1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index ebdcecda3583..ed4853f194c4 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -670,6 +670,11 @@ static int do_insnlist_ioctl(struct comedi_device *dev,
                 goto error;
         }
 
+        if (sizeof(struct comedi_insn) * insnlist.n_insns < insnlist.n_insns) {
+                ret = -EINVAL;
+                goto error;
+        }
+
         insns =
             kmalloc(sizeof(struct comedi_insn) * insnlist.n_insns, GFP_KERNEL);
         if (!insns) {