watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.5.2543:8108]
CPU#1 Utilization every 22s during lockup:
#1: 100% system, 0% softirq, 1% hardirq, 0% idle
#2: 100% system, 1% softirq, 1% hardirq, 0% idle
#3: 100% system, 1% softirq, 1% hardirq, 0% idle
#4: 100% system, 1% softirq, 1% hardirq, 0% idle
#5: 100% system, 0% softirq, 1% hardirq, 0% idle
Modules linked in:
CPU: 1 UID: 0 PID: 8108 Comm: syz.5.2543 Not tainted syzkaller #0 ec67a0b9c3f9090985a335a00964337a606b4ed6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:106
Code: cc cc cc cc cc cc cc b8 75 5c 4f de 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d f3 9b 48 00 55 48 89 e5 fb f4 <5d> e9 07 60 02 00 cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc900031dc1b0 EFLAGS: 000002d3
RAX: ffffffff814428e1 RBX: 0000000000000003 RCX: ffff888115161300
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000003
RBP: ffffc900031dc1b0 R08: ffff88811cf09888 R09: 1ffff110239e1311
R10: dffffc0000000000 R11: ffffed10239e1312 R12: dffffc0000000000
R13: 0000000000000200 R14: 0000000000000003 R15: 1ffff9200063b838
FS: 00007fb2b83366c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb2b8314ff8 CR3: 00000001166fc000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
arch_safe_halt arch/x86/include/asm/paravirt.h:112 [inline]
kvm_wait+0x1c6/0x230 arch/x86/kernel/kvm.c:1081
pv_wait arch/x86/include/asm/paravirt.h:596 [inline]
pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:466 [inline]
__pv_queued_spin_lock_slowpath+0x8e0/0xe90 kernel/locking/qspinlock.c:508
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [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 include/linux/spinlock_api_smp.h:134 [inline]
_raw_spin_lock+0x115/0x120 kernel/locking/spinlock.c:154
>::lock rust/kernel/sync/lock.rs:142 [inline]
::push_work drivers/android/binder/process.rs:730 [inline]
::push_work_if_looper+0x202/0x620 drivers/android/binder/thread.rs:667
::set_notification_done drivers/android/binder/node.rs:1044 [inline]
::dead_binder_done drivers/android/binder/process.rs:1312 [inline]
::write+0x3aa3/0xa690 drivers/android/binder/thread.rs:1505
::write_read drivers/android/binder/thread.rs:1608 [inline]
::ioctl_write_read drivers/android/binder/process.rs:1609 [inline]
::ioctl drivers/android/binder/process.rs:1674 [inline]
rust_binder_main::rust_binder_ioctl+0x1077/0x5da0 drivers/android/binder/rust_binder_main.rs:449
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0x135/0x1b0 fs/ioctl.c:893
__x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893
x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fb2b739c629
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:00007fb2b8336028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb2b7615fa0 RCX: 00007fb2b739c629
RDX: 0000200000000040 RSI: 00000000c0306201 RDI: 0000000000000003
RBP: 00007fb2b7432b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb2b7616038 R14: 00007fb2b7615fa0 R15: 00007ffdb1fc6098
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8107 Comm: syz.5.2543 Not tainted syzkaller #0 ec67a0b9c3f9090985a335a00964337a606b4ed6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:106
Code: cc cc cc cc cc cc cc b8 75 5c 4f de 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d f3 9b 48 00 55 48 89 e5 fb f4 <5d> e9 07 60 02 00 cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc90002fc79d0 EFLAGS: 000002d3
RAX: ffffffff814428e1 RBX: 0000000000000001 RCX: ffff88810b3e0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90002fc79d0 R08: ffff8881f6e50a94 R09: 1ffff1103edca152
R10: dffffc0000000000 R11: ffffed103edca153 R12: dffffc0000000000
R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920005f8f3c
FS: 00005555759bb500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c7dde9d40 CR3: 00000001166fc000 CR4: 00000000003526b0
Call Trace:
arch_safe_halt arch/x86/include/asm/paravirt.h:112 [inline]
kvm_wait+0x1c6/0x230 arch/x86/kernel/kvm.c:1081
pv_wait arch/x86/include/asm/paravirt.h:596 [inline]
pv_wait_node kernel/locking/qspinlock_paravirt.h:322 [inline]
__pv_queued_spin_lock_slowpath+0x483/0xe90 kernel/locking/qspinlock.c:473
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [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 include/linux/spinlock_api_smp.h:134 [inline]
_raw_spin_lock+0x115/0x120 kernel/locking/spinlock.c:154
>::lock rust/kernel/sync/lock.rs:142 [inline]
::flush drivers/android/binder/process.rs:1649 [inline]
rust_binder_main::rust_binder_flush+0xff/0x3b0 drivers/android/binder/rust_binder_main.rs:497
filp_flush fs/open.c:1552 [inline]
filp_close+0xc0/0x160 fs/open.c:1565
__range_close fs/file.c:710 [inline]
__close_range+0x529/0x6e0 fs/file.c:767
__do_sys_close_range fs/open.c:1618 [inline]
__se_sys_close_range fs/open.c:1615 [inline]
__x64_sys_close_range+0x7e/0x90 fs/open.c:1615
x64_sys_call+0x1686/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:437
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fb2b739c629
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:00007ffdb1fc61f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 00007fb2b7617da0 RCX: 00007fb2b739c629
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fb2b7617da0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007fb2b7617cb0 R11: 0000000000000246 R12: 00000000000566c3
R13: 00007fb2b7615fac R14: 00000000000563b6 R15: 00007ffdb1fc6300