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https://src.fedoraproject.org/rpms/grub2.git
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25 lines
786 B
Diff
25 lines
786 B
Diff
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From c42acc23ff91ea0170eab5f1e10499dcfc4e0c92 Mon Sep 17 00:00:00 2001
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From: Vladimir Serbinenko <phcoder@gmail.com>
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Date: Wed, 30 Aug 2017 15:56:19 +0200
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Subject: [PATCH] xfs: Don't attempt to iterate over empty directory.
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Reported by: Tuomas Tynkkynen
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---
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grub-core/fs/xfs.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/grub-core/fs/xfs.c b/grub-core/fs/xfs.c
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index 9f66dd6e4c6..c6031bd3f71 100644
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--- a/grub-core/fs/xfs.c
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+++ b/grub-core/fs/xfs.c
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@@ -828,6 +828,9 @@ grub_xfs_iterate_dir (grub_fshelp_node_t dir,
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entries = (grub_be_to_cpu32 (tail->leaf_count)
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- grub_be_to_cpu32 (tail->leaf_stale));
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+ if (!entries)
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+ continue;
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+
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/* Iterate over all entries within this block. */
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while ((char *)direntry < (char *)tail)
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{
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