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kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 18430 Comm: syz-executor.3 Not tainted 4.14.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880525d0300 task.stack: ffff888049298000
RIP: 0010:__phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27
RSP: 0018:ffff88804929f9a0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000007 RCX: ffffc90006c5d000
RDX: 0000000000040000 RSI: ffffffff8129bb20 RDI: 0000000000000007
RBP: 0000000080000007 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000778000000007
R13: ffff88804929f9f8 R14: 0000000000000000 R15: 0000000000000286
FS:  00007fab4da48700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe22df3c20 CR3: 0000000082fcc000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 virt_to_head_page include/linux/mm.h:600 [inline]
 qlink_to_cache mm/kasan/quarantine.c:127 [inline]
 qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:163
 quarantine_reduce+0x140/0x170 mm/kasan/quarantine.c:259
 kasan_kmalloc+0x95/0xe0 mm/kasan/kasan.c:536
 slab_post_alloc_hook mm/slab.h:442 [inline]
 slab_alloc_node mm/slab.c:3333 [inline]
 kmem_cache_alloc_node+0x135/0x7a0 mm/slab.c:3640
 __alloc_skb+0x9a/0x4c0 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 nlmsg_new include/net/netlink.h:511 [inline]
 rtmsg_ifinfo_build_skb+0x65/0x130 net/core/rtnetlink.c:2908
 rtmsg_ifinfo_event.part.0+0x2e/0xc0 net/core/rtnetlink.c:2942
 rtmsg_ifinfo_event net/core/rtnetlink.c:2951 [inline]
 rtmsg_ifinfo+0x64/0x80 net/core/rtnetlink.c:2950
 register_netdevice+0xac0/0xc70 net/core/dev.c:7706
 register_netdev+0x17/0x30 net/core/dev.c:7799
 ip6gre_init_net+0x2fd/0x4f0 net/ipv6/ip6_gre.c:1188
 ops_init+0xa5/0x3c0 net/core/net_namespace.c:118
 setup_net+0x22f/0x500 net/core/net_namespace.c:295
 copy_net_ns+0x19b/0x440 net/core/net_namespace.c:419
 create_new_namespaces+0x375/0x730 kernel/nsproxy.c:107
 unshare_nsproxy_namespaces+0xa5/0x1e0 kernel/nsproxy.c:206
 SYSC_unshare kernel/fork.c:2391 [inline]
 SyS_unshare+0x2ea/0x740 kernel/fork.c:2341
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45ca29
RSP: 002b:00007fab4da47c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 000000000050a1c0 RCX: 000000000045ca29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000c4e R14: 00000000004ce9bd R15: 00007fab4da486d4
Code: c2 7f 04 84 d2 75 26 0f b6 0d 46 58 68 07 4c 89 e0 48 d3 e8 48 85 c0 75 0d e8 ad 8a 30 00 4c 89 e0 5b 5d 41 5c c3 e8 a0 8a 30 00 <0f> 0b 48 c7 c7 49 13 92 88 e8 12 e0 59 00 eb cc e8 8b 8a 30 00 
RIP: __phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27 RSP: ffff88804929f9a0
---[ end trace a97645e3b148a541 ]---