From b4ef4c17d618eba0adccc4c7d9e9a1ef809fc9b6 Mon Sep 17 00:00:00 2001 From: Michael Heimpold Date: Sat, 8 Jan 2022 20:00:50 +0100 Subject: [PATCH] modbus_reply: fix copy & paste error in sanity check (fixes #614) --- src/modbus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/modbus.c b/src/modbus.c index 99f333b..e13bd0d 100644 --- a/src/modbus.c +++ b/src/modbus.c @@ -961,7 +961,7 @@ int modbus_reply(modbus_t *ctx, const uint8_t *req, nb_write, nb, MODBUS_MAX_WR_WRITE_REGISTERS, MODBUS_MAX_WR_READ_REGISTERS); } else if (mapping_address < 0 || (mapping_address + nb) > mb_mapping->nb_registers || - mapping_address < 0 || + mapping_address_write < 0 || (mapping_address_write + nb_write) > mb_mapping->nb_registers) { rsp_length = response_exception( ctx, &sft, MODBUS_EXCEPTION_ILLEGAL_DATA_ADDRESS, rsp, FALSE, -- libgit2 0.21.4