watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.5.2653:9832] Modules linked in: CPU: 0 PID: 9832 Comm: syz.5.2653 Tainted: G W 5.10.240-syzkaller-00213-gad9a98ef27a4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:rht_obj include/linux/rhashtable.h:-1 [inline] RIP: 0010:rhashtable_lookup include/linux/rhashtable.h:640 [inline] RIP: 0010:tipc_sk_lookup+0x4bc/0x5f0 net/tipc/socket.c:2997 Code: fd 4c 89 e6 e9 0d fd ff ff 4d 85 ed 74 7c 49 bc 00 00 00 00 00 fc ff df 48 8b 44 24 20 42 0f b6 04 20 84 c0 0f 85 0e 01 00 00 <48> 8b 44 24 08 0f b7 00 49 29 c5 74 67 49 8d 9d 80 00 00 00 48 89 RSP: 0018:ffffc90001dae8e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 000000000000035c RCX: 0000000000000000 RDX: ffff888119648000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90001dae9d0 R08: 0000000000000004 R09: 0000000001dae903 R10: fffff520003b5d2c R11: 1ffff920003b5d2c R12: dffffc0000000000 R13: ffff88811259b0e8 R14: 0000000000000000 R15: fffffffffffffc18 FS: 00007f26745bb6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f26745baf98 CR3: 000000011d142000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: tipc_sk_rcv+0x3eb/0x1ef0 net/tipc/socket.c:2488 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1754 tipc_sk_rcv+0x19b9/0x1ef0 net/tipc/socket.c:2497 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674 tipc_sk_push_backlog net/tipc/socket.c:1306 [inline] tipc_sk_filter_connect net/tipc/socket.c:2253 [inline] tipc_sk_filter_rcv+0x1581/0x3850 net/tipc/socket.c:2362 tipc_sk_enqueue net/tipc/socket.c:2442 [inline] tipc_sk_rcv+0x7cc/0x1ef0 net/tipc/socket.c:2493 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1754 tipc_sk_backlog_rcv+0x16f/0x1f0 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1052 [inline] __release_sock+0x146/0x360 net/core/sock.c:2583 release_sock net/core/sock.c:3134 [inline] sock_setsockopt+0x125e/0x2350 net/core/sock.c:1257 __sys_setsockopt+0x265/0x460 net/socket.c:2142 __do_sys_setsockopt net/socket.c:2157 [inline] __se_sys_setsockopt net/socket.c:2154 [inline] __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2154 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f2675f739a9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f26745bb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f267619b080 RCX: 00007f2675f739a9 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000005 RBP: 00007f2675ff5d69 R08: 0000000000000004 R09: 0000000000000000 R10: 0000200000000540 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f267619b080 R15: 00007ffe9583b958 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:60 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0x12/0x20 arch/x86/kernel/process.c:717