From 02c6e1d08c9abfebae050ebeab5766935e849dc2 Mon Sep 17 00:00:00 2001 From: Yousong Zhou Date: Mon, 21 Oct 2019 06:10:27 +0000 Subject: [PATCH] exec: properly free memory on rpc_exec() error Signed-off-by: Yousong Zhou [fix whitespace] Signed-off-by: Jo-Philipp Wich --- exec.c | 7 ++++++- plugin.c | 9 ++++++--- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/exec.c b/exec.c index eb52966..f490ad7 100644 --- a/exec.c +++ b/exec.c @@ -313,7 +313,7 @@ rpc_exec(const char **args, rpc_exec_write_cb_t in, switch ((pid = fork())) { case -1: - return rpc_errno_status(); + goto fail_fork; case 0: uloop_done(); @@ -372,6 +372,10 @@ rpc_exec(const char **args, rpc_exec_write_cb_t in, return UBUS_STATUS_OK; +fail_fork: + close(epipe[0]); + close(epipe[1]); + fail_epipe: close(opipe[0]); close(opipe[1]); @@ -381,5 +385,6 @@ fail_opipe: close(ipipe[1]); fail_ipipe: + free(c); return rpc_errno_status(); } diff --git a/plugin.c b/plugin.c index 877345d..bf7c74d 100644 --- a/plugin.c +++ b/plugin.c @@ -161,9 +161,12 @@ rpc_plugin_call(struct ubus_context *ctx, struct ubus_object *obj, c->argv[1] = "call"; c->argv[2] = c->method; - return rpc_exec(c->argv, rpc_plugin_call_stdin_cb, - rpc_plugin_call_stdout_cb, rpc_plugin_call_stderr_cb, - rpc_plugin_call_finish_cb, c, ctx, req); + rv = rpc_exec(c->argv, rpc_plugin_call_stdin_cb, + rpc_plugin_call_stdout_cb, rpc_plugin_call_stderr_cb, + rpc_plugin_call_finish_cb, c, ctx, req); + + if (rv == UBUS_STATUS_OK) + return rv; fail: if (c)