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SubjectRe: KASAN: use-after-free Read in addr_handler
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syzbot has bisected this bug to:

commit 4f4c867c91e644fc9d461c8c5cf2f09d6d5bcac2
Author: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue Oct 2 08:54:16 2018 +0000

irqchip/irq-mvebu-icu: Support ICU subnodes

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=163319df200000
start commit: a3b22b9f Linux 5.0-rc7
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=153319df200000
console output: https://syzkaller.appspot.com/x/log.txt?x=113319df200000
kernel config: https://syzkaller.appspot.com/x/.config?x=7132344728e7ec3f
dashboard link: https://syzkaller.appspot.com/bug?extid=b358909d8d01556b790b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1493d4d0c00000

Reported-by: syzbot+b358909d8d01556b790b@syzkaller.appspotmail.com
Fixes: 4f4c867c91e6 ("irqchip/irq-mvebu-icu: Support ICU subnodes")

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

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