In a while loop in cfi_flash.c the array "start" is accessed at the index "sector" before the index variable "sector" is bounds-checked, which might lead to accesses beyond the bounds of the array.
Swap the order of the checks in the "&&" expression, so that the short-circuit evaluation prevents out-of-bounds array accesses.
Signed-off-by: Mario Six mario.six@gdsys.cc --- drivers/mtd/cfi_flash.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 93bf9ed539..40a3544e5b 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -760,8 +760,8 @@ static flash_sect_t find_sector(flash_info_t *info, ulong addr) if (info != saved_info || sector >= info->sector_count) sector = 0;
- while ((info->start[sector] < addr) && - (sector < info->sector_count - 1)) + while ((sector < info->sector_count - 1) && + (info->start[sector] < addr)) sector++; while ((info->start[sector] > addr) && (sector > 0)) /*