[ 0.000000][ T0] Linux version 5.12.0-rc2-syzkaller (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/sda console=ttyS0 kvm-intel.nested=1 kvm-intel.unrestricted_guest=1 kvm-intel.vmm_exclusive=1 kvm-intel.fasteoi=1 kvm-intel.ept=1 kvm-intel.flexpriority=1 kvm-intel.vpid=1 kvm-intel.emulate_invalid_guest_state=1 kvm-intel.eptad=1 kvm-intel.enable_shadow_vmcs=1 kvm-intel.pml=1 kvm-intel.enable_apicv=1 root=/dev/sda1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 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 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 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] Malformed early option 'vsyscall' [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000][ T0] kvm-clock: cpu 0, msr f389001, primary cpu clock [ 0.000002][ T0] kvm-clock: using sched offset of 17731640900 cycles [ 0.015920][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.060108][ T0] tsc: Detected 2300.000 MHz processor [ 0.113949][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.124730][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.158370][ T0] found SMP MP-table at [mem 0x000f5c90-0x000f5c9f] [ 0.172327][ T0] Using GB pages for direct mapping [ 0.183966][ T0] ACPI: Early table checksum verification disabled [ 0.197060][ T0] ACPI: RSDP 0x00000000000F5AE0 000014 (v00 BOCHS ) [ 0.218617][ T0] ACPI: RSDT 0x000000007FFE1F5B 000044 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.239155][ T0] ACPI: FACP 0x000000007FFE17ED 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.258606][ T0] ACPI: DSDT 0x000000007FFDF040 0027AD (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.278006][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.288422][ T0] ACPI: APIC 0x000000007FFE18E1 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.305339][ T0] ACPI: HPET 0x000000007FFE1991 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.328658][ T0] ACPI: SRAT 0x000000007FFE19C9 000150 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.345012][ T0] ACPI: MCFG 0x000000007FFE1B19 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.362193][ T0] ACPI: SSDT 0x000000007FFE1B55 0002FE (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.379828][ T0] ACPI: NFIT 0x000000007FFE1E53 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.397157][ T0] ACPI: WAET 0x000000007FFE1F33 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001) [ 0.414563][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.425598][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.436075][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.446516][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.454126][ T0] SRAT: PXM 0 -> APIC 0x04 -> Node 0 [ 0.462612][ T0] SRAT: PXM 0 -> APIC 0x05 -> Node 0 [ 0.470134][ T0] SRAT: PXM 0 -> APIC 0x06 -> Node 0 [ 0.479400][ T0] SRAT: PXM 0 -> APIC 0x07 -> Node 0 [ 0.489562][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.500548][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff] [ 0.514442][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile [ 0.529664][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x57fffffff] hotplug [ 0.542709][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x7ffdcfff] -> [mem 0x00000000-0x7ffdcfff] [ 0.560032][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.575511][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.590948][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.603454][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.727093][ T0] Zone ranges: [ 1.733284][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.748555][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.759205][ T0] Normal empty [ 1.765047][ T0] Device empty [ 1.770567][ T0] Movable zone start for each node [ 1.779293][ T0] Early memory node ranges [ 1.789170][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.806861][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.822675][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.833954][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.833975][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.875390][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 13.818789][ T0] kasan: KernelAddressSanitizer initialized [ 13.846250][ T0] ACPI: PM-Timer IO Port: 0x608 [ 13.854436][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 13.873983][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 13.888710][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 13.908918][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 13.926535][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 13.945678][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 13.964891][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 13.983364][ T0] Using ACPI (MADT) for SMP configuration information [ 13.999644][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 14.014144][ T0] TSC deadline timer available [ 14.026843][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 14.041693][ T0] kvm-guest: KVM setup pv remote TLB flush [ 14.059925][ T0] kvm-guest: setup PV sched yield [ 14.075090][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 14.096028][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 14.112851][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 14.131064][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 14.144609][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 14.158095][ T0] Booting paravirtualized kernel on KVM [ 14.168684][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 14.450504][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2 [ 14.892636][ T0] percpu: Embedded 64 pages/cpu s223688 r8192 d30264 u1048576 [ 14.911456][ T0] kvm-guest: KVM setup async PF for cpu 0 [ 14.921391][ T0] kvm-guest: stealtime: cpu 0, msr 2ca1f440 [ 14.931008][ T0] kvm-guest: PV spinlocks enabled [ 14.939268][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 14.955421][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 14.968281][ T0] Policy zone: DMA32 [ 14.975258][ 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 no_hash_pointers root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 dummy_hcd.num=8 watchdog_thresh=55 workqueue.watchdog_thresh=140 panic_on_warn=1 earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/sda console=ttyS0 kvm-intel.nested=1 kvm-intel.unrestricted_guest=1 kvm-intel.vmm_exclusive=1 kvm-intel.fasteoi=1 kvm-intel.ept=1 kvm-intel.flexpriority=1 kvm-intel.vpid=1 kvm-intel.emulate_invali [ 15.131237][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 19.797717][ T0] Memory: 1441376K/2096620K available (135201K kernel code, 33279K rwdata, 38316K rodata, 3848K init, 17032K bss, 654988K reserved, 0K cma-reserved) [ 19.887019][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=2 [ 19.994264][ T0] Running RCU self tests [ 20.001748][ T0] rcu: Preemptible hierarchical RCU implementation. [ 20.017250][ T0] rcu: RCU lockdep checking is enabled. [ 20.029470][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 20.044888][ T0] rcu: RCU debug extended QS entry/exit. [ 20.054909][ T0] All grace periods are expedited (rcu_expedited). [ 20.062212][ T0] Trampoline variant of Tasks RCU enabled. [ 20.070310][ T0] Tracing variant of Tasks RCU enabled. [ 20.078053][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 20.201632][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 20.224711][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88807ea00000-0xffff88807ec00000 [ 20.240364][ T0] random: crng done (trusting CPU's manufacturer) [ 20.403484][ T0] Console: colour VGA+ 80x25 [ 20.417594][ T0] printk: console [ttyS0] enabled [ 20.417594][ T0] printk: console [ttyS0] enabled [ 20.435433][ T0] printk: bootconsole [earlyser0] disabled [ 20.435433][ T0] printk: bootconsole [earlyser0] disabled [ 20.454234][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 20.465532][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 20.471797][ T0] ... MAX_LOCK_DEPTH: 48 [ 20.478554][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 20.486177][ T0] ... CLASSHASH_SIZE: 4096 [ 20.494742][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 20.502566][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 20.512052][ T0] ... CHAINHASH_SIZE: 32768 [ 20.520312][ T0] memory used by lock dependency info: 6365 kB [ 20.529980][ T0] memory used for stack traces: 4224 kB [ 20.538695][ T0] per task-struct memory footprint: 1920 bytes [ 20.553727][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 20.577793][ T0] ACPI: Core revision 20210105 [ 20.592213][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 20.617004][ T0] APIC: Switch to symmetric I/O mode setup [ 20.624551][ T0] kvm-guest: setup PV IPIs [ 20.681768][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 20.694116][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 20.714670][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 20.724815][ T0] pid_max: default: 32768 minimum: 301 [ 20.750748][ T0] LSM: Security Framework initializing [ 20.754991][ T0] Yama: becoming mindful. [ 20.775704][ T0] TOMOYO Linux initialized [ 20.794720][ T0] AppArmor: AppArmor initialized [ 20.804672][ T0] LSM support for eBPF active [ 20.924880][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 20.997441][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 21.008461][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 21.024743][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 21.124038][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 21.147864][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 21.154588][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 21.165488][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 21.175267][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 21.175370][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 21.194624][ T0] MDS: Mitigation: Clear CPU buffers [ 21.248449][ T0] Freeing SMP alternatives memory: 104K [ 21.288565][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 21.338065][ T1] Running RCU-tasks wait API self tests [ 21.465434][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 21.484937][ T13] Callback from call_rcu_tasks_trace() invoked. [ 21.506909][ T1] rcu: Hierarchical SRCU implementation. [ 21.634266][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 21.661211][ T1] smp: Bringing up secondary CPUs ... [ 21.683317][ T1] x86: Booting SMP configuration: [ 21.684853][ T12] Callback from call_rcu_tasks() invoked. [ 21.694744][ T1] .... node #0, CPUs: #1 [ 0.463887][ T0] kvm-clock: cpu 1, msr f389041, secondary cpu clock [ 21.758568][ T18] kvm-guest: KVM setup async PF for cpu 1 [ 21.764563][ T18] kvm-guest: stealtime: cpu 1, msr 2cb1f440 [ 21.806700][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 21.846063][ T1] #2 [ 0.463887][ T0] kvm-clock: cpu 2, msr f389081, secondary cpu clock [ 21.923271][ T23] kvm-guest: KVM setup async PF for cpu 2 [ 21.924563][ T23] kvm-guest: stealtime: cpu 2, msr 2cc1f440 [ 21.991827][ T1] #3 [ 0.463887][ T0] kvm-clock: cpu 3, msr f3890c1, secondary cpu clock [ 22.048457][ T28] kvm-guest: KVM setup async PF for cpu 3 [ 22.054563][ T28] kvm-guest: stealtime: cpu 3, msr 2cd1f440 [ 22.089906][ T1] smp: Brought up 2 nodes, 4 CPUs [ 22.094751][ T1] smpboot: Max logical packages: 2 [ 22.104725][ T1] smpboot: Total of 4 processors activated (18400.00 BogoMIPS) [ 22.164563][ T1] devtmpfs: initialized [ 22.194339][ T1] x86/mm: Memory block size: 128MB [ 22.974712][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 22.997775][ T39] kworker/u17:0 (39) used greatest stack depth: 27304 bytes left [ 23.001810][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 23.107382][ T1] PM: RTC time: 02:37:43, date: 2021-03-12 [ 23.178241][ T1] NET: Registered protocol family 16 [ 23.193669][ T1] audit: initializing netlink subsys (disabled) [ 23.216987][ T51] audit: type=2000 audit(1615516662.527:1): state=initialized audit_enabled=0 res=1 [ 23.224563][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 23.238144][ T1] thermal_sys: Registered thermal governor 'user_space' [ 23.245046][ T8] ------------[ cut here ]------------ [ 23.274676][ T8] raw_local_irq_restore() called with IRQs enabled [ 23.285610][ T8] WARNING: CPU: 0 PID: 8 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 [ 23.294666][ T8] Modules linked in: [ 23.309108][ T8] CPU: 0 PID: 8 Comm: kworker/u17:0 Not tainted 5.12.0-rc2-syzkaller #0 [ 23.316897][ T8] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 23.324837][ T8] Workqueue: events_unbound call_usermodehelper_exec_work [ 23.334620][ T8] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 23.344618][ T8] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 8c 62 ad 04 00 74 01 c3 48 c7 c7 e0 8f 6b 89 c6 05 7b 62 ad 04 01 e8 0d d3 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 23.354627][ T8] RSP: 0000:ffffc9000039f770 EFLAGS: 00010286 [ 23.364625][ T8] RAX: 0000000000000000 RBX: ffffffff8c0e9ae8 RCX: 0000000000000000 [ 23.374618][ T8] RDX: ffff888010bf5340 RSI: ffffffff815c0d25 RDI: fffff52000073ee0 [ 23.384645][ T8] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 23.394638][ T8] R10: ffffffff815b9abe R11: 0000000000000000 R12: 0000000000000003 [ 23.404622][ T8] R13: fffffbfff181d35d R14: 0000000000000001 R15: ffff88802ca35f40 [ 23.414640][ T8] FS: 0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 [ 23.424735][ T8] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.434678][ T8] CR2: ffff888010401000 CR3: 000000000bc8e000 CR4: 0000000000150ef0 [ 23.444677][ T8] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.454642][ T8] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.464660][ T8] Call Trace: [ 23.470911][ T8] kvm_wait+0xc9/0xe0 [ 23.474651][ T8] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 23.484673][ T8] ? pv_hash+0x100/0x100 [ 23.494694][ T8] ? lock_release+0x720/0x720 [ 23.504955][ T8] do_raw_spin_lock+0x200/0x2b0 [ 23.514823][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 23.524649][ T8] ? lockdep_init_map_type+0x2c3/0x7b0 [ 23.534917][ T8] copy_fs_struct+0x1c8/0x340 [ 23.544681][ T8] ? copy_process+0x2003/0x7080 [ 23.555050][ T8] copy_process+0x4e7b/0x7080 [ 23.564968][ T8] ? wake_up_new_task+0x7c7/0xe50 [ 23.575315][ T8] ? __cleanup_sighand+0xb0/0xb0 [ 23.584806][ T8] ? is_dynamic_key+0x1a0/0x1a0 [ 23.594651][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 23.604653][ T8] ? kernel_clone+0xc4/0xab0 [ 23.614872][ T8] kernel_clone+0xe7/0xab0 [ 23.624909][ T8] ? __lock_acquire+0x16b3/0x54c0 [ 23.634793][ T8] ? create_io_thread+0x150/0x150 [ 23.644726][ T8] ? debug_object_deactivate+0x264/0x300 [ 23.654654][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 23.664652][ T8] ? umh_complete+0x90/0x90 [ 23.672237][ T8] kernel_thread+0xb5/0xf0 [ 23.674681][ T8] ? __do_sys_clone3+0x2f0/0x2f0 [ 23.684402][ T8] ? umh_complete+0x90/0x90 [ 23.684749][ T8] call_usermodehelper_exec_work+0xcc/0x180 [ 23.694666][ T8] process_one_work+0x98d/0x1600 [ 23.703925][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 23.704668][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 23.712892][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 23.714658][ T8] worker_thread+0x64c/0x1120 [ 23.725123][ T8] ? process_one_work+0x1600/0x1600 [ 23.734651][ T8] kthread+0x3b1/0x4a0 [ 23.743030][ T8] ? __kthread_bind_mask+0xc0/0xc0 [ 23.744679][ T8] ret_from_fork+0x1f/0x30 [ 23.754683][ T8] Kernel panic - not syncing: panic_on_warn set ... [ 23.764563][ T8] CPU: 0 PID: 8 Comm: kworker/u17:0 Not tainted 5.12.0-rc2-syzkaller #0 [ 23.764563][ T8] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 23.764563][ T8] Workqueue: events_unbound call_usermodehelper_exec_work [ 23.764563][ T8] Call Trace: [ 23.764563][ T8] dump_stack+0x141/0x1d7 [ 23.764563][ T8] panic+0x306/0x73d [ 23.764563][ T8] ? __warn_printk+0xf3/0xf3 [ 23.764563][ T8] ? __warn.cold+0x1a/0x44 [ 23.764563][ T8] ? warn_bogus_irq_restore+0x1d/0x20 [ 23.764563][ T8] __warn.cold+0x35/0x44 [ 23.764563][ T8] ? warn_bogus_irq_restore+0x1d/0x20 [ 23.764563][ T8] report_bug+0x1bd/0x210 [ 23.764563][ T8] handle_bug+0x3c/0x60 [ 23.764563][ T8] exc_invalid_op+0x14/0x40 [ 23.764563][ T8] asm_exc_invalid_op+0x12/0x20 [ 23.764563][ T8] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 23.764563][ T8] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 8c 62 ad 04 00 74 01 c3 48 c7 c7 e0 8f 6b 89 c6 05 7b 62 ad 04 01 e8 0d d3 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 23.764563][ T8] RSP: 0000:ffffc9000039f770 EFLAGS: 00010286 [ 23.764563][ T8] RAX: 0000000000000000 RBX: ffffffff8c0e9ae8 RCX: 0000000000000000 [ 23.764563][ T8] RDX: ffff888010bf5340 RSI: ffffffff815c0d25 RDI: fffff52000073ee0 [ 23.764563][ T8] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 23.764563][ T8] R10: ffffffff815b9abe R11: 0000000000000000 R12: 0000000000000003 [ 23.764563][ T8] R13: fffffbfff181d35d R14: 0000000000000001 R15: ffff88802ca35f40 [ 23.764563][ T8] ? wake_up_klogd.part.0+0x8e/0xd0 [ 23.764563][ T8] ? vprintk_func+0x95/0x1e0 [ 23.764563][ T8] kvm_wait+0xc9/0xe0 [ 23.764563][ T8] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 23.764563][ T8] ? pv_hash+0x100/0x100 [ 23.764563][ T8] ? lock_release+0x720/0x720 [ 23.764563][ T8] do_raw_spin_lock+0x200/0x2b0 [ 23.764563][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 23.764563][ T8] ? lockdep_init_map_type+0x2c3/0x7b0 [ 23.764563][ T8] copy_fs_struct+0x1c8/0x340 [ 23.764563][ T8] ? copy_process+0x2003/0x7080 [ 23.764563][ T8] copy_process+0x4e7b/0x7080 [ 23.764563][ T8] ? wake_up_new_task+0x7c7/0xe50 [ 23.764563][ T8] ? __cleanup_sighand+0xb0/0xb0 [ 23.764563][ T8] ? is_dynamic_key+0x1a0/0x1a0 [ 23.764563][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 23.764563][ T8] ? kernel_clone+0xc4/0xab0 [ 23.764563][ T8] kernel_clone+0xe7/0xab0 [ 23.764563][ T8] ? __lock_acquire+0x16b3/0x54c0 [ 23.764563][ T8] ? create_io_thread+0x150/0x150 [ 23.764563][ T8] ? debug_object_deactivate+0x264/0x300 [ 23.764563][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 23.764563][ T8] ? umh_complete+0x90/0x90 [ 23.764563][ T8] kernel_thread+0xb5/0xf0 [ 23.764563][ T8] ? __do_sys_clone3+0x2f0/0x2f0 [ 23.764563][ T8] ? umh_complete+0x90/0x90 [ 23.764563][ T8] call_usermodehelper_exec_work+0xcc/0x180 [ 23.764563][ T8] process_one_work+0x98d/0x1600 [ 23.764563][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 23.764563][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 23.764563][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 23.764563][ T8] worker_thread+0x64c/0x1120 [ 23.764563][ T8] ? process_one_work+0x1600/0x1600 [ 23.764563][ T8] kthread+0x3b1/0x4a0 [ 23.764563][ T8] ? __kthread_bind_mask+0xc0/0xc0 [ 23.764563][ T8] ret_from_fork+0x1f/0x30 [ 23.764563][ T8] Dumping ftrace buffer: [ 23.764563][ T8] (ftrace buffer empty) [ 23.764563][ T8] Rebooting in 1 seconds.. [ 23.764563][ T8] ACPI MEMORY or I/O RESET_REG.