EXT4-fs (loop1): couldn't mount RDWR because of unsupported optional features (24540000)
EXT4-fs (loop1): Skipping orphan cleanup due to unknown ROCOMPAT features
EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
IPVS: ftp: loaded support on port[0] = 21
BUG: unable to handle kernel paging request at 0000070007000708
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1250 Comm: syz-executor.5 Not tainted 4.19.192-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:find_stack lib/stackdepot.c:193 [inline]
RIP: 0010:depot_save_stack+0x11d/0x410 lib/stackdepot.c:242
Code: 00 41 89 dd 41 81 e5 ff ff 0f 00 4a 8b 2c ed 80 cc 46 8d 48 85 ed 75 12 e9 b6 00 00 00 48 8b 6d 00 48 85 ed 0f 84 a9 00 00 00 <39> 5d 08 75 ee 3b 7d 0c 75 e9 31 c0 48 8b 54 c5 18 48 39 14 c1 75
RSP: 0018:ffff888238b672b0 EFLAGS: 00010206
RAX: 00000000156d9c8e RBX: 00000000ea858142 RCX: ffff888238b67310
RDX: 0000000026f93c59 RSI: 0000000000000013 RDI: 0000000000000013
RBP: 0000070007000700 R08: 00000000006000c0 R09: 0000000000000002
R10: 0000000069e21108 R11: 00000000a1e6e881 R12: ffff888238b672f8
R13: 0000000000058142 R14: ffff8880b5b97d80 R15: 00000000000000e8
FS:  00007fc9c0c12700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000070007000708 CR3: 0000000233d62000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 save_stack mm/kasan/kasan.c:454 [inline]
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0x139/0x160 mm/kasan/kasan.c:553
 slab_post_alloc_hook mm/slab.h:445 [inline]
 slab_alloc_node mm/slab.c:3340 [inline]
 kmem_cache_alloc_node+0x133/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 alloc_uevent_skb+0x7b/0x210 lib/kobject_uevent.c:289
 uevent_net_broadcast_tagged lib/kobject_uevent.c:350 [inline]
 kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
 kobject_uevent_env+0x10f1/0x1480 lib/kobject_uevent.c:591
 device_add+0xb2f/0x16d0 drivers/base/core.c:2168
 netdev_register_kobject+0x181/0x430 net/core/net-sysfs.c:1806
 register_netdevice+0xb46/0x10f0 net/core/dev.c:8722
 __ip_tunnel_create+0x398/0x580 net/ipv4/ip_tunnel.c:280
 ip_tunnel_init_net+0x330/0x990 net/ipv4/ip_tunnel.c:1024
 vti_init_net+0x2a/0x370 net/ipv4/ip_vti.c:520
 ops_init+0xb3/0x410 net/core/net_namespace.c:129
 setup_net+0x2c2/0x720 net/core/net_namespace.c:315
 copy_net_ns+0x1f7/0x340 net/core/net_namespace.c:438
 create_new_namespaces+0x3f6/0x7b0 kernel/nsproxy.c:107
 copy_namespaces+0x325/0x3c0 kernel/nsproxy.c:165
 copy_process.part.0+0x3a59/0x8260 kernel/fork.c:1915
 copy_process kernel/fork.c:1709 [inline]
 _do_fork+0x22f/0xf30 kernel/fork.c:2218
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665d9
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:00007fc9c0c12188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000004412c500
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffe7703d12f R14: 00007fc9c0c12300 R15: 0000000000022000
Modules linked in:
CR2: 0000070007000708
---[ end trace d32024adf15f35c5 ]---
RIP: 0010:find_stack lib/stackdepot.c:193 [inline]
RIP: 0010:depot_save_stack+0x11d/0x410 lib/stackdepot.c:242
Code: 00 41 89 dd 41 81 e5 ff ff 0f 00 4a 8b 2c ed 80 cc 46 8d 48 85 ed 75 12 e9 b6 00 00 00 48 8b 6d 00 48 85 ed 0f 84 a9 00 00 00 <39> 5d 08 75 ee 3b 7d 0c 75 e9 31 c0 48 8b 54 c5 18 48 39 14 c1 75
RSP: 0018:ffff888238b672b0 EFLAGS: 00010206
RAX: 00000000156d9c8e RBX: 00000000ea858142 RCX: ffff888238b67310
RDX: 0000000026f93c59 RSI: 0000000000000013 RDI: 0000000000000013
RBP: 0000070007000700 R08: 00000000006000c0 R09: 0000000000000002
R10: 0000000069e21108 R11: 00000000a1e6e881 R12: ffff888238b672f8
R13: 0000000000058142 R14: ffff8880b5b97d80 R15: 00000000000000e8
FS:  00007fc9c0c12700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000070007000708 CR3: 0000000233d62000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400