[ 0.000000][ T0] Linux version 5.8.0-rc2-next-20200625-syzkaller (syzkaller@syzkaller) (gcc (GCC) 10.1.0-syz 20200507, GNU ld (GNU Binutils for Ubuntu) 2.26.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Centaur CentaurHauls [ 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 0x0000000000100000-0x00000000bfffcfff] 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 0x0000000100000000-0x000000021fffffff] usable [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 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] SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000007][ T0] kvm-clock: cpu 0, msr be7a001, primary cpu clock [ 0.000007][ T0] kvm-clock: using sched offset of 4312432843 cycles [ 0.001339][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.008735][ T0] tsc: Detected 2300.000 MHz processor [ 0.012242][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.014245][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.016410][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.026031][ T0] found SMP MP-table at [mem 0x000f2370-0x000f237f] [ 0.029671][ T0] check: Scanning 1 areas for low memory corruption [ 0.031873][ T0] Using GB pages for direct mapping [ 0.035410][ T0] ACPI: Early table checksum verification disabled [ 0.037841][ T0] ACPI: RSDP 0x00000000000F20F0 000014 (v00 Google) [ 0.040365][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.043642][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.045687][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.047155][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.048171][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.049400][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.050742][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.052026][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.053549][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.055197][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.056026][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.057166][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.058168][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.059395][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.060421][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.061949][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.063530][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.064734][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.066345][ T0] NODE_DATA(0) allocated [mem 0x12fffb000-0x12fffffff] [ 0.067983][ T0] NODE_DATA(1) allocated [mem 0x21fff8000-0x21fffcfff] [ 0.121347][ T0] Zone ranges: [ 0.121879][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.123199][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.124208][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.126250][ T0] Device empty [ 0.128076][ T0] Movable zone start for each node [ 0.128735][ T0] Early memory node ranges [ 0.129337][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.131043][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.132017][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.133197][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.134476][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.134484][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.166380][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.628156][ T0] kasan: KernelAddressSanitizer initialized [ 0.630486][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.631702][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.632866][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.634246][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.635548][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.637881][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.639728][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.641775][ T0] Using ACPI (MADT) for SMP configuration information [ 0.643128][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.644191][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.645443][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.647393][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.650149][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.651584][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.653557][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.656564][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.657813][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.659170][ T0] Booting paravirtualized kernel on KVM [ 0.661245][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.720389][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.723188][ T0] percpu: Embedded 65 pages/cpu s226760 r8192 d31288 u1048576 [ 0.724455][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.725641][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1935238 [ 0.726704][ T0] Policy zone: Normal [ 0.727607][ T0] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 0.743093][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.650704][ T0] Memory: 6461436K/7863916K available (116743K kernel code, 17455K rwdata, 21460K rodata, 2768K init, 24276K bss, 1402480K reserved, 0K cma-reserved) [ 1.659112][ T0] Running RCU self tests [ 1.659834][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.660859][ T0] rcu: RCU lockdep checking is enabled. [ 1.661603][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.662640][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.663571][ T0] rcu: RCU debug extended QS entry/exit. [ 1.664323][ T0] Trampoline variant of Tasks RCU enabled. [ 1.665160][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.666961][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.676954][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.680573][ T0] random: get_random_bytes called from start_kernel+0x67f/0xa06 with crng_init=0 [ 1.684531][ T0] Console: colour VGA+ 80x25 [ 1.687750][ T0] printk: console [ttyS0] enabled [ 1.687750][ T0] printk: console [ttyS0] enabled [ 1.689767][ T0] printk: bootconsole [earlyser0] disabled [ 1.689767][ T0] printk: bootconsole [earlyser0] disabled [ 1.692897][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.696015][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.696762][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.699730][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.700744][ T0] ... CLASSHASH_SIZE: 4096 [ 1.703786][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.704693][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.705604][ T0] ... CHAINHASH_SIZE: 32768 [ 1.706355][ T0] memory used by lock dependency info: 6301 kB [ 1.707594][ T0] memory used for stack traces: 4224 kB [ 1.708753][ T0] per task-struct memory footprint: 1920 bytes [ 1.711155][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.712992][ T0] ACPI: Core revision 20200528 [ 1.715608][ T0] APIC: Switch to symmetric I/O mode setup [ 1.717233][ T0] x2apic enabled [ 1.719110][ T0] Switched APIC routing to physical x2apic. [ 1.724419][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.725782][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.727872][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.729282][ T0] pid_max: default: 32768 minimum: 301 [ 1.731259][ T0] LSM: Security Framework initializing [ 1.732185][ T0] LSM: security= is ignored because it is superseded by lsm= [ 1.733556][ T0] Yama: becoming mindful. [ 1.734877][ T0] TOMOYO Linux initialized [ 1.739156][ T0] AppArmor: AppArmor initialized [ 1.747509][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.748796][ C0] ------------[ cut here ]------------ [ 1.748801][ C0] WARNING: CPU: 0 PID: 0 at mm/slab.h:232 kmem_cache_free+0x0/0x10 [ 1.748804][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 1.748808][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc2-next-20200625-syzkaller #0 [ 1.748812][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.748813][ C0] Call Trace: [ 1.748815][ C0] dump_stack+0x18f/0x20d [ 1.748817][ C0] panic+0x2e3/0x75c [ 1.748818][ C0] ? __warn_printk+0xf3/0xf3 [ 1.748820][ C0] ? printk+0xba/0xed [ 1.748822][ C0] ? log_store.cold+0x16/0x16 [ 1.748824][ C0] ? __warn.cold+0x5/0x45 [ 1.748825][ C0] ? __warn+0xd6/0x1f2 [ 1.748827][ C0] ? kmem_cache_free.part.0+0x1f0/0x1f0 [ 1.748829][ C0] __warn.cold+0x20/0x45 [ 1.748831][ C0] ? kmem_cache_free.part.0+0x1f0/0x1f0 [ 1.748833][ C0] report_bug+0x1bd/0x210 [ 1.748835][ C0] exc_invalid_op+0xb1/0x120 [ 1.748837][ C0] asm_exc_invalid_op+0x12/0x20 [ 1.748839][ C0] RIP: 0010:kmem_cache_free+0x0/0x10 [ 1.748846][ C0] Code: 75 ca 48 c7 c2 38 cf 65 89 be 91 00 00 00 48 c7 c7 b6 0d 69 89 c6 05 fb 87 f6 08 01 e8 be 66 a7 ff eb a9 0f 1f 80 00 00 00 00 <0f> 0b 48 85 ff 74 05 e9 04 fe ff ff c3 0f 1f 00 41 57 48 8d 46 60 [ 1.748849][ C0] RSP: 0000:ffffffff89a07b88 EFLAGS: 00010293 [ 1.748854][ C0] RAX: 0000000000000000 RBX: ffff8880aa01f0e8 RCX: ffff8880aa01f490 [ 1.748857][ C0] RDX: ffffffff89a86580 RSI: ffff8880aa01f480 RDI: ffff8880aa00fe00 [ 1.748860][ C0] RBP: ffff8880aa01f4a8 R08: 0000000000000001 R09: 0000000000000003 [ 1.748863][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aa01f4b0 [ 1.748866][ C0] R13: ffff8880aa01f688 R14: ffff8880aa01f480 R15: ffffc90000000000 [ 1.748868][ C0] alloc_vmap_area+0x142c/0x1de0 [ 1.748870][ C0] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 1.748877][ C0] ? free_vmap_area+0x1aa0/0x1aa0 [ 1.748879][ C0] ? kmem_cache_alloc_node_trace+0x47a/0x590 [ 1.748882][ C0] ? __get_vm_area_node+0x126/0x3b0 [ 1.748884][ C0] __get_vm_area_node+0x17b/0x3b0 [ 1.748885][ C0] __vmalloc_node+0xfe/0x1b0 [ 1.748888][ C0] ? alloc_large_system_hash+0x1c9/0x2e2 [ 1.748890][ C0] ? alloc_large_system_hash+0x1c9/0x2e2 [ 1.748892][ C0] __vmalloc_area_node+0x141/0x7a0 [ 1.748894][ C0] ? __get_vm_area_node+0x2e5/0x3b0 [ 1.748896][ C0] ? alloc_large_system_hash+0x1c9/0x2e2 [ 1.748898][ C0] __vmalloc+0x114/0x1a0 [ 1.748900][ C0] alloc_large_system_hash+0x1c9/0x2e2 [ 1.748902][ C0] inode_init+0xab/0xbc [ 1.748903][ C0] vfs_caches_init+0x104/0x11e [ 1.748906][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 1.748908][ C0] start_kernel+0x985/0xa06 [ 1.748910][ C0] ? mem_encrypt_init+0x5/0x5 [ 1.748911][ C0] ? x86_cpuid_vendor+0x84/0x90 [ 1.748914][ C0] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 1.748916][ C0] ? load_ucode_bsp+0x1b7/0x1f7 [ 1.748918][ C0] secondary_startup_64+0xa4/0xb0