From 54cc533aaa0dc331ad126f0aacfb19572adee638 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sat, 3 Feb 2007 13:38:40 -0800 Subject: RPC: Fix double free in portmapper code rpc_run_task is guaranteed to always call ->rpc_release. Signed-off-by: Trond Myklebust --- net/sunrpc/pmap_clnt.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'net/sunrpc') diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c index 3946ec3eb517..76e59e9b8fb8 100644 --- a/net/sunrpc/pmap_clnt.c +++ b/net/sunrpc/pmap_clnt.c @@ -62,7 +62,10 @@ static inline void pmap_map_free(struct portmap_args *map) static void pmap_map_release(void *data) { - pmap_map_free(data); + struct portmap_args *map = data; + + xprt_put(map->pm_xprt); + pmap_map_free(map); } static const struct rpc_call_ops pmap_getport_ops = { @@ -133,7 +136,7 @@ void rpc_getport(struct rpc_task *task) status = -EIO; child = rpc_run_task(pmap_clnt, RPC_TASK_ASYNC, &pmap_getport_ops, map); if (IS_ERR(child)) - goto bailout; + goto bailout_nofree; rpc_put_task(child); task->tk_xprt->stat.bind_count++; @@ -222,7 +225,6 @@ static void pmap_getport_done(struct rpc_task *child, void *data) child->tk_pid, status, map->pm_port); pmap_wake_portmap_waiters(xprt, status); - xprt_put(xprt); } /** -- cgit v1.2.3-59-g8ed1b