list_del corruption, ffff88807b1e2c90->next is NULL
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5950 Comm: dhcpcd-run-hook 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 c3 cc cc cc cc cc 48 c7 c7 a0 fc 29 8c 48 89 de e8 42 ee 63 fc 90 <0f> 0b 48 c7 c7 00 fd 29 8c 48 89 de e8 30 ee 63 fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000007d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88807b1e2c90 RCX: 48a349368dccf700
RDX: 0000000000000100 RSI: 0000000000000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000007ae7 R09: 1ffff92000000f5c
R10: dffffc0000000000 R11: fffff52000000f5d R12: 1ffff1100f63c592
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125002000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe05b99f440 CR3: 00000000488a6000 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:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210
Code: 89 fb e8 23 00 00 00 48 8b 3d 84 59 67 0c 48 89 de 5b e9 f3 78 5e 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d a8 e9 7b 11 65 8b 15 c9 e9 7b
RSP: 0018:ffffc900043c72b8 EFLAGS: 00000202
RAX: ffffffff8bb34e1e RBX: 0000000000000004 RCX: 0000000000000000
RDX: ffff888026898000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900043c74b0 R08: ffff888026898000 R09: 0000000000000004
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000003
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000001
 mt_slot lib/maple_tree.c:715 [inline]
 mas_slot lib/maple_tree.c:748 [inline]
 mas_validate_limits lib/maple_tree.c:6861 [inline]
 mt_validate+0x1468/0x41f0 lib/maple_tree.c:6947
 validate_mm+0xd4/0x4c0 mm/vma.c:649
 mmap_region+0x1513/0x2240 mm/vma.c:2843
 do_mmap+0xc39/0x10c0 mm/mmap.c:559
 vm_mmap_pgoff+0x2c9/0x4f0 mm/util.c:581
 ksys_mmap_pgoff+0x51e/0x760 mm/mmap.c:605
 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: 0033:0x7fe05bc81242
Code: 08 00 04 00 00 eb e2 90 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 33 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e 5b 5d c3 0f 1f 00 c7 05 46 40 01 00 16 00
RSP: 002b:00007ffe16269828 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe05bc81242
RDX: 0000000000000001 RSI: 0000000000010888 RDI: 0000000000000000
RBP: 0000000000000802 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000802 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe05bc56580 R14: 00007ffe16269ca0 R15: 00000fffc2c4d308
 </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 c3 cc cc cc cc cc 48 c7 c7 a0 fc 29 8c 48 89 de e8 42 ee 63 fc 90 <0f> 0b 48 c7 c7 00 fd 29 8c 48 89 de e8 30 ee 63 fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000007d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88807b1e2c90 RCX: 48a349368dccf700
RDX: 0000000000000100 RSI: 0000000000000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000007ae7 R09: 1ffff92000000f5c
R10: dffffc0000000000 R11: fffff52000000f5d R12: 1ffff1100f63c592
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125002000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe05b99f440 CR3: 00000000488a6000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	89 fb                	mov    %edi,%ebx
   2:	e8 23 00 00 00       	call   0x2a
   7:	48 8b 3d 84 59 67 0c 	mov    0xc675984(%rip),%rdi        # 0xc675992
   e:	48 89 de             	mov    %rbx,%rsi
  11:	5b                   	pop    %rbx
  12:	e9 f3 78 5e 00       	jmp    0x5e790a
  17:	cc                   	int3
  18:	cc                   	int3
  19:	cc                   	int3
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	90                   	nop
  27:	90                   	nop
  28:	90                   	nop
  29:	90                   	nop
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	48 8b 04 24          	mov    (%rsp),%rax
  32:	65 48 8b 0d a8 e9 7b 	mov    %gs:0x117be9a8(%rip),%rcx        # 0x117be9e2
  39:	11
  3a:	65                   	gs
  3b:	8b                   	.byte 0x8b
  3c:	15                   	.byte 0x15
  3d:	c9                   	leave
  3e:	e9                   	.byte 0xe9
  3f:	7b                   	.byte 0x7b