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SubjectRe: [syzbot] [udf?] KASAN: use-after-free Read in udf_sync_fs
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syzbot has bisected this issue to:

commit e8b4274735e416621cfb28c2802b4ad52da35d0f
Author: Steve Magnani <steve.magnani@digidescorp.com>
Date: Fri Feb 8 17:34:55 2019 +0000

udf: finalize integrity descriptor before writeback

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14e3d76fa80000
start commit: f8de32cc060b Merge tag 'tpmdd-v6.5-rc7' of git://git.kerne..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=16e3d76fa80000
console output: https://syzkaller.appspot.com/x/log.txt?x=12e3d76fa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=171b698bc2e613cf
dashboard link: https://syzkaller.appspot.com/bug?extid=82df44ede2faca24c729
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10df55d7a80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e4d78ba80000

Reported-by: syzbot+82df44ede2faca24c729@syzkaller.appspotmail.com
Fixes: e8b4274735e4 ("udf: finalize integrity descriptor before writeback")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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