------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=80 set at [] queue_balance_callback kernel/sched/sched.h:1695 [inline] do not call blocking ops when !TASK_RUNNING; state=80 set at [] do_task_dead+0x0/0x100 kernel/sched/core.c:6080 WARNING: CPU: 0 PID: 9166 at kernel/sched/core.c:9656 __might_sleep+0x105/0x150 kernel/sched/core.c:9656 Modules linked in: CPU: 0 PID: 9166 Comm: syz-executor.1 Tainted: G W 5.17.0-syzkaller-10753-gbddac7c1e02b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__might_sleep+0x105/0x150 kernel/sched/core.c:9656 Code: 70 02 00 48 8d bb f0 16 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 34 48 8b 93 f0 16 00 00 48 c7 c7 00 f1 cb 89 e8 55 c7 c8 07 <0f> 0b e9 75 ff ff ff e8 5f 4b 73 00 e9 26 ff ff ff 89 34 24 e8 62 RSP: 0018:ffffc90000007d68 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888075af5700 RCX: 0000000000000000 RDX: ffff888075af5700 RSI: ffffffff81602018 RDI: fffff52000000f9f RBP: ffffffff8a248b00 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815fc9de R11: 0000000000000000 R12: 00000000000002fe R13: 0000000000000000 R14: ffffffff8a248f00 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe1211691b8 CR3: 000000001ff9e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_release_queue+0x1f/0x320 block/blk-sysfs.c:766 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1c8/0x540 lib/kobject.c:753 blkg_free.part.0+0x112/0x1f0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0x105/0x160 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0x7b1/0x1880 kernel/rcu/tree.c:2786 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:schedule_debug kernel/sched/core.c:5627 [inline] RIP: 0010:__schedule+0x12d/0x4940 kernel/sched/core.c:6273 Code: 80 3c 02 00 0f 85 e4 3c 00 00 48 8b 85 70 ff ff ff 48 8b 58 20 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80 3c 02 00 <0f> 85 b1 3c 00 00 48 81 3b 9d 6e ac 57 0f 85 db 47 00 00 48 8b 85 RSP: 0018:ffffc900036afa30 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffc900036a8000 RCX: 0000000000000000 RDX: 1ffff920006d5000 RSI: 0000000000000001 RDI: ffff888075af5720 RBP: ffffc900036afb58 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff817f4e48 R11: 0000000000000000 R12: ffffc900036a8000 R13: dffffc0000000000 R14: ffff888075af5700 R15: ffff8880b9c39f80 do_task_dead+0xd1/0x100 kernel/sched/core.c:6400 do_exit+0x18f6/0x2a30 kernel/exit.c:846 do_group_exit+0xd2/0x2f0 kernel/exit.c:924 get_signal+0x4b0/0x28c0 kernel/signal.c:2903 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:149 [inline] exit_to_user_mode_loop kernel/entry/common.c:187 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:222 __syscall_exit_to_user_mode_work kernel/entry/common.c:304 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:315 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fe121089049 Code: Unable to access opcode bytes at RIP 0x7fe12108901f. RSP: 002b:00007fe11fffe218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fe12119bf68 RCX: 00007fe121089049 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe12119bf68 RBP: 00007fe12119bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe12119bf6c R13: 00007fe1216cfb1f R14: 00007fe11fffe300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 4: 0f 85 e4 3c 00 00 jne 0x3cee a: 48 8b 85 70 ff ff ff mov -0x90(%rbp),%rax 11: 48 8b 58 20 mov 0x20(%rax),%rbx 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 89 da mov %rbx,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 0f 85 b1 3c 00 00 jne 0x3ce1 <-- trapping instruction 30: 48 81 3b 9d 6e ac 57 cmpq $0x57ac6e9d,(%rbx) 37: 0f 85 db 47 00 00 jne 0x4818 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 85 .byte 0x85