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: 29111 Comm: syz-executor.2 Not tainted 5.0.0+ #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20 arch/x86/lib/retpoline.S:32
Code: ff 48 8d 0c ca e9 ee fd cc ff bb f2 ff ff ff 45 30 ff e9 94 02 cd ff 90 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
RSP: 0018:ffff8880986bf5c8 EFLAGS: 00010246
RAX: 81bfad0cffffffff RBX: ffff88806410e42c RCX: ffffc90013804000
RDX: 1ffff1100c821c8a RSI: ffffffff860ea638 RDI: ffff8880978d1700
RBP: ffff8880986bf600 R08: ffff8880787785c0 R09: 0000000000000004
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: ffff8880978d1700
R13: 0000000000000000 R14: ffff8880978d1758 R15: 0000000000000000
FS:  00007f3238715700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 000000008cda8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 NF_HOOK include/linux/netfilter.h:289 [inline]
 NF_HOOK include/linux/netfilter.h:283 [inline]
 ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:272
 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4971
 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5081
 netif_receive_skb_internal+0x117/0x660 net/core/dev.c:5184
 napi_frags_finish net/core/dev.c:5751 [inline]
 napi_gro_frags+0xade/0xd10 net/core/dev.c:5825
 tun_get_user+0x2f24/0x3fb0 drivers/net/tun.c:1980
 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2026
 call_write_iter include/linux/fs.h:1863 [inline]
 do_iter_readv_writev+0x5e1/0x8e0 fs/read_write.c:680
 do_iter_write fs/read_write.c:956 [inline]
 do_iter_write+0x184/0x610 fs/read_write.c:937
 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1001
 do_writev+0xf6/0x290 fs/read_write.c:1036
 __do_sys_writev fs/read_write.c:1109 [inline]
 __se_sys_writev fs/read_write.c:1106 [inline]
 __x64_sys_writev+0x75/0xb0 fs/read_write.c:1106
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4580c1
Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b9 fb ff c3 48 83 ec 08 e8 1a 2d 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 63 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f3238714ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0000000000000083 RCX: 00000000004580c1
RDX: 0000000000000001 RSI: 00007f3238714c00 RDI: 00000000000000f0
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f32387156d4
R13: 00000000004c6848 R14: 00000000004dbd70 R15: 00000000ffffffff
Modules linked in:
---[ end trace c847bbda28c3d74c ]---
RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20 arch/x86/lib/retpoline.S:32
Code: ff 48 8d 0c ca e9 ee fd cc ff bb f2 ff ff ff 45 30 ff e9 94 02 cd ff 90 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
RSP: 0018:ffff8880986bf5c8 EFLAGS: 00010246
RAX: 81bfad0cffffffff RBX: ffff88806410e42c RCX: ffffc90013804000
RDX: 1ffff1100c821c8a RSI: ffffffff860ea638 RDI: ffff8880978d1700
RBP: ffff8880986bf600 R08: ffff8880787785c0 R09: 0000000000000004
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: ffff8880978d1700
R13: 0000000000000000 R14: ffff8880978d1758 R15: 0000000000000000
FS:  00007f3238715700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 000000008cda8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400