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revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
author
Andrew Morton
<akpm@linux-foundation.org>
Fri, 3 Feb 2023 02:07:35 +0000
(18:07 -0800)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Wed, 22 Feb 2023 11:59:50 +0000
(12:59 +0100)
commit
a5b21d8d791cd4db609d0bbcaa9e0c7e019888d1
upstream.
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:
72e544b1b28325
("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/squashfs/xattr_id.c
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diff --git
a/fs/squashfs/xattr_id.c
b/fs/squashfs/xattr_id.c
index
b88d19e
..
c8469c6
100644
(file)
--- a/
fs/squashfs/xattr_id.c
+++ b/
fs/squashfs/xattr_id.c
@@
-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);