Re: [syzbot] [fat?] possible deadlock in do_user_addr_fault

From: syzbot
Date: Tue Aug 08 2023 - 13:32:43 EST


syzbot suspects this issue was fixed by commit:

commit ff84772fd45d486e4fc78c82e2f70ce5333543e6
Author: Sungjong Seo <sj1557.seo@xxxxxxxxxxx>
Date: Fri Jul 14 08:43:54 2023 +0000

exfat: release s_lock before calling dir_emit()

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16623aa9a80000
start commit: f8dba31b0a82 Merge tag 'asym-keys-fix-for-linus-v6.4-rc5' ..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=3c980bfe8b399968
dashboard link: https://syzkaller.appspot.com/bug?extid=278098b0faaf0595072b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=144ccf79280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=135fab79280000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: exfat: release s_lock before calling dir_emit()

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