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lwiperf: fix double-free of pcb on error

pull/15295/head
xiaohuizhang98 2022-06-11 00:08:46 +08:00
parent 4e7b0329e8
commit fe13765d1f
1 changed files with 6 additions and 1 deletions
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7
connectivity/lwipstack/lwip/src/apps/lwiperf/lwip_lwiperf.c
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@ -263,7 +263,7 @@ lwiperf_tcp_close(lwiperf_state_tcp_t *conn, enum lwiperf_report_type report_typ
/* don't want to wait for free memory here... */
tcp_abort(conn->conn_pcb);
}
} else {
} else if (conn->server_pcb != NULL) {
/* no conn pcb, this is the listener pcb */
err = tcp_close(conn->server_pcb);
LWIP_ASSERT("error", err == ERR_OK);
@ -565,6 +565,11 @@ lwiperf_tcp_err(void *arg, err_t err)
{
lwiperf_state_tcp_t *conn = (lwiperf_state_tcp_t *)arg;
LWIP_UNUSED_ARG(err);
/* pcb is already deallocated, prevent double-free */
conn->conn_pcb = NULL;
conn->server_pcb = NULL;
lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
}