[ 0.000000][ T0] Linux version 5.8.0-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=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo,bpf 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 rcupdate.rcu_expedited=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Hygon HygonGenuine [ 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 [ 0.000001][ T0] kvm-clock: cpu 0, msr 5561001, primary cpu clock [ 0.000001][ T0] kvm-clock: using sched offset of 2777760632 cycles [ 0.000970][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003760][ T0] tsc: Detected 2300.000 MHz processor [ 0.005284][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.006274][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.007408][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.013391][ T0] found SMP MP-table at [mem 0x000f2370-0x000f237f] [ 0.014782][ T0] check: Scanning 1 areas for low memory corruption [ 0.015687][ T0] Using GB pages for direct mapping [ 0.017673][ T0] ACPI: Early table checksum verification disabled [ 0.018512][ T0] ACPI: RSDP 0x00000000000F20F0 000014 (v00 Google) [ 0.019469][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.021673][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.022961][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.024499][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.025284][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.026251][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.027592][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.028859][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.030323][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.031900][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.032689][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.033593][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.034544][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.035473][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.036613][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.038387][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.040058][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.041171][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.042523][ T0] NODE_DATA(0) allocated [mem 0x12fffc000-0x12fffffff] [ 0.044201][ T0] NODE_DATA(1) allocated [mem 0x21fff9000-0x21fffcfff] [ 0.045177][ T0] Zone ranges: [ 0.045635][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.046566][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.047477][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.048422][ T0] Movable zone start for each node [ 0.049112][ T0] Early memory node ranges [ 0.049749][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.050713][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.051667][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.052583][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.054987][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.054990][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.082072][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.110323][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.111381][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.112459][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.113845][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.114917][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.116265][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.117264][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.118348][ T0] Using ACPI (MADT) for SMP configuration information [ 0.119352][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.120546][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.122049][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.123747][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.124915][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.126143][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.127348][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.128510][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.129922][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.130872][ T0] Booting paravirtualized kernel on KVM [ 0.131681][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.149047][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.151252][ T0] percpu: Embedded 55 pages/cpu s184648 r8192 d32440 u1048576 [ 0.152466][ T0] kvm-guest: PV spinlocks enabled [ 0.153120][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.154332][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1935238 [ 0.155990][ T0] Policy zone: Normal [ 0.156764][ 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=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo,bpf 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 rcupdate.rcu_expedited=1 [ 0.167396][ T0] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.204938][ T0] Memory: 7596388K/7863916K available (38917K kernel code, 3367K rwdata, 10840K rodata, 1692K init, 6912K bss, 267272K reserved, 0K cma-reserved) [ 0.209677][ T0] rcu: Preemptible hierarchical RCU implementation. [ 0.210834][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 0.211921][ T0] All grace periods are expedited (rcu_expedited). [ 0.212825][ T0] Trampoline variant of Tasks RCU enabled. [ 0.214461][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 0.215946][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.219828][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 0.221348][ T0] random: get_random_bytes called from start_kernel+0x450/0x687 with crng_init=0 [ 0.223711][ T0] Console: colour VGA+ 80x25 [ 0.225817][ T0] printk: console [ttyS0] enabled [ 0.225817][ T0] printk: console [ttyS0] enabled [ 0.227324][ T0] printk: bootconsole [earlyser0] disabled [ 0.227324][ T0] printk: bootconsole [earlyser0] disabled [ 0.229346][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 0.231015][ T0] ACPI: Core revision 20200717 [ 0.232046][ T0] APIC: Switch to symmetric I/O mode setup [ 0.233713][ T0] x2apic enabled [ 0.235927][ T0] Switched APIC routing to physical x2apic. [ 0.240363][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 0.241574][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 0.243346][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 0.244643][ T0] pid_max: default: 32768 minimum: 301 [ 0.246009][ T0] LSM: Security Framework initializing [ 0.246947][ T0] LSM: security= is ignored because it is superseded by lsm= [ 0.248182][ T0] Yama: becoming mindful. [ 0.249320][ T0] SELinux: Initializing. [ 0.250182][ T0] TOMOYO Linux initialized [ 0.256388][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 0.260176][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 0.262013][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 0.263381][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 0.266282][ T0] ------------[ cut here ]------------ [ 0.267149][ T0] WARNING: CPU: 0 PID: 0 at mm/memcontrol.c:5226 mem_cgroup_css_alloc+0x27a/0x860 [ 0.268754][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 0.270048][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-syzkaller #0 [ 0.271089][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.272611][ T0] Call Trace: [ 0.273091][ T0] dump_stack+0xbb/0xe3 [ 0.273341][ T0] ? mem_cgroup_css_alloc+0x250/0x860 [ 0.273341][ T0] panic+0x15b/0x3dc [ 0.273341][ T0] ? __warn.cold+0x29/0x4d [ 0.273341][ T0] ? mem_cgroup_css_alloc+0x27a/0x860 [ 0.273341][ T0] __warn.cold+0x3f/0x4d [ 0.273341][ T0] ? mem_cgroup_css_alloc+0x27a/0x860 [ 0.273341][ T0] report_bug+0xd5/0x100 [ 0.273341][ T0] handle_bug+0x32/0x90 [ 0.273341][ T0] exc_invalid_op+0x14/0x70 [ 0.273341][ T0] asm_exc_invalid_op+0x12/0x20 [ 0.273341][ T0] RIP: 0010:mem_cgroup_css_alloc+0x27a/0x860 [ 0.273341][ T0] Code: 4c 89 e7 e8 a8 1c 07 fe eb 97 49 c7 c4 f4 ff ff ff 48 c7 83 58 0a 00 00 00 00 00 00 5b 4c 89 e0 5d 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b e9 10 fe ff ff 4c 63 e0 48 89 ef 4c 89 e3 e8 e1 da 08 fe 65 [ 0.273341][ T0] RSP: 0000:ffffffff84403e78 EFLAGS: 00010246 [ 0.273341][ T0] RAX: 0000000000000001 RBX: ffffffff8442b840 RCX: 0000000000000001 [ 0.273341][ T0] RDX: ffffffff8442b840 RSI: ffffffff81d83224 RDI: ffffffff844ab610 [ 0.273341][ T0] RBP: ffff88821ba91000 R08: ffffffff844acdb0 R09: ffffffff844acdb0 [ 0.273341][ T0] R10: 0000000000000002 R11: 0000000000000006 R12: 0000000000000000 [ 0.273341][ T0] R13: 0000000000000000 R14: 0000000000000004 R15: 0000000000000008 [ 0.273341][ T0] ? idr_alloc+0x84/0xc0 [ 0.273341][ T0] ? mem_cgroup_css_alloc+0x75/0x860 [ 0.273341][ T0] ? setup_cpu_cache+0x230/0x230 [ 0.273341][ T0] cgroup_init_subsys+0x95/0x1ac [ 0.273341][ T0] cgroup_init+0x1a0/0x4fb [ 0.273341][ T0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 0.273341][ T0] start_kernel+0x641/0x687 [ 0.273341][ T0] secondary_startup_64+0xa4/0xb0 [ 0.273341][ T0] Rebooting in 86400 seconds..