INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 24319 Comm: syz-executor.5 Not tainted 5.1.0+ #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:00007f85c87aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f85c87ab6d4 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: 24319 Comm: syz-executor.5 Not tainted 5.1.0+ #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:ffff88806ce17630 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888095ddfd80 RCX: ffff888095ddfd98 RDX: 0000000000000002 RSI: ffffffff8332bdd4 RDI: ffff888095ddfda8 RBP: ffff88806ce17668 R08: ffff88806d9d8140 R09: ffffed100d9c2eb4 R10: ffffed100d9c2eb3 R11: 0000000000000003 R12: ffff88809b98d5a8 R13: ffff88809b98d6a8 R14: 0000000000000000 R15: 0000000000000010 FS: 00007f85c87ab700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000758080 CR3: 0000000090a5a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 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:00007f85c87aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f85c87ab6d4 R13: 00000000004c6c94 R14: 00000000004dba90 R15: 00000000ffffffff Modules linked in: ---[ end trace d87e0ddf487d37f0 ]--- 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:ffff88806ce17630 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888095ddfd80 RCX: ffff888095ddfd98 RDX: 0000000000000002 RSI: ffffffff8332bdd4 RDI: ffff888095ddfda8 RBP: ffff88806ce17668 R08: ffff88806d9d8140 R09: ffffed100d9c2eb4 R10: ffffed100d9c2eb3 R11: 0000000000000003 R12: ffff88809b98d5a8 R13: ffff88809b98d6a8 R14: 0000000000000000 R15: 0000000000000010 FS: 00007f85c87ab700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000758080 CR3: 0000000090a5a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600