Re: [syzbot] [hfs?] possible deadlock in hfsplus_file_extend

From: Chao Yu
Date: Tue Oct 08 2024 - 02:23:46 EST


#syz fix: hfsplus: fix to avoid false alarm of circular locking

On 2024/9/28 11:15, syzbot wrote:
syzbot suspects this issue was fixed by commit:

commit be4edd1642ee205ed7bbf66edc0453b1be1fb8d7
Author: Chao Yu <chao@xxxxxxxxxx>
Date: Fri Jun 7 14:23:04 2024 +0000

hfsplus: fix to avoid false alarm of circular locking

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16c5f59f980000
start commit: 90d35da658da Linux 6.8-rc7
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=70429b75d4a1a401
dashboard link: https://syzkaller.appspot.com/bug?extid=325b61d3c9a17729454b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=159253ee180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11afd4fe180000

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

#syz fix: hfsplus: fix to avoid false alarm of circular locking

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