kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9723 Comm: kworker/u4:7 Not tainted 5.2.0-rc3+ #25 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:dst_dev_put+0x24/0x280 net/core/dst.c:156 Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 4d 78 eb fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e1 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 RSP: 0018:ffff8880ae809cc8 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000227 RCX: 1ffffffff1301d66 RDX: 0000000000000044 RSI: ffffffff85852fb3 RDI: 0000000000000227 RBP: ffff8880ae809ce8 R08: ffff888068c3e600 R09: ffff888068c3eef0 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000007 R14: 0000000000000227 R15: 0000607f51475ea0 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffecdb05fec CR3: 0000000093ad2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rt_fibinfo_free_cpus.part.0+0xdb/0x130 net/ipv4/fib_semantics.c:202 rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:194 [inline] fib_nh_common_release+0x107/0x280 net/ipv4/fib_semantics.c:215 fib6_nh_release+0x299/0x3a0 net/ipv6/route.c:3487 fib6_info_destroy_rcu+0x11e/0x160 net/ipv6/ip6_fib.c:174 __rcu_reclaim kernel/rcu/rcu.h:222 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0xba5/0x1500 kernel/rcu/tree.c:2291 __do_softirq+0x25c/0x94c kernel/softirq.c:293 invoke_softirq kernel/softirq.c:374 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:414 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:lock_acquire+0x1ea/0x3f0 kernel/locking/lockdep.c:4306 Code: 7c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 c4 01 00 00 48 83 3d 72 07 5b 07 00 0f 84 38 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b RSP: 0018:ffff88805dbdfb28 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1164e7e RBX: ffff888068c3e600 RCX: ffff888068c3ee80 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff88805dbdfb70 R08: 0000000093a3370f R09: ffff888068c3ef18 R10: ffff888068c3eef8 R11: ffff888068c3e600 R12: ffffffff88ba3580 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 rcu_lock_acquire include/linux/rcupdate.h:208 [inline] rcu_read_lock include/linux/rcupdate.h:593 [inline] inet_twsk_purge+0xc0/0x5f0 net/ipv4/inet_timewait_sock.c:268 dccp_v4_exit_batch+0x1a/0x20 net/dccp/ipv4.c:1030 ops_exit_list.isra.0+0xfc/0x150 net/core/net_namespace.c:157 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:553 process_one_work+0x989/0x1790 kernel/workqueue.c:2269 worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x354/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 8eb827756eff0315 ]--- RIP: 0010:dst_dev_put+0x24/0x280 net/core/dst.c:156 Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 4d 78 eb fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e1 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 RSP: 0018:ffff8880ae809cc8 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000227 RCX: 1ffffffff1301d66 RDX: 0000000000000044 RSI: ffffffff85852fb3 RDI: 0000000000000227 RBP: ffff8880ae809ce8 R08: ffff888068c3e600 R09: ffff888068c3eef0 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000007 R14: 0000000000000227 R15: 0000607f51475ea0 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffecdb05fec CR3: 0000000008a6d000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400