================================ WARNING: inconsistent lock state 4.19.143-syzkaller #0 Not tainted -------------------------------- inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. syz-executor.1/19033 [HC0[0]:SC0[0]:HE1:SE1] takes: 00000000c2f9e15b (slock-AF_BLUETOOTH-BTPROTO_SCO){+.?.}, at: spin_lock include/linux/spinlock.h:329 [inline] 00000000c2f9e15b (slock-AF_BLUETOOTH-BTPROTO_SCO){+.?.}, at: sco_conn_del+0xb0/0x220 net/bluetooth/sco.c:175 {IN-SOFTIRQ-W} state was registered at: loop5: p1 p2 < > p3 p4 < p5 > __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] sco_sock_timeout+0x22/0x190 net/bluetooth/sco.c:82 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 loop5: partition table partially beyond EOD, truncated expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1716 __do_softirq+0x26c/0x9a0 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 loop5: p1 size 11290111 extends beyond EOD, truncated exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 loop5: p3 start 4276224225 is beyond EOD, truncated arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 hrtimer_start_expires include/linux/hrtimer.h:412 [inline] do_nanosleep+0x1fe/0x6c0 kernel/time/hrtimer.c:1688 hrtimer_nanosleep+0x24d/0x500 kernel/time/hrtimer.c:1745 __do_sys_nanosleep kernel/time/hrtimer.c:1779 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1766 [inline] __x64_sys_nanosleep+0x19d/0x220 kernel/time/hrtimer.c:1766 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe irq event stamp: 2765 loop5: p5 size 11290111 extends beyond EOD, truncated hardirqs last enabled at (2765): [] kfree+0x110/0x210 mm/slab.c:3823 hardirqs last disabled at (2764): [] kfree+0x6f/0x210 mm/slab.c:3816 softirqs last enabled at (2670): [] __do_softirq+0x69a/0x9a0 kernel/softirq.c:318 softirqs last disabled at (2571): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2571): [] irq_exit+0x215/0x260 kernel/softirq.c:412 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(slock-AF_BLUETOOTH-BTPROTO_SCO); loop5: p1 p2 < > p3 p4 < p5 > lock(slock-AF_BLUETOOTH-BTPROTO_SCO); *** DEADLOCK *** 3 locks held by syz-executor.1/19033: #0: 00000000be8e43a8 (&hdev->req_lock){+.+.}, at: hci_dev_do_close+0x177/0xe70 net/bluetooth/hci_core.c:1616 loop5: partition table partially beyond EOD, truncated #1: 00000000a3581fe9 (&hdev->lock){+.+.}, at: hci_dev_do_close+0x2c1/0xe70 net/bluetooth/hci_core.c:1653 #2: 0000000008fead5e (hci_cb_list_lock){+.+.}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1258 [inline] #2: 0000000008fead5e (hci_cb_list_lock){+.+.}, at: hci_conn_hash_flush+0xc7/0x220 net/bluetooth/hci_conn.c:1495 stack backtrace: CPU: 0 PID: 19033 Comm: syz-executor.1 Not tainted 4.19.143-syzkaller #0 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+0x1fc/0x2fe lib/dump_stack.c:118 loop5: p1 size 11290111 extends beyond EOD, truncated print_usage_bug.cold+0x42e/0x570 kernel/locking/lockdep.c:2544 valid_state kernel/locking/lockdep.c:2557 [inline] mark_lock_irq kernel/locking/lockdep.c:2751 [inline] mark_lock+0xc70/0x1160 kernel/locking/lockdep.c:3131 mark_irqflags kernel/locking/lockdep.c:3027 [inline] __lock_acquire+0x6a8/0x3ff0 kernel/locking/lockdep.c:3372 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3907 loop5: p3 start 4276224225 is beyond EOD, truncated __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] sco_conn_del+0xb0/0x220 net/bluetooth/sco.c:175 sco_disconn_cfm net/bluetooth/sco.c:1133 [inline] sco_disconn_cfm+0x62/0x80 net/bluetooth/sco.c:1126 hci_disconn_cfm include/net/bluetooth/hci_core.h:1261 [inline] hci_conn_hash_flush+0x114/0x220 net/bluetooth/hci_conn.c:1495 loop5: p5 size 11290111 extends beyond EOD, truncated hci_dev_do_close+0x624/0xe70 net/bluetooth/hci_core.c:1666 hci_unregister_dev+0x17c/0x7f0 net/bluetooth/hci_core.c:3271 vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:354 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xbb2/0x2b70 kernel/exit.c:887 do_group_exit+0x125/0x310 kernel/exit.c:990 get_signal+0x3f2/0x1f70 kernel/signal.c:2588 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821 loop5: p1 p2 < > p3 p4 < p5 > exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 loop5: partition table partially beyond EOD, truncated prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45d5b9 Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 loop5: p1 size 11290111 extends beyond EOD, truncated RSP: 002b:00007f0aae61fcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000118cf48 RCX: 000000000045d5b9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000118cf48 RBP: 000000000118cf40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffe14b3c8af R14: 00007f0aae6209c0 R15: 000000000118cf4c loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device veth0_vlan left promiscuous mode bond4 (unregistering): Releasing backup interface bridge1 device bridge1 left promiscuous mode bond4 (unregistering): Released all slaves bond3 (unregistering): Released all slaves bond2 (unregistering): Released all slaves bond1 (unregistering): Released all slaves device hsr_slave_1 left promiscuous mode device hsr_slave_0 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves IPVS: ftp: loaded support on port[0] = 21 chnl_net:caif_netlink_parms(): no params data found bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered disabled state device bridge_slave_0 entered promiscuous mode bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_1 entered promiscuous mode bond0: Enslaving bond_slave_0 as an active interface with an up link bond0: Enslaving bond_slave_1 as an active interface with an up link IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready team0: Port device team_slave_0 added IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready team0: Port device team_slave_1 added batman_adv: batadv0: Adding interface: batadv_slave_0 batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active batman_adv: batadv0: Adding interface: batadv_slave_1 batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready device hsr_slave_0 entered promiscuous mode device hsr_slave_1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state 8021q: adding VLAN 0 to HW filter on device bond0 IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready bridge0: port 1(bridge_slave_0) entered disabled state bridge0: port 2(bridge_slave_1) entered disabled state IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready 8021q: adding VLAN 0 to HW filter on device team0 IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready 8021q: adding VLAN 0 to HW filter on device batadv0 IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready device veth0_vlan entered promiscuous mode device veth1_vlan entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready device veth0_macvtap entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready device veth1_macvtap entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: batadv0: Interface activated: batadv_slave_0 IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready batman_adv: batadv0: Interface activated: batadv_slave_1 IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready audit: type=1400 audit(1599506212.835:151): avc: denied { block_suspend } for pid=19387 comm="syz-executor.1" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated Bluetooth: hci1: command 0x0409 tx timeout loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated NOHZ: local_softirq_pending 08 NOHZ: local_softirq_pending 08 Bluetooth: hci1: command 0x041b tx timeout loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated loop5: p1 p2 < > p3 p4 < p5 > loop5: partition table partially beyond EOD, truncated loop5: p1 size 11290111 extends beyond EOD, truncated loop5: p3 start 4276224225 is beyond EOD, truncated loop5: p5 size 11290111 extends beyond EOD, truncated Bluetooth: hci1: command 0x040f tx timeout