Oops: general protection fault, probably for non-canonical address 0xdffffc0000000012: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:dst_dev_put+0x27/0x2b0 net/core/dst.c:147
Code: 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 f0 38 45 f8 49 89 dd 49 c1 ed 03 <43> 80 7c 25 00 00 74 08 48 89 df e8 99 91 b0 f8 4c 8b 33 48 8d 7b
RSP: 0000:ffffc90000a08d18 EFLAGS: 00010207
RAX: ffffffff89807dc0 RBX: 0000000000000094 RCX: ffff88801de90000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000094
RBP: 1ffffffff1c4d5d6 R08: ffff888056038653 R09: 1ffff1100ac070ca
R10: dffffc0000000000 R11: ffffed100ac070cb R12: dffffc0000000000
R13: 0000000000000012 R14: 0000607eda9bb1a8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88812538b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 000000003a5f2000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:195 [inline]
 fib_nh_common_release+0x1ed/0x420 net/ipv4/fib_semantics.c:206
 fib6_info_destroy_rcu+0xca/0x1c0 net/ipv6/ip6_fib.c:177
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:finish_task_switch+0x427/0xbe0 kernel/sched/core.c:5245
Code: 41 c7 84 24 e0 0d 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 46 7a 17 0a e8 e1 fd 38 00 fb 49 8d bd c8 16 00 00 <48> 89 f8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 7b 03 00 00 41 80
RSP: 0000:ffffc900001d7ab0 EFLAGS: 00000206
RAX: 000000000046a717 RBX: 1ffff110170e77cc RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8dfafc25 RDI: ffff88801de916c8
RBP: ffffc900001d7b10 R08: ffffffff90309df7 R09: 1ffffffff20613be
R10: dffffc0000000000 R11: fffffbfff20613bf R12: ffff8880b873b0c8
R13: ffff88801de90000 R14: ffff88802da88000 R15: dffffc0000000000
 context_switch kernel/sched/core.c:5391 [inline]
 __schedule+0x1829/0x5740 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7283
 smpboot_thread_fn+0x5bc/0xa50 kernel/smpboot.c:156
 kthread+0x389/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dst_dev_put+0x27/0x2b0 net/core/dst.c:147
Code: 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 f0 38 45 f8 49 89 dd 49 c1 ed 03 <43> 80 7c 25 00 00 74 08 48 89 df e8 99 91 b0 f8 4c 8b 33 48 8d 7b
RSP: 0000:ffffc90000a08d18 EFLAGS: 00010207
RAX: ffffffff89807dc0 RBX: 0000000000000094 RCX: ffff88801de90000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000094
RBP: 1ffffffff1c4d5d6 R08: ffff888056038653 R09: 1ffff1100ac070ca
R10: dffffc0000000000 R11: ffffed100ac070cb R12: dffffc0000000000
R13: 0000000000000012 R14: 0000607eda9bb1a8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88812538b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 000000003a5f2000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	f3 0f 1e fa          	endbr64
   7:	55                   	push   %rbp
   8:	41 57                	push   %r15
   a:	41 56                	push   %r14
   c:	41 55                	push   %r13
   e:	41 54                	push   %r12
  10:	53                   	push   %rbx
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  1b:	fc ff df
  1e:	e8 f0 38 45 f8       	call   0xf8453913
  23:	49 89 dd             	mov    %rbx,%r13
  26:	49 c1 ed 03          	shr    $0x3,%r13
* 2a:	43 80 7c 25 00 00    	cmpb   $0x0,0x0(%r13,%r12,1) <-- trapping instruction
  30:	74 08                	je     0x3a
  32:	48 89 df             	mov    %rbx,%rdi
  35:	e8 99 91 b0 f8       	call   0xf8b091d3
  3a:	4c 8b 33             	mov    (%rbx),%r14
  3d:	48                   	rex.W
  3e:	8d                   	.byte 0x8d
  3f:	7b                   	.byte 0x7b