TCP: request_sock_TCP: Possible SYN flooding on port 20000. Sending cookies. Check SNMP counters. device lo entered promiscuous mode ------------[ cut here ]------------ ieee80211 _D+KУpd m+!Y c.LP 0~1 .=a>",A Wu7$N D(N$ Ԯќ6!!7z+N3O: device/subsystem name too long WARNING: CPU: 1 PID: 21428 at drivers/base/core.c:2893 create_syslog_header drivers/base/core.c:2893 [inline] WARNING: CPU: 1 PID: 21428 at drivers/base/core.c:2893 dev_vprintk_emit+0x3bc/0x540 drivers/base/core.c:2903 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 21428 Comm: syz-executor6 Not tainted 4.17.0-rc6+ #61 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 panic+0x22f/0x4de kernel/panic.c:184 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992 RIP: 0010:create_syslog_header drivers/base/core.c:2893 [inline] RIP: 0010:dev_vprintk_emit+0x3bc/0x540 drivers/base/core.c:2903 RSP: 0018:ffff8801950b6c90 EFLAGS: 00010282 RAX: 00000000000000a8 RBX: ffff8801b4790940 RCX: ffffc900076fc000 RDX: 000000000001e2a0 RSI: ffffffff8160f2c1 RDI: 0000000000000001 RBP: ffff8801950b6dc8 R08: ffff8801926fa640 R09: 0000000000000006 R10: ffff8801926fa640 R11: 0000000000000000 R12: ffff8801d78ff540 R13: 1ffff10032a16d98 R14: ffff8801950b6ce0 R15: ffffffff885dcbc0 dev_printk_emit+0xa5/0xd0 drivers/base/core.c:2916 __dev_printk+0xa7/0x110 drivers/base/core.c:2928 dev_printk+0xfb/0x150 drivers/base/core.c:2945 ieee80211_init_rate_ctrl_alg+0x302/0x4f0 net/mac80211/rate.c:978 ieee80211_register_hw+0x16e9/0x35d0 net/mac80211/main.c:1103 mac80211_hwsim_new_radio+0x1da2/0x3410 drivers/net/wireless/mac80211_hwsim.c:2773 hwsim_new_radio_nl+0x7b8/0xa60 drivers/net/wireless/mac80211_hwsim.c:3248 genl_family_rcv_msg+0x889/0x1120 net/netlink/genetlink.c:599 genl_rcv_msg+0xc6/0x170 net/netlink/genetlink.c:624 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448 genl_rcv+0x28/0x40 net/netlink/genetlink.c:635 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x805/0x940 net/socket.c:2117 __sys_sendmsg+0x115/0x270 net/socket.c:2155 __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007fddc71d0c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fddc71d16d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000005a2 R14: 00000000006fc7d0 R15: 0000000000000000 CPU: 0 PID: 21422 Comm: syz-executor7 Not tainted 4.17.0-rc6+ #61 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3552 __build_skb+0xa3/0x410 net/core/skbuff.c:281 build_skb+0x6f/0x2e0 net/core/skbuff.c:312 tun_build_skb.isra.50+0x878/0x2040 drivers/net/tun.c:1695 tun_get_user+0xc47/0x4290 drivers/net/tun.c:1801 tun_chr_write_iter+0xb9/0x154 drivers/net/tun.c:1990 call_write_iter include/linux/fs.h:1784 [inline] do_iter_readv_writev+0x859/0xa50 fs/read_write.c:680 do_iter_write+0x185/0x5f0 fs/read_write.c:959 vfs_writev+0x1c7/0x330 fs/read_write.c:1004 do_writev+0x112/0x2f0 fs/read_write.c:1039 __do_sys_writev fs/read_write.c:1112 [inline] __se_sys_writev fs/read_write.c:1109 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1109 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4558c1 RSP: 002b:00007f318c347ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000000004a RCX: 00000000004558c1 RDX: 0000000000000001 RSI: 00007f318c347bf0 RDI: 00000000000000fc RBP: 0000000020000100 R08: 00000000000000fc R09: 0000000000000000 R10: 000000000000004a R11: 0000000000000293 R12: 0000000000000015 R13: 0000000000000712 R14: 00000000006fea50 R15: 0000000000000001 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..