Hello, syzbot found the following issue on:
HEAD commit: d6efb3ac Merge tag 'tty-5.9-rc1' of git://git.kernel.org/p.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=172b6976900000 kernel config: https://syzkaller.appspot.com/x/.config?x=ff87594cecb7e666 dashboard link: https://syzkaller.appspot.com/bug?extid=48135e34de22e3a82c99 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1373613a900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+48135e34de22e3a82...@syzkaller.appspotmail.com netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x41d0/0x5640 kernel/locking/lockdep.c:4296 Read of size 8 at addr ffff8880936320a0 by task syz-executor.0/6858 CPU: 1 PID: 6858 Comm: syz-executor.0 Not tainted 5.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: dump_sta --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkal...@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches