syzbot

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info
Mem abort info:
  ESR = 0x0000000086000006
  EC = 0x21: IABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000135301000
[0000000000000000] pgd=080000011e2a0403, p4d=080000011e2a0403, pud=0800000130aea403, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 6697 Comm: syz.1.6 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 83400805 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=-c)
pc : 0x0
lr : ptp_sys_offset drivers/ptp/ptp_chardev.c:428 [inline]
lr : ptp_ioctl+0xbb4/0x1ad4 drivers/ptp/ptp_chardev.c:545
sp : ffff8000a4237940
x29: ffff8000a4237c90 x28: 1fffe00018cb1000 x27: dfff800000000000
x26: ffff700014846f30 x25: ffff0000d60ad000 x24: 0000000000000000
x23: ffff0000cc3ba200 x22: ffff0000d60ad000 x21: ffff0000c6588000
x20: ffff0000d60ad000 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff800093303000 x16: ffff80008052b604 x15: 0000000000000001
x14: 1ffff00012e6ffc8 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700012e6ffc9 x10: 0000000000ff0100 x9 : ffff8000a4237980
x8 : 0000000000000000 x7 : ffff80008062f804 x6 : 0000000000000000
x5 : ffff8000934b0148 x4 : 0000000000000001 x3 : ffff80008062f810
x2 : 0000000000000000 x1 : ffff8000a4237ab0 x0 : ffff0000cc3ba200
Call trace:
 0x0 (P)
 posix_clock_ioctl+0xd8/0x124 kernel/time/posix-clock.c:86
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:746
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
---[ end trace 0000000000000000 ]---