watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [syz-executor.4:10658] Modules linked in: CPU: 0 PID: 10658 Comm: syz-executor.4 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:kvm_wait+0x147/0x180 arch/x86/kernel/kvm.c:918 Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d 5b 03 f3 03 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c RSP: 0018:ffffc90000ad7680 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff9200015aed4 RCX: ffffffff8154f88f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88813839e888 RBP: ffffc90000ad7730 R08: dffffc0000000000 R09: ffffed1027073d12 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88813839e888 R14: 0000000000000003 R15: 1ffff9200015aed8 FS: 00007f253cc4d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001780 CR3: 000000013496e000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000c40a DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:597 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:368 [inline] lock_sock_nested+0x97/0x300 net/core/sock.c:3258 lock_sock include/net/sock.h:1676 [inline] tipc_sendstream+0x47/0x70 net/tipc/socket.c:1549 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2431 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2521 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2521 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f253ded9e69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f253cc4d0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f253e007f80 RCX: 00007f253ded9e69 RDX: 0000000000000000 RSI: 0000000020001780 RDI: 0000000000000006 RBP: 00007f253df2647a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f253e007f80 R15: 00007ffc20a1dde8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10667 Comm: syz-executor.4 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:bcmp+0x6/0x200 lib/string.c:975 Code: fc ff df eb bc 45 31 ed 44 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 ec 10 49 89 d6 49 89 f7 49 89 fc 48 ba RSP: 0018:ffffc900012de728 EFLAGS: 00000282 RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff8881176e62c0 RDX: 0000000000000004 RSI: ffffc900012de7c0 RDI: ffff88813839eb70 RBP: ffffc900012de730 R08: ffffffff84aeee15 R09: 0000000000000003 R10: fffff5200025bcf8 R11: dffffc0000000001 R12: fffffffffffffc08 R13: ffff88813839ebf8 R14: dffffc0000000000 R15: 0000000000000370 FS: 00007f253cc2c6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000013496e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000c40a DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: rhashtable_compare include/linux/rhashtable.h:577 [inline] __rhashtable_lookup include/linux/rhashtable.h:602 [inline] rhashtable_lookup include/linux/rhashtable.h:638 [inline] tipc_sk_lookup+0x313/0x650 net/tipc/socket.c:2999 tipc_sk_rcv+0x459/0x1b50 net/tipc/socket.c:2492 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1783 tipc_sk_rcv+0x1212/0x1b50 net/tipc/socket.c:2501 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_sk_push_backlog+0x4da/0x7b0 net/tipc/socket.c:1316 tipc_sk_conn_proto_rcv net/tipc/socket.c:1370 [inline] tipc_sk_proto_rcv+0xad0/0x1750 net/tipc/socket.c:2158 tipc_sk_filter_rcv+0x3152/0x3380 net/tipc/socket.c:2352 tipc_sk_enqueue net/tipc/socket.c:2445 [inline] tipc_sk_rcv+0x80c/0x1b50 net/tipc/socket.c:2497 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1783 tipc_sk_backlog_rcv+0x18b/0x210 net/tipc/socket.c:2412 sk_backlog_rcv include/net/sock.h:1069 [inline] __release_sock+0x145/0x410 net/core/sock.c:2719 release_sock net/core/sock.c:3270 [inline] sock_setsockopt+0x181a/0x2eb0 net/core/sock.c:1380 __sys_setsockopt+0x423/0x840 net/socket.c:2194 __do_sys_setsockopt net/socket.c:2209 [inline] __se_sys_setsockopt net/socket.c:2206 [inline] __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2206 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f253ded9e69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f253cc2c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f253e008050 RCX: 00007f253ded9e69 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000005 RBP: 00007f253df2647a R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000540 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f253e008050 R15: 00007ffc20a1dde8