======================================
| [  808.007067][    C3] ==================================================================
| [  808.007255][    C3] BUG: KASAN: slab-use-after-free in dst_dev_put (net/core/dst.c:146)
| [  808.007419][    C3] Read of size 8 at addr ff1100000ec12940 by task swapper/3/0
| [  808.007572][    C3]
[  808.007627][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  808.007629][    C3] Call Trace:
[  808.007631][    C3]  <IRQ>
[  808.007632][    C3]  dump_stack_lvl (lib/dump_stack.c:122)
[  808.007639][    C3]  print_address_description.constprop.0 (mm/kasan/report.c:379)
[  808.007643][    C3]  print_report (mm/kasan/report.c:483)
[  808.007645][    C3]  ? dst_dev_put (net/core/dst.c:146)
[  808.007647][    C3]  ? __virt_addr_valid (./include/linux/rcupdate.h:981 (discriminator 3) ./include/linux/mmzone.h:2197 (discriminator 3) arch/x86/mm/physaddr.c:54 (discriminator 3))
[  808.007651][    C3]  ? dst_dev_put (net/core/dst.c:146)
[  808.007653][    C3]  kasan_report (mm/kasan/report.c:597)
[  808.007657][    C3]  ? dst_dev_put (net/core/dst.c:146)
[  808.007659][    C3]  dst_dev_put (net/core/dst.c:146)
[  808.007661][    C3]  rt_fibinfo_free_cpus.part.0 (net/ipv4/fib_semantics.c:196)
[  808.007665][    C3]  fib_nh_common_release (net/ipv4/fib_semantics.c:141 net/ipv4/fib_semantics.c:207)
[  808.007667][    C3]  free_fib_info_rcu (./include/net/nexthop.h:480 net/ipv4/fib_semantics.c:229)
[  808.007669][    C3]  ? rcu_do_batch (kernel/rcu/tree.c:2605)
[  808.007672][    C3]  rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  808.007675][    C3]  ? trace_rcu_batch_end (kernel/rcu/tree.c:2529)
[  808.007678][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  808.007681][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[  808.007683][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  808.007687][    C3]  ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[  808.007689][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[  808.007691][    C3]  rcu_core (kernel/rcu/tree.c:2859)
[  808.007692][    C3]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  808.007696][    C3]  ? tasklet_unlock_wait (kernel/softirq.c:580)
[  808.007697][    C3]  ? __flush_smp_call_function_queue (kernel/smp.c:137 kernel/smp.c:593)
[  808.007701][    C3]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[  808.007703][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056 (discriminator 47) arch/x86/kernel/apic/apic.c:1056 (discriminator 47))
[  808.007705][    C3]  </IRQ>
[  808.007705][    C3]  <TASK>
[  808.007706][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  808.007709][    C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82)
[  808.007712][    C3] Code: 48 8b 3d c4 ac 71 02 e8 1f 00 00 00 48 2b 05 b8 22 9b 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 23 83 19 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d c4 ac 71 02 	mov    0x271acc4(%rip),%rdi        # 0x271accb
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 b8 22 9b 00 	sub    0x9b22b8(%rip),%rax        # 0x9b22cb
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 23 83 19 00 	verw   0x198323(%rip)        # 0x19834b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[  808.007714][    C3] RSP: 0018:ffa0000000157de8 EFLAGS: 00000296
[  808.007717][    C3] RAX: 0000000001b0da8b RBX: ff11000001adc540 RCX: ffffffff94084c3f
[  808.007718][    C3] RDX: ff11000001adc540 RSI: ffffffff96e0ff26 RDI: ffffffff96869f80
[  808.007719][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[  808.007720][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002afc0
[  808.007721][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[  808.007723][    C3]  ? cpuidle_idle_call (kernel/sched/idle.c:192)
[  808.007726][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  808.007728][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:767)
[  808.007730][    C3]  default_idle_call (./include/linux/cpuidle.h:143 (discriminator 1) kernel/sched/idle.c:123 (discriminator 1))
[  808.007732][    C3]  cpuidle_idle_call (kernel/sched/idle.c:192)
[  808.007733][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[  808.007734][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:52)
[  808.007737][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  808.007739][    C3]  do_idle (kernel/sched/idle.c:332)
[  808.007741][    C3]  cpu_startup_entry (kernel/sched/idle.c:429)
[  808.007742][    C3]  start_secondary (arch/x86/kernel/smpboot.c:200 (discriminator 16) arch/x86/kernel/smpboot.c:280 (discriminator 16))
[  808.007744][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:230)
[  808.007746][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:419)
| [  808.022727][    C3] Disabling lock debugging due to kernel taint
| [  808.022851][    C3] Oops: general protection fault, probably for non-canonical address 0xe03cbc478000000f: 0000 [#1] SMP KASAN
| [  808.023093][    C3] KASAN: maybe wild-memory-access in range [0x01e6023c00000078-0x01e6023c0000007f]
| [  808.023476][    C3] Tainted: [B]=BAD_PAGE
[  808.023545][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  808.023658][    C3] RIP: 0010:dst_dev_put (net/core/dst.c:149)
[  808.023751][    C3] Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 2c 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 43 08 48 8d 78 38 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 d8 01 00 00 48 8b 40 38 48 85 c0 74 08 48 89 ee
All code
========
   0:	fc                   	cld
   1:	ff                   	lcall  (bad)
   2:	df 48 c1             	fisttps -0x3f(%rax)
   5:	ea                   	(bad)
   6:	03 80 3c 02 00 0f    	add    0xf00023c(%rax),%eax
   c:	85 2c 02             	test   %ebp,(%rdx,%rax,1)
   f:	00 00                	add    %al,(%rax)
  11:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  18:	fc ff df 
  1b:	48 8b 43 08          	mov    0x8(%rbx),%rax
  1f:	48 8d 78 38          	lea    0x38(%rax),%rdi
  23:	48 89 f9             	mov    %rdi,%rcx
  26:	48 c1 e9 03          	shr    $0x3,%rcx
  2a:*	80 3c 11 00          	cmpb   $0x0,(%rcx,%rdx,1)		<-- trapping instruction
  2e:	0f 85 d8 01 00 00    	jne    0x20c
  34:	48 8b 40 38          	mov    0x38(%rax),%rax
  38:	48 85 c0             	test   %rax,%rax
  3b:	74 08                	je     0x45
  3d:	48 89 ee             	mov    %rbp,%rsi

Code starting with the faulting instruction
===========================================
   0:	80 3c 11 00          	cmpb   $0x0,(%rcx,%rdx,1)
   4:	0f 85 d8 01 00 00    	jne    0x1e2
   a:	48 8b 40 38          	mov    0x38(%rax),%rax
   e:	48 85 c0             	test   %rax,%rax
  11:	74 08                	je     0x1b
  13:	48 89 ee             	mov    %rbp,%rsi
[  808.024113][    C3] RSP: 0018:ffa0000000270d10 EFLAGS: 00010217
[  808.024276][    C3] RAX: 01e6023c00000046 RBX: ff1100000ec12940 RCX: 003cc0478000000f
[  808.024416][    C3] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 01e6023c0000007e
[  808.024547][    C3] RBP: ff110000127f19a0 R08: 0000000000000008 R09: fffffbfff318c2c4
[  808.024722][    C3] R10: fffffbfff318c2c5 R11: 0000000000000000 R12: 1fe220000185facd
[  808.024857][    C3] R13: 0000000000000000 R14: 0000000000000001 R15: ff1100000c2fd670
[  808.024991][    C3] FS:  0000000000000000(0000) GS:ff110000cd18b000(0000) knlGS:0000000000000000
[  808.025190][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  808.025306][    C3] CR2: 00007ffc360b0818 CR3: 0000000001ef8004 CR4: 0000000000771ef0
[  808.025481][    C3] PKRU: 55555554
[  808.025550][    C3] Call Trace:
[  808.025619][    C3]  <IRQ>
[  808.025666][    C3]  rt_fibinfo_free_cpus.part.0 (net/ipv4/fib_semantics.c:196)
[  808.025757][    C3]  fib_nh_common_release (net/ipv4/fib_semantics.c:141 net/ipv4/fib_semantics.c:207)
[  808.025890][    C3]  free_fib_info_rcu (./include/net/nexthop.h:480 net/ipv4/fib_semantics.c:229)
[  808.025981][    C3]  ? rcu_do_batch (kernel/rcu/tree.c:2605)
[  808.026072][    C3]  rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  808.026165][    C3]  ? trace_rcu_batch_end (kernel/rcu/tree.c:2529)
[  808.026298][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  808.026411][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[  808.026527][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  808.026618][    C3]  ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[  808.026773][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[  808.026890][    C3]  rcu_core (kernel/rcu/tree.c:2859)
[  808.026960][    C3]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  808.027050][    C3]  ? tasklet_unlock_wait (kernel/softirq.c:580)
[  808.027182][    C3]  ? __flush_smp_call_function_queue (kernel/smp.c:137 kernel/smp.c:593)
[  808.027298][    C3]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[  808.027370][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056 (discriminator 47) arch/x86/kernel/apic/apic.c:1056 (discriminator 47))
[  808.027459][    C3]  </IRQ>
[  808.027547][    C3]  <TASK>
[  808.027604][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  808.027715][    C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82)
[  808.027809][    C3] Code: 48 8b 3d c4 ac 71 02 e8 1f 00 00 00 48 2b 05 b8 22 9b 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 23 83 19 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d c4 ac 71 02 	mov    0x271acc4(%rip),%rdi        # 0x271accb
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 b8 22 9b 00 	sub    0x9b22b8(%rip),%rax        # 0x9b22cb
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 23 83 19 00 	verw   0x198323(%rip)        # 0x19834b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[  808.028168][    C3] RSP: 0018:ffa0000000157de8 EFLAGS: 00000296
[  808.028286][    C3] RAX: 0000000001b0da8b RBX: ff11000001adc540 RCX: ffffffff94084c3f
[  808.028464][    C3] RDX: ff11000001adc540 RSI: ffffffff96e0ff26 RDI: ffffffff96869f80
[  808.028599][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[  808.028777][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002afc0
[  808.028912][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[  808.029046][    C3]  ? cpuidle_idle_call (kernel/sched/idle.c:192)
[  808.029177][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[  808.029269][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:767)
[  808.029340][    C3]  default_idle_call (./include/linux/cpuidle.h:143 (discriminator 1) kernel/sched/idle.c:123 (discriminator 1))
[  808.029433][    C3]  cpuidle_idle_call (kernel/sched/idle.c:192)
[  808.029563][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[  808.029654][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:52)
[  808.029744][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  808.029860][    C3]  do_idle (kernel/sched/idle.c:332)
[  808.029969][    C3]  cpu_startup_entry (kernel/sched/idle.c:429)
[  808.030059][    C3]  start_secondary (arch/x86/kernel/smpboot.c:200 (discriminator 16) arch/x86/kernel/smpboot.c:280 (discriminator 16))
[  808.030147][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:230)


Finger prints:
print_report:kasan_report:dst_dev_put:fib_nh_common_release:free_fib_info_rcu
dst_dev_put:fib_nh_common_release:free_fib_info_rcu:rcu_do_batch:rcu_core