general protection fault, probably for non-canonical address 0xdffffc000000002a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000150-0x0000000000000157] CPU: 0 PID: 3670 Comm: kworker/0:7 Not tainted 5.18.0-rc1-next-20220408-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:__lock_acquire+0xd85/0x5660 kernel/locking/lockdep.c:4923 Code: 1b 0e 41 be 01 00 00 00 0f 86 c8 00 00 00 89 05 f1 4c 1b 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 2d 00 00 48 81 3b e0 63 24 8f 0f 84 4f f3 ff RSP: 0018:ffffc90003c8f330 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000150 RCX: 0000000000000000 RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88801f7ed7c0 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d80283018 CR3: 000000001e576000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5665 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630 down_write+0x90/0x150 kernel/locking/rwsem.c:1542 inode_lock include/linux/fs.h:752 [inline] simple_recursive_removal+0x171/0x830 fs/libfs.c:276 debugfs_remove fs/debugfs/inode.c:742 [inline] debugfs_remove+0x59/0x80 fs/debugfs/inode.c:736 blk_mq_debugfs_unregister_queue_rqos+0x34/0x70 block/blk-mq-debugfs.c:840 rq_qos_exit+0x1e/0xf0 block/blk-rq-qos.c:297 blk_cleanup_queue+0x11c/0x220 block/blk-core.c:319 __scsi_remove_device+0x10b/0x330 drivers/scsi/scsi_sysfs.c:1451 scsi_forget_host+0x133/0x190 drivers/scsi/scsi_scan.c:1965 scsi_remove_host+0xf4/0x260 drivers/scsi/hosts.c:181 quiesce_and_remove_host drivers/usb/storage/usb.c:867 [inline] usb_stor_disconnect+0x115/0x260 drivers/usb/storage/usb.c:1087 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:531 [inline] device_remove+0x11f/0x170 drivers/base/dd.c:523 __device_release_driver drivers/base/dd.c:1199 [inline] device_release_driver_internal+0x4a3/0x680 drivers/base/dd.c:1222 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529 device_del+0x4f3/0xc80 drivers/base/core.c:3592 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419 usb_disconnect.cold+0x278/0x6ec drivers/usb/core/hub.c:2228 hub_port_connect drivers/usb/core/hub.c:5207 [inline] hub_port_connect_change drivers/usb/core/hub.c:5507 [inline] port_event drivers/usb/core/hub.c:5665 [inline] hub_event+0x1e74/0x4680 drivers/usb/core/hub.c:5747 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xd85/0x5660 kernel/locking/lockdep.c:4923 Code: 1b 0e 41 be 01 00 00 00 0f 86 c8 00 00 00 89 05 f1 4c 1b 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 2d 00 00 48 81 3b e0 63 24 8f 0f 84 4f f3 ff RSP: 0018:ffffc90003c8f330 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000150 RCX: 0000000000000000 RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88801f7ed7c0 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d80283018 CR3: 000000001e576000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 1b 0e sbb (%rsi),%ecx 2: 41 be 01 00 00 00 mov $0x1,%r14d 8: 0f 86 c8 00 00 00 jbe 0xd6 e: 89 05 f1 4c 1b 0e mov %eax,0xe1b4cf1(%rip) # 0xe1b4d05 14: e9 bd 00 00 00 jmpq 0xd6 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 da mov %rbx,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 1e 2d 00 00 jne 0x2d52 34: 48 81 3b e0 63 24 8f cmpq $0xffffffff8f2463e0,(%rbx) 3b: 0f .byte 0xf 3c: 84 4f f3 test %cl,-0xd(%rdi) 3f: ff .byte 0xff