commit fdd08233fb104176d3480cdcb23aacb2ec6e2b83
author Chandni Cherukuri <chandni.cherukuri@arm.com> Wed Dec 05 12:34:45 2018 +0530
committer Sandrine Bailleux <sandrine.bailleux@arm.com> Tue Dec 11 13:54:43 2018 +0000
tree da67803d136e3b987545147fb58fb92eea52df26
parent 652d20a9e6fa0c4ca85bdb7341e98225c28eb61d

lib/irq: Correct the spi_desc_table array index

The size of the spi_desc_table array is defined as
'PLAT_MAX_SPI_OFFSET_ID - MIN_SPI_ID' which causes
out of bound access for SPI between
'PLAT_MAX_SPI_OFFSET_ID - MIN_SPI_ID' and 'PLAT_MAX_SPI_OFFSET_ID'.

Define the correct size of spi_desc_table array as
'PLAT_MAX_SPI_OFFSET_ID + 1'.

Change-Id: I32cc6fd1d63fa4a2e04387c8ce4b56f472f834ab
Signed-off-by: Chandni Cherukuri <chandni.cherukuri@arm.com>

lib/irq/irq.c

diff --git a/lib/irq/irq.c b/lib/irq/irq.c
index 5f2507f..c7d671f 100644
--- a/lib/irq/irq.c
+++ b/lib/irq/irq.c
@@ -23,7 +23,7 @@
 	(((irq_num) >= MIN_SPI_ID) &&					\
 	 ((irq_num) <= MIN_SPI_ID + PLAT_MAX_SPI_OFFSET_ID))
 
-static spi_desc spi_desc_table[PLAT_MAX_SPI_OFFSET_ID - MIN_SPI_ID];
+static spi_desc spi_desc_table[PLAT_MAX_SPI_OFFSET_ID + 1];
 static ppi_desc ppi_desc_table[PLATFORM_CORE_COUNT][
 				(MAX_PPI_ID + 1) - MIN_PPI_ID];
 static sgi_desc sgi_desc_table[PLATFORM_CORE_COUNT][MAX_SGI_ID + 1];