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revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
This fix was nacked by Philip, for reasons identified in the email linked
below.
Link: https://lkml.kernel.org/r/68f15d67-8945-2728-1f17-5b53a80ec52d@squashfs.org.uk
Fixes: 72e544b1b2
("squashfs: harden sanity check in squashfs_read_xattr_id_table")
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: Fedor Pchelkin <pchelkin@ispras.ru>
Cc: Phillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -76,7 +76,7 @@ __le64 *squashfs_read_xattr_id_table(struct super_block *sb, u64 table_start,
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/* Sanity check values */
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/* there is always at least one xattr id */
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if (*xattr_ids <= 0)
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if (*xattr_ids == 0)
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return ERR_PTR(-EINVAL);
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len = SQUASHFS_XATTR_BLOCK_BYTES(*xattr_ids);
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