28 lines
958 B
Diff
28 lines
958 B
Diff
From 74e48269ee9a15e230e25d0e3d2e50f5b0ba2b04 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Thu, 2 Jun 2022 16:02:54 +0200
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Subject: [PATCH] libblkid: (hfs) fix label use [fuzzing]
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Reported-by: Thibault Guittet <tguittet@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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libblkid/src/superblocks/hfs.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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diff --git a/libblkid/src/superblocks/hfs.c b/libblkid/src/superblocks/hfs.c
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index 9674b1481f..68cb30edbb 100644
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--- a/libblkid/src/superblocks/hfs.c
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+++ b/libblkid/src/superblocks/hfs.c
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@@ -173,7 +173,10 @@ static int probe_hfs(blkid_probe pr, const struct blkid_idmag *mag)
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hfs_set_uuid(pr, hfs->finder_info.id, sizeof(hfs->finder_info.id));
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- blkid_probe_set_label(pr, hfs->label, hfs->label_len);
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+ size = hfs->label_len;
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+ if ((size_t) size > sizeof(hfs->label))
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+ size = sizeof(hfs->label);
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+ blkid_probe_set_label(pr, hfs->label, size);
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return 0;
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}
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