general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
CPU: 0 PID: 5617 Comm: syz-executor.4 Not tainted 5.15.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dst_dev_put+0x1f/0x2b0 net/core/dst.c:154
Code: 0f 1f 84 00 00 00 00 00 0f 1f 00 41 55 41 54 55 53 48 89 fb e8 82 7d 54 fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 29 02 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00
RSP: 0018:ffffc90000007d50 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000046 RCX: 0000000000000100
RDX: 0000000000000008 RSI: ffffffff87225a8e RDI: 0000000000000046
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888026ace5ab
R10: ffffffff87b59100 R11: 1ffff11017386537 R12: dffffc0000000000
R13: 0000607f460375a8 R14: ffffffff8d6e74a4 R15: 0000000000000046
FS:  00007f802af6f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ce21000 CR3: 0000000074e62000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rt_fibinfo_free_cpus.part.0+0xf5/0x180 net/ipv4/fib_semantics.c:202
 rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:194 [inline]
 fib_nh_common_release+0x10c/0x330 net/ipv4/fib_semantics.c:213
 fib_nh_release net/ipv4/fib_semantics.c:225 [inline]
 free_fib_info_rcu+0x24b/0x4e0 net/ipv4/fib_semantics.c:237
 rcu_do_batch kernel/rcu/tree.c:2508 [inline]
 rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2743
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode+0x31/0x40 kernel/kcov.c:175
Code: 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 64 15 00 00 85 d2 74 0b 8b 86 40 15 00 00 39 f8 0f 94 c0 <c3> 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 31 c0 65 8b 15 f7 1f
RSP: 0018:ffffc90002d6f840 EFLAGS: 00000297
RAX: 0000000000000000 RBX: ffffc90002d6f948 RCX: ffff888023171c80
RDX: 0000000000000000 RSI: ffff888023171c80 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000004e24 R09: 0000000000000001
R10: ffffffff83a25ff5 R11: 0000000000000000 R12: ffff888027f68100
R13: 0000000000000010 R14: ffffc90002d6f96c R15: 0000000000000003
 write_comp_data kernel/kcov.c:218 [inline]
 __sanitizer_cov_trace_const_cmp1+0x22/0x80 kernel/kcov.c:270
 tomoyo_check_inet_acl+0x155/0x350 security/tomoyo/network.c:426
 tomoyo_check_acl+0x13c/0x450 security/tomoyo/domain.c:175
 tomoyo_inet_entry security/tomoyo/network.c:483 [inline]
 tomoyo_check_inet_address+0x5d3/0x710 security/tomoyo/network.c:532
 tomoyo_socket_sendmsg_permission+0x29f/0x3a0 security/tomoyo/network.c:774
 security_socket_sendmsg+0x50/0xb0 security/security.c:2206
 sock_sendmsg+0x3f/0x120 net/socket.c:721
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f802d9f9a39
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f802af6f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f802dafcf60 RCX: 00007f802d9f9a39
RDX: 0000000000008000 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00007f802da53c5f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffccef4baf R14: 00007f802af6f300 R15: 0000000000022000
Modules linked in:
---[ end trace d144c458b26c3a14 ]---
RIP: 0010:dst_dev_put+0x1f/0x2b0 net/core/dst.c:154
Code: 0f 1f 84 00 00 00 00 00 0f 1f 00 41 55 41 54 55 53 48 89 fb e8 82 7d 54 fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 29 02 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00
RSP: 0018:ffffc90000007d50 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000046 RCX: 0000000000000100
RDX: 0000000000000008 RSI: ffffffff87225a8e RDI: 0000000000000046
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888026ace5ab
R10: ffffffff87b59100 R11: 1ffff11017386537 R12: dffffc0000000000
R13: 0000607f460375a8 R14: ffffffff8d6e74a4 R15: 0000000000000046
FS:  00007f802af6f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ce21000 CR3: 0000000074e62000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
   7:	00
   8:	0f 1f 00             	nopl   (%rax)
   b:	41 55                	push   %r13
   d:	41 54                	push   %r12
   f:	55                   	push   %rbp
  10:	53                   	push   %rbx
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	e8 82 7d 54 fa       	callq  0xfa547d9b
  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 29 02 00 00    	jne    0x25d
  34:	48 8d 7b 3a          	lea    0x3a(%rbx),%rdi
  38:	4c 8b 23             	mov    (%rbx),%r12
  3b:	48                   	rex.W
  3c:	b8                   	.byte 0xb8
  3d:	00 00                	add    %al,(%rax)