On Fri, Jun 14, 2024 at 08:54:39AM +0800, Hanjun Guo wrote: > +Cc Catalin > > On 2024/6/11 18:42, Hanjun Guo wrote: > > On 2024/6/7 0:50, Andy Shevchenko wrote: > > > Let the kememdup_array() take care about multiplication and possible > > > overflows. > > > > > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > > > --- > > > drivers/acpi/arm64/iort.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c > > > index c0b1c2c19444..e596dff20f1e 100644 > > > --- a/drivers/acpi/arm64/iort.c > > > +++ b/drivers/acpi/arm64/iort.c > > > @@ -822,7 +822,7 @@ static struct iommu_iort_rmr_data *iort_rmr_alloc( > > > return NULL; > > > /* Create a copy of SIDs array to associate with this rmr_data */ > > > - sids_copy = kmemdup(sids, num_sids * sizeof(*sids), GFP_KERNEL); > > > + sids_copy = kmemdup_array(sids, num_sids, sizeof(*sids), > > > GFP_KERNEL); > > > if (!sids_copy) { > > > kfree(rmr_data); > > > return NULL; > > > > Looks good to me, > > > > Acked-by: Hanjun Guo <guohanjun@xxxxxxxxxx> > > Catalin, would you mind pick this up as well? Any news? I do not see this even in Linux Next... -- With Best Regards, Andy Shevchenko