__dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail+0x87b/0xab0 lib/fault-inject.c:149
kobject_add_internal failed for Ò¹™Ï… (error: -12 parent: net)
 should_failslab+0x279/0x2a0 mm/failslab.c:32
 slab_pre_alloc_hook mm/slab.h:422 [inline]
 slab_alloc_node mm/slub.c:2663 [inline]
 slab_alloc mm/slub.c:2745 [inline]
 __kmalloc+0xc2/0x350 mm/slub.c:3785
WARNING: CPU: 0 PID: 8702 at lib/kobject.c:242 kobject_add_internal+0x10fc/0x1700 lib/kobject.c:240
Kernel panic - not syncing: panic_on_warn set ...

 kmalloc include/linux/slab.h:517 [inline]
 snd_pcm_oss_change_params+0x2d7/0x68c0 sound/core/oss/pcm_oss.c:848
 snd_pcm_oss_make_ready sound/core/oss/pcm_oss.c:1127 [inline]
 snd_pcm_oss_read1 sound/core/oss/pcm_oss.c:1442 [inline]
 snd_pcm_oss_read+0x35a/0x1aa0 sound/core/oss/pcm_oss.c:2638
 __vfs_read+0x1a5/0x9b0 fs/read_write.c:411
 vfs_read+0x36c/0x6c0 fs/read_write.c:447
 SYSC_read+0x172/0x360 fs/read_write.c:573
 SyS_read+0x55/0x80 fs/read_write.c:566
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x455979
RSP: 002b:00007f572e458c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f572e4596d4 RCX: 0000000000455979
RDX: 000000000000006e RSI: 0000000020000240 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014
R13: 00000000000004d5 R14: 00000000006fb498 R15: 0000000000000002
CPU: 0 PID: 8702 Comm: syz-executor2 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 panic+0x39d/0x940 kernel/panic.c:183
 __warn+0x40f/0x580 kernel/panic.c:547
 report_bug+0x72a/0x880 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0x1aa/0x600 arch/x86/kernel/traps.c:297
 do_invalid_op+0x46/0x50 arch/x86/kernel/traps.c:316
TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:986
RIP: 0010:kobject_add_internal+0x10fc/0x1700 lib/kobject.c:240
RSP: 0018:ffff8801ae4bf588 EFLAGS: 00010282
RAX: 000000000000003f RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffc90002ba2000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8801ae4bf620 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000fffffff4 R14: ffffffff8a8f750c R15: ffff88014dd74418
 kobject_add_varg lib/kobject.c:364 [inline]
 kobject_add+0x413/0x480 lib/kobject.c:409
 device_add+0x8dc/0x2cb0 drivers/base/core.c:1787
 netdev_register_kobject+0x283/0x6d0 net/core/net-sysfs.c:1604
 register_netdevice+0x18a7/0x26d0 net/core/dev.c:7900
 tun_set_iff drivers/net/tun.c:2596 [inline]
 __tun_chr_ioctl+0x506f/0x6610 drivers/net/tun.c:2821
 tun_chr_ioctl+0x9c/0xb0 drivers/net/tun.c:3078
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xaf0/0x2440 fs/ioctl.c:686
 SYSC_ioctl+0x1d2/0x260 fs/ioctl.c:701
 SyS_ioctl+0x54/0x80 fs/ioctl.c:692
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x455979
RSP: 002b:00007f2aa83fac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2aa83fb6d4 RCX: 0000000000455979
RDX: 00000000200000c0 RSI: 00000000400454ca RDI: 0000000000000014
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000015
R13: 000000000000036f R14: 00000000006f9308 R15: 000000000000000d
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..