RBP: 00007fbf842ad024 R08: 0000000000000004 R09: 0000000000000000 R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbf8449e128 R14: 00007fbf8449e090 R15: 00007ffc6f473938 watchdog: BUG: soft lockup - CPU#0 stuck for 287s! [syz.0.637:3097] Modules linked in: CPU: 0 PID: 3097 Comm: syz.0.637 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__rhashtable_lookup include/linux/rhashtable.h:-1 [inline] RIP: 0010:rhashtable_lookup include/linux/rhashtable.h:638 [inline] RIP: 0010:tipc_sk_lookup+0x1db/0x600 net/tipc/socket.c:3004 Code: de 8d 8c 06 f3 be ad de 44 89 f0 c1 c0 0e f7 d8 89 c2 c1 c2 0b 31 c1 29 d1 41 31 ce 89 ca c1 c2 19 41 29 d6 44 31 f0 44 89 f2 c2 10 29 d0 31 c1 89 c2 c1 c2 04 29 d1 41 31 ce c1 c1 0e 41 29 RSP: 0018:ffffc90001156880 EFLAGS: 00000286 RAX: 00000000a38a6a90 RBX: 0000000000000100 RCX: 0000000056998313 RDX: 00000000e1c642d6 RSI: 0000000096aca694 RDI: ffff888107994008 RBP: ffffc90001156970 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff5200022ad20 R12: dffffc0000000000 R13: ffff888107994004 R14: 00000000e1c642d6 R15: ffff8881079890de FS: 00007fbf82c4e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000001 CR3: 0000000110263000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: tipc_sk_rcv+0x382/0x2ca0 net/tipc/socket.c:2497 tipc_node_xmit+0x36f/0xd80 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x277/0x390 net/tipc/node.c:1783 tipc_sk_rcv+0x1a3f/0x2ca0 net/tipc/socket.c:2506 tipc_node_xmit+0x36f/0xd80 net/tipc/node.c:1703 tipc_sk_push_backlog net/tipc/socket.c:1316 [inline] tipc_sk_filter_connect net/tipc/socket.c:2260 [inline] tipc_sk_filter_rcv+0x1993/0x2fd0 net/tipc/socket.c:2369 tipc_sk_enqueue net/tipc/socket.c:2450 [inline] tipc_sk_rcv+0x787/0x2ca0 net/tipc/socket.c:2502 tipc_node_xmit+0x36f/0xd80 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x277/0x390 net/tipc/node.c:1783 tipc_sk_backlog_rcv+0x174/0x220 net/tipc/socket.c:2417 sk_backlog_rcv include/net/sock.h:1090 [inline] __release_sock+0x17c/0x3f0 net/core/sock.c:2737 release_sock net/core/sock.c:3290 [inline] sock_setsockopt+0x1a85/0x2470 net/core/sock.c:1381 __sys_setsockopt+0x261/0x470 net/socket.c:2199 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2211 x64_sys_call+0x982/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:55 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fbf84216159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbf82c4e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fbf8449e090 RCX: 00007fbf84216159 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 000000000000006c RBP: 00007fbf842ad024 R08: 0000000000000004 R09: 0000000000000000 R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbf8449e128 R14: 00007fbf8449e090 R15: 00007ffc6f473938 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 arch/x86/kernel/process.c:729