[ 0.000000][ T0] Linux version 5.8.0-rc2-next-20200623-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 be79001, primary cpu clock [ 0.000007][ T0] kvm-clock: using sched offset of 5233709824 cycles [ 0.002586][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.010965][ T0] tsc: Detected 2300.000 MHz processor [ 0.014781][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.018090][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.021043][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.029745][ T0] found SMP MP-table at [mem 0x000f2390-0x000f239f] [ 0.032775][ T0] check: Scanning 1 areas for low memory corruption [ 0.035681][ T0] Using GB pages for direct mapping [ 0.040103][ T0] ACPI: Early table checksum verification disabled [ 0.043431][ T0] ACPI: RSDP 0x00000000000F2110 000014 (v00 Google) [ 0.046190][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.050766][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.054279][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.058466][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.061057][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.063732][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.067489][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.071646][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.075766][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.079735][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.081511][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.083401][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.086396][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.088948][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.091853][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.095724][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.100268][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.103737][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.109315][ T0] NODE_DATA(0) allocated [mem 0x12fffb000-0x12fffffff] [ 0.112935][ T0] NODE_DATA(1) allocated [mem 0x21fff8000-0x21fffcfff] [ 0.171928][ T0] Zone ranges: [ 0.173772][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.176614][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.181935][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.185020][ T0] Device empty [ 0.186757][ T0] Movable zone start for each node [ 0.188810][ T0] Early memory node ranges [ 0.191884][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.194774][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.197916][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.200471][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.206463][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.206471][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.242498][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.713492][ T0] kasan: KernelAddressSanitizer initialized [ 0.717307][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.719183][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.721652][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.725179][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.728406][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.731461][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.734060][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.736950][ T0] Using ACPI (MADT) for SMP configuration information [ 0.740046][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.742114][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.745023][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.748989][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.752797][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.756524][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.759598][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.764223][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.767388][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.769867][ T0] Booting paravirtualized kernel on KVM [ 0.772288][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.831923][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.837946][ T0] percpu: Embedded 65 pages/cpu s226760 r8192 d31288 u1048576 [ 0.841908][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.846094][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1935238 [ 0.851330][ T0] Policy zone: Normal [ 0.852870][ 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 [ 0.883687][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.796141][ T0] Memory: 6461436K/7863916K available (116743K kernel code, 17452K rwdata, 21456K rodata, 2768K init, 24280K bss, 1402480K reserved, 0K cma-reserved) [ 1.808885][ T0] Running RCU self tests [ 1.812205][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.814597][ T0] rcu: RCU lockdep checking is enabled. [ 1.816698][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.819490][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.822241][ T0] rcu: RCU debug extended QS entry/exit. [ 1.825115][ T0] Trampoline variant of Tasks RCU enabled. [ 1.827298][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.830418][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.841367][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.845277][ T0] random: get_random_bytes called from start_kernel+0x67f/0xa06 with crng_init=0 [ 1.849473][ T0] Console: colour VGA+ 80x25 [ 1.856849][ T0] printk: console [ttyS0] enabled [ 1.856849][ T0] printk: console [ttyS0] enabled [ 1.860885][ T0] printk: bootconsole [earlyser0] disabled [ 1.860885][ T0] printk: bootconsole [earlyser0] disabled [ 1.865362][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.869116][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.871171][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.872959][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.876831][ T0] ... CLASSHASH_SIZE: 4096 [ 1.880066][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.882178][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.884110][ T0] ... CHAINHASH_SIZE: 32768 [ 1.886989][ T0] memory used by lock dependency info: 6301 kB [ 1.890010][ T0] memory used for stack traces: 4224 kB [ 1.893260][ T0] per task-struct memory footprint: 1920 bytes [ 1.897121][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.902560][ T0] ACPI: Core revision 20200528 [ 1.905562][ T0] APIC: Switch to symmetric I/O mode setup [ 1.909808][ T0] x2apic enabled [ 1.914142][ T0] Switched APIC routing to physical x2apic. [ 1.920739][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.925909][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.931861][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.934924][ T0] pid_max: default: 32768 minimum: 301 [ 1.943083][ T0] LSM: Security Framework initializing [ 1.946528][ T0] LSM: security= is ignored because it is superseded by lsm= [ 1.949547][ T0] Yama: becoming mindful. [ 1.952136][ T0] TOMOYO Linux initialized [ 1.955907][ T0] AppArmor: AppArmor initialized [ 1.969551][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.972751][ C0] ------------[ cut here ]------------ [ 1.972755][ C0] WARNING: CPU: 0 PID: 0 at mm/slab.h:232 kmem_cache_free+0x0/0x10 [ 1.972758][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 1.972762][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc2-next-20200623-syzkaller #0 [ 1.972766][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.972767][ C0] Call Trace: [ 1.972769][ C0] dump_stack+0x18f/0x20d [ 1.972771][ C0] panic+0x2e3/0x75c [ 1.972773][ C0] ? __warn_printk+0xf3/0xf3 [ 1.972774][ C0] ? printk+0xba/0xed [ 1.972776][ C0] ? log_store.cold+0x16/0x16 [ 1.972778][ C0] ? __warn.cold+0x5/0x45 [ 1.972779][ C0] ? __warn+0xd6/0x1f2 [ 1.972782][ C0] ? kmem_cache_free.part.0+0x1f0/0x1f0 [ 1.972783][ C0] __warn.cold+0x20/0x45 [ 1.972785][ C0] ? kmem_cache_free.part.0+0x1f0/0x1f0 [ 1.972787][ C0] report_bug+0x1bd/0x210 [ 1.972789][ C0] exc_invalid_op+0xb1/0x120 [ 1.972791][ C0] asm_exc_invalid_op+0x12/0x20 [ 1.972793][ C0] RIP: 0010:kmem_cache_free+0x0/0x10 [ 1.972801][ C0] Code: 75 ca 48 c7 c2 90 b7 65 89 be 91 00 00 00 48 c7 c7 f6 f5 68 89 c6 05 db 78 f6 08 01 e8 8e 68 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 [ 1.972803][ C0] RSP: 0000:ffffffff89a07b88 EFLAGS: 00010293 [ 1.972808][ C0] RAX: 0000000000000000 RBX: ffff8880aa01f0e8 RCX: ffff8880aa01f490 [ 1.972811][ C0] RDX: ffffffff89a86580 RSI: ffff8880aa01f480 RDI: ffff8880aa00fe00 [ 1.972814][ C0] RBP: ffff8880aa01f4a8 R08: 0000000000000001 R09: 0000000000000003 [ 1.972817][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aa01f4b0 [ 1.972820][ C0] R13: ffff8880aa01f688 R14: ffff8880aa01f480 R15: ffffc90000000000 [ 1.972822][ C0] alloc_vmap_area+0x142c/0x1de0 [ 1.972824][ C0] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 1.972826][ C0] ? free_vmap_area+0x1aa0/0x1aa0 [ 1.972828][ C0] ? kmem_cache_alloc_node_trace+0x47a/0x590 [ 1.972831][ C0] ? __get_vm_area_node+0x126/0x3b0 [ 1.972832][ C0] __get_vm_area_node+0x17b/0x3b0 [ 1.972834][ C0] __vmalloc_node+0xfe/0x1b0 [ 1.972837][ C0] ? alloc_large_system_hash+0x1c9/0x2e2 [ 1.972839][ C0] ? alloc_large_system_hash+0x1c9/0x2e2 [ 1.972841][ C0] __vmalloc_area_node+0x141/0x7a0 [ 1.972843][ C0] ? __get_vm_area_node+0x2e5/0x3b0 [ 1.972845][ C0] ? alloc_large_system_hash+0x1c9/0x2e2 [ 1.972847][ C0] __vmalloc+0x114/0x1a0 [ 1.972849][ C0] alloc_large_system_hash+0x1c9/0x2e2 [ 1.972851][ C0] inode_init+0xab/0xbc [ 1.972852][ C0] vfs_caches_init+0x104/0x11e [ 1.972855][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 1.972857][ C0] start_kernel+0x985/0xa06 [ 1.972858][ C0] ? mem_encrypt_init+0x5/0x5 [ 1.972860][ C0] ? x86_cpuid_vendor+0x84/0x90 [ 1.972863][ C0] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 1.972865][ C0] ? load_ucode_bsp+0x1b7/0x1f7 [ 1.972867][ C0] secondary_startup_64+0xa4/0xb0