RAX: ffffffffffffffda RBX: 00007f604e3dd6bd RCX: 00007f604e36ff19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000009 R08: 00007ffd95b2b737 R09: 00007ffd95b2ec50
R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffd95b2ec50
R13: 00007f604e3dd65d R14: 0000555556c6e4a8 R15: 0000000000000016
---[ end trace a6a26913aa78e887 ]---
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: null-ptr-deref in atomic_inc_return include/asm-generic/atomic-instrumented.h:250 [inline]
BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:423
Write of size 4 at addr 0000000000000170 by task syz-executor/6420

CPU: 1 PID: 6420 Comm: syz-execut