On Thu, May 20, 2021 at 04:50:41PM +0300, Andy Shevchenko wrote:

Let the krealloc_array() check for multiplication overflow.

Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com

drivers/hwtracing/coresight/coresight-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index 6c68d34d956e..a7971c68b0be 100644 --- a/drivers/hwtracing/coresight/coresight-core.c +++ b/drivers/hwtracing/coresight/coresight-core.c @@ -1730,9 +1730,9 @@ char *coresight_alloc_device_name(struct coresight_dev_list *dict, if (idx < 0) { /* Make space for the new entry */ idx = dict->nr_idx;

• list = krealloc(dict->fwnode_list,
  

• 		(idx + 1) * sizeof(*dict->fwnode_list),
  

• 		GFP_KERNEL);
  

• list = krealloc_array(dict->fwnode_list,
  

• 		      idx + 1, sizeof(*dict->fwnode_list),
  

• 		      GFP_KERNEL);
  

Applied - thanks.

Mathieu

if (ZERO_OR_NULL_PTR(list)) {
	idx = -ENOMEM;
	goto done;

-- 2.30.2