Re: [syzbot] [ext4?] possible deadlock in ext4_xattr_set_handle (7)

From: syzbot

Date: Fri Oct 23 2026 - 00:20:17 EST


syzbot suspects this issue was fixed by commit:

commit 7461c60b9c6a839b13ad4c3490681a0cf5aa0637
Author: Yun Zhou <yun.zhou@xxxxxxxxxxxxx>
Date: Tue Jun 23 06:19:02 2026 +0000

ext4: skip extra isize expansion during mount to prevent deadlock

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=124e0a95580000
start commit: 61c03dfde854 Merge tag 'ntfs-for-7.2-rc3' of git://git.ker..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=98da55a882774dfe
dashboard link: https://syzkaller.appspot.com/bug?extid=f0b58a1f5075a90dd9a5
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=165aeb89580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10185432580000

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

#syz fix: ext4: skip extra isize expansion during mount to prevent deadlock

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