kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 21974 Comm: syz-executor.4 Not tainted 5.2.0-rc2+ #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dst_input include/net/dst.h:439 [inline]
RIP: 0010:ip6_rcv_finish+0x1db/0x310 net/ipv6/ip6_input.c:80
Code: eb 3c 54 fb 48 83 e3 fe 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 28 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 4c 89 e7 <ff> 53 28 41 89 c5 e8 ba 3c 54 fb 44 89 e8 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffff8880992b7740 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880a00dad3c RCX: ffffc90006549000
RDX: 1ffff1101401b5ac RSI: ffffffff861c68d5 RDI: ffff88808f5af0c0
RBP: ffff8880992b7768 R08: ffff888063bee080 R09: ffffed1015d06be8
R10: ffffed1015d06be7 R11: ffff8880ae835f3b R12: ffff88808f5af0c0
R13: 0000000000000001 R14: ffff88808f5af118 R15: 0000000000000000
FS:  00007fd219850700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37d8bab4a0 CR3: 000000008fb75000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:276
 __netif_receive_skb_one_core+0x113/0x1a0 net/core/dev.c:4985
 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5099
 netif_receive_skb_internal+0x108/0x390 net/core/dev.c:5189
 napi_frags_finish net/core/dev.c:5740 [inline]
 napi_gro_frags+0xad9/0xd10 net/core/dev.c:5814
 tun_get_user+0x2f3c/0x3ff0 drivers/net/tun.c:1991
 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2037
 call_write_iter include/linux/fs.h:1872 [inline]
 new_sync_write+0x4d3/0x770 fs/read_write.c:483
 __vfs_write+0xe1/0x110 fs/read_write.c:496
 vfs_write+0x20c/0x580 fs/read_write.c:558
 ksys_write+0x14f/0x290 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:620
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd21984fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 0000000000000088 RSI: 0000000020001180 RDI: 0000000000000009
RBP: 000000000075c060 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd2198506d4
R13: 00000000004c913d R14: 00000000004e00c8 R15: 00000000ffffffff
Modules linked in:
---[ end trace 28cf5efa628b8412 ]---
RIP: 0010:dst_input include/net/dst.h:439 [inline]
RIP: 0010:ip6_rcv_finish+0x1db/0x310 net/ipv6/ip6_input.c:80
Code: eb 3c 54 fb 48 83 e3 fe 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 28 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 4c 89 e7 <ff> 53 28 41 89 c5 e8 ba 3c 54 fb 44 89 e8 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffff8880992b7740 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880a00dad3c RCX: ffffc90006549000
RDX: 1ffff1101401b5ac RSI: ffffffff861c68d5 RDI: ffff88808f5af0c0
RBP: ffff8880992b7768 R08: ffff888063bee080 R09: ffffed1015d06be8
R10: ffffed1015d06be7 R11: ffff8880ae835f3b R12: ffff88808f5af0c0
R13: 0000000000000001 R14: ffff88808f5af118 R15: 0000000000000000
FS:  00007fd219850700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37d8bab4a0 CR3: 000000008fb75000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600