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: 0 PID: 24243 Comm: syz-executor4 Not tainted 4.19.0-rc4+ #247 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 2b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00 kobject: 'kvm' (00000000db1f8e4b): kobject_uevent_env RSP: 0018:ffff8801bd92f028 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801dae2cb40 RCX: 1bd5a00000000022 RDX: 000000000000a5d6 RSI: ffffffff810f036e RDI: dead000000000110 RBP: ffff8801bd92f110 R08: ffff8801d9664100 R09: fffff52001dd9846 R10: fffff52001dd9846 R11: ffffc9000eecc237 R12: dead000000000100 R13: ffff880196292580 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fb474720700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb4746dc0b8 CR3: 000000019b049000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'kvm' (00000000db1f8e4b): fill_kobj_path: path = '/devices/virtual/misc/kvm' Call Trace: binder: 24271:24272 got transaction with invalid data ptr binder_alloc: binder_alloc_mmap_handler: 24271 20001000-20004000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 24271: binder_alloc_buf, no vma context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 binder: 24271:24272 ioctl 40046207 0 returned -16 preempt_schedule_common+0x1f/0xd0 kernel/sched/core.c:3597 preempt_schedule+0x4d/0x60 kernel/sched/core.c:3623 ___preempt_schedule+0x16/0x18 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] _raw_spin_unlock_irqrestore+0xbb/0xd0 kernel/locking/spinlock.c:184 try_to_wake_up+0x10a/0x12f0 kernel/sched/core.c:2055 wake_up_process kernel/sched/core.c:2123 [inline] wake_up_q+0xa4/0x100 kernel/sched/core.c:441 __mutex_unlock_slowpath+0x43c/0x8c0 kernel/locking/mutex.c:1249 mutex_unlock+0xd/0x10 kernel/locking/mutex.c:713 kobject_uevent_env+0x9e9/0x1360 lib/kobject_uevent.c:589 kvm_uevent_notify_change.part.33+0x2f8/0x440 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3922 kvm_uevent_notify_change arch/x86/kvm/../../../virt/kvm/kvm_main.c:3881 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3219 [inline] kvm_dev_ioctl+0x15e6/0x1b10 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:00007fb47471fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb4747206d4 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 9d9d86e34ca4ca57 ]--- 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 2b cb 6c 00 eb 9e 49 8d 7d 78 48 b8 00 00 RSP: 0018:ffff8801bd92f028 EFLAGS: 00010a06 RAX: 0000000000000000 RBX: ffff8801dae2cb40 RCX: 1bd5a00000000022 RDX: 000000000000a5d6 RSI: ffffffff810f036e RDI: dead000000000110 RBP: ffff8801bd92f110 R08: ffff8801d9664100 R09: fffff52001dd9846 kobject: 'kvm' (00000000db1f8e4b): kobject_uevent_env R10: fffff52001dd9846 R11: ffffc9000eecc237 R12: dead000000000100 R13: ffff880196292580 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fb474720700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 binder_alloc: binder_alloc_mmap_handler: 24277 20001000-20004000 already mapped failed -16 CR2: 00007fb4746dc0b8 CR3: 000000019b049000 CR4: 00000000001426f0 kobject: 'kvm' (00000000db1f8e4b): fill_kobj_path: path = '/devices/virtual/misc/kvm' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Unknown ioctl -1072933430 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400