kernel: kexec: copy user-array safely

[linux-2.6-microblaze.git] / kernel / kexec.c

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 107f355..8f35a5a 100644 (file)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -247,7 +247,7 @@ SYSCALL_DEFINE4(kexec_load, unsigned long, entry, unsigned long, nr_segments,
                ((flags & KEXEC_ARCH_MASK) != KEXEC_ARCH_DEFAULT))
                return -EINVAL;
 
-       ksegments = memdup_user(segments, nr_segments * sizeof(ksegments[0]));
+       ksegments = memdup_array_user(segments, nr_segments, sizeof(ksegments[0]));
        if (IS_ERR(ksegments))
                return PTR_ERR(ksegments);