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revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"

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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>
This commit is contained in:
Andrew Morton 2023-02-02 18:07:35 -08:00
parent 388bc034d9
commit a5b21d8d79
1 changed files with 1 additions and 1 deletions
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2
fs/squashfs/xattr_id.c
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@ -76,7 +76,7 @@ __le64 *squashfs_read_xattr_id_table(struct super_block *sb, u64 table_start,
/* Sanity check values */
/* there is always at least one xattr id */
if (*xattr_ids <= 0)
if (*xattr_ids == 0)
return ERR_PTR(-EINVAL);
len = SQUASHFS_XATTR_BLOCK_BYTES(*xattr_ids);