smc: removing ib device syz1 ------------[ cut here ]------------ sysfs group 'power' not found for kobject 'uverbs0' WARNING: CPU: 1 PID: 199 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 199 Comm: kworker/u4:5 Not tainted 5.9.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound ib_unregister_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 panic+0x382/0x7fb kernel/panic.c:231 __warn.cold+0x20/0x4b kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279 Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 40 f8 9a 88 e8 2c d6 59 ff <0f> 0b eb 98 e8 41 6a ca ff e9 01 ff ff ff 48 89 df e8 34 6a ca ff RSP: 0018:ffffc90001357a90 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffff88f9b920 RCX: 0000000000000000 RDX: ffff8880a8a4c300 RSI: ffffffff815f5985 RDI: fffff5200026af44 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880ae5318e7 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888096196060 R13: ffffffff88f9bec0 R14: ffff88805f6705a8 R15: ffffffff8af43c60 dpm_sysfs_remove+0x97/0xb0 drivers/base/power/sysfs.c:801 device_del+0x18b/0xd90 drivers/base/core.c:3080 cdev_device_del+0x19/0x100 fs/char_dev.c:573 ib_uverbs_remove_one+0x33/0x4f0 drivers/infiniband/core/uverbs_main.c:1213 remove_client_context+0xbe/0x110 drivers/infiniband/core/device.c:735 disable_device+0x13b/0x270 drivers/infiniband/core/device.c:1285 __ib_unregister_device+0x91/0x1a0 drivers/infiniband/core/device.c:1457 ib_unregister_work+0x15/0x30 drivers/infiniband/core/device.c:1569 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Kernel Offset: disabled Rebooting in 86400 seconds..