Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 4346 Comm: syz-executor.5 Tainted: G        W           6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:dst_dev_put+0x21/0x250
Code: 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 54 55 53 48 89 fb e8 40 c6 a8 fd 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 b5 01 00 00 48 8d 7b 3a 48 8b 2b 48 b8 00 00 00
RSP: 0018:ffff88806cf08da0 EFLAGS: 00010256
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff84103977
RDX: 0000000000000000 RSI: ffffffff83cb2140 RDI: 0000000000000001
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: fffffbfff0b0a4ac
R13: 0000607f1a6391d0 R14: 0000607f1a6391d0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8eda91f6f4 CR3: 0000000036e10000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 rt_fibinfo_free_cpus.part.0+0xdb/0x1a0
 fib_nh_common_release+0xa8/0x2c0
 fib6_info_destroy_rcu+0x18b/0x1f0
 rcu_core+0x7c8/0x1800
 handle_softirqs+0x1b1/0x770
 __irq_exit_rcu+0xc4/0x100
 irq_exit_rcu+0x9/0x20
 sysvec_apic_timer_interrupt+0x70/0x80
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__tlb_remove_folio_pages+0x21/0x40
Code: 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 55 41 89 d5 41 54 49 89 f4 55 48 89 fd 53 89 cb e8 f6 b2 d3 ff 0f b6 cb 44 89 ea 5b <4c> 89 e6 48 89 ef 5d 41 5c 41 5d e9 df f3 ff ff 66 66 2e 0f 1f 84
RSP: 0018:ffff888048e8f650 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff81a0348a RDI: ffff888048e8fad0
RBP: ffff888048e8fad0 R08: 0000000000000000 R09: fffff940001a7f36
R10: 0000000000000002 R11: 0000000000000001 R12: ffffea0000d3f980
R13: 0000000000000001 R14: ffff888048e8fad0 R15: 8000000034fe6007
 unmap_page_range+0xe86/0x36d0
 unmap_single_vma.constprop.0+0x153/0x230
 unmap_vmas+0x1d6/0x430
 exit_mmap+0x181/0xaa0
 mmput+0xd5/0x390
 do_exit+0x79d/0x2970
 do_group_exit+0xd3/0x2a0
 get_signal+0x2315/0x2340
 arch_do_signal_or_restart+0x80/0x790
 exit_to_user_mode_loop+0x8b/0x110
 do_syscall_64+0x2f7/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f59badffb19
Code: Unable to access opcode bytes at 0x7f59badffaef.
RSP: 002b:00007f59b8375218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f59baf12f68 RCX: 00007f59badffb19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f59baf12f68
RBP: 00007f59baf12f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f59baf12f6c
R13: 00007ffd14f2fcff R14: 00007f59b8375300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dst_dev_put+0x21/0x250
Code: 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 54 55 53 48 89 fb e8 40 c6 a8 fd 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 b5 01 00 00 48 8d 7b 3a 48 8b 2b 48 b8 00 00 00
RSP: 0018:ffff88806cf08da0 EFLAGS: 00010256
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff84103977
RDX: 0000000000000000 RSI: ffffffff83cb2140 RDI: 0000000000000001
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: fffffbfff0b0a4ac
R13: 0000607f1a6391d0 R14: 0000607f1a6391d0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8eda91f6f4 CR3: 0000000036e10000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	f3 0f 1e fa          	endbr64
   d:	41 54                	push   %r12
   f:	55                   	push   %rbp
  10:	53                   	push   %rbx
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	e8 40 c6 a8 fd       	callq  0xfda8c659
  19:	48 89 da             	mov    %rbx,%rdx
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 b5 01 00 00    	jne    0x1e9
  34:	48 8d 7b 3a          	lea    0x3a(%rbx),%rdi
  38:	48 8b 2b             	mov    (%rbx),%rbp
  3b:	48                   	rex.W
  3c:	b8                   	.byte 0xb8
  3d:	00 00                	add    %al,(%rax)