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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-02-04 00:38:40 +0300 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-02-04 02:35:02 +0300 |
| commit | 54cc533aaa0dc331ad126f0aacfb19572adee638 (patch) | |
| tree | 45bb1bb889fc26a94931bc09319625f10cb80d39 /net/sunrpc | |
| parent | a995e9eb3258df6ab2e9f958e08003978e50d568 (diff) | |
| download | linux-54cc533aaa0dc331ad126f0aacfb19572adee638.tar.xz | |
RPC: Fix double free in portmapper code
rpc_run_task is guaranteed to always call ->rpc_release.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/pmap_clnt.c | 8 |
1 files changed, 5 insertions, 3 deletions
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); } /** |