general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 24106 Comm: syz-executor.1 Not tainted 5.9.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dst_dev_put+0x1d/0x220 net/core/dst.c:156
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc 41 54 55 53 48 89 fb e8 24 a1 27 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 8b 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00
RSP: 0018:ffffc90000da8dd0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000007 RCX: 1ffffffff134c120
RDX: 0000000000000000 RSI: ffffffff864e8bdc RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8880631fcd60
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806573d0a0
R13: 0000000000000007 R14: 0000000000000007 R15: ffffe8ffffc80a20
FS:  00007f37216fa700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff81abaddc CR3: 000000009594b000 CR4: 00000000001506e0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 fib6_nh_release+0x241/0x3c0 net/ipv6/route.c:3567
 fib6_info_destroy_rcu+0x187/0x210 net/ipv6/ip6_fib.c:174
 rcu_do_batch kernel/rcu/tree.c:2428 [inline]
 rcu_core+0x5ca/0x1130 kernel/rcu/tree.c:2656
 __do_softirq+0x1f8/0xb23 kernel/softirq.c:298
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 do_softirq_own_stack+0x9d/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:393 [inline]
 __irq_exit_rcu kernel/softirq.c:423 [inline]
 irq_exit_rcu+0x235/0x280 kernel/softirq.c:435
 sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:lock_is_held include/linux/lockdep.h:267 [inline]
RIP: 0010:rcu_read_lock_sched_held+0x29/0xb0 kernel/rcu/update.c:136
Code: 00 41 54 41 bc 01 00 00 00 e8 83 b9 a3 06 85 c0 75 06 44 89 e0 41 5c c3 e8 f4 65 00 00 84 c0 74 69 e8 6b 76 00 00 84 c0 74 60 <be> ff ff ff ff 48 c7 c7 80 7e e6 89 e8 26 b8 a3 06 85 c0 75 d3 65
RSP: 0018:ffffc900087ef000 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff815bf0ef
RDX: 1ffffffff13cdf5e RSI: 0000000000000003 RDI: ffffffff89e6faf0
RBP: 1ffff920010fde04 R08: 0000000000000000 R09: ffffffff8b34a88f
R10: fffffbfff1669511 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff89f4e980 R14: ffffffff8807e00c R15: dffffc0000000000
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x6a1/0x8f0 kernel/locking/lockdep.c:5017
 __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline]
 _raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:394 [inline]
 __mutex_unlock_slowpath+0x2ac/0x610 kernel/locking/mutex.c:1278
 pcpu_alloc+0x15f5/0x1fe0 mm/percpu.c:1832
 fib6_nh_init+0x8a6/0x1a80 net/ipv6/route.c:3519
 ip6_route_info_create+0x1278/0x19d0 net/ipv6/route.c:3700
 addrconf_f6i_alloc+0x2ff/0x4b0 net/ipv6/route.c:4463
 ipv6_add_addr+0x39d/0x1eb0 net/ipv6/addrconf.c:1087
 add_addr+0xcf/0x2b0 net/ipv6/addrconf.c:3073
 sit_add_v4_addrs net/ipv6/addrconf.c:3132 [inline]
 addrconf_sit_config net/ipv6/addrconf.c:3383 [inline]
 addrconf_notify+0x1a75/0x2310 net/ipv6/addrconf.c:3576
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2033
 call_netdevice_notifiers_extack net/core/dev.c:2045 [inline]
 call_netdevice_notifiers net/core/dev.c:2059 [inline]
 __dev_notify_flags+0x110/0x2b0 net/core/dev.c:8323
 dev_change_flags+0x100/0x160 net/core/dev.c:8361
 devinet_ioctl+0x14fd/0x1ca0 net/ipv4/devinet.c:1143
 inet_ioctl+0x1ea/0x330 net/ipv4/af_inet.c:967
 packet_ioctl+0xad/0x260 net/packet/af_packet.c:4144
 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1047
 sock_ioctl+0x3b8/0x730 net/socket.c:1198
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5f9
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f37216f9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000000153c0 RCX: 000000000045d5f9
RDX: 0000000020000180 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffcdc724f3f R14: 00007f37216fa9c0 R15: 000000000118cf4c
Modules linked in:
---[ end trace ec3ced4e2f500025 ]---
RIP: 0010:dst_dev_put+0x1d/0x220 net/core/dst.c:156
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc 41 54 55 53 48 89 fb e8 24 a1 27 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 8b 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00
RSP: 0018:ffffc90000da8dd0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000007 RCX: 1ffffffff134c120
RDX: 0000000000000000 RSI: ffffffff864e8bdc RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8880631fcd60
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806573d0a0
R13: 0000000000000007 R14: 0000000000000007 R15: ffffe8ffffc80a20
FS:  00007f37216fa700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff81abaddc CR3: 000000009594b000 CR4: 00000000001506e0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600