!!! css_killed_ref_fn css ffff88811443e400 !!! !!! css_killed_ref_fn css ffff8881166a9400 !!! !!! css_release css ffff8881166a9400 !!! list_add corruption. prev->next should be next (ffff8881f715b560), but was ffff8881166a9470. (prev=ffff8881166a9470). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 18 Comm: ksoftirqd/1 Tainted: G W 5.10.119-syzkaller-00165-g07d497086047 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid+0xde/0xf0 lib/list_debug.c:26 Code: f1 31 c0 e8 c7 cc 1b 02 0f 0b 48 c7 c7 90 44 d6 85 e8 b6 f2 19 00 48 c7 c7 c0 02 03 85 4c 89 f6 4c 89 e1 31 c0 e8 a5 cc 1b 02 <0f> 0b 48 c7 c7 a0 44 d6 85 e8 94 f2 19 00 0f 1f 40 00 55 48 89 e5 RSP: 0018:ffffc90000137a20 EFLAGS: 00010046 RAX: 0000000000000075 RBX: ffff8881f715b568 RCX: ee5de3fc97053400 RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 RBP: ffffc90000137a48 R08: ffffffff815145e8 R09: ffffed103ee24e73 R10: ffffed103ee24e73 R11: 1ffff1103ee24e72 R12: ffff8881166a9470 R13: dffffc0000000000 R14: ffff8881f715b560 R15: ffff8881166a9470 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce6917fb0 CR3: 0000000109158000 CR4: 00000000003506a0 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+0xfc/0x330 kernel/workqueue.c:1342 __queue_work+0x99e/0xe20 kernel/workqueue.c:1504 queue_work_on+0xbe/0x110 kernel/workqueue.c:1531 queue_work include/linux/workqueue.h:507 [inline] css_release+0xc0/0xd0 kernel/cgroup/cgroup.c:5116 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+0x5be/0x5e0 lib/percpu-refcount.c:199 rcu_do_batch+0x4ad/0xb00 kernel/rcu/tree.c:2485 rcu_core+0x64a/0xdf0 kernel/rcu/tree.c:2726 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2739 __do_softirq+0x253/0x67b kernel/softirq.c:298 run_ksoftirqd+0x23/0x30 kernel/softirq.c:653 smpboot_thread_fn+0x4c8/0x8b0 kernel/smpboot.c:164 kthread+0x365/0x400 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Modules linked in: ---[ end trace fca5e2e0f619fa03 ]--- RIP: 0010:__list_add_valid+0xde/0xf0 lib/list_debug.c:26 Code: f1 31 c0 e8 c7 cc 1b 02 0f 0b 48 c7 c7 90 44 d6 85 e8 b6 f2 19 00 48 c7 c7 c0 02 03 85 4c 89 f6 4c 89 e1 31 c0 e8 a5 cc 1b 02 <0f> 0b 48 c7 c7 a0 44 d6 85 e8 94 f2 19 00 0f 1f 40 00 55 48 89 e5 RSP: 0018:ffffc90000137a20 EFLAGS: 00010046 RAX: 0000000000000075 RBX: ffff8881f715b568 RCX: ee5de3fc97053400 RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 RBP: ffffc90000137a48 R08: ffffffff815145e8 R09: ffffed103ee24e73 R10: ffffed103ee24e73 R11: 1ffff1103ee24e72 R12: ffff8881166a9470 R13: dffffc0000000000 R14: ffff8881f715b560 R15: ffff8881166a9470 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce6917fb0 CR3: 0000000109158000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400