hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 0 PID: 11045 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2259 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2371 [inline] validate_chain kernel/locking/lockdep.c:2391 [inline] __lock_acquire.cold+0x420/0x57e kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 rq_lock kernel/sched/sched.h:1826 [inline] __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:3641 ___preempt_schedule+0x16/0x18 __mutex_lock_common kernel/locking/mutex.c:1070 [inline] __mutex_lock+0xd7d/0x1190 kernel/locking/mutex.c:1078 dev_pm_qos_expose_flags+0x121/0x300 drivers/base/power/qos.c:699 usb_hub_create_port_device+0x97f/0xd50 drivers/usb/core/port.c:579 hub_configure drivers/usb/core/hub.c:1623 [inline] hub_probe+0x1fe7/0x2e10 drivers/usb/core/hub.c:1855 usb_probe_interface+0x317/0x9d0 drivers/usb/core/driver.c:361 really_probe+0x622/0xbd0 drivers/base/dd.c:506 driver_probe_device+0x218/0x340 drivers/base/dd.c:667 __device_attach_driver+0x29e/0x370 drivers/base/dd.c:754 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:464 __device_attach+0x226/0x470 drivers/base/dd.c:822 proc_ioctl+0x526/0x630 drivers/usb/core/devio.c:2192 proc_ioctl_default drivers/usb/core/devio.c:2227 [inline] usbdev_do_ioctl+0x2773/0x3030 drivers/usb/core/devio.c:2541 usbdev_ioctl+0x21/0x30 drivers/usb/core/devio.c:2585 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f40e494e0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f40e2e7e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f40e4a6e120 RCX: 00007f40e494e0f9 RDX: 0000000020000040 RSI: 00000000c0105512 RDI: 0000000000000007 RBP: 00007f40e49a9ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcfd4a000f R14: 00007f40e2e7e300 R15: 0000000000022000 hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 kauditd_printk_skb: 57 callbacks suppressed audit: type=1804 audit(1678165854.573:684): pid=11289 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir3661143886/syzkaller.wvn6Eo/569/.pending_reads" dev="sda1" ino=14752 res=1 audit: type=1800 audit(1678165856.044:685): pid=11414 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name=".pending_reads" dev="sda1" ino=15578 res=0 caif:caif_disconnect_client(): nothing to disconnect netlink: 'syz-executor.2': attribute type 1 has an invalid length. IPv6: ADDRCONF(NETDEV_UP): bond6: link is not ready 8021q: adding VLAN 0 to HW filter on device bond6 netlink: 'syz-executor.2': attribute type 1 has an invalid length. IPv6: ADDRCONF(NETDEV_UP): bond7: link is not ready 8021q: adding VLAN 0 to HW filter on device bond7 netlink: 'syz-executor.2': attribute type 1 has an invalid length. IPv6: ADDRCONF(NETDEV_UP): bond8: link is not ready 8021q: adding VLAN 0 to HW filter on device bond8 netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. IPVS: ftp: loaded support on port[0] = 21 nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. IPVS: ftp: loaded support on port[0] = 21 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.