INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 12977 Comm: syz-executor.4 Not tainted 5.2.0-rc1+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 assign_lock_key kernel/locking/lockdep.c:774 [inline]
 register_lock_class+0x167e/0x1860 kernel/locking/lockdep.c:1083
 __lock_acquire+0x116/0x5490 kernel/locking/lockdep.c:3673
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4302
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151
 spin_lock include/linux/spinlock.h:338 [inline]
 rhashtable_walk_enter+0xf9/0x390 lib/rhashtable.c:669
 __tipc_dump_start+0x1fa/0x3c0 net/tipc/socket.c:3414
 tipc_dump_start+0x70/0x90 net/tipc/socket.c:3396
 __netlink_dump_start+0x4f8/0x7d0 net/netlink/af_netlink.c:2351
 netlink_dump_start include/linux/netlink.h:226 [inline]
 tipc_sock_diag_handler_dump+0x1d9/0x270 net/tipc/diag.c:91
 __sock_diag_cmd net/core/sock_diag.c:232 [inline]
 sock_diag_rcv_msg+0x319/0x410 net/core/sock_diag.c:263
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2486
 sock_diag_rcv+0x2b/0x40 net/core/sock_diag.c:274
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1926
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:671
 ___sys_sendmsg+0x803/0x920 net/socket.c:2292
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2330
 __do_sys_sendmsg net/socket.c:2339 [inline]
 __se_sys_sendmsg net/socket.c:2337 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2337
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 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 b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f83481e0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f83481e16d4
R13: 00000000004c6c94 R14: 00000000004dba90 R15: 00000000ffffffff
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: 12977 Comm: syz-executor.4 Not tainted 5.2.0-rc1+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:list_add include/linux/list.h:79 [inline]
RIP: 0010:rhashtable_walk_enter+0x18f/0x390 lib/rhashtable.c:672
Code: c1 ea 03 80 3c 02 00 0f 85 ac 01 00 00 4d 8d 7e 10 4c 89 73 28 48 b8 00 00 00 00 00 fc ff df 48 8d 4b 18 4c 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 70 01 00 00 49 8b 56 10 48 89 cf 4c 89 fe 48 89
RSP: 0018:ffff888047077630 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a7c6fd00 RCX: ffff8880a7c6fd18
RDX: 0000000000000002 RSI: ffffffff833391e4 RDI: ffff8880a7c6fd28
RBP: ffff888047077668 R08: ffff88809fa143c0 R09: ffffed1008e0eeb4
R10: ffffed1008e0eeb3 R11: 0000000000000003 R12: ffff8880aa50aa28
R13: ffff8880aa50ab28 R14: 0000000000000000 R15: 0000000000000010
FS:  00007f83481e1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000007a40000072a CR3: 00000000a7b8f000 CR4: 00000000001406f0
Call Trace:
 __tipc_dump_start+0x1fa/0x3c0 net/tipc/socket.c:3414
 tipc_dump_start+0x70/0x90 net/tipc/socket.c:3396
 __netlink_dump_start+0x4f8/0x7d0 net/netlink/af_netlink.c:2351
 netlink_dump_start include/linux/netlink.h:226 [inline]
 tipc_sock_diag_handler_dump+0x1d9/0x270 net/tipc/diag.c:91
 __sock_diag_cmd net/core/sock_diag.c:232 [inline]
 sock_diag_rcv_msg+0x319/0x410 net/core/sock_diag.c:263
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2486
 sock_diag_rcv+0x2b/0x40 net/core/sock_diag.c:274
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1926
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:671
 ___sys_sendmsg+0x803/0x920 net/socket.c:2292
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2330
 __do_sys_sendmsg net/socket.c:2339 [inline]
 __se_sys_sendmsg net/socket.c:2337 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2337
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 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 b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f83481e0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f83481e16d4
R13: 00000000004c6c94 R14: 00000000004dba90 R15: 00000000ffffffff
Modules linked in:
---[ end trace 1ed55aa568e15f2a ]---
RIP: 0010:list_add include/linux/list.h:79 [inline]
RIP: 0010:rhashtable_walk_enter+0x18f/0x390 lib/rhashtable.c:672
Code: c1 ea 03 80 3c 02 00 0f 85 ac 01 00 00 4d 8d 7e 10 4c 89 73 28 48 b8 00 00 00 00 00 fc ff df 48 8d 4b 18 4c 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 70 01 00 00 49 8b 56 10 48 89 cf 4c 89 fe 48 89
RSP: 0018:ffff888047077630 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a7c6fd00 RCX: ffff8880a7c6fd18
RDX: 0000000000000002 RSI: ffffffff833391e4 RDI: ffff8880a7c6fd28
RBP: ffff888047077668 R08: ffff88809fa143c0 R09: ffffed1008e0eeb4
R10: ffffed1008e0eeb3 R11: 0000000000000003 R12: ffff8880aa50aa28
R13: ffff8880aa50ab28 R14: 0000000000000000 R15: 0000000000000010
FS:  00007f83481e1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000007a40000072a CR3: 00000000a7b8f000 CR4: 00000000001406f0