WARNING: CPU: 0 PID: 4775 at fs/sysfs/group.c:280 sysfs_remove_group+0xf2/0x140 fs/sysfs/group.c:278 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 4775 Comm: pvrusb2-context Not tainted 5.6.0-rc5-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+0x96/0xe0 lib/dump_stack.c:118 panic+0x2a1/0x52a kernel/panic.c:221 __warn.cold.10+0x25/0x2f kernel/panic.c:582 report_bug+0x1aa/0x260 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x12d/0x1e0 arch/x86/kernel/traps.c:267 do_invalid_op+0x31/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x2d/0x40 arch/x86/entry/entry_64.S:1027 RIP: 0010:sysfs_remove_group+0xf2/0x140 fs/sysfs/group.c:278 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 3e 48 8b 33 48 c7 c7 20 4b 79 88 e8 2a 20 6e ff <0f> 0b 48 83 c4 08 5b 5d 41 5c c3 e8 ae 61 d1 ff e9 26 ff ff ff 48 RSP: 0018:ffffc9000916fa80 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffff88cea7e0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff89de9fc0 RDI: ffffffff8e4d8220 RBP: 0000000000000000 R08: ffffed10173c6479 R09: ffffed10173c6479 R10: ffffed10173c6478 R11: ffff8880b9e323c7 R12: ffff8880a9176000 R13: 1ffff9200122df5a R14: 0000000000000000 R15: ffffffff8b7993a0 device_del+0x173/0xc00 drivers/base/core.c:2654 device_unregister+0x11/0x90 drivers/base/core.c:2709 device_destroy+0x80/0xb0 drivers/base/core.c:3288 i2cdev_detach_adapter+0xb8/0x110 drivers/i2c/i2c-dev.c:685 notifier_call_chain+0x86/0x150 kernel/notifier.c:83 __blocking_notifier_call_chain+0x70/0xc0 kernel/notifier.c:284 device_del+0x16b/0xc00 drivers/base/core.c:2651 device_unregister+0x11/0x90 drivers/base/core.c:2709 i2c_del_adapter+0x3f8/0x610 drivers/i2c/i2c-core-base.c:1577 pvr2_i2c_core_done+0x4b/0x92 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:652 pvr2_hdw_destroy+0x146/0x360 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2680 pvr2_context_destroy+0x6d/0x1e0 drivers/media/usb/pvrusb2/pvrusb2-context.c:70 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline] pvr2_context_thread_func drivers/media/usb/pvrusb2/pvrusb2-context.c:158 [inline] pvr2_context_thread_func+0x480/0x660 drivers/media/usb/pvrusb2/pvrusb2-context.c:149 kthread+0x31d/0x3e0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..