1 files changed, 2 insertions, 0 deletions

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 60abc44385b7..fc9fb29d00eb 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -790,6 +790,8 @@ void iov_iter_revert(struct iov_iter *i, size_t unroll)
 {
         if (!unroll)
                 return;
+        if (WARN_ON(unroll > MAX_RW_COUNT))
+                return;
         i->count += unroll;
         if (unlikely(i->type & ITER_PIPE)) {
                 struct pipe_inode_info *pipe = i->pipe;