kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN kobject: 'loop1' (000000002bc22e13): kobject_uevent_env CPU: 1 PID: 8220 Comm: syz-executor5 Not tainted 4.19.0-rc4+ #248 kobject: 'loop1' (000000002bc22e13): fill_kobj_path: path = '/devices/virtual/block/loop1' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2481 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline] RIP: 0010:finish_task_switch+0x599/0x900 kernel/sched/core.c:2679 kobject: 'ppp0' (00000000e89cf041): kobject_add_internal: parent: 'net', set: 'devices' Code: 89 e1 48 c1 e9 03 42 80 3c 39 00 0f 85 a7 01 00 00 4d 8b 24 24 4d 85 e4 0f 84 ad fc ff ff 49 8d 7c 24 10 48 89 f9 48 c1 e9 03 <42> 80 3c 39 00 74 a5 e8 5b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00 RSP: 0018:ffff88018fbef3b0 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022 RDX: 0000000000006184 RSI: ffffffff810f036e RDI: dead000000000110 kobject: 'ppp0' (00000000e89cf041): kobject_uevent_env RBP: ffff88018fbef498 R08: ffff880190afc5c0 R09: fffff52001ea4e46 R10: fffff52001ea4e46 R11: ffffc9000f527237 R12: dead000000000100 R13: ffff8801901a63c0 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f2985307700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'ppp0' (00000000e89cf041): fill_kobj_path: path = '/devices/virtual/net/ppp0' CR2: 00007f8902558000 CR3: 00000001c15c8000 CR4: 00000000001426e0 Call Trace: kobject: 'queues' (0000000002e80848): kobject_add_internal: parent: 'ppp0', set: '' kobject: 'queues' (0000000002e80848): kobject_uevent_env kobject: 'queues' (0000000002e80848): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (000000004cb6a534): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (000000004cb6a534): kobject_uevent_env context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 kobject: 'rx-0' (000000004cb6a534): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'tx-0' (00000000acb86bfc): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000acb86bfc): kobject_uevent_env preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3700 retint_kernel+0x1b/0x2d RIP: 0010:inode_lock include/linux/fs.h:738 [inline] RIP: 0010:start_creating+0xdd/0x220 fs/debugfs/inode.c:307 kobject: 'tx-0' (00000000acb86bfc): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' Code: b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 24 01 00 00 48 8b 43 58 48 8d b8 d8 00 00 00 e8 83 43 ea 04 <4c> 89 e7 e8 8b 6c e6 04 4c 89 e7 48 89 de 89 c2 e8 3e 32 fc fe 48 RSP: 0018:ffff88018fbef778 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8801cb69b880 RCX: 0000000000000000 RDX: 1ffff100396d3b40 RSI: 0000000000000000 RDI: ffff8801cb69da00 RBP: ffff88018fbef790 R08: ffff880190afce60 R09: 0000000000000000 R10: ffff880190afce40 R11: af69de341f8c9c0a R12: ffffffff8802ac40 R13: ffff8801cb69b8d8 R14: ffffffff8802ac40 R15: ffff8801cb69b880 __debugfs_create_file+0x63/0x400 fs/debugfs/inode.c:347 debugfs_create_file+0x57/0x70 fs/debugfs/inode.c:399 kvm_create_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:620 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3214 [inline] kvm_dev_ioctl+0xbe0/0x1b10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3241 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2985306c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f29853076d4 RCX: 0000000000457679 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000006 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cfc28 R14: 00000000004bfd60 R15: 0000000000000000 Modules linked in: ---[ end trace f4cf1ffae12b0bfd ]--- RIP: 0010:__fire_sched_in_preempt_notifiers kernel/sched/core.c:2481 [inline] RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:2487 [inline] RIP: 0010:finish_task_switch+0x599/0x900 kernel/sched/core.c:2679 Code: 89 e1 48 c1 e9 03 42 80 3c 39 00 0f 85 a7 01 00 00 4d 8b 24 24 4d 85 e4 0f 84 ad fc ff ff 49 8d 7c 24 10 48 89 f9 48 c1 e9 03 <42> 80 3c 39 00 74 a5 e8 5b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00 RSP: 0018:ffff88018fbef3b0 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022 kobject: 'loop0' (000000004ebebc63): kobject_uevent_env RDX: 0000000000006184 RSI: ffffffff810f036e RDI: dead000000000110 RBP: ffff88018fbef498 R08: ffff880190afc5c0 R09: fffff52001ea4e46 kobject: 'loop0' (000000004ebebc63): fill_kobj_path: path = '/devices/virtual/block/loop0' R10: fffff52001ea4e46 R11: ffffc9000f527237 R12: dead000000000100 kobject: 'kvm' (00000000a6203bbe): kobject_uevent_env R13: ffff8801901a63c0 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f2985307700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8902558000 CR3: 00000001c15c8000 CR4: 00000000001426e0