Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.15.0-rc2-syzkaller-00278-gfc96b232f8e7 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:dst_dev_put+0x27/0x290 net/core/dst.c:146
Code: 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 49 89 fd 49 bf 00 00 00 00 00 fc ff df e8 d0 65 db f7 4d 89 ec 49 c1 ec 03 <43> 80 3c 3c 00 74 08 4c 89 ef e8 2a 14 43 f8 4d 8b 75 00 49 8d 7d
RSP: 0018:ffffc90000a08ad8 EFLAGS: 00010246
RAX: ffffffff89e75430 RBX: 0000000000000001 RCX: ffff88801d6c5a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 1ffffffff1cf0e64 R08: ffffffff8a922db9 R09: 1ffff1100bf04cc1
R10: dffffc0000000000 R11: ffffed100bf04cc2 R12: 0000000000000000
R13: 0000000000000001 R14: 00000000fffffff8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881250cf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb760c053b3 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:195 [inline]
 fib_nh_common_release+0x1fc/0x420 net/ipv4/fib_semantics.c:206
 fib_nh_release net/ipv4/fib_semantics.c:218 [inline]
 free_fib_info_rcu+0xdc/0x4a0 net/ipv4/fib_semantics.c:230
 rcu_do_batch kernel/rcu/tree.c:2568 [inline]
 rcu_core+0xaac/0x17a0 kernel/rcu/tree.c:2824
 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5250
Code: c9 50 e8 a9 2d 0d 00 48 83 c4 08 4c 89 f7 e8 ad 41 00 00 0f 1f 44 00 00 4c 89 f7 e8 10 49 99 0a e8 eb 73 39 00 fb 48 8b 5d c0 <48> 8d bb 18 16 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc90000197b28 EFLAGS: 00000282
RAX: d0d5bfc244ec2200 RBX: ffff88801d6c5a00 RCX: ffffffff81caaa8c
RDX: 0000000000000000 RSI: ffffffff8e6356dd RDI: ffffffff8ca0e2e0
RBP: ffffc90000197b70 R08: ffffffff905ebd77 R09: 1ffffffff20bd7ae
R10: dffffc0000000000 R11: fffffbfff20bd7af R12: 1ffff110170e74f6
R13: dffffc0000000000 R14: ffff8880b8739980 R15: ffff8880b873a7b0
 context_switch kernel/sched/core.c:5385 [inline]
 __schedule+0x1b3b/0x51f0 kernel/sched/core.c:6767
 schedule_idle+0x56/0x90 kernel/sched/core.c:6886
 do_idle+0x569/0x5d0 kernel/sched/idle.c:353
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423
 start_secondary+0xfe/0x100 arch/x86/kernel/smpboot.c:315
 common_startup_64+0x13e/0x147
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dst_dev_put+0x27/0x290 net/core/dst.c:146
Code: 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 49 89 fd 49 bf 00 00 00 00 00 fc ff df e8 d0 65 db f7 4d 89 ec 49 c1 ec 03 <43> 80 3c 3c 00 74 08 4c 89 ef e8 2a 14 43 f8 4d 8b 75 00 49 8d 7d
RSP: 0018:ffffc90000a08ad8 EFLAGS: 00010246
RAX: ffffffff89e75430 RBX: 0000000000000001 RCX: ffff88801d6c5a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 1ffffffff1cf0e64 R08: ffffffff8a922db9 R09: 1ffff1100bf04cc1
R10: dffffc0000000000 R11: ffffed100bf04cc2 R12: 0000000000000000
R13: 0000000000000001 R14: 00000000fffffff8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881250cf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb760c053b3 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
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:	49 89 fd             	mov    %rdi,%r13
  14:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  1b:	fc ff df
  1e:	e8 d0 65 db f7       	call   0xf7db65f3
  23:	4d 89 ec             	mov    %r13,%r12
  26:	49 c1 ec 03          	shr    $0x3,%r12
* 2a:	43 80 3c 3c 00       	cmpb   $0x0,(%r12,%r15,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ef             	mov    %r13,%rdi
  34:	e8 2a 14 43 f8       	call   0xf8431463
  39:	4d 8b 75 00          	mov    0x0(%r13),%r14
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	7d                   	.byte 0x7d