list_del corruption, ffff88805d9dfc90->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: 5484 Comm: dhcpcd 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:ffffc90000007d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88805d9dfc90 RCX: 45c48cbeb21f6500
RDX: 0000000000000100 RSI: 0000000000000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000007ae7 R09: 1ffff92000000f5c
R10: dffffc0000000000 R11: fffff52000000f5d R12: 1ffff1100bb3bf92
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f9b17c1c780(0000) GS:ffff888125457000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd4d9641d0 CR3: 0000000035952000 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:get_cred_namespaces+0x0/0x90 kernel/nsproxy.c:267
Code: 5f e9 e4 7d 00 00 e8 0f 83 34 00 5b 41 5e 41 5f e9 15 a4 20 0a cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <0f> 1f 40 d6 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900033f79c8 EFLAGS: 00000282
RAX: 0000000000000177 RBX: ffff8880292bbd00 RCX: ffff88801df55b80
RDX: 0000000000000000 RSI: 7fffffffffffffff RDI: ffff8880292bbd00
RBP: 0000000000000000 R08: ffffffff8e60ca3f R09: 1ffffffff1cc1947
R10: dffffc0000000000 R11: fffffbfff1cc1948 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff8191ef74 R15: ffffffff8e60c9a0
 copy_creds+0x945/0xa30 include/linux/rcupdate.h:-1
 copy_process+0x904/0x3cf0 kernel/fork.c:2085
 kernel_clone+0x248/0x8e0 kernel/fork.c:2655
 __do_sys_clone kernel/fork.c:2796 [inline]
 __se_sys_clone kernel/fork.c:2780 [inline]
 __x64_sys_clone+0x1b6/0x230 kernel/fork.c:2780
 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: 0033:0x7f9b17cf0636
Code: 89 df e8 6d e8 f6 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 52 89 c5 85 c0 75 31 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffd4d9438e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffd4d9438e8 RCX: 00007f9b17cf0636
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffd4d963e30 R08: 0000000000000000 R09: 0000000000000001
R10: 00007f9b17c1ca50 R11: 0000000000000246 R12: 00007ffd4d943a20
R13: 0000000000000000 R14: 0000000000000000 R15: 0000563b91ebdac0
 </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:ffffc90000007d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88805d9dfc90 RCX: 45c48cbeb21f6500
RDX: 0000000000000100 RSI: 0000000000000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000007ae7 R09: 1ffff92000000f5c
R10: dffffc0000000000 R11: fffff52000000f5d R12: 1ffff1100bb3bf92
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f9b17c1c780(0000) GS:ffff888125457000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd4d9641d0 CR3: 0000000035952000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	5f                   	pop    %rdi
   1:	e9 e4 7d 00 00       	jmp    0x7dea
   6:	e8 0f 83 34 00       	call   0x34831a
   b:	5b                   	pop    %rbx
   c:	41 5e                	pop    %r14
   e:	41 5f                	pop    %r15
  10:	e9 15 a4 20 0a       	jmp    0xa20a42a
  15:	cc                   	int3
  16:	0f 1f 40 00          	nopl   0x0(%rax)
  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:	0f 1f 40 d6          	nopl   -0x2a(%rax) <-- trapping instruction
  2e:	41 57                	push   %r15
  30:	41 56                	push   %r14
  32:	53                   	push   %rbx
  33:	48 89 fb             	mov    %rdi,%rbx
  36:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  3d:	fc ff df