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: 16564 Comm: syz-executor.3 Not tainted 5.2.0-rc2+ #18
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: 8b 30 53 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 5a 30 53 fb 44 89 e8 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffff8880604cf5d8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88808a49d544 RCX: ffffc90012a9f000
RDX: 1ffff11011493aad RSI: ffffffff861d7535 RDI: ffff8880980c6200
RBP: ffff8880604cf600 R08: ffff8880610c8200 R09: 0000000000000004
R10: ffffed1015d06be7 R11: ffff8880ae835f3b R12: ffff8880980c6200
R13: 0000000000000000 R14: ffff8880980c6258 R15: 0000000000000000
FS:  00007fe20968b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e628000 CR3: 000000009eabb000 CR4: 00000000001406f0
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]
 do_iter_readv_writev+0x5f8/0x8f0 fs/read_write.c:693
 do_iter_write fs/read_write.c:970 [inline]
 do_iter_write+0x184/0x610 fs/read_write.c:951
 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1015
 do_writev+0x15b/0x330 fs/read_write.c:1058
 __do_sys_writev fs/read_write.c:1131 [inline]
 __se_sys_writev fs/read_write.c:1128 [inline]
 __x64_sys_writev+0x75/0xb0 fs/read_write.c:1128
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459131
Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 b9 fb ff c3 48 83 ec 08 e8 fa 2c 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 43 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fe20968aba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 000000000000004a RCX: 0000000000459131
RDX: 0000000000000001 RSI: 00007fe20968ac00 RDI: 00000000000000f0
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000293 R12: 00007fe20968b6d4
R13: 00000000004c7d59 R14: 00000000004de200 R15: 00000000ffffffff
Modules linked in:
---[ end trace b4d7fbcd8b3ec605 ]---
RIP: 0010:dst_input include/net/dst.h:439 [inline]
RIP: 0010:ip6_rcv_finish+0x1db/0x310 net/ipv6/ip6_input.c:80
Code: 8b 30 53 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 5a 30 53 fb 44 89 e8 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffff8880604cf5d8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88808a49d544 RCX: ffffc90012a9f000
RDX: 1ffff11011493aad RSI: ffffffff861d7535 RDI: ffff8880980c6200
RBP: ffff8880604cf600 R08: ffff8880610c8200 R09: 0000000000000004
R10: ffffed1015d06be7 R11: ffff8880ae835f3b R12: ffff8880980c6200
R13: 0000000000000000 R14: ffff8880980c6258 R15: 0000000000000000
FS:  00007fe20968b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e628000 CR3: 000000009eabb000 CR4: 00000000001406f0