diff options
| author | Rasmus Villemoes <rasmus.villemoes@prevas.dk> | 2023-03-24 08:55:19 +0100 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@foss.st.com> | 2023-04-19 10:02:28 +0200 |
| commit | daf07215e8c4aed16af81e1615396f5502040c1f (patch) | |
| tree | bc6f4a5b69b81b1761c2751511defabd97feb28a /arch/arm/mach-stm32mp/cpu.c | |
| parent | bb0352009822239044ac7f2eafcdff8c71d56ed2 (diff) | |
stm32mp: fix various array bounds checks
In all these cases, the index on the LHS is immediately afterwards
used to access the array appearing in the ARRAY_SIZE() on the RHS - so
if that index is equal to the array size, we'll access
one-past-the-end of the array.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Diffstat (limited to 'arch/arm/mach-stm32mp/cpu.c')
| -rw-r--r-- | arch/arm/mach-stm32mp/cpu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c index dc4112d5e6c..e2f67fc4233 100644 --- a/arch/arm/mach-stm32mp/cpu.c +++ b/arch/arm/mach-stm32mp/cpu.c @@ -190,7 +190,7 @@ static void setup_boot_mode(void) __func__, boot_ctx, boot_mode, instance, forced_mode); switch (boot_mode & TAMP_BOOT_DEVICE_MASK) { case BOOT_SERIAL_UART: - if (instance > ARRAY_SIZE(serial_addr)) + if (instance >= ARRAY_SIZE(serial_addr)) break; /* serial : search associated node in devicetree */ sprintf(cmd, "serial@%x", serial_addr[instance]); @@ -220,7 +220,7 @@ static void setup_boot_mode(void) break; case BOOT_FLASH_SD: case BOOT_FLASH_EMMC: - if (instance > ARRAY_SIZE(sdmmc_addr)) + if (instance >= ARRAY_SIZE(sdmmc_addr)) break; /* search associated sdmmc node in devicetree */ sprintf(cmd, "mmc@%x", sdmmc_addr[instance]); |