WARNING in enable_work
------------[ cut here ]------------
workqueue: work disable count underflowed
WARNING: CPU: 1 PID: 22 at kernel/workqueue.c:4317 work_offqd_enable kernel/workqueue.c:4317 [inline]
WARNING: CPU: 1 PID: 22 at kernel/workqueue.c:4317 enable_work+0x343/0x350 kernel/workqueue.c:4488
Modules linked in:
CPU: 1 UID: 0 PID: 22 Comm: cpuhp/1 Not tainted 6.13.0-rc6-syzkaller-g9d89551994a4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:work_offqd_enable kernel/workqueue.c:4317 [inline]
RIP: 0010:enable_work+0x343/0x350 kernel/workqueue.c:4488
Code: 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 b0 2a 37 00 c6 05 26 3c f0 0d 01 48 c7 c7 80 d1 89 8b e8 7d 29 f8 ff <0f> 0b e9 5c ff ff ff e8 21 32 ea 09 90 90 90 90 90 90 90 90 90 90
RSP: 0000:ffffc900001c7bc0 EFLAGS: 00010046
RAX: d846d72fe2bb7900 RBX: 0000000000000000 RCX: ffff88801cea3c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001c7c88 R08: ffffffff815f1dbe R09: 1ffffffff1bb9c78
R10: dffffc0000000000 R11: fffffbfff1bb9c79 R12: 1ffff92000038f7c
R13: 1ffff92000038f84 R14: 001fffffffc00001 R15: ffff8880b89387b0
FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000dd34000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vmstat_cpu_online+0xb7/0xe0 mm/vmstat.c:2151
cpuhp_invoke_callback+0x4af/0x840 kernel/cpu.c:194
cpuhp_thread_fun+0x418/0x810 kernel/cpu.c:1102
smpboot_thread_fn+0x540/0xa20 kernel/smpboot.c:164
kthread+0x2ec/0x380 kernel/kthread.c:389
ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.0.136" "pwd"]: exit status 255
ssh: connect to host 10.128.0.136 port 22: Connection timed out
Pseudo-terminal will not be allocated because stdin is not a terminal.
Warning: Permanently added '[us-central1-ssh-serialport.googleapis.com]:9600' (RSA) to the list of known hosts.
serialport: Connected to syzkaller.us-central1-f.ci2-linux-6-1-kasan-test-job-parallel-0 port 1 (session ID: 6c07fb06517c60052c6b5ccc7c0f8867c2325341059b380428a711e2d920e2e7, active connections: 1).
SeaBIOS (version 1.8.2-google)
Total RAM Size = 0x0000000200000000 = 8192 MiB
CPUs found: 2 Max CPUs supported: 2
SeaBIOS (version 1.8.2-google)
Machine UUID 05a9026a-1ce2-bbcd-7a46-b6c513dabb22
found virtio-scsi at 0:3
virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
drive 0x000f2790: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Sending Seabios boot VM event.
Booting from Hard Disk 0...
[ 0.000000][ T0] Linux version 6.13.0-rc6-syzkaller-g9d89551994a4 (syzkaller@syzkaller) (Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40) #0 SMP PREEMPT_DYNAMIC now
[ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0
[ 0.000000][ T0] KERNEL supported cpus:
[ 0.000000][ T0] Intel GenuineIntel
[ 0.000000][ T0] AMD AuthenticAMD
[ 0.000000][ T0] BIOS-provided physical RAM map:
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable
[ 0.000000][ T0] printk: legacy bootconsole [earlyser0] enabled
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** This system shows unhashed kernel memory addresses **
[ 0.000000][ T0] ** via the console, logs, and other interfaces. This **
[ 0.000000][ T0] ** might reduce the security of your system. **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** If you see this message and you are not debugging **
[ 0.000000][ T0] ** the kernel, report this immediately to your system **
[ 0.000000][ T0] ** administrator! **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] Malformed early option 'vsyscall'
[ 0.000000][ T0] nopcid: PCID feature disabled
[ 0.000000][ T0] NX (Execute Disable) protection: active
[ 0.000000][ T0] APIC: Static calls initialized
[ 0.000000][ T0] SMBIOS 2.4 present.
[ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 0.000000][ T0] DMI: Memory slots populated: 1/1
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000005][ T0] kvm-clock: using sched offset of 4249541248 cycles
[ 0.000864][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.003272][ T0] tsc: Detected 2199.998 MHz processor
[ 0.008196][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000
[ 0.009115][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs
[ 0.010353][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.011451][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000
[ 0.018751][ T0] found SMP MP-table at [mem 0x000f2a50-0x000f2a5f]
[ 0.019654][ T0] Using GB pages for direct mapping
[ 0.024301][ T0] ACPI: Early table checksum verification disabled
[ 0.025261][ T0] ACPI: RSDP 0x00000000000F27D0 000014 (v00 Google)
[ 0.026131][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001)
[ 0.027484][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001)
[ 0.028906][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001)
[ 0.030269][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.031053][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.031996][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001)
[ 0.033241][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001)
[ 0.035023][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001)
[ 0.037407][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001)
[ 0.039272][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423]
[ 0.040767][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323]
[ 0.042545][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.043825][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.045141][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27]
[ 0.046497][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25]
[ 0.047918][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf]
[ 0.049300][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57]
[ 0.050764][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff]
[ 0.052353][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff]
[ 0.053864][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff]
[ 0.055189][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff]
[ 0.057681][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff]
[ 0.060247][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB)
[ 0.062359][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB)
[ 0.064343][ T0] NODE_DATA(0) allocated [mem 0x13fffb540-0x140000fff]
[ 0.066605][ T0] NODE_DATA(1) allocated [mem 0x23fff7540-0x23fffcfff]
[ 0.106609][ T0] Zone ranges:
[ 0.107279][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.108455][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.109777][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff]
[ 0.110710][ T0] Device empty
[ 0.111357][ T0] Movable zone start for each node
[ 0.112975][ T0] Early memory node ranges
[ 0.113929][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.115338][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff]
[ 0.117123][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff]
[ 0.118603][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff]
[ 0.120205][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff]
[ 0.121815][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff]
[ 0.124102][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.125715][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.188448][ T0] On node 0, zone Normal: 3 pages in unavailable ranges
[ 0.566542][ T0] kasan: KernelAddressSanitizer initialized
[ 0.568173][ T0] ACPI: PM-Timer IO Port: 0xb008
[ 0.569945][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.571709][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.573745][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.574878][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.576561][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.578199][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.579788][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 0.581391][ T0] CPU topo: Max. logical packages: 1
[ 0.582466][ T0] CPU topo: Max. logical dies: 1
[ 0.583977][ T0] CPU topo: Max. dies per package: 1
[ 0.585457][ T0] CPU topo: Max. threads per core: 2
[ 0.586596][ T0] CPU topo: Num. cores per package: 1
[ 0.588023][ T0] CPU topo: Num. threads per package: 2
[ 0.589287][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs
[ 0.590604][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.592533][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.594078][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.595554][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.597236][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff]
[ 0.599309][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff]
[ 0.600901][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff]
[ 0.602244][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices
[ 0.603577][ T0] Booting paravirtualized kernel on KVM
[ 0.604705][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.698755][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2
[ 0.701622][ T0] percpu: Embedded 74 pages/cpu s264264 r8192 d30648 u1048576
[ 0.703140][ T0] kvm-guest: PV spinlocks enabled
[ 0.704023][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.705504][ T0] Kernel command line: earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 rcupdate.rcu_cpu_stall_cputime=1 no_hash_pointers page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off coredump_filter=0xffff root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=64 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=32 rose.rose_ndevs=32 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=32 max_loop=32 nbds_max=32 panic_on_warn
[ 0.707477][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl nbds_max=32 BOOT_IMAGE=/boot/bzImage", will be passed to user space.
[ 0.728200][ T0] random: crng init done
[ 0.729755][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
[ 0.731590][ T0] Fallback order for Node 0: 0 1
[ 0.731632][ T0] Fallback order for Node 1: 1 0
[ 0.731646][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051
[ 0.735139][ T0] Policy zone: Normal
[ 0.736760][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[ 0.738288][ T0] stackdepot: allocating hash table via alloc_large_system_hash
[ 0.739978][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear)
[ 0.746312][ T0] software IO TLB: area num 2.
[ 1.749129][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2
[ 1.872332][ T0] allocated 167772160 bytes of page_ext
[ 1.873661][ T0] Node 0, zone DMA: page owner found early allocated 0 pages
[ 1.890069][ T0] Node 0, zone DMA32: page owner found early allocated 21222 pages
[ 1.903291][ T0] Node 0, zone Normal: page owner found early allocated 0 pages
[ 1.914242][ T0] Node 1, zone Normal: page owner found early allocated 19843 pages
[ 1.916691][ T0] Kernel/User page tables isolation: enabled
[ 1.919724][ T0] Dynamic Preempt: full
[ 1.921825][ T0] Running RCU self tests
[ 1.922464][ T0] Running RCU synchronous self tests
[ 1.923583][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 1.924766][ T0] rcu: RCU lockdep checking is enabled.
[ 1.925740][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 1.926980][ T0] rcu: RCU callback double-/use-after-free debug is enabled.
[ 1.929253][ T0] rcu: RCU debug extended QS entry/exit.
[ 1.930970][ T0] All grace periods are expedited (rcu_expedited).
[ 1.932577][ T0] Trampoline variant of Tasks RCU enabled.
[ 1.934183][ T0] Tracing variant of Tasks RCU enabled.
[ 1.935735][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 1.937263][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 1.939001][ T0] Running RCU synchronous self tests
[ 1.940143][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
[ 1.941674][ T0] RCU Tasks Trace: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
[ 2.040389][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16
[ 2.043124][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 2.045935][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000
[ 2.049780][ T0] Console: colour VGA+ 80x25
[ 2.050595][ T0] printk: legacy console [ttyS0] enabled
[ 2.050595][ T0] printk: legacy console [ttyS0] enabled
[ 2.052619][ T0] printk: legacy bootconsole [earlyser0] disabled
[ 2.052619][ T0] printk: legacy bootconsole [earlyser0] disabled
[ 2.054898][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 2.056681][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 2.058192][ T0] ... MAX_LOCK_DEPTH: 48
[ 2.059586][ T0] ... MAX_LOCKDEP_KEYS: 8192
[ 2.060586][ T0] ... CLASSHASH_SIZE: 4096
[ 2.061399][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576
[ 2.062898][ T0] ... MAX_LOCKDEP_CHAINS: 1048576
[ 2.063875][ T0] ... CHAINHASH_SIZE: 524288
[ 2.064858][ T0] memory used by lock dependency info: 106625 kB
[ 2.066396][ T0] memory used for stack traces: 8320 kB
[ 2.067701][ T0] per task-struct memory footprint: 1920 bytes
[ 2.069736][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl
[ 2.071956][ T0] ACPI: Core revision 20240827
[ 2.073959][ T0] APIC: Switch to symmetric I/O mode setup
[ 2.075814][ T0] x2apic enabled
[ 2.080553][ T0] APIC: Switched APIC routing to: physical x2apic
[ 2.087671][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1
[ 2.089638][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns
[ 2.092377][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980)
[ 2.102966][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8
[ 2.104081][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4
[ 2.105907][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[ 2.107500][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit
[ 2.109901][ T0] Spectre V2 : Mitigation: IBRS
[ 2.110988][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[ 2.112377][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT
[ 2.114450][ T0] RETBleed: Mitigation: IBRS
[ 2.116018][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
[ 2.119037][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl
[ 2.122463][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl
[ 2.125264][ T0] MDS: Mitigation: Clear CPU buffers
[ 2.126855][ T0] TAA: Mitigation: Clear CPU buffers
[ 2.128217][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode
[ 2.130103][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 2.132383][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 2.134490][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 2.135935][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 2.137647][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[ 2.476078][ T0] Freeing SMP alternatives memory: 128K
[ 2.477331][ T0] pid_max: default: 32768 minimum: 301
[ 2.479465][ T0] LSM: initializing lsm=lockdown,capability,landlock,yama,safesetid,tomoyo,apparmor,bpf,ima,evm
[ 2.482930][ T0] landlock: Up and running.
[ 2.483908][ T0] Yama: becoming mindful.
[ 2.485238][ T0] TOMOYO Linux initialized
[ 2.487155][ T0] AppArmor: AppArmor initialized
[ 2.490222][ T0] LSM support for eBPF active
[ 2.497699][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage)
[ 2.502652][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage)
[ 2.506054][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc)
[ 2.508342][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc)
[ 2.515643][ T0] Running RCU synchronous self tests
[ 2.517624][ T0] Running RCU synchronous self tests
[ 2.640503][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0)
[ 2.642360][ T1] Running RCU Tasks wait API self tests
[ 2.742872][ T1] Running RCU Tasks Trace wait API self tests
[ 2.744745][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only.
[ 2.747255][ T1] signal: max sigframe size: 1776
[ 2.749225][ T1] rcu: Hierarchical SRCU implementation.
[ 2.750345][ T1] rcu: Max phase no-delay instances is 1000.
[ 2.753258][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level
[ 2.761459][ T1] NMI watchdog: Perf NMI watchdog permanently disabled
[ 2.762522][ T15] Callback from call_rcu_tasks_trace() invoked.
[ 2.765150][ T1] smp: Bringing up secondary CPUs ...
[ 2.773307][ T1] smpboot: x86: Booting SMP configuration:
[ 2.774863][ T1] .... node #0, CPUs: #1
[ 2.775278][ T22] ------------[ cut here ]------------
[ 2.775278][ T22] workqueue: work disable count underflowed
[ 2.775288][ T22] WARNING: CPU: 1 PID: 22 at kernel/workqueue.c:4317 enable_work+0x343/0x350
[ 2.778323][ T22] Modules linked in:
[ 2.778957][ T22] CPU: 1 UID: 0 PID: 22 Comm: cpuhp/1 Not tainted 6.13.0-rc6-syzkaller-g9d89551994a4 #0
[ 2.780413][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 2.781996][ T22] RIP: 0010:enable_work+0x343/0x350
[ 2.782360][ T22] Code: 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 b0 2a 37 00 c6 05 26 3c f0 0d 01 48 c7 c7 80 d1 89 8b e8 7d 29 f8 ff <0f> 0b e9 5c ff ff ff e8 21 32 ea 09 90 90 90 90 90 90 90 90 90 90
[ 2.782360][ T22] RSP: 0000:ffffc900001c7bc0 EFLAGS: 00010046
[ 2.782360][ T22] RAX: d846d72fe2bb7900 RBX: 0000000000000000 RCX: ffff88801cea3c00
[ 2.782360][ T22] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 2.782360][ T22] RBP: ffffc900001c7c88 R08: ffffffff815f1dbe R09: 1ffffffff1bb9c78
[ 2.782360][ T22] R10: dffffc0000000000 R11: fffffbfff1bb9c79 R12: 1ffff92000038f7c
[ 2.782360][ T22] R13: 1ffff92000038f84 R14: 001fffffffc00001 R15: ffff8880b89387b0
[ 2.782360][ T22] FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
[ 2.782360][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.782360][ T22] CR2: 0000000000000000 CR3: 000000000dd34000 CR4: 00000000003506f0
[ 2.782360][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2.782360][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2.782360][ T22] Call Trace:
[ 2.782360][ T22]
[ 2.782360][ T22] ? __warn+0x161/0x4c0
[ 2.782360][ T22] ? enable_work+0x343/0x350
[ 2.782360][ T22] ? report_bug+0x2af/0x500
[ 2.782360][ T22] ? enable_work+0x343/0x350
[ 2.782360][ T22] ? handle_bug+0x60/0x90
[ 2.782360][ T22] ? exc_invalid_op+0x16/0x50
[ 2.782360][ T22] ? asm_exc_invalid_op+0x16/0x20
[ 2.782360][ T22] ? __warn_printk+0x28e/0x360
[ 2.782360][ T22] ? enable_work+0x343/0x350
[ 2.782360][ T22] ? __pfx_enable_work+0x10/0x10
[ 2.782360][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.782360][ T22] ? rcu_is_watching+0x11/0xb0
[ 2.782360][ T22] vmstat_cpu_online+0xb7/0xe0
[ 2.782360][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.782360][ T22] cpuhp_invoke_callback+0x4af/0x840
[ 2.782360][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.782360][ T22] cpuhp_thread_fun+0x418/0x810
[ 2.782360][ T22] ? cpuhp_thread_fun+0x12c/0x810
[ 2.782360][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.782360][ T22] ? _raw_spin_unlock_irqrestore+0xd9/0x140
[ 2.782360][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.782360][ T22] smpboot_thread_fn+0x540/0xa20
[ 2.782360][ T22] ? smpboot_thread_fn+0x4a/0xa20
[ 2.782360][ T22] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 2.782360][ T22] kthread+0x2ec/0x380
[ 2.782360][ T22] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 2.782360][ T22] ? __pfx_kthread+0x10/0x10
[ 2.782360][ T22] ret_from_fork+0x47/0x80
[ 2.782360][ T22] ? __pfx_kthread+0x10/0x10
[ 2.782360][ T22] ret_from_fork_asm+0x1a/0x30
[ 2.782360][ T22]
[ 2.782360][ T22] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 2.782360][ T22] CPU: 1 UID: 0 PID: 22 Comm: cpuhp/1 Not tainted 6.13.0-rc6-syzkaller-g9d89551994a4 #0
[ 2.782360][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 2.782360][ T22] Call Trace:
[ 2.782360][ T22]
[ 2.782360][ T22] dump_stack_lvl+0x23d/0x360
[ 2.782360][ T22] ? __pfx_dump_stack_lvl+0x10/0x10
[ 2.782360][ T22] ? __pfx__printk+0x10/0x10
[ 2.782360][ T22] ? _printk+0xd1/0x120
[ 2.782360][ T22] ? __init_begin+0x41000/0x41000
[ 2.782360][ T22] ? vscnprintf+0x59/0x80
[ 2.782360][ T22] panic+0x345/0x880
[ 2.782360][ T22] ? __warn+0x170/0x4c0
[ 2.782360][ T22] ? __pfx_panic+0x10/0x10
[ 2.782360][ T22] ? ret_from_fork_asm+0x1a/0x30
[ 2.782360][ T22] __warn+0x33a/0x4c0
[ 2.782360][ T22] ? enable_work+0x343/0x350
[ 2.782360][ T22] report_bug+0x2af/0x500
[ 2.782360][ T22] ? enable_work+0x343/0x350
[ 2.782360][ T22] handle_bug+0x60/0x90
[ 2.782360][ T22] exc_invalid_op+0x16/0x50
[ 2.782360][ T22] asm_exc_invalid_op+0x16/0x20
[ 2.782360][ T22] RIP: 0010:enable_work+0x343/0x350
[ 2.782360][ T22] Code: 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 b0 2a 37 00 c6 05 26 3c f0 0d 01 48 c7 c7 80 d1 89 8b e8 7d 29 f8 ff <0f> 0b e9 5c ff ff ff e8 21 32 ea 09 90 90 90 90 90 90 90 90 90 90
[ 2.782360][ T22] RSP: 0000:ffffc900001c7bc0 EFLAGS: 00010046
[ 2.782360][ T22] RAX: d846d72fe2bb7900 RBX: 0000000000000000 RCX: ffff88801cea3c00
[ 2.782360][ T22] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 2.782360][ T22] RBP: ffffc900001c7c88 R08: ffffffff815f1dbe R09: 1ffffffff1bb9c78
[ 2.782360][ T22] R10: dffffc0000000000 R11: fffffbfff1bb9c79 R12: 1ffff92000038f7c
[ 2.782360][ T22] R13: 1ffff92000038f84 R14: 001fffffffc00001 R15: ffff8880b89387b0
[ 2.782360][ T22] ? __warn_printk+0x28e/0x360
[ 2.782360][ T22] ? __pfx_enable_work+0x10/0x10
[ 2.782360][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.782360][ T22] ? rcu_is_watching+0x11/0xb0
[ 2.782360][ T22] vmstat_cpu_online+0xb7/0xe0
[ 2.782360][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.782360][ T22] cpuhp_invoke_callback+0x4af/0x840
[ 2.782360][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.782360][ T22] cpuhp_thread_fun+0x418/0x810
[ 2.782360][ T22] ? cpuhp_thread_fun+0x12c/0x810
[ 2.782360][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.782360][ T22] ? _raw_spin_unlock_irqrestore+0xd9/0x140
[ 2.782360][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.782360][ T22] smpboot_thread_fn+0x540/0xa20
[ 2.782360][ T22] ? smpboot_thread_fn+0x4a/0xa20
[ 2.782360][ T22] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 2.782360][ T22] kthread+0x2ec/0x380
[ 2.782360][ T22] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 2.782360][ T22] ? __pfx_kthread+0x10/0x10
[ 2.782360][ T22] ret_from_fork+0x47/0x80
[ 2.782360][ T22] ? __pfx_kthread+0x10/0x10
[ 2.782360][ T22] ret_from_fork_asm+0x1a/0x30
[ 2.782360][ T22]
[ 2.782360][ T22] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.7'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1309895248=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 4b25d554e
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=4b25d554e5643186ba6a09429089ac0275f7573b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241120-173125'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"4b25d554e5643186ba6a09429089ac0275f7573b\"
/usr/bin/ld: /tmp/ccV1EhOl.o: in function `test_cover_filter()':
executor.cc:(.text+0x142db): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccV1EhOl.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking