Hello, syzbot found the following issue on: HEAD commit: 70cd0576aa39 usb: hcd: Bump local buffer size in rh_string() git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=126159f8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8e4b3bd94cc7cf2d dashboard link: https://syzkaller.appspot.com/bug?extid=624d9e79ec456915d85d compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14d45e18580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13eb9624580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/612846dc004d/disk-70cd0576.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2adbdc698bbb/vmlinux-70cd0576.xz kernel image: https://storage.googleapis.com/syzbot-assets/111a4615d3e0/bzImage-70cd0576.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+624d9e79ec456915d85d@xxxxxxxxxxxxxxxxxxxxxxxxx usb 3-1: USB disconnect, device number 2 ------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88812426c9a8 object type: timer_list hint: corsair_void_status_work_handler+0x0/0xb0 drivers/hid/hid-corsair-void.c:533 WARNING: CPU: 0 PID: 8 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612 Modules linked in: CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.13.0-rc7-syzkaller-g70cd0576aa39 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612 Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 48 8b 14 dd 40 45 47 87 41 56 4c 89 e6 48 c7 c7 c0 39 47 87 e8 af b1 c0 fe 90 <0f> 0b 90 90 58 83 05 06 73 f7 07 01 48 83 c4 18 5b 5d 41 5c 41 5d RSP: 0018:ffffc9000008f278 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff811f6859 RDX: ffff8881016957c0 RSI: ffffffff811f6866 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff87474060 R13: ffffffff872aa620 R14: ffffffff857581b0 R15: ffffc9000008f388 FS: 0000000000000000(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f41a9db4e10 CR3: 0000000114ce4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] debug_check_no_obj_freed+0x4b7/0x600 lib/debugobjects.c:1129 slab_free_hook mm/slub.c:2284 [inline] slab_free mm/slub.c:4613 [inline] kfree+0x294/0x470 mm/slub.c:4761 release_nodes+0x11e/0x240 drivers/base/devres.c:506 devres_release_group+0x1be/0x2a0 drivers/base/devres.c:689 hid_device_remove+0x107/0x260 drivers/hid/hid-core.c:2779 device_remove+0xc8/0x170 drivers/base/dd.c:567 __device_release_driver drivers/base/dd.c:1273 [inline] device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576 device_del+0x396/0x9f0 drivers/base/core.c:3854 hid_remove_device drivers/hid/hid-core.c:2958 [inline] hid_destroy_device+0x19c/0x240 drivers/hid/hid-core.c:2980 usbhid_disconnect+0xa0/0xe0 drivers/hid/usbhid/hid-core.c:1458 usb_unbind_interface+0x1e2/0x960 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:569 [inline] device_remove+0x122/0x170 drivers/base/dd.c:561 __device_release_driver drivers/base/dd.c:1273 [inline] device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576 device_del+0x396/0x9f0 drivers/base/core.c:3854 usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418 usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2305 hub_port_connect drivers/usb/core/hub.c:5363 [inline] hub_port_connect_change drivers/usb/core/hub.c:5663 [inline] port_event drivers/usb/core/hub.c:5823 [inline] hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5905 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
