RAX: ffffffffffffffda RBX: 00007f3d97a1e6d4 RCX: 0000000000455319
RDX: 0000000000000026 RSI: 0000000020000040 RDI: 0000000000000014
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000015
R13: 00000000000006b6 R14: 00000000006fd1b0 R15: 0000000000000002
unregister_netdevice: waiting for lo to become free. Usage count = 2
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12465 Comm: syz-executor6 Not tainted 4.16.0+ #1
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_node mm/slab.c:3299 [inline]
 kmem_cache_alloc_node+0x272/0x780 mm/slab.c:3642
 __alloc_skb+0x111/0x780 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:987 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 rtmsg_ifinfo_build_skb+0x73/0x190 net/core/rtnetlink.c:3245
 rtmsg_ifinfo_event.part.30+0x45/0xe0 net/core/rtnetlink.c:3281
 rtmsg_ifinfo_event net/core/rtnetlink.c:3292 [inline]
 rtmsg_ifinfo+0x8c/0xa0 net/core/rtnetlink.c:3290
 netdev_state_change+0x13a/0x180 net/core/dev.c:1341
 do_setlink+0x253b/0x4310 net/core/rtnetlink.c:2574
 rtnl_setlink+0x2d6/0x430 net/core/rtnetlink.c:2626
 rtnetlink_rcv_msg+0x466/0xc10 net/core/rtnetlink.c:4646
 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4664
 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
 sock_write_iter+0x35a/0x5a0 net/socket.c:908
 call_write_iter include/linux/fs.h:1784 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x5bc/0x880 fs/read_write.c:487
 vfs_write+0x1f8/0x560 fs/read_write.c:549
 ksys_write+0xf9/0x250 fs/read_write.c:598
 SYSC_write fs/read_write.c:610 [inline]
 SyS_write+0x24/0x30 fs/read_write.c:607
 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x455319
RSP: 002b:00007f3d97a1dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3d97a1e6d4 RCX: 0000000000455319
RDX: 0000000000000026 RSI: 0000000020000040 RDI: 0000000000000014
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000015
R13: 00000000000006b6 R14: 00000000006fd1b0 R15: 0000000000000003
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12488 Comm: syz-executor0 Not tainted 4.16.0+ #1
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
 __napi_alloc_skb+0x19a/0x300 net/core/skbuff.c:482
 napi_alloc_skb include/linux/skbuff.h:2647 [inline]
 napi_get_frags+0x61/0x130 net/core/dev.c:5153
 tun_napi_alloc_frags drivers/net/tun.c:1485 [inline]
 tun_get_user+0x1f05/0x4100 drivers/net/tun.c:1827
 ? perf_trace_lockserialport: VM disconnected.