RBP: 00007fb1e5b9503b R08: 0000000000000004 R09: 0000000000000000
R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb1e5d86128 R14: 00007fb1e5d86090 R15: 00007ffeca17ae18
watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [syz.0.68:650]
Modules linked in:
CPU: 0 PID: 650 Comm: syz.0.68 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:check_region_inline mm/kasan/generic.c:-1 [inline]
RIP: 0010:kasan_check_range+0xc/0x2a0 mm/kasan/generic.c:189
Code: 32 06 03 31 c0 5d c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc b0 01 48 85 f6 0f 84 c0 01 00 00 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 49 89 f8 49 01 f0 0f 82 1d 02
RSP: 0018:ffffc90000d068c0 EFLAGS: 00000202
RAX: 0000000000000401 RBX: ffff88811a3d2388 RCX: ffffffff84b490e1
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88811a3d2388
RBP: ffffc90000d068d0 R08: ffff88811a3d2383 R09: 1ffff1102347a470
R10: dffffc0000000000 R11: ffffed102347a471 R12: dffffc0000000000
R13: 1ffff920001a0d1c R14: ffffffff8498b41c R15: 00000000cacbea89
FS: 00007fb1e45366c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb1e44b2d58 CR3: 000000012efff000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
queued_spin_trylock include/asm-generic/qspinlock.h:63 [inline]
do_raw_spin_trylock include/linux/spinlock.h:206 [inline]
__raw_spin_trylock_bh include/linux/spinlock_api_smp.h:182 [inline]
_raw_spin_trylock_bh+0x81/0x150 kernel/locking/spinlock.c:146
spin_trylock_bh include/linux/spinlock.h:424 [inline]
tipc_sk_rcv+0x3ac/0x2ca0 net/tipc/socket.c:2502
tipc_node_xmit+0x36f/0xd80 net/tipc/node.c:1708
tipc_node_xmit_skb net/tipc/node.c:1773 [inline]
tipc_node_distr_xmit+0x277/0x390 net/tipc/node.c:1788
tipc_sk_rcv+0x1a3f/0x2ca0 net/tipc/socket.c:2507
tipc_node_xmit+0x36f/0xd80 net/tipc/node.c:1708
tipc_sk_push_backlog net/tipc/socket.c:1317 [inline]
tipc_sk_filter_connect net/tipc/socket.c:2261 [inline]
tipc_sk_filter_rcv+0x1993/0x2fd0 net/tipc/socket.c:2370
tipc_sk_enqueue net/tipc/socket.c:2451 [inline]
tipc_sk_rcv+0x787/0x2ca0 net/tipc/socket.c:2503
tipc_node_xmit+0x36f/0xd80 net/tipc/node.c:1708
tipc_node_xmit_skb net/tipc/node.c:1773 [inline]
tipc_node_distr_xmit+0x277/0x390 net/tipc/node.c:1788
tipc_sk_backlog_rcv+0x174/0x220 net/tipc/socket.c:2418
sk_backlog_rcv include/net/sock.h:1090 [inline]
__release_sock+0x17c/0x3f0 net/core/sock.c:2736
release_sock net/core/sock.c:3289 [inline]
sock_setsockopt+0x1a85/0x2470 net/core/sock.c:1380
__sys_setsockopt+0x261/0x470 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+0x982/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:55
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb1e5afe159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb1e4536028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fb1e5d86090 RCX: 00007fb1e5afe159
RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000007
RBP: 00007fb1e5b9503b R08: 0000000000000004 R09: 0000000000000000
R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb1e5d86128 R14: 00007fb1e5d86090 R15: 00007ffeca17ae18
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 648 Comm: syz.0.68 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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+0x105/0x150 arch/x86/kernel/kvm.c:918
Code: 1b d6 03 f4 eb 87 fa 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3f 0f b6 07 40 38 f0 75 10 66 90 0f 00 2d 2d 1b d6 03 fb f4 5e ff ff ff fb e9 58 ff ff ff e8 eb a8 7d 03 89 f9 80 e1 07 38
RSP: 0018:ffffc90000c37920 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff88811a3d2388 RCX: ffffffff8150081c
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff88811a3d2388
RBP: ffffc90000c379b0 R08: ffff88811a3d2388 R09: 1ffff1102347a471
R10: dffffc0000000000 R11: ffffed102347a472 R12: ffff88823ff525c0
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92000186f24
FS: 00005555635d9500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555726b54e8 CR3: 000000012efff000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 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+0x605/0x9b0 kernel/locking/qspinlock.c:508
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock include/linux/spinlock.h:188 [inline]
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
_raw_spin_lock_bh+0xe4/0xf0 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:369 [inline]
lock_sock_nested+0x95/0x2a0 net/core/sock.c:3277
lock_sock include/net/sock.h:1743 [inline]
tipc_release+0xb3/0x1610 net/tipc/socket.c:640
__sock_release net/socket.c:649 [inline]
sock_close+0xb8/0x200 net/socket.c:1336
__fput+0x22b/0x900 fs/file_table.c:311
____fput+0x15/0x20 fs/file_table.c:339
task_work_run+0x127/0x190 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb1e5afe159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffeca17af78 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fb1e5d87da0 RCX: 00007fb1e5afe159
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fb1e5d87da0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007fb1e5d87cb0 R11: 0000000000000246 R12: 0000000000007d62
R13: 00007fb1e5d85fac R14: 0000000000007afa R15: 00007fb1e5d85fa0