openrisc: add NR_CPUS Kconfig default value

[mirror_ubuntu-bionic-kernel.git] / mm / swapfile.c

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 2210de290b54d160d31afc937471225077bf083a..f30438970cd176e5dde188bc6e05a28c3367e451 100644 (file)
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2224,6 +2224,8 @@ static unsigned long read_swap_header(struct swap_info_struct *p,
                swab32s(&swap_header->info.version);
                swab32s(&swap_header->info.last_page);
                swab32s(&swap_header->info.nr_badpages);
+               if (swap_header->info.nr_badpages > MAX_SWAP_BADPAGES)
+                       return 0;
                for (i = 0; i < swap_header->info.nr_badpages; i++)
                        swab32s(&swap_header->info.badpages[i]);
        }