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-rw-r--r--fs/notify/fanotify/fanotify_user.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 483a6a1255fb..9ec313e9f6e1 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -502,7 +502,7 @@ static int copy_fid_info_to_user(__kernel_fsid_t *fsid, struct fanotify_fh *fh,
}
/* Pad with 0's */
- WARN_ON_ONCE(len >= FANOTIFY_EVENT_ALIGN);
+ WARN_ON_ONCE(len < 0 || len >= FANOTIFY_EVENT_ALIGN);
if (len > 0 && clear_user(buf, len))
return -EFAULT;