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SubjectRe: KASAN: use-after-free Read in ext4_xattr_set_entry (2)
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syzbot has bisected this bug to:

commit 8835cae5f2abd7f7a3143afe357f416aff5517a4
Author: Chris Lapa <chris@lapa.com.au>
Date: Wed Jan 11 01:44:47 2017 +0000

power: supply: bq27xxx: adds specific support for bq27520-g4 revision.

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16661f41e00000
start commit: ae4b064e Merge tag 'afs-fixes-20191211' of git://git.kerne..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=15661f41e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=11661f41e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=79f79de2a27d3e3d
dashboard link: https://syzkaller.appspot.com/bug?extid=4a39a025912b265cacef
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15ec1332e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=163455dee00000

Reported-by: syzbot+4a39a025912b265cacef@syzkaller.appspotmail.com
Fixes: 8835cae5f2ab ("power: supply: bq27xxx: adds specific support for
bq27520-g4 revision.")

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

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