1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c
index 08129b7b80ab..41c48a1e8baa 100644
--- a/drivers/firmware/efi/test/efi_test.c
+++ b/drivers/firmware/efi/test/efi_test.c
@@ -593,6 +593,9 @@ static long efi_runtime_query_capsulecaps(unsigned long arg)
         if (copy_from_user(&qcaps, qcaps_user, sizeof(qcaps)))
                 return -EFAULT;
 
+        if (qcaps.capsule_count == ULONG_MAX)
+                return -EINVAL;
+
         capsules = kcalloc(qcaps.capsule_count + 1,
                            sizeof(efi_capsule_header_t), GFP_KERNEL);
         if (!capsules)