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: 7537 Comm: syz-executor.2 Not tainted 5.4.0-rc1+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:NF_HOOK_LIST include/linux/netfilter.h:331 [inline] RIP: 0010:ip6_sublist_rcv+0x4a8/0x7c0 net/ipv6/ip6_input.c:292 Code: 7e fb 5a 85 c0 0f 85 02 01 00 00 48 8b 85 08 ff ff ff 48 8d b8 10 0f 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fb 02 00 00 48 8b 85 08 ff ff ff 48 8b 98 10 0f RSP: 0018:ffff888079a872f0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880872a08c0 RCX: ffffffff81584a34 RDX: 00000000000001e2 RSI: 0000000000000004 RDI: 0000000000000f10 RBP: ffff888079a87418 R08: ffffed1015d46b75 R09: ffffed1015d46b75 R10: ffffed1015d46b74 R11: ffff8880aea35ba3 R12: ffff888079a873f0 R13: 0000000000000000 R14: ffff8880980da1c0 R15: dffffc0000000000 FS: 00007f2949586700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000075c091 CR3: 0000000092f3c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ipv6_list_rcv+0x2e1/0x4b0 net/ipv6/ip6_input.c:328 __netif_receive_skb_list_ptype net/core/dev.c:5279 [inline] __netif_receive_skb_list_core+0x4bd/0x930 net/core/dev.c:5327 __netif_receive_skb_list net/core/dev.c:5379 [inline] netif_receive_skb_list_internal+0x61b/0xd70 net/core/dev.c:5474 gro_normal_list.part.137+0x19/0xb0 net/core/dev.c:5987 gro_normal_list net/core/dev.c:5985 [inline] gro_normal_one net/core/dev.c:5999 [inline] napi_frags_finish net/core/dev.c:6012 [inline] napi_gro_frags+0x834/0xc70 net/core/dev.c:6085 tun_get_user+0x2432/0x3760 drivers/net/tun.c:1976 tun_chr_write_iter+0xaf/0x150 drivers/net/tun.c:2022 call_write_iter include/linux/fs.h:1895 [inline] do_iter_readv_writev+0x526/0xa70 fs/read_write.c:693 do_iter_write+0x12a/0x510 fs/read_write.c:970 vfs_writev+0x16d/0x2d0 fs/read_write.c:1015 do_writev+0x112/0x2e0 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+0x70/0xb0 fs/read_write.c:1128 do_syscall_64+0xca/0x5d0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459db1 Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b7 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:00007f2949585ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000000003e RCX: 0000000000459db1 RDX: 0000000000000001 RSI: 00007f2949585c00 RDI: 00000000000000f0 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f29495866d4 R13: 00000000004c922e R14: 00000000004e0860 R15: 00000000ffffffff Modules linked in: ---[ end trace 06b4c0ff8268147e ]--- RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:NF_HOOK_LIST include/linux/netfilter.h:331 [inline] RIP: 0010:ip6_sublist_rcv+0x4a8/0x7c0 net/ipv6/ip6_input.c:292 Code: 7e fb 5a 85 c0 0f 85 02 01 00 00 48 8b 85 08 ff ff ff 48 8d b8 10 0f 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fb 02 00 00 48 8b 85 08 ff ff ff 48 8b 98 10 0f RSP: 0018:ffff888079a872f0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880872a08c0 RCX: ffffffff81584a34 RDX: 00000000000001e2 RSI: 0000000000000004 RDI: 0000000000000f10 RBP: ffff888079a87418 R08: ffffed1015d46b75 R09: ffffed1015d46b75 R10: ffffed1015d46b74 R11: ffff8880aea35ba3 R12: ffff888079a873f0 R13: 0000000000000000 R14: ffff8880980da1c0 R15: dffffc0000000000 FS: 00007f2949586700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000075c091 CR3: 0000000092f3c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400