watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor.0:1414] Modules linked in: CPU: 0 PID: 1414 Comm: syz-executor.0 Not tainted 5.15.176-syzkaller-1078759-g829d9f138569 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x5ba/0xc40 kernel/locking/qspinlock.c:508 Code: 00 00 49 89 dc c6 03 00 48 8b 44 24 10 0f b6 04 10 84 c0 0f 85 48 01 00 00 48 8b 44 24 08 c6 00 01 bb 00 80 ff ff eb 06 f3 90 c3 74 5e 41 0f b6 44 15 00 84 c0 75 36 41 80 3f 00 75 ea 4c 89 RSP: 0018:ffffc9000319f9a0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000ffffecb7 RCX: ffffffff81553c6f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888110730a88 RBP: ffffc9000319fa90 R08: dffffc0000000000 R09: ffffed10220e6152 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7038ad4 R13: 1ffff110220e6151 R14: 1ffff1103ee00001 R15: ffff888110730a88 FS: 0000555589a14480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f06bc293d58 CR3: 0000000107dea000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:3272 lock_sock include/net/sock.h:1684 [inline] tipc_release+0xc0/0x1300 net/tipc/socket.c:639 __sock_release net/socket.c:649 [inline] sock_close+0xdf/0x270 net/socket.c:1336 __fput+0x228/0x8c0 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f06bc731c9a 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:00007ffd20635bf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f06bc731c9a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f06bc862980 R08: 0000001b31e60000 R09: 00007ffd207850b0 R10: 000000000000117e R11: 0000000000000293 R12: 000000000000cee8 R13: ffffffffffffffff R14: 00007f06bc2b5000 R15: 000000000000cba7 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1415 Comm: syz-executor.0 Not tainted 5.15.176-syzkaller-1078759-g829d9f138569 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:queued_spin_trylock include/asm-generic/qspinlock.h:63 [inline] RIP: 0010:do_raw_spin_trylock include/linux/spinlock.h:205 [inline] RIP: 0010:__raw_spin_trylock_bh include/linux/spinlock_api_smp.h:182 [inline] RIP: 0010:_raw_spin_trylock_bh+0xa4/0x190 kernel/locking/spinlock.c:146 Code: fc 4c 89 e8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 9d 00 00 00 45 8b 75 00 48 c1 eb 03 42 0f b6 04 3b 84 c0 0f 85 a6 00 00 00 <44> 89 74 24 20 45 85 f6 75 3d 4c 89 ef be 04 00 00 00 e8 95 e9 ca RSP: 0018:ffffc900031d6940 EFLAGS: 00000297 RAX: 0000000000000004 RBX: 1ffff9200063ad2c RCX: ffffc900031d6903 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888110730a88 RBP: ffffc900031d69d0 R08: dffffc0000000000 R09: ffffed10220e6152 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200063ad28 R13: ffff888110730a88 R14: 0000000000040103 R15: dffffc0000000000 FS: 00007f06bc2b46c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c0 CR3: 0000000107dea000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_trylock_bh include/linux/spinlock.h:423 [inline] tipc_sk_rcv+0x480/0x1b50 net/tipc/socket.c:2496 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 net/tipc/socket.c:1316 [inline] tipc_sk_filter_connect net/tipc/socket.c:2255 [inline] tipc_sk_filter_rcv+0x194e/0x3380 net/tipc/socket.c:2364 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:1071 [inline] __release_sock+0x145/0x410 net/core/sock.c:2733 release_sock net/core/sock.c:3284 [inline] sock_setsockopt+0x1831/0x2f30 net/core/sock.c:1383 __sys_setsockopt+0x423/0x840 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+0x1a2/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:55 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f06bc732da9 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:00007f06bc2b40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f06bc860f80 RCX: 00007f06bc732da9 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f06bc77f47a R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000540 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f06bc860f80 R15: 00007ffd20635b28