R13: 00007f257c20664a R14: 0000000000026f1f R15: 00007fff2d7c07a0 ---[ end trace 85bf332360b2d698 ]--- ================================================================== 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/2452 CPU: 1 PID: 2452 Comm: syz-executor Tainted: G W 5.10.216-syzkaller-00510-ga4a2b7a82ee4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/