blob: 68c57525e792935a55f61f96ca77768e7452ab5f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 Facebook, Inc. All Rights Reserved.
#
# FS QA Test 431
#
# Verify kernel doesn't panic when user attempts to set realtime flags
# on non-realtime FS, using kernel compiled with CONFIG_XFS_RT. Unpatched
# kernels will panic during this test. Kernels not compiled with
# CONFIG_XFS_RT should pass test.
#
# See CVE-2017-14340 for more information.
#
. ./common/preamble
_begin_fstest auto quick
# Import common functions.
. ./common/filter
# real QA test starts here
# Modify as appropriate.
_supported_fs xfs
_require_xfs_io_command "chattr" "t"
_require_xfs_io_command "fsync"
_require_xfs_io_command "pwrite"
_require_scratch
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
# Set realtime inherit flag on scratch mount, suppress output
# as this may simply error out on future kernels
_xfs_force_bdev realtime $SCRATCH_MNT &> /dev/null
# Check if 't' is actually set, as xfs_io returns 0 even when it fails to set
# an attribute. And erroring out here is fine, this would be desired behavior
# for FSes without realtime devices present.
if $XFS_IO_PROG -c 'lsattr' $SCRATCH_MNT | grep -q 't'; then
# Attempt to write/fsync data to file
$XFS_IO_PROG -fc 'pwrite 0 1m' -c fsync $SCRATCH_MNT/testfile |
tee -a $seqres.full | _filter_xfs_io
# Remove the testfile and rt inherit flag after we are done or
# xfs_repair will fail.
rm -f $SCRATCH_MNT/testfile
_xfs_force_bdev data $SCRATCH_MNT | tee -a $seqres.full 2>&1
fi
# success, all done
status=0
exit
|
