kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
9p: Unknown access argument 00000000000000000000Eeche=loose
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 18954 Comm: syz-executor6 Not tainted 4.19.0-rc2+ #227
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rhashtable_walk_start_check+0xd3/0x13d0 lib/rhashtable.c:717
Code: f2 c7 40 30 f2 f2 f2 f2 c7 40 34 00 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 74 e8 ef fd 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 74 0f 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b
RSP: 0018:ffff88018c5ceee8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffc90005a6e000
RDX: 0000000000000753 RSI: ffffffff838ee6cc RDI: 0000000000000000
RBP: ffff88018c5cf130 R08: ffff8801beac6100 R09: ffffed00311a3574
kobject: 'loop4' (00000000d0895b49): kobject_uevent_env
R10: ffffed00311a3574 R11: ffff880188d1aba3 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88018c5cf270 R15: fffffffffffff000
kobject: 'loop4' (00000000d0895b49): fill_kobj_path: path = '/devices/virtual/block/loop4'
FS:  00007f6a3a1f9700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
9p: Unknown access argument 00000000000000000000Eeche=loose
CR2: 00000000004ed258 CR3: 00000001c2519000 CR4: 00000000001426f0
Call Trace:
kobject: 'loop2' (0000000085181912): kobject_uevent_env
kobject: 'loop2' (0000000085181912): fill_kobj_path: path = '/devices/virtual/block/loop2'
 rhashtable_walk_start include/linux/rhashtable.h:244 [inline]
 tipc_nl_sk_walk+0x52/0x1d0 net/tipc/socket.c:3236
 tipc_nl_sk_dump+0x24/0x30 net/tipc/socket.c:3366
 __tipc_nl_compat_dumpit.isra.11+0x20b/0xad0 net/tipc/netlink_compat.c:192
 tipc_nl_compat_dumpit+0x1f4/0x440 net/tipc/netlink_compat.c:265
 tipc_nl_compat_handle net/tipc/netlink_compat.c:1142 [inline]
 tipc_nl_compat_recv+0x12b3/0x19a0 net/tipc/netlink_compat.c:1205
 genl_family_rcv_msg+0x8a9/0x1140 net/netlink/genetlink.c:601
9p: Unknown access argument 00000000000000000000Eeche=loose
 genl_rcv_msg+0xc6/0x168 net/netlink/genetlink.c:626
 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:637
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908
kobject: 'loop4' (00000000d0895b49): kobject_uevent_env
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:631
kobject: 'loop4' (00000000d0895b49): fill_kobj_path: path = '/devices/virtual/block/loop4'
 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2114
9p: Unknown access argument 00000000000000000000Eeche=loose
 __sys_sendmsg+0x11d/0x280 net/socket.c:2152
kobject: 'loop0' (00000000c57ac9cd): kobject_uevent_env
 __do_sys_sendmsg net/socket.c:2161 [inline]
 __se_sys_sendmsg net/socket.c:2159 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2159
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
kobject: 'loop0' (00000000c57ac9cd): fill_kobj_path: path = '/devices/virtual/block/loop0'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457099
Code: fd 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f6a3a1f8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f6a3a1f96d4 RCX: 0000000000457099
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004d4bc0 R14: 00000000004c910b R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
9p: Unknown access argument 00000000000000000000Eeche=loose
---[ end trace f7f87882d38d66ff ]---
kobject: 'loop5' (00000000d5e9c912): kobject_uevent_env
kobject: 'loop0' (00000000c57ac9cd): kobject_uevent_env
RIP: 0010:rhashtable_walk_start_check+0xd3/0x13d0 lib/rhashtable.c:717
kobject: 'loop0' (00000000c57ac9cd): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (00000000d5e9c912): fill_kobj_path: path = '/devices/virtual/block/loop5'
Code: f2 c7 40 30 f2 f2 f2 f2 c7 40 34 00 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 74 e8 ef fd 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 74 0f 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b
kobject: 'loop7' (00000000f0c11dda): kobject_uevent_env
kobject: 'kvm' (000000005edb6884): kobject_uevent_env
kobject: 'kvm' (000000005edb6884): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'loop7' (00000000f0c11dda): fill_kobj_path: path = '/devices/virtual/block/loop7'
kobject: 'loop1' (000000009eaef22a): kobject_uevent_env
kobject: 'kvm' (000000005edb6884): kobject_uevent_env
RSP: 0018:ffff88018c5ceee8 EFLAGS: 00010246
kobject: 'loop1' (000000009eaef22a): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000d0895b49): kobject_uevent_env
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffc90005a6e000
kobject: 'kvm' (000000005edb6884): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000d0895b49): fill_kobj_path: path = '/devices/virtual/block/loop4'
RDX: 0000000000000753 RSI: ffffffff838ee6cc RDI: 0000000000000000
kobject: 'loop7' (00000000f0c11dda): kobject_uevent_env
RBP: ffff88018c5cf130 R08: ffff8801beac6100 R09: ffffed00311a3574
kobject: 'loop7' (00000000f0c11dda): fill_kobj_path: path = '/devices/virtual/block/loop7'
R10: ffffed00311a3574 R11: ffff880188d1aba3 R12: 0000000000000000
kobject: 'loop4' (00000000d0895b49): kobject_uevent_env
kobject: 'kvm' (000000005edb6884): kobject_uevent_env
R13: 0000000000000000 R14: ffff88018c5cf270 R15: fffffffffffff000
kobject: 'loop4' (00000000d0895b49): fill_kobj_path: path = '/devices/virtual/block/loop4'
FS:  00007f6a3a1f9700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
kobject: 'kvm' (000000005edb6884): kobject_uevent_env
kobject: 'loop3' (000000009e62c2a4): kobject_uevent_env
kobject: 'kvm' (000000005edb6884): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000009e62c2a4): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000c57ac9cd): kobject_uevent_env
kobject: 'kvm' (000000005edb6884): fill_kobj_path: path = '/devices/virtual/misc/kvm'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop1' (000000009eaef22a): kobject_uevent_env
kobject: 'loop1' (000000009eaef22a): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000c57ac9cd): fill_kobj_path: path = '/devices/virtual/block/loop0'
print_req_error: I/O error, dev loop0, sector 0
CR2: 0000000000723604 CR3: 00000001c2519000 CR4: 00000000001426e0
print_req_error: I/O error, dev loop0, sector 1024