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-rw-r--r--fs/btrfs/send.c5
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;