------------[ cut here ]------------ WARNING: CPU: 2 PID: 10682 at kernel/kthread.c:524 __kthread_bind_mask kernel/kthread.c:524 [inline] WARNING: CPU: 2 PID: 10682 at kernel/kthread.c:524 kthread_bind_mask+0x39/0xc0 kernel/kthread.c:542 Modules linked in: CPU: 2 PID: 10682 Comm: syz-executor.0 Not tainted 6.2.0-rc4-syzkaller-00041-gc1649ec55708 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__kthread_bind_mask kernel/kthread.c:524 [inline] RIP: 0010:kthread_bind_mask+0x39/0xc0 kernel/kthread.c:542 Code: fb e8 9b 0a 2d 00 be 02 00 00 00 48 89 df e8 ee 4a 04 00 31 ff 48 89 c5 48 89 c6 e8 51 07 2d 00 48 85 ed 75 12 e8 77 0a 2d 00 <0f> 0b 5b 5d 41 5c 41 5d e9 6a 0a 2d 00 e8 65 0a 2d 00 4c 8d ab 58 RSP: 0018:ffffc90029eafba0 EFLAGS: 00010212 RAX: 0000000000002165 RBX: ffff88801c7557c0 RCX: ffffc90003c71000 RDX: 0000000000040000 RSI: ffffffff815457f9 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff8e72f658 R13: ffff88804be27b40 R14: ffff888022b83820 R15: ffff888022b83800 FS: 0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7f74b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002d727000 CR3: 00000000625da000 CR4: 0000000000152ee0 Call Trace: init_rescuer kernel/workqueue.c:4280 [inline] init_rescuer+0x141/0x1d0 kernel/workqueue.c:4259 alloc_workqueue+0xca3/0x1020 kernel/workqueue.c:4347 kvm_mmu_init_tdp_mmu+0x92/0x1c0 arch/x86/kvm/mmu/tdp_mmu.c:24 kvm_mmu_init_vm+0x12c/0x360 arch/x86/kvm/mmu/mmu.c:6020 kvm_arch_init_vm+0x6c/0x750 arch/x86/kvm/x86.c:12097 kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1201 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:5023 [inline] kvm_dev_ioctl+0xb04/0x1cd0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:5065 __do_compat_sys_ioctl+0x255/0x2b0 fs/ioctl.c:968 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f79549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7f745cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000000ae01 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi