syzbot

F2FS-fs (loop5): Mounted with checkpoint version = 48b305e4
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
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=000000011df9a000
[0000000000000000] pgd=080000010781f403, p4d=080000010781f403, pud=0800000111b01403, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 8224 Comm: syz.5.294 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_clock_gettime+0xa4/0xb8 drivers/ptp/ptp_clock.c:118
sp : ffff8000a1cf7c70
x29: ffff8000a1cf7c70 x28: ffff0000d77dbd80 x27: fffffffffffffffb
x26: 1fffe0001aefb7b0 x25: ffff80008aedca60 x24: ffff8000a1cf7ce0
x23: dfff800000000000 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000cc704600 x19: ffff8000a1cf7d00 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800082deb748 x15: 0000000000000001
x14: 1fffe000199b7419 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 00000000000000eb x9 : ffff80009d9fd000
x8 : 0000000000000000 x7 : ffff800080654324 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008ae07bd4
x2 : 0000000000000001 x1 : ffff8000a1cf7d00 x0 : ffff0000cc704600
Call trace:
 0x0 (P)
 pc_clock_gettime+0x148/0x1a8 kernel/time/posix-clock.c:258
 __do_sys_clock_gettime kernel/time/posix-timers.c:1144 [inline]
 __se_sys_clock_gettime kernel/time/posix-timers.c:1134 [inline]
 __arm64_sys_clock_gettime+0x1b4/0x248 kernel/time/posix-timers.c:1134
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x1e0/0x23c 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 ]---