audit: type=1800 audit(1628706174.820:3785): pid=17329 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="bus" dev="sda1" ino=14619 res=0 dlm: no locking on control device IPVS: ftp: loaded support on port[0] = 21 dlm: no locking on control device BUG: sleeping function called from invalid context at net/core/sock.c:2863 in_atomic(): 1, irqs_disabled(): 0, pid: 16026, name: syz-executor.4 1 lock held by syz-executor.4/16026: #0: 00000000d21b8f18 (hci_sk_list.lock){++++}, at: hci_sock_dev_event+0x3db/0x660 net/bluetooth/hci_sock.c:756 Preemption disabled at: [<0000000000000000>] (null) CPU: 0 PID: 16026 Comm: syz-executor.4 Not tainted 4.19.202-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/0x2ef lib/dump_stack.c:118 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6192 lock_sock_nested+0x33/0x110 net/core/sock.c:2863 lock_sock include/net/sock.h:1510 [inline] hci_sock_dev_event+0x465/0x660 net/bluetooth/hci_sock.c:758 hci_unregister_dev+0x25b/0x910 net/bluetooth/hci_core.c:3292 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+0xbf3/0x2be0 kernel/exit.c:870 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 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: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff8b13b3188 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: fffffffffffffdfe RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000380 RBP: 00000000004bfcc4 R08: 0000000000000008 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffdc4a47d1f R14: 00007ff8b13b3300 R15: 0000000000022000 Bluetooth: hci5: command 0x0406 tx timeout dlm: no locking on control device BTRFS: device fsid f5e71589-62c8-45ce-bb30-125579aa4a56 devid 1 transid 7 /dev/loop1 BTRFS error (device loop1): unsupported checksum algorithm 3 BTRFS error (device loop1): superblock checksum mismatch BTRFS error (device loop1): open_ctree failed kvm: vcpu 0: requested 128 ns lapic timer period limited to 200000 ns netlink: 80 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 80 bytes leftover after parsing attributes in process `syz-executor.3'. dlm: no locking on control device kvm: vcpu 0: requested 128 ns lapic timer period limited to 200000 ns 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: 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 veth1_macvtap left promiscuous mode device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device veth0_vlan left promiscuous mode Bluetooth: hci4: command 0x0409 tx timeout Bluetooth: hci4: command 0x041b tx timeout