[ 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 f393001, primary cpu clock [ 0.000002][ T0] kvm-clock: using sched offset of 6830277825 cycles [ 0.011102][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.042669][ T0] tsc: Detected 2300.000 MHz processor [ 0.070586][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.083117][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.116462][ T0] found SMP MP-table at [mem 0x000f5c80-0x000f5c8f] [ 0.129587][ T0] Using GB pages for direct mapping [ 0.140897][ T0] ACPI: Early table checksum verification disabled [ 0.152543][ T0] ACPI: RSDP 0x00000000000F5AD0 000014 (v00 BOCHS ) [ 0.164615][ T0] ACPI: RSDT 0x000000007FFE1F5B 000044 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.181832][ T0] ACPI: FACP 0x000000007FFE17ED 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.197820][ T0] ACPI: DSDT 0x000000007FFDF040 0027AD (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.214412][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.224753][ T0] ACPI: APIC 0x000000007FFE18E1 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.239960][ T0] ACPI: HPET 0x000000007FFE1991 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.254078][ T0] ACPI: SRAT 0x000000007FFE19C9 000150 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.268855][ T0] ACPI: MCFG 0x000000007FFE1B19 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.282125][ T0] ACPI: SSDT 0x000000007FFE1B55 0002FE (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.298469][ T0] ACPI: NFIT 0x000000007FFE1E53 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.311267][ T0] ACPI: WAET 0x000000007FFE1F33 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001) [ 0.325068][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.332206][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.338584][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.345815][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.352505][ T0] SRAT: PXM 0 -> APIC 0x04 -> Node 0 [ 0.360006][ T0] SRAT: PXM 0 -> APIC 0x05 -> Node 0 [ 0.366970][ T0] SRAT: PXM 0 -> APIC 0x06 -> Node 0 [ 0.373130][ T0] SRAT: PXM 0 -> APIC 0x07 -> Node 0 [ 0.380136][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.388775][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff] [ 0.397411][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile [ 0.408415][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x57fffffff] hotplug [ 0.419225][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x7ffdcfff] -> [mem 0x00000000-0x7ffdcfff] [ 0.434664][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.446881][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.459855][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.471367][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.031017][ T0] Zone ranges: [ 1.036694][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.047556][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.059501][ T0] Normal empty [ 1.065811][ T0] Device empty [ 1.071374][ T0] Movable zone start for each node [ 1.078995][ T0] Early memory node ranges [ 1.086335][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.098141][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.108555][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.120440][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.120552][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.162681][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 6.370665][ T0] kasan: KernelAddressSanitizer initialized [ 6.385735][ T0] ACPI: PM-Timer IO Port: 0x608 [ 6.392440][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 6.402515][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 6.413739][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 6.423745][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 6.433051][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 6.443160][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 6.453133][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 6.463808][ T0] Using ACPI (MADT) for SMP configuration information [ 6.472842][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 6.480915][ T0] TSC deadline timer available [ 6.487373][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 6.498380][ T0] kvm-guest: KVM setup pv remote TLB flush [ 6.510595][ T0] kvm-guest: setup PV sched yield [ 6.519377][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 6.533977][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 6.546028][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 6.559437][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 6.573302][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 6.583866][ T0] Booting paravirtualized kernel on KVM [ 6.593833][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 6.708330][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2 [ 6.836315][ T0] percpu: Embedded 64 pages/cpu s223880 r8192 d30072 u1048576 [ 6.848572][ T0] kvm-guest: KVM setup async PF for cpu 0 [ 6.859677][ T0] kvm-guest: stealtime: cpu 0, msr 2ca1f440 [ 6.870907][ T0] kvm-guest: PV spinlocks enabled [ 6.879393][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 6.894447][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 6.905047][ T0] Policy zone: DMA32 [ 6.910567][ 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 [ 6.944945][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 8.683170][ T0] Memory: 1441376K/2096620K available (135201K kernel code, 33271K rwdata, 38268K rodata, 3868K init, 16992K bss, 654988K reserved, 0K cma-reserved) [ 8.728259][ T0] Running RCU self tests [ 8.735729][ T0] rcu: Preemptible hierarchical RCU implementation. [ 8.746543][ T0] rcu: RCU lockdep checking is enabled. [ 8.756455][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 8.767900][ T0] rcu: RCU debug extended QS entry/exit. [ 8.776766][ T0] All grace periods are expedited (rcu_expedited). [ 8.787301][ T0] Trampoline variant of Tasks RCU enabled. [ 8.796824][ T0] Tracing variant of Tasks RCU enabled. [ 8.806430][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 8.886068][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 8.900231][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88807ea00000-0xffff88807ec00000 [ 8.918778][ T0] random: crng done (trusting CPU's manufacturer) [ 9.037873][ T0] Console: colour VGA+ 80x25 [ 9.046192][ T0] printk: console [ttyS0] enabled [ 9.046192][ T0] printk: console [ttyS0] enabled [ 9.061932][ T0] printk: bootconsole [earlyser0] disabled [ 9.061932][ T0] printk: bootconsole [earlyser0] disabled [ 9.078887][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 9.091509][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 9.098266][ T0] ... MAX_LOCK_DEPTH: 48 [ 9.104903][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 9.111887][ T0] ... CLASSHASH_SIZE: 4096 [ 9.120634][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 9.129562][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 9.137706][ T0] ... CHAINHASH_SIZE: 32768 [ 9.147091][ T0] memory used by lock dependency info: 6365 kB [ 9.158014][ T0] memory used for stack traces: 4224 kB [ 9.166655][ T0] per task-struct memory footprint: 1920 bytes [ 9.179251][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 9.199143][ T0] ACPI: Core revision 20210105 [ 9.212056][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 9.231774][ T0] APIC: Switch to symmetric I/O mode setup [ 9.241948][ T0] kvm-guest: setup PV IPIs [ 9.278192][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 9.290396][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 9.308543][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 9.318661][ T0] pid_max: default: 32768 minimum: 301 [ 9.333294][ T0] LSM: Security Framework initializing [ 9.339756][ T0] Yama: becoming mindful. [ 9.349787][ T0] TOMOYO Linux initialized [ 9.358733][ T0] SELinux: Initializing. [ 9.393987][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 9.411300][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 9.419324][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 9.428978][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 9.465175][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 9.478611][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 9.488546][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 9.498672][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 9.508687][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 9.508826][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 9.528606][ T0] MDS: Mitigation: Clear CPU buffers [ 9.541426][ T0] Freeing SMP alternatives memory: 104K [ 9.556139][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 9.576136][ T1] Running RCU-tasks wait API self tests [ 9.699264][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 9.712200][ T1] rcu: Hierarchical SRCU implementation. [ 9.718764][ T13] Callback from call_rcu_tasks_trace() invoked. [ 9.745643][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 9.755753][ T1] smp: Bringing up secondary CPUs ... [ 9.781607][ T1] x86: Booting SMP configuration: [ 9.788687][ T1] .... node #0, CPUs: #1 [ 0.389104][ T0] kvm-clock: cpu 1, msr f393041, secondary cpu clock [ 9.825610][ T18] kvm-guest: KVM setup async PF for cpu 1 [ 9.828526][ T18] kvm-guest: stealtime: cpu 1, msr 2cb1f440 [ 9.849723][ 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. [ 9.879168][ T1] #2 [ 0.389104][ T0] kvm-clock: cpu 2, msr f393081, secondary cpu clock [ 9.932502][ T23] kvm-guest: KVM setup async PF for cpu 2 [ 9.938526][ T23] kvm-guest: stealtime: cpu 2, msr 2cc1f440 [ 9.958619][ T12] Callback from call_rcu_tasks() invoked. [ 9.989319][ T1] #3 [ 0.389104][ T0] kvm-clock: cpu 3, msr f3930c1, secondary cpu clock [ 10.034872][ T28] kvm-guest: KVM setup async PF for cpu 3 [ 10.037120][ T28] kvm-guest: stealtime: cpu 3, msr 2cd1f440 [ 10.049833][ T1] smp: Brought up 2 nodes, 4 CPUs [ 10.058658][ T1] smpboot: Max logical packages: 2 [ 10.066251][ T1] smpboot: Total of 4 processors activated (18400.00 BogoMIPS) [ 10.084226][ T1] devtmpfs: initialized [ 10.092546][ T1] x86/mm: Memory block size: 128MB [ 10.171935][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 10.171935][ T37] kworker/u17:0 (37) used greatest stack depth: 27520 bytes left [ 10.192275][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 10.208606][ T1] PM: RTC time: 21:17:16, date: 2021-03-13 [ 10.251431][ T48] kworker/u17:0 (48) used greatest stack depth: 27512 bytes left [ 10.258726][ T46] ------------[ cut here ]------------ [ 10.278662][ T46] raw_local_irq_restore() called with IRQs enabled [ 10.283036][ T1] NET: Registered protocol family 16 [ 10.298722][ T46] WARNING: CPU: 3 PID: 46 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 [ 10.323899][ T1] audit: initializing netlink subsys (disabled) [ 10.328702][ T46] Modules linked in: [ 10.328702][ T46] CPU: 3 PID: 46 Comm: kworker/u17:0 Not tainted 5.12.0-rc2-syzkaller #0 [ 10.368644][ T46] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 10.368452][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 10.378792][ T46] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 10.399549][ T51] audit: type=2000 audit(1615670236.329:1): state=initialized audit_enabled=0 res=1 [ 10.400141][ T1] thermal_sys: Registered thermal governor 'user_space' [ 10.397452][ T46] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d b1 e8 ab 04 00 74 01 c3 48 c7 c7 60 79 6b 89 c6 05 a0 e8 ab 04 01 e8 05 be be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 10.448650][ T46] RSP: 0000:ffffc900006e7c58 EFLAGS: 00010282 [ 10.458639][ T46] RAX: 0000000000000000 RBX: ffffffff8bdf1440 RCX: 0000000000000000 [ 10.478671][ T46] RDX: ffff888011740000 RSI: ffffffff815b4475 RDI: fffff520000dcf7d [ 10.488627][ T46] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 10.498691][ T46] R10: ffffffff815ad1de R11: 0000000000000000 R12: 0000000000000003 [ 10.518919][ T46] R13: fffffbfff17be288 R14: 0000000000000001 R15: ffff88802cd36000 [ 10.528656][ T46] FS: 0000000000000000(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 [ 10.548709][ T46] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.558722][ T46] CR2: 0000000000000000 CR3: 000000000bc8e000 CR4: 0000000000150ee0 [ 10.568662][ T46] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.578734][ T46] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.598676][ T46] Call Trace: [ 10.604452][ T46] kvm_wait+0xc9/0xe0 [ 10.608615][ T46] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 10.618709][ T46] ? pv_hash+0x100/0x100 [ 10.628601][ T46] ? lock_release+0x720/0x720 [ 10.628618][ T46] do_raw_spin_lock+0x200/0x2b0 [ 10.638754][ T46] ? rwlock_bug.part.0+0x90/0x90 [ 10.648631][ T46] pgd_free+0x1e/0x1a0 [ 10.658673][ T46] __mmdrop+0xcb/0x400 [ 10.658699][ T46] __mmput+0x3b4/0x470 [ 10.668600][ T46] mmput+0x58/0x60 [ 10.668661][ T46] free_bprm+0x65/0x2e0 [ 10.678756][ T46] kernel_execve+0x380/0x460 [ 10.688619][ T46] call_usermodehelper_exec_async+0x2de/0x580 [ 10.698737][ T46] ? umh_complete+0x90/0x90 [ 10.708626][ T46] ret_from_fork+0x1f/0x30 [ 10.718708][ T46] Kernel panic - not syncing: panic_on_warn set ... [ 10.728796][ T46] CPU: 3 PID: 46 Comm: kworker/u17:0 Not tainted 5.12.0-rc2-syzkaller #0 [ 10.748615][ T46] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 10.768609][ T46] Call Trace: [ 10.768721][ T46] dump_stack+0x141/0x1d7 [ 10.778763][ T46] panic+0x306/0x73d [ 10.788597][ T46] ? __warn_printk+0xf3/0xf3 [ 10.788753][ T46] ? __warn.cold+0x1a/0x44 [ 10.798754][ T46] ? warn_bogus_irq_restore+0x1d/0x20 [ 10.808716][ T46] __warn.cold+0x35/0x44 [ 10.818733][ T46] ? wake_up_klogd.part.0+0x8e/0xd0 [ 10.828605][ T46] ? warn_bogus_irq_restore+0x1d/0x20 [ 10.828728][ T46] report_bug+0x1bd/0x210 [ 10.848659][ T46] handle_bug+0x3c/0x60 [ 10.848719][ T46] exc_invalid_op+0x14/0x40 [ 10.858737][ T46] asm_exc_invalid_op+0x12/0x20 [ 10.868629][ T46] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 10.878760][ T46] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d b1 e8 ab 04 00 74 01 c3 48 c7 c7 60 79 6b 89 c6 05 a0 e8 ab 04 01 e8 05 be be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 10.908893][ T46] RSP: 0000:ffffc900006e7c58 EFLAGS: 00010282 [ 10.918693][ T46] RAX: 0000000000000000 RBX: ffffffff8bdf1440 RCX: 0000000000000000 [ 10.928739][ T46] RDX: ffff888011740000 RSI: ffffffff815b4475 RDI: fffff520000dcf7d [ 10.948604][ T46] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 10.958920][ T46] R10: ffffffff815ad1de R11: 0000000000000000 R12: 0000000000000003 [ 10.978731][ T46] R13: fffffbfff17be288 R14: 0000000000000001 R15: ffff88802cd36000 [ 10.998708][ T46] ? wake_up_klogd.part.0+0x8e/0xd0 [ 11.008588][ T46] ? vprintk_func+0x95/0x1e0 [ 11.018858][ T46] ? warn_bogus_irq_restore+0x1d/0x20 [ 11.028612][ T46] kvm_wait+0xc9/0xe0 [ 11.028700][ T46] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 11.048631][ T46] ? pv_hash+0x100/0x100 [ 11.048800][ T46] ? lock_release+0x720/0x720 [ 11.058815][ T46] do_raw_spin_lock+0x200/0x2b0 [ 11.068583][ T46] ? rwlock_bug.part.0+0x90/0x90 [ 11.078683][ T46] pgd_free+0x1e/0x1a0 [ 11.078683][ T46] __mmdrop+0xcb/0x400 [ 11.088787][ T46] __mmput+0x3b4/0x470 [ 11.098686][ T46] mmput+0x58/0x60 [ 11.098686][ T46] free_bprm+0x65/0x2e0 [ 11.108753][ T46] kernel_execve+0x380/0x460 [ 11.118717][ T46] call_usermodehelper_exec_async+0x2de/0x580 [ 11.128732][ T46] ? umh_complete+0x90/0x90 [ 11.138682][ T46] ret_from_fork+0x1f/0x30 [ 11.148602][ T46] Dumping ftrace buffer: [ 11.148602][ T46] (ftrace buffer empty) [ 11.148602][ T46] Rebooting in 1 seconds.. [ 11.148602][ T46] ACPI MEMORY or I/O RESET_REG.