1 files changed, 5 insertions, 0 deletions

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 1ac3ca98c429..eb6537a08c1b 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -349,6 +349,11 @@ static int fs_path_ensure_buf(struct fs_path *p, int len)
         if (p->buf_len >= len)
                 return 0;
 
+        if (len > PATH_MAX) {
+                WARN_ON(1);
+                return -ENOMEM;
+        }
+
         path_len = p->end - p->start;
         old_buf_len = p->buf_len;