RBP: 00007f796e6ca47a R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000540 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f796e7abf80 R15: 00007ffca9f94da8 watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [syz-executor.0:15803] Modules linked in: CPU: 0 PID: 15803 Comm: syz-executor.0 Not tainted 6.1.93-syzkaller-1151425-gb18f8bbc044f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:atomic_fetch_add_relaxed include/linux/atomic/atomic-instrumented.h:117 [inline] RIP: 0010:__refcount_add include/linux/refcount.h:193 [inline] RIP: 0010:__refcount_inc include/linux/refcount.h:250 [inline] RIP: 0010:refcount_inc include/linux/refcount.h:267 [inline] RIP: 0010:sock_hold include/net/sock.h:785 [inline] RIP: 0010:tipc_sk_lookup+0x4e1/0x660 net/tipc/socket.c:3003 Code: 85 72 01 00 00 48 8b 04 24 0f b7 00 49 29 c6 74 63 4d 8d be 80 00 00 00 4c 89 ff be 04 00 00 00 e8 d4 dd c1 fc bb 01 00 00 00 41 0f c1 9e 80 00 00 00 31 ff 89 de e8 5d ca 7a fc 85 db 0f 84 RSP: 0018:ffffc90003836880 EFLAGS: 00000256 RAX: 0000000000000301 RBX: 0000000000000001 RCX: ffffffff84fadc3c RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88810bffde80 RBP: ffffc90003836950 R08: dffffc0000000000 R09: ffffed10217ffbd1 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810bffe168 R13: 0000000000000004 R14: ffff88810bffde00 R15: ffff88810bffde80 FS: 00007f796f4286c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f796e702540 CR3: 00000001179db000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tipc_sk_rcv+0x45c/0x1c40 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+0x1306/0x1c40 net/tipc/socket.c:2501 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_sk_push_backlog net/tipc/socket.c:1316 [inline] tipc_sk_filter_connect net/tipc/socket.c:2255 [inline] tipc_sk_filter_rcv+0x194e/0x3390 net/tipc/socket.c:2364 tipc_sk_enqueue net/tipc/socket.c:2445 [inline] tipc_sk_rcv+0x815/0x1c40 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:1129 [inline] __release_sock+0x145/0x410 net/core/sock.c:2942 release_sock net/core/sock.c:3516 [inline] sockopt_release_sock+0x9a/0x1f0 net/core/sock.c:1067 sk_setsockopt+0x165d/0x3160 sock_setsockopt+0x59/0x70 net/core/sock.c:1549 __sys_setsockopt+0x423/0x8b0 net/socket.c:2269 __do_sys_setsockopt net/socket.c:2284 [inline] __se_sys_setsockopt net/socket.c:2281 [inline] __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2281 x64_sys_call+0x1a2/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:55 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f796e67dda9 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:00007f796f4280c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f796e7abf80 RCX: 00007f796e67dda9 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f796e6ca47a R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000540 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f796e7abf80 R15: 00007ffca9f94da8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 15802 Comm: syz-executor.0 Not tainted 6.1.93-syzkaller-1151425-gb18f8bbc044f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 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:1064 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 1b 02 31 04 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:ffffc900038ef860 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff9200071df10 RCX: ffffffff851fb82c RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88810bffde98 RBP: ffffc900038ef910 R08: dffffc0000000000 R09: ffffed10217ffbd4 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88810bffde98 R14: 0000000000000003 R15: 1ffff9200071df14 FS: 0000555555bc9480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f796f407d58 CR3: 00000001179db000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] lock_sock_nested+0x92/0x300 net/core/sock.c:3504 lock_sock include/net/sock.h:1761 [inline] tipc_release+0xc0/0x1310 net/tipc/socket.c:639 __sock_release net/socket.c:652 [inline] sock_close+0xdf/0x270 net/socket.c:1390 __fput+0x3ab/0x870 fs/file_table.c:320 ____fput+0x15/0x20 fs/file_table.c:348 task_work_run+0x24d/0x2e0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x94/0xa0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f796e67cc9a Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007ffca9f94e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f796e67cc9a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f796e7ad980 R08: 0000001b32460000 R09: 00007ffca9ff00b0 R10: 00000000000032ee R11: 0000000000000293 R12: 000000000001686f R13: ffffffffffffffff R14: 00007f796e200000 R15: 000000000001652e