RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 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 CPU: 1 PID: 16002 Comm: syz-executor4 Not tainted 4.19.0-rc4+ #151 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 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:ffff88019818f430 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022 RDX: 0000000000040000 RSI: ffffffff810f036e RDI: dead000000000110 RBP: ffff88019818f518 R08: ffff88018efac200 R09: 0000000000000006 R10: 0000000000000000 R11: ffff88018efac200 R12: dead000000000100 R13: ffff8801d27ca600 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f00b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f1b247d0000 CR3: 000000018f806000 CR4: 00000000001426e0 Call Trace: kobject: 'loop5' (000000007c7590c7): kobject_uevent_env kobject: 'loop5' (000000007c7590c7): fill_kobj_path: path = '/devices/virtual/block/loop5' context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 kobject: 'ppp0' (00000000c16c68ce): fill_kobj_path: path = '/devices/virtual/net/ppp0' preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3700 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:lock_acquire+0x268/0x520 kernel/locking/lockdep.c:3903 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 7f 34 f1 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff88019818f7f0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff10033031f03 RCX: 0000000000000000 RDX: 1ffffffff12a453d RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff88019818f8e0 R08: ffff88018efacaa0 R09: 0000000000000000 R10: ffff88018efaca80 R11: 8d17a3d0888caec5 R12: ffff88018efac200 kobject: 'queues' (0000000004c02d70): kobject_add_internal: parent: 'ppp0', set: '' R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 __fs_reclaim_acquire mm/page_alloc.c:3728 [inline] fs_reclaim_acquire.part.97+0x24/0x30 mm/page_alloc.c:3739 kobject: 'queues' (0000000004c02d70): kobject_uevent_env kobject: 'queues' (0000000004c02d70): kobject_uevent_env: filter function caused the event to drop! fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2d/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:513 [inline] kzalloc include/linux/slab.h:707 [inline] kvm_create_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:613 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3214 [inline] kvm_dev_ioctl+0xc23/0x1b10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3241 kobject: 'rx-0' (0000000036ba06a4): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (0000000036ba06a4): kobject_uevent_env kobject: 'rx-0' (0000000036ba06a4): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/rx-0' kobject: 'tx-0' (00000000e37d9706): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000e37d9706): kobject_uevent_env __do_compat_sys_ioctl fs/compat_ioctl.c:1419 [inline] __se_compat_sys_ioctl fs/compat_ioctl.c:1365 [inline] __ia32_compat_sys_ioctl+0x20e/0x630 fs/compat_ioctl.c:1365 kobject: 'tx-0' (00000000e37d9706): fill_kobj_path: path = '/devices/virtual/net/ppp0/queues/tx-0' do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 kobject: 'vti0' (0000000034df5396): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'vti0' (0000000034df5396): kobject_uevent_env kobject: 'vti0' (0000000034df5396): fill_kobj_path: path = '/devices/virtual/net/vti0' kobject: 'queues' (000000004802a595): kobject_add_internal: parent: 'vti0', set: '' entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 kobject: 'queues' (000000004802a595): kobject_uevent_env RIP: 0023:0xf7f04ca9 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 0c 24 c3 8b 1c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f000cc EFLAGS: 00000296 kobject: 'queues' (000000004802a595): kobject_uevent_env: filter function caused the event to drop! ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000000ae01 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace bb8d467682c66f4a ]--- kobject: 'rx-0' (00000000f254d0af): kobject_add_internal: parent: 'queues', set: 'queues' 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 kobject: 'rx-0' (00000000f254d0af): kobject_uevent_env RSP: 0018:ffff88019818f430 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801daf2cb40 RCX: 1bd5a00000000022 RDX: 0000000000040000 RSI: ffffffff810f036e RDI: dead000000000110 RBP: ffff88019818f518 R08: ffff88018efac200 R09: 0000000000000006 kobject: 'rx-0' (00000000f254d0af): fill_kobj_path: path = '/devices/virtual/net/vti0/queues/rx-0' R10: 0000000000000000 R11: ffff88018efac200 R12: dead000000000100 R13: ffff8801d27ca600 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f00b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 kobject: 'tx-0' (000000004bb6d549): kobject_add_internal: parent: 'queues', set: 'queues' CR2: 00007f1b247d0000 CR3: 000000018f806000 CR4: 00000000001426e0