watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [syz-executor.0:22025]
Modules linked in:
CPU: 0 PID: 22025 Comm: syz-executor.0 Not tainted 6.1.138-syzkaller-1169863-gdb710ea87c32 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x591/0xc40 kernel/locking/qspinlock.c:511
Code: 0f 85 33 01 00 00 41 c6 45 00 00 41 0f b6 04 17 84 c0 0f 85 46 01 00 00 48 8b 44 24 10 c6 00 01 41 bd 00 80 ff ff eb 07 f3 90 <41> ff c5 74 5b 41 0f b6 04 16 84 c0 75 35 80 3b 00 75 eb 48 89 df
RSP: 0018:ffffc90000d8f720 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff88811dbe3798 RCX: ffffffff84f005b2
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88811dbe3798
RBP: ffffc90000d8f810 R08: dffffc0000000000 R09: ffffed1023b7c6f4
R10: ffffed1023b7c6f4 R11: 1ffff11023b7c6f3 R12: 1ffff1103ee00001
R13: 00000000ffffd6d8 R14: 1ffff11023b7c6f3 R15: 1ffff11023b7c6f3
FS:  00007f23805486c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2380548d58 CR3: 000000011e8dc000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
 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+0xd8/0xe0 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x92/0x280 net/core/sock.c:3507
 lock_sock include/net/sock.h:1769 [inline]
 tipc_sendstream+0x47/0x70 net/tipc/socket.c:1549
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 ____sys_sendmsg+0x5a9/0x990 net/socket.c:2509
 ___sys_sendmsg+0x21c/0x290 net/socket.c:2563
 __sys_sendmsg net/socket.c:2592 [inline]
 __do_sys_sendmsg net/socket.c:2601 [inline]
 __se_sys_sendmsg net/socket.c:2599 [inline]
 __x64_sys_sendmsg+0x1f0/0x2c0 net/socket.c:2599
 x64_sys_call+0x171/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f237f87dca9
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:00007f23805480c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f237f9ac050 RCX: 00007f237f87dca9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007f237f8c947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f237f9ac050 R15: 00007ffd65eb9278
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22024 Comm: syz-executor.0 Not tainted 6.1.138-syzkaller-1169863-gdb710ea87c32 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__rhashtable_lookup include/linux/rhashtable.h:594 [inline]
RIP: 0010:rhashtable_lookup include/linux/rhashtable.h:638 [inline]
RIP: 0010:tipc_sk_lookup+0x10e/0x620 net/tipc/socket.c:3001
Code: 49 8b 1e e8 14 8c 93 fc e8 af 8b 93 fc 48 8d bb c8 10 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 80 3c 30 00 <74> 05 e8 ab 34 eb fc 48 8b 93 c8 10 00 00 4c 8d ab de 10 00 00 8b
RSP: 0018:ffffc9000075e7e0 EFLAGS: 00000246
RAX: 1ffff110224bf219 RBX: ffff8881125f8000 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881125f90c8
RBP: ffffc9000075e8d0 R08: dffffc0000000000 R09: ffffed1021ab2289
R10: ffffed1021ab2289 R11: 1ffff11021ab2288 R12: ffff88810e0e1180
R13: dffffc0000000000 R14: dffffc0000000000 R15: dffffc0000000000
FS:  00007f23805696c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000011e8dc000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tipc_sk_rcv+0x419/0x2cc0 net/tipc/socket.c:2492
 tipc_node_xmit+0x257/0xd00 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1783
 tipc_sk_rcv+0x1aa3/0x2cc0 net/tipc/socket.c:2501
 tipc_node_xmit+0x257/0xd00 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+0x155f/0x2c80 net/tipc/socket.c:2364
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x7d9/0x2cc0 net/tipc/socket.c:2497
 tipc_node_xmit+0x257/0xd00 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1783
 tipc_sk_backlog_rcv+0x16f/0x1f0 net/tipc/socket.c:2412
 sk_backlog_rcv include/net/sock.h:1131 [inline]
 __release_sock+0x154/0x380 net/core/sock.c:2945
 release_sock net/core/sock.c:3519 [inline]
 sockopt_release_sock+0x95/0x1f0 net/core/sock.c:1067
 sk_setsockopt+0x1355/0x2590 net/core/sock.c:-1
 sock_setsockopt+0x5a/0x70 net/core/sock.c:1552
 __sys_setsockopt+0x270/0x4e0 net/socket.c:2274
 __do_sys_setsockopt net/socket.c:2289 [inline]
 __se_sys_setsockopt net/socket.c:2286 [inline]
 __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2286
 x64_sys_call+0x124/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:55
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f237f87dca9
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:00007f23805690c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f237f9abf80 RCX: 00007f237f87dca9
RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003
RBP: 00007f237f8c947e R08: 0000000000000004 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f237f9abf80 R15: 00007ffd65eb9278
 </TASK>