
If we ignore the error we'll hit a null dereference a little later.
Reported-by: syzbot+4b98281f2401ab849f4b@syzkaller.appspotmail.com
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/rpcb_clnt.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c index 74b75c3ce39d..838ec5afde65 100644 --- a/net/sunrpc/rpcb_clnt.c +++ b/net/sunrpc/rpcb_clnt.c @@ -772,6 +772,12 @@ void rpcb_getport_async(struct rpc_task *task) case RPCBVERS_3: map->r_netid = xprt->address_strings[RPC_DISPLAY_NETID]; map->r_addr = rpc_sockaddr2uaddr(sap, GFP_ATOMIC); + if (!map->r_addr) { + status = -ENOMEM; + dprintk("RPC: %5u %s: no memory available\n", + task->tk_pid, __func__); + goto bailout_free_args; + } map->r_owner = ""; break; case RPCBVERS_2: @@ -794,6 +800,8 @@ void rpcb_getport_async(struct rpc_task *task) rpc_put_task(child); return; +bailout_free_args: + kfree(map); bailout_release_client: rpc_release_client(rpcb_clnt); bailout_nofree: |