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-rw-r--r--fs/adfs/super.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index 2c5b2076acf9..a4cd0a5159dd 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -317,6 +317,9 @@ static int adfs_validate_bblk(struct super_block *sb, struct buffer_head *bh,
if (adfs_checkdiscrecord(dr))
return -EILSEQ;
+ if ((dr->nzones | dr->nzones_high << 8) == 0)
+ return -EILSEQ;
+
*drp = dr;
return 0;
}