Unable to handle kernel paging request at virtual address ffff8000379d04ea
Mem abort info:
  Exception class = DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
Data abort info:
  ISV = 0, ISS = 0x00000033
  CM = 0, WnR = 0
swapper pgtable: 4k pages, 48-bit VAs, pgd = ffff20000eeb2000
[ffff8000379d04ea] *pgd=000000007eff7003, *pud=000000007eff6003, *pmd=00f8000077800711
Internal error: Oops: 96000021 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 21137 Comm: syz-executor1 Not tainted 4.14.0-rc2-00001-gd7ad33d #115
Hardware name: linux,dummy-virt (DT)
task: ffff80003a211a80 task.stack: ffff800039338000
PC is at __ll_sc_atomic_add+0x4/0x18 arch/arm64/include/asm/atomic_ll_sc.h:113
LR is at atomic_add arch/arm64/include/asm/atomic_lse.h:45 [inline]
LR is at __skb_clone+0x4a8/0x6c0 net/core/skbuff.c:873
pc : [<ffff20000a30ce44>] lr : [<ffff200009dffb58>] pstate: 10000145
sp : ffff80003efbd6e0
x29: ffff80003efbd6e0 x28: 0000600034170000 
x27: ffff20000ae55360 x26: ffff80001375c988 
x25: ffff8000379d0346 x24: ffff80001375c990 
x23: ffff20000ae60000 x22: ffff80001357fc5c 
x21: 1ffff00007df7ae8 x20: ffff80001375c8c0 
x19: ffff80001357fb80 x18: ffff20000da58140 
x17: 0000000000000001 x16: 0000000000000000 
x15: ffff20000e1485a0 x14: 1ffff0000744248b 
x13: 1ffff0000744248c x12: ffffffffffffffff 
x11: 1ffff000026aff87 x10: ffff1000026aff87 
x9 : dfff200000000000 x8 : 0082009000a40008 
x7 : 0000000000000000 x6 : ffff80001357fc40 
x5 : ffff1000026aff88 x4 : 0000000000000000 
x3 : 1ffff000026aff8b x2 : ffff8000379d04c6 
x1 : ffff8000379d04ea x0 : 0000000000000001 
Process syz-executor1 (pid: 21137, stack limit = 0xffff800039338000)
Call trace:
Exception stack(0xffff80003efbd5a0 to 0xffff80003efbd6e0)
d5a0: 0000000000000001 ffff8000379d04ea ffff8000379d04c6 1ffff000026aff8b
d5c0: 0000000000000000 ffff1000026aff88 ffff80001357fc40 0000000000000000
d5e0: 0082009000a40008 dfff200000000000 ffff1000026aff87 1ffff000026aff87
d600: ffffffffffffffff 1ffff0000744248c 1ffff0000744248b ffff20000e1485a0
d620: 0000000000000000 0000000000000001 ffff20000da58140 ffff80001357fb80
d640: ffff80001375c8c0 1ffff00007df7ae8 ffff80001357fc5c ffff20000ae60000
d660: ffff80001375c990 ffff8000379d0346 ffff80001375c988 ffff20000ae55360
d680: 0000600034170000 ffff80003efbd6e0 ffff200009dffb58 ffff80003efbd6e0
d6a0: ffff20000a30ce44 0000000010000145 ffff80001357fb80 ffff80001375c8c0
d6c0: 0001000000000000 ffff80001375c94e ffff80003efbd6e0 ffff20000a30ce44
[<ffff20000a30ce44>] __ll_sc_atomic_add+0x4/0x18 arch/arm64/include/asm/atomic_ll_sc.h:113
[<ffff200009e1009c>] skb_clone+0x1c4/0x3b0 net/core/skbuff.c:1286
[<ffff200009f2ff80>] ip_expire+0x4e8/0x7c0 net/ipv4/ip_fragment.c:239
[<ffff2000082f8980>] call_timer_fn+0x1b8/0x430 kernel/time/timer.c:1281
[<ffff2000082f8dcc>] expire_timers+0x1d4/0x320 kernel/time/timer.c:1320
[<ffff2000082f912c>] __run_timers kernel/time/timer.c:1620 [inline]
[<ffff2000082f912c>] run_timer_softirq+0x214/0x5f0 kernel/time/timer.c:1646
[<ffff2000080826c0>] __do_softirq+0x350/0xc0c kernel/softirq.c:284
[<ffff200008170af4>] do_softirq_own_stack include/linux/interrupt.h:498 [inline]
[<ffff200008170af4>] invoke_softirq kernel/softirq.c:371 [inline]
[<ffff200008170af4>] irq_exit+0x1dc/0x2f8 kernel/softirq.c:405
[<ffff2000082a95bc>] __handle_domain_irq+0xdc/0x230 kernel/irq/irqdesc.c:647
[<ffff2000080820ac>] handle_domain_irq include/linux/irqdesc.h:175 [inline]
[<ffff2000080820ac>] gic_handle_irq+0x6c/0xe0 drivers/irqchip/irq-gic.c:367
Exception stack(0xffff80003933bbc0 to 0xffff80003933bd00)
bbc0: ffff80003a21234c 0000000000000007 0000000000000000 1ffff00007442469
bbe0: dfff200000000000 ffff10000726771c dfff200000000000 0000000000000000
bc00: ffff80003a212350 1ffff00007442469 ffff80003a212348 ffff80003a212368
bc20: 1ffff0000744246c 1ffff0000744246e 1ffff0000744246d ffff20000e1485a0
bc40: 0000000000000000 0000000000000001 ffff20000da58140 ffff80003a211a80
bc60: 0000000000000140 ffff800013b72910 0000000000000000 0000000000000001
bc80: 0000ffffc97b5840 0000000000000124 0000000000000071 ffff20000a377000
bca0: ffff80003a211a80 ffff80003933bd10 ffff20000827bd10 ffff80003933bd00
bcc0: ffff20000827bd44 0000000010000145 ffff80003933bd10 ffff2000081e1678
bce0: 0001000000000000 ffff20000a3c9c00 ffff80003933bd10 ffff20000827bd44
[<ffff200008084034>] el1_irq+0xb4/0x12c arch/arm64/kernel/entry.S:569
[<ffff20000827bd44>] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:81 [inline]
[<ffff20000827bd44>] lock_acquire+0xec/0x1c0 kernel/locking/lockdep.c:4005
[<ffff200008531dc4>] __might_fault+0x12c/0x220 mm/memory.c:4502
[<ffff2000082f4d88>] _copy_to_user include/linux/uaccess.h:130 [inline]
[<ffff2000082f4d88>] copy_to_user include/linux/uaccess.h:154 [inline]
[<ffff2000082f4d88>] put_timespec64+0xc8/0x1b8 kernel/time/time.c:918
[<ffff20000831a8ac>] SYSC_clock_gettime kernel/time/posix-timers.c:1063 [inline]
[<ffff20000831a8ac>] SyS_clock_gettime+0x144/0x178 kernel/time/posix-timers.c:1051
Exception stack(0xffff80003933bec0 to 0xffff80003933c000)
bec0: 0000000000000001 0000ffffc97b5840 0000ffffc97b5988 0000ffffc97b5940
bee0: 00000000004d2ec0 000000000000002d 0dc66fef2fd12212 0dc66fef2fd12212
bf00: 0000000000000071 e46546a8bba98d43 9a7c3168cba61200 616981b8c14b12b0
bf20: ef2fd1221247e56e 103c2634240dc66f 0000000000000008 0000000000000001
bf40: 0000000000000000 0000000000826000 0000000000000000 000000000000000b
bf60: 0000000000000006 0000ffffc97b5940 000000000000037d 0000ffffc97b5930
bf80: 00000000000f4240 00000000004c0008 0000ffffc97b5b30 0000000040000001
bfa0: 000000000004935d 0000ffffc97b5830 0000000000400f28 0000ffffc97b5830
bfc0: 000000000042e744 0000000000000000 0000000000000001 0000000000000071
bfe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[<ffff2000080846f0>] el0_svc_naked+0x24/0x28
Code: 978b7cfd 17ffff91 00000000 f9800031 (885f7c31) 
---[ end trace 12bdc649a111cd4a ]---