diff options
| -rw-r--r-- | io_uring/memmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/memmap.c b/io_uring/memmap.c index 85c66fa54956..6ab59c60dfd0 100644 --- a/io_uring/memmap.c +++ b/io_uring/memmap.c @@ -140,6 +140,8 @@ struct page **io_pin_pages(unsigned long uaddr, unsigned long len, int *npages) nr_pages = end - start; if (WARN_ON_ONCE(!nr_pages)) return ERR_PTR(-EINVAL); + if (WARN_ON_ONCE(nr_pages > INT_MAX)) + return ERR_PTR(-EOVERFLOW); pages = kvmalloc_array(nr_pages, sizeof(struct page *), GFP_KERNEL); if (!pages) |