WARNING in apply_wqattrs_prepare
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x0000000000001000-0x000000000009efff]
node 0: [mem 0x0000000000100000-0x0000000030000fff]
node 1: [mem 0x0000000030001000-0x000000005ffdcfff]
Initmem setup node 0 [mem 0x0000000000001000-0x0000000030000fff]
Initmem setup node 1 [mem 0x0000000030001000-0x000000005ffdcfff]
On node 0, zone DMA: 1 pages in unavailable ranges
On node 0, zone DMA: 97 pages in unavailable ranges
On node 1, zone DMA32: 35 pages in unavailable ranges
setup_percpu: NR_CPUS:8 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:2
percpu: Embedded 71 pages/cpu s250120 r8192 d32504 u2097152
kvm-guest: PV spinlocks disabled, single CPU
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 \
Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 root=/dev/sda console=ttyS0 root=/dev/sda1 loop.max_loop=1 dummy_hcd.num=1 netrom.nr_ndevs=1 rose.rose_ndevs=1
Unknown kernel command line parameters "nbds_max=32", will be passed to user space.
random: crng init done
printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
software IO TLB: area num 1.
Fallback order for Node 0: 0 1
Fallback order for Node 1: 1 0
Built 2 zonelists, mobility grouping on. Total pages: 393083
Policy zone: DMA32
mem auto-init: stack:all(zero), heap alloc:on, heap free:off
stackdepot: allocating hash table via alloc_large_system_hash
stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear)
stackdepot: allocating space for 8192 stack pools via memblock
**********************************************************
** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
** **
** This system shows unhashed kernel memory addresses **
** via the console, logs, and other interfaces. This **
** might reduce the security of your system. **
** **
** If you see this message and you are not debugging **
** the kernel, report this immediately to your system **
** administrator! **
** **
** Use hash_pointers=always to force this mode off **
** **
** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
**********************************************************
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=2
allocated 31457280 bytes of page_ext
Node 0, zone DMA: page owner found early allocated 0 pages
Node 0, zone DMA32: page owner found early allocated 4595 pages
Node 1, zone DMA32: page owner found early allocated 3207 pages
Dynamic Preempt: full
------------[ cut here ]------------
overflows_flex_counter_type(typeof(*ctx), pwq_tbl, __count)
WARNING: kernel/workqueue.c:5373 at apply_wqattrs_prepare+0xa5/0x1f0 kernel/workqueue.c:5373, CPU#0: swapper/0/0
Modules linked in:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:apply_wqattrs_prepare+0xa5/0x1f0 kernel/workqueue.c:5373
Code: d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 2b 01 00 00 8b 1b bf 05 00 00 00 89 de e8 e5 63 36 00 83 fb 06 0f 83 ce 00 00 00 90 <0f> 0b 90 48 c7 c0 60 51 19 8e 48 c1 e8 03 42 80 3c 38 00 74 0c 48
RSP: 0000:ffffffff8e407bf8 EFLAGS: 00010097
RAX: ffffffff818e826b RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffffff8e494f00 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000001 R08: ffffffff900fedb7 R09: 1ffffffff201fdb6
R10: dffffc0000000000 R11: fffffbfff201fdb7 R12: ffff88801a8949c8
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff88808caae000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88801a7a3000 CR3: 000000000e54a000 CR4: 00000000000000b0
Call Trace:
apply_workqueue_attrs_locked kernel/workqueue.c:5458 [inline]
alloc_and_link_pwqs kernel/workqueue.c:5615 [inline]
__alloc_workqueue+0xfc4/0x1e80 kernel/workqueue.c:5833
alloc_workqueue_noprof+0xe3/0x210 kernel/workqueue.c:5883
workqueue_init_early+0xaac/0xcf0 kernel/workqueue.c:7934
start_kernel+0x189/0x3d0 init/main.c:1101
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x143/0x1c0 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x147
ftruncate: Invalid argument
qemu-system-x86_64: warning: hub 0 is not connected to host network
[ 0.000000][ T0] Linux version syzkaller (syzkaller@syzkaller) (Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8) #0 SMP PREEMPT_DYNAMIC now
[ 0.000000][ T0] Command line: root=/dev/sda console=ttyS0 root=/dev/sda1 loop.max_loop=1 dummy_hcd.num=1 netrom.nr_ndevs=1 rose.rose_ndevs=1
[ 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] System RAM
[ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x00000000000a0000-0x00000000000effff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] device reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x000000005ffdcfff] System RAM
[ 0.000000][ T0] BIOS-e820: [mem 0x000000005ffdd000-0x000000005fffffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x0000000060000000-0x00000000afffffff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x00000000c0000000-0x00000000fed1bfff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x00000000fed20000-0x00000000feffbfff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x00000000ff000000-0x00000000fffbffff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] device reserved
[ 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] Hash pointers mode set to never.
[ 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 2.8 present.
[ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 0.000000][ T0] DMI: Memory slots populated: 1/1
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] last_pfn = 0x5ffdd max_arch_pfn = 0x400000000
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000014][ T0] kvm-clock: using sched offset of 2785074012 cycles
[ 0.005734][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.030055][ T0] last_pfn = 0x5ffdd max_arch_pfn = 0x400000000
[ 0.036230][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs
[ 0.045016][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.061281][ T0] found SMP MP-table at [mem 0x000f5430-0x000f543f]
[ 0.067431][ T0] Using GB pages for direct mapping
[ 0.074888][ T0] ACPI: Early table checksum verification disabled
[ 0.080787][ T0] ACPI: RSDP 0x00000000000F5270 000014 (v00 BOCHS )
[ 0.086740][ T0] ACPI: RSDT 0x000000005FFE25D7 000048 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.095491][ T0] ACPI: FACP 0x000000005FFE189E 0000F4 (v03 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.104215][ T0] ACPI: DSDT 0x000000005FFDF040 00285E (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.112975][ T0] ACPI: FACS 0x000000005FFDF000 000040
[ 0.118110][ T0] ACPI: APIC 0x000000005FFE1992 000078 (v03 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.126829][ T0] ACPI: HPET 0x000000005FFE1A0A 000038 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.135376][ T0] ACPI: SRAT 0x000000005FFE1A42 0000E0 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.143903][ T0] ACPI: MCFG 0x000000005FFE1B22 00003C (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.152529][ T0] ACPI: DMAR 0x000000005FFE1B5E 0000D0 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.161177][ T0] ACPI: SSDT 0x000000005FFE1C2E 0008A1 (v01 BOCHS NVDIMM 00000001 BXPC 00000001)
[ 0.169959][ T0] ACPI: NFIT 0x000000005FFE24CF 0000E0 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.178793][ T0] ACPI: WAET 0x000000005FFE25AF 000028 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.187879][ T0] ACPI: Reserving FACP table memory at [mem 0x5ffe189e-0x5ffe1991]
[ 0.195360][ T0] ACPI: Reserving DSDT table memory at [mem 0x5ffdf040-0x5ffe189d]
[ 0.202632][ T0] ACPI: Reserving FACS table memory at [mem 0x5ffdf000-0x5ffdf03f]
[ 0.209980][ T0] ACPI: Reserving APIC table memory at [mem 0x5ffe1992-0x5ffe1a09]
[ 0.217201][ T0] ACPI: Reserving HPET table memory at [mem 0x5ffe1a0a-0x5ffe1a41]
[ 0.224457][ T0] ACPI: Reserving SRAT table memory at [mem 0x5ffe1a42-0x5ffe1b21]
[ 0.231742][ T0] ACPI: Reserving MCFG table memory at [mem 0x5ffe1b22-0x5ffe1b5d]
[ 0.239593][ T0] ACPI: Reserving DMAR table memory at [mem 0x5ffe1b5e-0x5ffe1c2d]
[ 0.246967][ T0] ACPI: Reserving SSDT table memory at [mem 0x5ffe1c2e-0x5ffe24ce]
[ 0.254305][ T0] ACPI: Reserving NFIT table memory at [mem 0x5ffe24cf-0x5ffe25ae]
[ 0.261575][ T0] ACPI: Reserving WAET table memory at [mem 0x5ffe25af-0x5ffe25d6]
[ 0.269185][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff]
[ 0.275710][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x5fffffff]
[ 0.282296][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile
[ 0.289947][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x59fffffff] hotplug
[ 0.297246][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0x5ffdcfff] -> [mem 0x00001000-0x5ffdcfff]
[ 0.307915][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000030000fff] (768MB)
[ 0.315718][ T0] Faking node 1 at [mem 0x0000000030001000-0x000000005ffdcfff] (767MB)
[ 0.323954][ T0] NODE_DATA(0) allocated [mem 0x2fffb400-0x30000fff]
[ 0.331420][ T0] NODE_DATA(1) allocated [mem 0x5ffd6400-0x5ffdbfff]
[ 0.509381][ T0] KernelAddressSanitizer initialized (generic)
[ 0.523218][ T0] ACPI: PM-Timer IO Port: 0x608
[ 0.527685][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.534311][ T0] IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
[ 0.541605][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.548327][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.555253][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.562258][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.569418][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.576602][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 0.583481][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.588863][ T0] TSC deadline timer available
[ 0.593278][ T0] CPU topo: Max. logical packages: 1
[ 0.598374][ T0] CPU topo: Max. logical dies: 1
[ 0.603390][ T0] CPU topo: Max. dies per package: 1
[ 0.608182][ T0] CPU topo: Max. threads per core: 1
[ 0.612997][ T0] CPU topo: Num. cores per package: 1
[ 0.634222][ T0] CPU topo: Num. threads per package: 1
[ 0.642608][ T0] CPU topo: Allowing 1 present CPUs plus 0 hotplug CPUs
[ 0.651291][ T0] kvm-guest: APIC: eoi() replaced with kvm_guest_apic_eoi_write()
[ 0.660136][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.667954][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff]
[ 0.675723][ T0] [gap 0x60000000-0xafffffff] available for PCI devices
[ 0.682248][ T0] Booting paravirtualized kernel on KVM
[ 0.687535][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.794782][ T0] Zone ranges:
[ 0.798034][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.804672][ T0] DMA32 [mem 0x0000000001000000-0x000000005ffdcfff]
[ 0.811445][ T0] Normal empty
[ 0.814845][ T0] Device empty
[ 0.818351][ T0] Movable zone start for each node
[ 0.822964][ T0] Early memory node ranges
[ 0.827012][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.833723][ T0] node 0: [mem 0x0000000000100000-0x0000000030000fff]
[ 0.840319][ T0] node 1: [mem 0x0000000030001000-0x000000005ffdcfff]
[ 0.848333][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000030000fff]
[ 0.855841][ T0] Initmem setup node 1 [mem 0x0000000030001000-0x000000005ffdcfff]
[ 0.863593][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.870126][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.900646][ T0] On node 1, zone DMA32: 35 pages in unavailable ranges
[ 0.907452][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:2
[ 0.917563][ T0] percpu: Embedded 71 pages/cpu s250120 r8192 d32504 u2097152
[ 0.928373][ T0] kvm-guest: PV spinlocks disabled, single CPU
[ 0.934151][ 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 \
[ 1.017573][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 root=/dev/sda console=ttyS0 root=/dev/sda1 loop.max_loop=1 dummy_hcd.num=1 netrom.nr_ndevs=1 rose.rose_ndevs=1
[ 1.040824][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space.
[ 1.050108][ T0] random: crng init done
[ 1.053917][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
[ 1.063595][ T0] software IO TLB: area num 1.
[ 1.126991][ T0] Fallback order for Node 0: 0 1
[ 1.127099][ T0] Fallback order for Node 1: 1 0
[ 1.127115][ T0] Built 2 zonelists, mobility grouping on. Total pages: 393083
[ 1.140401][ T0] Policy zone: DMA32
[ 1.148011][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[ 1.153620][ T0] stackdepot: allocating hash table via alloc_large_system_hash
[ 1.162466][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear)
[ 1.177644][ T0] stackdepot: allocating space for 8192 stack pools via memblock
[ 1.330995][ T0] **********************************************************
[ 1.336782][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 1.342354][ T0] ** **
[ 1.347592][ T0] ** This system shows unhashed kernel memory addresses **
[ 1.352987][ T0] ** via the console, logs, and other interfaces. This **
[ 1.358608][ T0] ** might reduce the security of your system. **
[ 1.363871][ T0] ** **
[ 1.368933][ T0] ** If you see this message and you are not debugging **
[ 1.374305][ T0] ** the kernel, report this immediately to your system **
[ 1.379603][ T0] ** administrator! **
[ 1.384964][ T0] ** **
[ 1.390446][ T0] ** Use hash_pointers=always to force this mode off **
[ 1.395945][ T0] ** **
[ 1.401380][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 1.407018][ T0] **********************************************************
[ 1.416252][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=2
[ 1.460747][ T0] allocated 31457280 bytes of page_ext
[ 1.465062][ T0] Node 0, zone DMA: page owner found early allocated 0 pages
[ 1.475955][ T0] Node 0, zone DMA32: page owner found early allocated 4595 pages
[ 1.484081][ T0] Node 1, zone DMA32: page owner found early allocated 3207 pages
[ 1.495791][ T0] Dynamic Preempt: full
[ 1.500321][ T0] ------------[ cut here ]------------
[ 1.504471][ T0] overflows_flex_counter_type(typeof(*ctx), pwq_tbl, __count)
[ 1.504484][ T0] WARNING: kernel/workqueue.c:5373 at apply_wqattrs_prepare+0xa5/0x1f0, CPU#0: swapper/0/0
[ 1.518429][ T0] Modules linked in:
[ 1.521340][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full)
[ 1.528144][ T0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 1.535895][ T0] RIP: 0010:apply_wqattrs_prepare+0xa5/0x1f0
[ 1.540480][ T0] Code: d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 2b 01 00 00 8b 1b bf 05 00 00 00 89 de e8 e5 63 36 00 83 fb 06 0f 83 ce 00 00 00 90 <0f> 0b 90 48 c7 c0 60 51 19 8e 48 c1 e8 03 42 80 3c 38 00 74 0c 48
[ 1.555128][ T0] RSP: 0000:ffffffff8e407bf8 EFLAGS: 00010097
[ 1.559626][ T0] RAX: ffffffff818e826b RBX: 0000000000000000 RCX: 0000000000000000
[ 1.565583][ T0] RDX: ffffffff8e494f00 RSI: 0000000000000000 RDI: 0000000000000005
[ 1.571473][ T0] RBP: 0000000000000001 R08: ffffffff900fedb7 R09: 1ffffffff201fdb6
[ 1.577443][ T0] R10: dffffc0000000000 R11: fffffbfff201fdb7 R12: ffff88801a8949c8
[ 1.583453][ T0] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 1.589391][ T0] FS: 0000000000000000(0000) GS:ffff88808caae000(0000) knlGS:0000000000000000
[ 1.596183][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.601142][ T0] CR2: ffff88801a7a3000 CR3: 000000000e54a000 CR4: 00000000000000b0
[ 1.607089][ T0] Call Trace:
[ 1.609508][ T0]
[ 1.611656][ T0] __alloc_workqueue+0xfc4/0x1e80
[ 1.615359][ T0] alloc_workqueue_noprof+0xe3/0x210
[ 1.619255][ T0] ? is_dynamic_key+0xd6/0x1c0
[ 1.622847][ T0] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 1.627133][ T0] ? __kmalloc_cache_noprof+0x31c/0x660
[ 1.631161][ T0] ? workqueue_init_early+0x89b/0xcf0
[ 1.635045][ T0] ? __kmalloc_cache_noprof+0x15b/0x660
[ 1.639115][ T0] workqueue_init_early+0xaac/0xcf0
[ 1.642904][ T0] ? __cpuhp_setup_state+0x46/0x60
[ 1.646674][ T0] ? __pfx_workqueue_init_early+0x10/0x10
[ 1.650937][ T0] ? register_trace_event+0x3f7/0x4b0
[ 1.654862][ T0] start_kernel+0x189/0x3d0
[ 1.658194][ T0] x86_64_start_reservations+0x24/0x30
[ 1.662123][ T0] x86_64_start_kernel+0x143/0x1c0
[ 1.665638][ T0] common_startup_64+0x13e/0x147
[ 1.669335][ T0]
[ 1.671565][ T0] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 1.676883][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full)
[ 1.683528][ T0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 1.691064][ T0] Call Trace:
[ 1.693419][ T0]
[ 1.695555][ T0] vpanic+0x56c/0xa60
[ 1.698434][ T0] ? __pfx__printk+0x10/0x10
[ 1.701587][ T0] ? __pfx_vpanic+0x10/0x10
[ 1.704990][ T0] ? is_bpf_text_address+0x292/0x2b0
[ 1.708910][ T0] ? is_bpf_text_address+0x26/0x2b0
[ 1.712773][ T0] panic+0xc5/0xd0
[ 1.715482][ T0] ? __pfx_panic+0x10/0x10
[ 1.718759][ T0] ? common_startup_64+0x13e/0x147
[ 1.722534][ T0] __warn+0x315/0x4f0
[ 1.725448][ T0] ? apply_wqattrs_prepare+0xa5/0x1f0
[ 1.729464][ T0] ? apply_wqattrs_prepare+0xa5/0x1f0
[ 1.733375][ T0] __report_bug+0x29a/0x540
[ 1.736706][ T0] ? apply_wqattrs_prepare+0xa5/0x1f0
[ 1.740668][ T0] ? __pfx___report_bug+0x10/0x10
[ 1.744384][ T0] ? __mutex_unlock_slowpath+0x1bd/0x7d0
[ 1.748629][ T0] ? pcpu_chunk_relocate+0x1df/0x470
[ 1.752519][ T0] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1.756982][ T0] ? __native_queued_spin_unlock+0xd/0x50
[ 1.761204][ T0] ? apply_wqattrs_prepare+0xa5/0x1f0
[ 1.765176][ T0] report_bug+0x16a/0x220
[ 1.768363][ T0] ? apply_wqattrs_prepare+0xa5/0x1f0
[ 1.774409][ T0] ? apply_wqattrs_prepare+0xa7/0x1f0
[ 1.778515][ T0] handle_bug+0x98/0x200
[ 1.781634][ T0] exc_invalid_op+0x1a/0x50
[ 1.784967][ T0] asm_exc_invalid_op+0x1a/0x20
[ 1.788509][ T0] RIP: 0010:apply_wqattrs_prepare+0xa5/0x1f0
[ 1.793050][ T0] Code: d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 2b 01 00 00 8b 1b bf 05 00 00 00 89 de e8 e5 63 36 00 83 fb 06 0f 83 ce 00 00 00 90 <0f> 0b 90 48 c7 c0 60 51 19 8e 48 c1 e8 03 42 80 3c 38 00 74 0c 48
[ 1.807847][ T0] RSP: 0000:ffffffff8e407bf8 EFLAGS: 00010097
[ 1.812303][ T0] RAX: ffffffff818e826b RBX: 0000000000000000 RCX: 0000000000000000
[ 1.818169][ T0] RDX: ffffffff8e494f00 RSI: 0000000000000000 RDI: 0000000000000005
[ 1.823972][ T0] RBP: 0000000000000001 R08: ffffffff900fedb7 R09: 1ffffffff201fdb6
[ 1.829908][ T0] R10: dffffc0000000000 R11: fffffbfff201fdb7 R12: ffff88801a8949c8
[ 1.835755][ T0] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 1.841672][ T0] ? apply_wqattrs_prepare+0x9b/0x1f0
[ 1.845649][ T0] ? apply_wqattrs_prepare+0x9b/0x1f0
[ 1.849574][ T0] __alloc_workqueue+0xfc4/0x1e80
[ 1.853182][ T0] alloc_workqueue_noprof+0xe3/0x210
[ 1.857072][ T0] ? is_dynamic_key+0xd6/0x1c0
[ 1.860612][ T0] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 1.864982][ T0] ? __kmalloc_cache_noprof+0x31c/0x660
[ 1.869067][ T0] ? workqueue_init_early+0x89b/0xcf0
[ 1.872967][ T0] ? __kmalloc_cache_noprof+0x15b/0x660
[ 1.877018][ T0] workqueue_init_early+0xaac/0xcf0
[ 1.880811][ T0] ? __cpuhp_setup_state+0x46/0x60
[ 1.884528][ T0] ? __pfx_workqueue_init_early+0x10/0x10
[ 1.888731][ T0] ? register_trace_event+0x3f7/0x4b0
[ 1.892635][ T0] start_kernel+0x189/0x3d0
[ 1.895875][ T0] x86_64_start_reservations+0x24/0x30
[ 1.899817][ T0] x86_64_start_kernel+0x143/0x1c0
[ 1.903693][ T0] common_startup_64+0x13e/0x147
[ 1.907583][ T0]
[ 1.910315][ T0] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build627842457=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.24.4'
GOWORK=''
PKG_CONFIG='pkg-config'
git status (err=)
HEAD detached at d34966d146f5
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
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=d34966d146f584d390b49f213d1fccd59548dc6d -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250221-172117'" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d34966d146f584d390b49f213d1fccd59548dc6d\"
/usr/bin/ld: /tmp/ccu4YEnL.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking