------------[ cut here ]------------ kernel BUG at net/ipv6/route.c:1262! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 19735 Comm: syz-executor.5 Not tainted 5.0.0-rc6+ #70 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1262 [inline] RIP: 0010:ip6_pol_route+0x761/0xf00 net/ipv6/route.c:1895 Code: 48 03 1c c5 60 60 6e 88 be 08 00 00 00 48 89 df e8 54 d2 9b fb 31 c0 f0 4c 0f b1 33 48 85 c0 0f 84 ee fb ff ff e8 3f fa 64 fb <0f> 0b e8 38 fa 64 fb e8 d3 32 53 fb 31 ff 89 c6 88 85 28 ff ff ff RSP: 0018:ffff88808b4c7090 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffffe8ffffd73fc8 RCX: ffffc90014606000 RDX: 0000000000000aa9 RSI: ffffffff860ae6e1 RDI: ffffe8ffffd73fc8 RBP: ffff88808b4c7178 R08: 1ffffd1ffffae7f9 R09: fffff91ffffae7fa R10: fffff91ffffae7f9 R11: ffffe8ffffd73fcf R12: ffff8880a5bdae80 R13: 0000000000000001 R14: ffff8880a841c480 R15: ffff88808b4c7150 FS: 00007f210afa3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d324000 CR3: 000000008935f000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_pol_route_input+0x65/0x80 net/ipv6/route.c:1911 fib6_rule_lookup+0x128/0x560 net/ipv6/fib6_rules.c:118 ip6_route_input_lookup+0xb7/0xd0 net/ipv6/route.c:1923 ip6_route_input+0x5e6/0x9e0 net/ipv6/route.c:2058 ip6_rcv_finish_core.isra.0+0x174/0x590 net/ipv6/ip6_input.c:63 kobject: 'loop4' (0000000093e0fc21): kobject_uevent_env ip6_rcv_finish+0x17d/0x320 net/ipv6/ip6_input.c:74 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 kobject: 'loop4' (0000000093e0fc21): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000fcc25e54): kobject_uevent_env __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 kobject: 'loop3' (00000000fcc25e54): fill_kobj_path: path = '/devices/virtual/block/loop3' __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 kobject: 'loop4' (0000000093e0fc21): kobject_uevent_env netif_receive_skb_internal+0x117/0x660 net/core/dev.c:5186 netif_receive_skb+0x6e/0x5a0 net/core/dev.c:5261 kobject: 'loop4' (0000000093e0fc21): fill_kobj_path: path = '/devices/virtual/block/loop4' tun_rx_batched.isra.0+0x4f7/0x840 drivers/net/tun.c:1562 kobject: 'loop3' (00000000fcc25e54): kobject_uevent_env kobject: 'loop3' (00000000fcc25e54): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000093e0fc21): kobject_uevent_env kobject: 'loop4' (0000000093e0fc21): fill_kobj_path: path = '/devices/virtual/block/loop4' tun_get_user+0x2588/0x38d0 drivers/net/tun.c:1991 kobject: 'loop0' (00000000e3673e02): kobject_uevent_env kobject: 'loop0' (00000000e3673e02): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000093e0fc21): kobject_uevent_env kobject: 'loop4' (0000000093e0fc21): fill_kobj_path: path = '/devices/virtual/block/loop4' tun_chr_write_iter+0xbd/0x160 drivers/net/tun.c:2019 call_write_iter include/linux/fs.h:1863 [inline] do_iter_readv_writev+0x5e0/0x8e0 fs/read_write.c:680 kobject: 'loop3' (00000000fcc25e54): kobject_uevent_env 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 kobject: 'loop3' (00000000fcc25e54): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000d04604f9): kobject_uevent_env __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: 0033:0x457ce1 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:00007f210afa2ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 0000000000000140 RCX: 0000000000457ce1 RDX: 0000000000000001 RSI: 00007f210afa2bf0 RDI: 00000000000000f0 RBP: 0000000020000640 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f210afa36d4 R13: 00000000004c6477 R14: 00000000004db8c0 R15: 00000000ffffffff Modules linked in: ---[ end trace ae88e064cb2755a6 ]--- kobject: 'loop2' (00000000d04604f9): fill_kobj_path: path = '/devices/virtual/block/loop2' RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1262 [inline] RIP: 0010:ip6_pol_route+0x761/0xf00 net/ipv6/route.c:1895 Code: 48 03 1c c5 60 60 6e 88 be 08 00 00 00 48 89 df e8 54 d2 9b fb 31 c0 f0 4c 0f b1 33 48 85 c0 0f 84 ee fb ff ff e8 3f fa 64 fb <0f> 0b e8 38 fa 64 fb e8 d3 32 53 fb 31 ff 89 c6 88 85 28 ff ff ff RSP: 0018:ffff88808b4c7090 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffffe8ffffd73fc8 RCX: ffffc90014606000 RDX: 0000000000000aa9 RSI: ffffffff860ae6e1 RDI: ffffe8ffffd73fc8 RBP: ffff88808b4c7178 R08: 1ffffd1ffffae7f9 R09: fffff91ffffae7fa R10: fffff91ffffae7f9 R11: ffffe8ffffd73fcf R12: ffff8880a5bdae80 kobject: 'loop1' (000000004a5570d6): kobject_uevent_env R13: 0000000000000001 R14: ffff8880a841c480 R15: ffff88808b4c7150 FS: 00007f210afa3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 kobject: 'loop1' (000000004a5570d6): fill_kobj_path: path = '/devices/virtual/block/loop1' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d324000 CR3: 000000008935f000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop0' (00000000e3673e02): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'loop0' (00000000e3673e02): fill_kobj_path: path = '/devices/virtual/block/loop0'