list_del corruption, ffff888055cfe890->next is NULL
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5189 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000a08d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff888055cfe890 RCX: a2622030bbd14a00
RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000a08ae7 R09: 1ffff9200014115c
R10: dffffc0000000000 R11: fffff5200014115d R12: 1ffff1100ab9fd12
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f2e71951880(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2e713f2b60 CR3: 0000000069ce2000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del_init include/linux/list.h:295 [inline]
 dst_destroy+0x202/0x5a0 net/core/dst.c:163
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x870 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:194
Code: f7 e8 3d b7 f0 f5 f7 c3 00 02 00 00 74 05 e8 20 0e 1c f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 54 69 e2 f5 65 8b 05 6d 11 6b 07 85 c0 74 18 5b 41 5e e9 91 48
RSP: 0018:ffffc90003127ac8 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000246 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8defcb55 RDI: 0000000000000001
RBP: ffffc90003127bf0 R08: ffffffff9011e8b7 R09: 1ffffffff2023d16
R10: dffffc0000000000 R11: fffffbfff2023d17 R12: 1ffff92000624fae
R13: 1ffff92000624f60 R14: ffff8880b8728280 R15: dffffc0000000000
 schedule_hrtimeout_range_clock+0x137/0x320 kernel/time/sleep_timeout.c:213
 ep_poll fs/eventpoll.c:2028 [inline]
 do_epoll_wait+0xd36/0xf60 fs/eventpoll.c:2462
 __do_sys_epoll_wait fs/eventpoll.c:2470 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2465 [inline]
 __x64_sys_epoll_wait+0x1d7/0x230 fs/eventpoll.c:2465
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e712a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fffa71760d0 EFLAGS: 00000202 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007f2e71951880 RCX: 00007f2e712a7407
RDX: 0000000000000008 RSI: 00007fffa7176230 RDI: 000000000000000b
RBP: 00005582a6e6ded0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000bb8 R11: 0000000000000202 R12: 0000000000000000
R13: 00005582762e5100 R14: 0000000000000007 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000a08d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff888055cfe890 RCX: a2622030bbd14a00
RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000a08ae7 R09: 1ffff9200014115c
R10: dffffc0000000000 R11: fffff5200014115d R12: 1ffff1100ab9fd12
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f2e71951880(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2e713f2b60 CR3: 0000000069ce2000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	f7 e8                	imul   %eax
   2:	3d b7 f0 f5 f7       	cmp    $0xf7f5f0b7,%eax
   7:	c3                   	ret
   8:	00 02                	add    %al,(%rdx)
   a:	00 00                	add    %al,(%rax)
   c:	74 05                	je     0x13
   e:	e8 20 0e 1c f6       	call   0xf61c0e33
  13:	9c                   	pushf
  14:	58                   	pop    %rax
  15:	a9 00 02 00 00       	test   $0x200,%eax
  1a:	75 27                	jne    0x43
  1c:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 54 69 e2 f5       	call   0xf5e26983 <-- trapping instruction
  2f:	65 8b 05 6d 11 6b 07 	mov    %gs:0x76b116d(%rip),%eax        # 0x76b11a3
  36:	85 c0                	test   %eax,%eax
  38:	74 18                	je     0x52
  3a:	5b                   	pop    %rbx
  3b:	41 5e                	pop    %r14
  3d:	e9                   	.byte 0xe9
  3e:	91                   	xchg   %eax,%ecx
  3f:	48                   	rex.W