syzbot

killall: can't k[   29.014329][  T285] BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:102 [inline]
killall: can't k[   29.014329][  T285] BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:198 [inline]
killall: can't k[   29.014329][  T285] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:455
ill pid 342: No [   29.032406][  T285] CPU: 0 PID: 285 Comm: syz-executor Tainted: G        W          syzkaller #0
such process
ki[   29.056177][  T285]  <TASK>
llall: can't kil[   29.060526][  T285]  __dump_stack+0x21/0x24 lib/dump_stack.c:88
l pid 343: No su[   29.066253][  T285]  dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
ch process[   29.072335][  T285]  ? __cfi_dump_stack_lvl+0x8/0x8 lib/dump_stack.c:83

killall: can't k[   29.117543][  T285]  d_delete_notify include/linux/fsnotify.h:289 [inline]
killall: can't k[   29.117543][  T285]  vfs_rmdir+0x25f/0x500 fs/namei.c:4211
ill pid 378: No [   29.123178][  T285]  incfs_kill_sb+0x105/0x220 fs/incfs/vfs.c:1995
such process
killall: can't k[   29.161682][  T285]  ? __cfi_task_work_run+0x10/0x10 kernel/task_work.c:-1
ill pid 379: No [   29.168311][  T285]  ? ksys_umount fs/namespace.c:1832 [inline]
ill pid 379: No [   29.168311][  T285]  ? __do_sys_umount fs/namespace.c:1837 [inline]
ill pid 379: No [   29.168311][  T285]  ? __se_sys_umount fs/namespace.c:1835 [inline]
ill pid 379: No [   29.168311][  T285]  ? __x64_sys_umount+0x12d/0x170 fs/namespace.c:1835
such process[   29.174766][  T285]  ? __cfi___x64_sys_umount+0x10/0x10 fs/namespace.c:-1

Stopping klogd: [   29.389311][  T346] usb 2-1: device descriptor read/64, error -71