On Sun, Dec 17, 2023 at 1:19 AM syzbot <syzbot+8608bb4553edb8c78f41@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > syzbot has bisected this issue to: > > commit c63e56a4a6523fcb1358e1878607d77a40b534bb > Author: Amir Goldstein <amir73il@xxxxxxxxx> > Date: Wed Aug 16 09:42:18 2023 +0000 > > ovl: do not open/llseek lower file with upper sb_writers held > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13723c01e80000 > start commit: 3bd7d7488169 Merge tag 'io_uring-6.7-2023-12-15' of git://.. > git tree: upstream > final oops: https://syzkaller.appspot.com/x/report.txt?x=10f23c01e80000 > console output: https://syzkaller.appspot.com/x/log.txt?x=17723c01e80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=53ec3da1d259132f > dashboard link: https://syzkaller.appspot.com/bug?extid=8608bb4553edb8c78f41 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17b8b6e1e80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16ec773ae80000 > > Reported-by: syzbot+8608bb4553edb8c78f41@xxxxxxxxxxxxxxxxxxxxxxxxx > Fixes: c63e56a4a652 ("ovl: do not open/llseek lower file with upper sb_writers held") > #syz test: https://github.com/amir73il/linux ovl-fixes