From 5a9f8b2f75f1a70e0808905f998e018211d63937 Mon Sep 17 00:00:00 2001 From: Vyacheslav Makarov Date: Fri, 11 Jun 2021 18:20:29 +0300 Subject: [PATCH] [PGPRO-5172] Fixed infinite looping in the receive_msg_by_parts function. --- pg_query_state.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/pg_query_state.c b/pg_query_state.c index 46556d1..d461e20 100644 --- a/pg_query_state.c +++ b/pg_query_state.c @@ -970,19 +970,21 @@ receive_msg_by_parts(shm_mq_handle *mqh, Size *total, void **datap, shm_mq_result mq_receive_result; shm_mq_msg *buff; int offset; - int *expected; + int *expected; + int expected_data; Size len; /* Get the expected number of bytes in message */ mq_receive_result = shm_mq_receive(mqh, &len, (void **) &expected, nowait); + expected_data = *expected; if (mq_receive_result != SHM_MQ_SUCCESS) return mq_receive_result; Assert(len == sizeof(int)); - *datap = palloc0(*expected); + *datap = palloc0(expected_data); /* Get the message itself */ - for (offset = 0; offset < *expected; ) + for (offset = 0; offset < expected_data; ) { /* Keep receiving new messages until we assemble the full message */ mq_receive_result = shm_mq_receive(mqh, &len, ((void **) &buff), nowait); pFad - Phonifier reborn

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