mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
a860a167d8
fstests only supports Linux, so get rid of this unnecessary predicate. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
86 lines
2.1 KiB
Bash
Executable File
86 lines
2.1 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2020 Red Hat, Inc. All Rights Reserved.
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#
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# FS QA Test 520
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#
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# Verify kernel doesn't hang when mounting a crafted image
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# with bad agf.freeblks metadata due to CVE-2020-12655.
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#
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# Also, check if
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# commit d0c7feaf8767 ("xfs: add agf freeblocks verify in xfs_agf_verify")
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# is included in the current kernel.
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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_scratch_unmount > /dev/null 2>&1
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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_supported_fs xfs
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_disable_dmesg_check
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_require_check_dmesg
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_require_scratch_nocheck
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force_crafted_metadata() {
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_scratch_mkfs_xfs -f $fsdsopt "$4" >> $seqres.full 2>&1 || _fail "mkfs failed"
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_scratch_xfs_set_metadata_field "$1" "$2" "$3" >> $seqres.full 2>&1
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local kmsg="xfs/$seq: testing $1=$2 at $(date +"%F %T")"
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local mounted=0
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local hasmsg=0
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echo "${kmsg}" > /dev/kmsg
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_try_scratch_mount >> $seqres.full 2>&1 && mounted=1
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if [ $mounted -ne 0 ]; then
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dd if=/dev/zero of=$SCRATCH_MNT/test bs=65536 count=1 >> \
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$seqres.full 2>&1
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sync
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fi
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_dmesg_since_test_start | tac | sed -ne "0,\#${kmsg}#p" | tac | \
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egrep -q 'Metadata corruption detected at' && hasmsg=1
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_scratch_unmount > /dev/null 2>&1
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[ $mounted -eq 0 -o $hasmsg -eq 1 ] || \
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_fail "potential broken kernel (mounted=${mounted},hasmsg=${hasmsg})"
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}
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bigval=100000000
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fsdsopt="-d agcount=1,size=64m"
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force_crafted_metadata freeblks 0 "agf 0"
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force_crafted_metadata longest $bigval "agf 0"
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force_crafted_metadata length $bigval "agf 0"
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_scratch_mkfs_xfs_supported -m reflink=1 >> $seqres.full 2>&1 && \
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force_crafted_metadata refcntblocks $bigval "agf 0" "-m reflink=1"
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_scratch_mkfs_xfs_supported -m rmapbt=1 >> $seqres.full 2>&1 && \
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force_crafted_metadata rmapblocks $bigval "agf 0" "-m rmapbt=1"
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echo "Silence is golden"
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# success, all done
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status=0
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exit
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