From c42acc23ff91ea0170eab5f1e10499dcfc4e0c92 Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Wed, 30 Aug 2017 15:56:19 +0200 Subject: [PATCH] xfs: Don't attempt to iterate over empty directory. Reported by: Tuomas Tynkkynen --- grub-core/fs/xfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/grub-core/fs/xfs.c b/grub-core/fs/xfs.c index 9f66dd6e4..c6031bd3f 100644 --- a/grub-core/fs/xfs.c +++ b/grub-core/fs/xfs.c @@ -828,6 +828,9 @@ grub_xfs_iterate_dir (grub_fshelp_node_t dir, entries = (grub_be_to_cpu32 (tail->leaf_count) - grub_be_to_cpu32 (tail->leaf_stale)); + if (!entries) + continue; + /* Iterate over all entries within this block. */ while ((char *)direntry < (char *)tail) { -- 2.17.1