============================= WARNING: suspicious RCU usage 4.14.154 #0 Not tainted ----------------------------- include/linux/radix-tree.h:238 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 2 locks held by syz-executor.2/1641: #0: (&sb->s_type->i_mutex_key#12){+.+.}, at: [] inode_lock include/linux/fs.h:718 [inline] #0: (&sb->s_type->i_mutex_key#12){+.+.}, at: [] shmem_add_seals+0x15e/0x1060 mm/shmem.c:2810 #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [] spin_lock_irq include/linux/spinlock.h:342 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [] shmem_tag_pins mm/shmem.c:2665 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [] shmem_wait_for_pins mm/shmem.c:2706 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [] shmem_add_seals+0x334/0x1060 mm/shmem.c:2822 stack backtrace: CPU: 1 PID: 1641 Comm: syz-executor.2 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 lockdep_rcu_suspicious+0x153/0x15d kernel/locking/lockdep.c:4665 radix_tree_deref_slot include/linux/radix-tree.h:238 [inline] radix_tree_deref_slot include/linux/radix-tree.h:236 [inline] shmem_tag_pins mm/shmem.c:2667 [inline] shmem_wait_for_pins mm/shmem.c:2706 [inline] shmem_add_seals+0x9e0/0x1060 mm/shmem.c:2822 shmem_fcntl+0xf7/0x130 mm/shmem.c:2857 do_fcntl+0x190/0xe10 fs/fcntl.c:421 SYSC_fcntl fs/fcntl.c:463 [inline] SyS_fcntl+0xd5/0x110 fs/fcntl.c:448 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007f0b299a2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000008 RSI: 0000000000000409 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0b299a36d4 R13: 00000000004c1068 R14: 00000000004d3c60 R15: 00000000ffffffff audit: type=1400 audit(1574173677.265:72): avc: denied { wake_alarm } for pid=1824 comm="syz-executor.2" capability=35 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=capability2 permissive=1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 bridge17: port 1(syz_tun) entered blocking state bridge17: port 1(syz_tun) entered disabled state device syz_tun entered promiscuous mode bridge23: port 1(syz_tun) entered disabled state bridge25: port 1(syz_tun) entered blocking state bridge25: port 1(syz_tun) entered disabled state device syz_tun left promiscuous mode bridge17: port 1(syz_tun) entered disabled state bridge18: port 1(syz_tun) entered blocking state bridge18: port 1(syz_tun) entered disabled state device syz_tun entered promiscuous mode device syz_tun left promiscuous mode bridge18: port 1(syz_tun) entered disabled state bridge19: port 1(syz_tun) entered blocking state IPVS: set_ctl: invalid protocol: 115 0.0.2.74:20002 bridge19: port 1(syz_tun) entered disabled state device syz_tun entered promiscuous mode device syz_tun left promiscuous mode bridge19: port 1(syz_tun) entered disabled state bridge20: port 1(syz_tun) entered blocking state bridge20: port 1(syz_tun) entered disabled state device syz_tun entered promiscuous mode bridge25: port 1(syz_tun) entered disabled state bridge26: port 1(syz_tun) entered blocking state bridge26: port 1(syz_tun) entered disabled state FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 2147 Comm: syz-executor.2 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x287/0x780 mm/slab.c:3640 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1158 [inline] netlink_sendmsg+0x874/0xc60 net/netlink/af_netlink.c:1852 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007f0b299a2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0b299a2c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0b299a36d4 R13: 00000000004c8b8a R14: 00000000004df198 R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 2160 Comm: syz-executor.4 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x287/0x780 mm/slab.c:3640 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1158 [inline] netlink_sendmsg+0x874/0xc60 net/netlink/af_netlink.c:1852 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007fb6637cfc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb6637cfc90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb6637d06d4 R13: 00000000004c8b8a R14: 00000000004df198 R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 2161 Comm: syz-executor.2 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x280/0x770 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1158 [inline] netlink_sendmsg+0x874/0xc60 net/netlink/af_netlink.c:1852 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007f0b299a2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0b299a2c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0b299a36d4 R13: 00000000004c8b8a R14: 00000000004df198 R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 2181 Comm: syz-executor.4 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x280/0x770 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1158 [inline] netlink_sendmsg+0x874/0xc60 net/netlink/af_netlink.c:1852 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007fb6637f0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb6637f0c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb6637f16d4 R13: 00000000004c8b8a R14: 00000000004df198 R15: 0000000000000009 net_ratelimit: 20 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 bridge26: port 1(syz_tun) entered disabled state FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 CPU: 1 PID: 2206 Comm: syz-executor.4 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x47/0x780 mm/slab.c:3550 skb_clone+0x129/0x320 net/core/skbuff.c:1282 __netlink_deliver_tap_skb net/netlink/af_netlink.c:266 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:291 [inline] netlink_deliver_tap+0x681/0x8f0 net/netlink/af_netlink.c:302 netlink_deliver_tap_kernel net/netlink/af_netlink.c:311 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1285 [inline] netlink_unicast+0x4b2/0x640 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007fb6637f0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb6637f0c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb6637f16d4 R13: 00000000004c8b8a R14: 00000000004df198 R15: 0000000000000009 device syz_tun left promiscuous mode bridge20: port 1(syz_tun) entered disabled state bridge23: port 1(syz_tun) entered blocking state bridge23: port 1(syz_tun) entered disabled state device syz_tun entered promiscuous mode protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 2243 Comm: syz-executor.4 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x47/0x780 mm/slab.c:3550 skb_clone+0x129/0x320 net/core/skbuff.c:1282 dev_queue_xmit_nit+0x2d8/0x940 net/core/dev.c:1943 xmit_one net/core/dev.c:3005 [inline] dev_hard_start_xmit+0xa7/0x8b0 net/core/dev.c:3025 __dev_queue_xmit+0x1d95/0x25e0 net/core/dev.c:3525 dev_queue_xmit+0x18/0x20 net/core/dev.c:3558 __netlink_deliver_tap_skb net/netlink/af_netlink.c:273 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:291 [inline] netlink_deliver_tap+0x62a/0x8f0 net/netlink/af_netlink.c:302 netlink_deliver_tap_kernel net/netlink/af_netlink.c:311 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1285 [inline] netlink_unicast+0x4b2/0x640 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007fb6637f0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb6637f0c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb6637f16d4 R13: 00000000004c8b8a R14: 00000000004df198 R15: 0000000000000009 device syz_tun left promiscuous mode protocol 88fb is buggy, dev hsr_slave_0 bridge23: port 1(syz_tun) entered disabled state protocol 88fb is buggy, dev hsr_slave_1 bridge24: port 1(syz_tun) entered blocking state bridge24: port 1(syz_tun) entered disabled state device syz_tun entered promiscuous mode device syz_tun left promiscuous mode FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 2280 Comm: syz-executor.4 Not tainted 4.14.154 #0 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x56/0x780 mm/slab.c:3640 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] nlmsg_new include/net/netlink.h:511 [inline] rtmsg_ifinfo_build_skb+0x72/0x140 net/core/rtnetlink.c:2878 rtmsg_ifinfo_event.part.0+0x35/0xc0 net/core/rtnetlink.c:2912 rtmsg_ifinfo_event net/core/rtnetlink.c:2921 [inline] rtmsg_ifinfo+0x6f/0x90 net/core/rtnetlink.c:2920 __dev_notify_flags+0x1c9/0x240 net/core/dev.c:6830 __dev_set_promiscuity+0x155/0x190 net/core/dev.c:6607 dev_set_promiscuity+0x53/0xc0 net/core/dev.c:6627 nbp_delete_promisc net/bridge/br_if.c:190 [inline] del_nbp+0x10b/0x8b0 net/bridge/br_if.c:268 br_del_if+0xdf/0x470 net/bridge/br_if.c:632 br_del_slave+0x21/0x30 net/bridge/br_device.c:335 do_set_master+0xd5/0x200 net/core/rtnetlink.c:1926 do_setlink+0x99f/0x2d50 net/core/rtnetlink.c:2077 rtnl_newlink+0x11a7/0x1700 net/core/rtnetlink.c:2630 rtnetlink_rcv_msg+0x3eb/0xb70 net/core/rtnetlink.c:4285 protocol 88fb is buggy, dev hsr_slave_0 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 protocol 88fb is buggy, dev hsr_slave_1 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4297 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x45d/0x640 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007fb6637f0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb6637f0c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb6637f16d4 R13: 00000000004c8b8a R14: 00000000004df198 R15: 0000000000000009 bridge24: port 1(syz_tun) entered disabled state