Oops: general protection fault, probably for non-canonical address 0xdffffc000000001b: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000000d8-0x00000000000000df]
CPU: 1 UID: 0 PID: 5976 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:percpu_counter_add_batch+0x3e/0x1d0 lib/percpu_counter.c:98
Code: d4 49 89 f5 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 e6 76 f2 fc 48 89 5c 24 10 4c 8d 73 58 4c 89 f0 48 c1 e8 03 48 89 04 24 <42> 80 3c 38 00 74 08 4c 89 f7 e8 d3 2c 5a fd 49 8b 06 65 8b 28 41
RSP: 0018:ffffc90003b37778 EFLAGS: 00010206
RAX: 000000000000001b RBX: 0000000000000080 RCX: ffff888115b8ba80
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000080
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000766ee4 R12: 0000000000000020
R13: ffffffffffffffff R14: 00000000000000d8 R15: dffffc0000000000
FS:  000055555baf2500(0000) GS:ffff8882a9928000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc74af2e38 CR3: 0000000115cec000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 dst_entries_add include/net/dst_ops.h:59 [inline]
 dst_count_dec net/core/dst.c:162 [inline]
 dst_release+0x126/0x1b0 net/core/dst.c:176
 refdst_drop include/net/dst.h:266 [inline]
 skb_dst_drop include/net/dst.h:278 [inline]
 ____bpf_skb_set_tunnel_key net/core/filter.c:4867 [inline]
 bpf_skb_set_tunnel_key+0x239/0xa30 net/core/filter.c:4835
 bpf_prog_adb554717e5d6596+0x4f/0x5c
 bpf_dispatcher_nop_func include/linux/bpf.h:1402 [inline]
 __bpf_prog_run include/linux/filter.h:723 [inline]
 bpf_prog_run include/linux/filter.h:730 [inline]
 bpf_test_run+0x354/0x830 net/bpf/test_run.c:423
 bpf_prog_test_run_skb+0xe02/0x1ea0 net/bpf/test_run.c:1164
 bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4714
 __sys_bpf+0x643/0x950 kernel/bpf/syscall.c:6236
 __do_sys_bpf kernel/bpf/syscall.c:6331 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6329 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6329
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca1679acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdef1739c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fca16a15fa0 RCX: 00007fca1679acb9
RDX: 0000000000000050 RSI: 0000200000000d80 RDI: 000000000000000a
RBP: 00007fca16808bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fca16a15fac R14: 00007fca16a15fa0 R15: 00007fca16a15fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:percpu_counter_add_batch+0x3e/0x1d0 lib/percpu_counter.c:98
Code: d4 49 89 f5 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 e6 76 f2 fc 48 89 5c 24 10 4c 8d 73 58 4c 89 f0 48 c1 e8 03 48 89 04 24 <42> 80 3c 38 00 74 08 4c 89 f7 e8 d3 2c 5a fd 49 8b 06 65 8b 28 41
RSP: 0018:ffffc90003b37778 EFLAGS: 00010206
RAX: 000000000000001b RBX: 0000000000000080 RCX: ffff888115b8ba80
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000080
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000766ee4 R12: 0000000000000020
R13: ffffffffffffffff R14: 00000000000000d8 R15: dffffc0000000000
FS:  000055555baf2500(0000) GS:ffff8882a9928000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc74af2e38 CR3: 0000000115cec000 CR4: 00000000000006f0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	49 89 f5             	mov    %rsi,%r13
   3:	48 89 fb             	mov    %rdi,%rbx
   6:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
   d:	fc ff df
  10:	e8 e6 76 f2 fc       	call   0xfcf276fb
  15:	48 89 5c 24 10       	mov    %rbx,0x10(%rsp)
  1a:	4c 8d 73 58          	lea    0x58(%rbx),%r14
  1e:	4c 89 f0             	mov    %r14,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
  25:	48 89 04 24          	mov    %rax,(%rsp)
* 29:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 f7             	mov    %r14,%rdi
  33:	e8 d3 2c 5a fd       	call   0xfd5a2d0b
  38:	49 8b 06             	mov    (%r14),%rax
  3b:	65 8b 28             	mov    %gs:(%rax),%ebp
  3e:	41                   	rex.B