!!!! css_killed_ref_fn enqueue(ffff8881150d2400) !!!! css_killed_ref_fn enqueue(ffff8881150d0000) !!!! css_release enqueue(ffff8881150d0000) list_add corruption. prev->next should be next (ffff8881f725c060), but was ffff8881150d0070. (prev=ffff8881150d0070). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W 5.10.110-syzkaller-00174-geba830c9b38e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid+0xc6/0xd0 lib/list_debug.c:26 Code: 48 c7 c7 80 db 43 85 4c 89 e6 4c 89 f1 31 c0 e8 8d 10 40 02 0f 0b 48 c7 c7 40 dc 43 85 4c 89 f6 4c 89 e1 31 c0 e8 77 10 40 02 <0f> 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 49 RSP: 0018:ffffc900000c77e0 EFLAGS: 00010046 RAX: 0000000000000075 RBX: ffff8881f725c068 RCX: 6e4af497fd7b9a00 RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 RBP: ffffc900000c7808 R08: ffffffff8153b2f8 R09: ffffed103ee44e83 R10: ffffed103ee44e83 R11: 1ffff1103ee44e82 R12: ffff8881150d0070 R13: dffffc0000000000 R14: ffff8881f725c060 R15: ffff8881150d0070 FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff06178bb8 CR3: 000000010bbca000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:67 [inline] list_add_tail include/linux/list.h:100 [inline] insert_work+0x107/0x330 kernel/workqueue.c:1352 __queue_work+0x971/0xd30 kernel/workqueue.c:1514 queue_work_on+0xf2/0x150 kernel/workqueue.c:1541 queue_work include/linux/workqueue.h:513 [inline] css_release+0xc0/0xd0 kernel/cgroup/cgroup.c:5153 percpu_ref_put_many include/linux/percpu-refcount.h:322 [inline] percpu_ref_put include/linux/percpu-refcount.h:338 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:162 [inline] percpu_ref_switch_to_atomic_rcu+0x5a2/0x5b0 lib/percpu-refcount.c:199 rcu_do_batch+0x4f8/0xbc0 kernel/rcu/tree.c:2485 rcu_core+0x59b/0xe30 kernel/rcu/tree.c:2722 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2735 __do_softirq+0x27e/0x596 kernel/softirq.c:305 run_ksoftirqd+0x23/0x30 kernel/softirq.c:667 smpboot_thread_fn+0x551/0x930 kernel/smpboot.c:164 kthread+0x349/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Modules linked in: ---[ end trace eb0090bb59c3f93b ]--- RIP: 0010:__list_add_valid+0xc6/0xd0 lib/list_debug.c:26 Code: 48 c7 c7 80 db 43 85 4c 89 e6 4c 89 f1 31 c0 e8 8d 10 40 02 0f 0b 48 c7 c7 40 dc 43 85 4c 89 f6 4c 89 e1 31 c0 e8 77 10 40 02 <0f> 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 49 RSP: 0018:ffffc900000c77e0 EFLAGS: 00010046 RAX: 0000000000000075 RBX: ffff8881f725c068 RCX: 6e4af497fd7b9a00 RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 RBP: ffffc900000c7808 R08: ffffffff8153b2f8 R09: ffffed103ee44e83 R10: ffffed103ee44e83 R11: 1ffff1103ee44e82 R12: ffff8881150d0070 R13: dffffc0000000000 R14: ffff8881f725c060 R15: ffff8881150d0070 FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff06178bb8 CR3: 000000010bbca000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400