failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.10.29" "pwd"]: exit status 255 ssh: connect to host 10.128.10.29 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600,[216.239.38.127]:9600' (RSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-2 port 1 (session ID: 4d6d3aaf1245ff4569e4a2498b0bf4ce75782cb0fe06da792be02e5e2a2cb0da, active connections: 1). SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000200000000 = 8192 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID 633cdbc8-83d4-2ab1-e53f-fc3179553bbc found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f2750: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... [ 0.000000][ T0] Linux version 5.17.0-rc6-next-20220307-syzkaller (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 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] signal: max sigframe size: 1776 [ 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 0x0000000100000000-0x000000023fffffff] usable [ 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] ********************************************************** [ 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] 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: using sched offset of 3614435693 cycles [ 0.000832][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003313][ T0] tsc: Detected 2200.202 MHz processor [ 0.008926][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.009860][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.010878][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.017979][ T0] found SMP MP-table at [mem 0x000f2a10-0x000f2a1f] [ 0.018916][ T0] Using GB pages for direct mapping [ 0.021311][ T0] ACPI: Early table checksum verification disabled [ 0.022304][ T0] ACPI: RSDP 0x00000000000F2790 000014 (v00 Google) [ 0.023229][ T0] ACPI: RSDT 0x00000000BFFFFF90 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.024708][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.026266][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.027501][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.028254][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.028991][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.030294][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.031654][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.032914][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.034167][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.035204][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.036238][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.037255][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.038270][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.039287][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.040431][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.041493][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.043058][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.043783][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.044518][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.045502][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.046464][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.047404][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.048965][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.050658][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.051798][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.053496][ T0] NODE_DATA(0) allocated [mem 0x13fffa000-0x13fffffff] [ 0.055008][ T0] NODE_DATA(1) allocated [mem 0x23fff7000-0x23fffcfff] [ 0.094343][ T0] Zone ranges: [ 0.094889][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.095862][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.096870][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.097883][ T0] Device empty [ 0.098366][ T0] Movable zone start for each node [ 0.099072][ T0] Early memory node ranges [ 0.099725][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.100760][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.102346][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.103303][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.104339][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.105697][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.106846][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.107004][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.145015][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.489027][ T0] kasan: KernelAddressSanitizer initialized [ 0.491327][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.492064][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.493090][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.494100][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.495064][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.496302][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.497367][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.498501][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.499746][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.500774][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.502113][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.503300][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.504533][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.505622][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.506752][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.507998][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.509348][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.510385][ T0] Booting paravirtualized kernel on KVM [ 0.511251][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.575465][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 0.577565][ T0] percpu: Embedded 69 pages/cpu s243784 r8192 d30648 u1048576 [ 0.579328][ T0] kvm-guest: PV spinlocks enabled [ 0.580107][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.581390][ T0] Fallback order for Node 0: 0 1 [ 0.582331][ T0] Fallback order for Node 1: 1 0 [ 0.583312][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064125 [ 0.584763][ T0] Policy zone: Normal [ 0.585495][ 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 page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 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 sysctl.net.core.netdev_unregister_timeout_secs=140 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.601781][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.604576][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.605601][ T0] Stack Depot allocating hash table with memblock_alloc [ 1.477805][ T0] Memory: 6842036K/8388204K available (141341K kernel code, 34305K rwdata, 29800K rodata, 2692K init, 24660K bss, 1545912K reserved, 0K cma-reserved) [ 1.481531][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.484639][ T0] Dynamic Preempt: full [ 1.486115][ T0] Running RCU self tests [ 1.486790][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.488003][ T0] rcu: RCU lockdep checking is enabled. [ 1.488882][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.489891][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.491006][ T0] rcu: RCU debug extended QS entry/exit. [ 1.491862][ T0] All grace periods are expedited (rcu_expedited). [ 1.492760][ T0] Trampoline variant of Tasks RCU enabled. [ 1.493587][ T0] Tracing variant of Tasks RCU enabled. [ 1.494367][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.495740][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.534589][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.536066][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.537488][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823bc00000-0xffff88823be00000 [ 1.539073][ T0] random: crng init done (trusting CPU's manufacturer) [ 1.541070][ T0] Console: colour VGA+ 80x25 [ 1.541813][ T0] printk: console [ttyS0] enabled [ 1.541813][ T0] printk: console [ttyS0] enabled [ 1.543213][ T0] printk: bootconsole [earlyser0] disabled [ 1.543213][ T0] printk: bootconsole [earlyser0] disabled [ 1.544888][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.546126][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.546922][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.547708][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.548592][ T0] ... CLASSHASH_SIZE: 4096 [ 1.549315][ T0] ... MAX_LOCKDEP_ENTRIES: 65536 [ 1.550312][ T0] ... MAX_LOCKDEP_CHAINS: 131072 [ 1.551350][ T0] ... CHAINHASH_SIZE: 65536 [ 1.552203][ T0] memory used by lock dependency info: 11129 kB [ 1.553400][ T0] memory used for stack traces: 8320 kB [ 1.554210][ T0] per task-struct memory footprint: 1920 bytes [ 1.555371][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.557127][ T0] ACPI: Core revision 20211217 [ 1.558361][ T0] APIC: Switch to symmetric I/O mode setup [ 1.564103][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.565596][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6f1c9125, max_idle_ns: 440795292239 ns [ 1.567438][ T0] Calibrating delay loop (skipped) preset value.. 4400.40 BogoMIPS (lpj=22002020) [ 1.577459][ T0] pid_max: default: 32768 minimum: 301 [ 1.578867][ T0] LSM: Security Framework initializing [ 1.580322][ T0] landlock: Up and running. [ 1.581118][ T0] Yama: becoming mindful. [ 1.581843][ T0] TOMOYO Linux initialized [ 1.582981][ T0] AppArmor: AppArmor initialized [ 1.583780][ T0] LSM support for eBPF active [ 1.589010][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 1.592759][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 1.594368][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.595744][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.600972][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.602259][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.603198][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.604733][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.604786][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.607477][ T0] TAA: Mitigation: Clear CPU buffers [ 1.608220][ T0] MDS: Mitigation: Clear CPU buffers [ 1.611099][ T0] Freeing SMP alternatives memory: 108K [ 1.612473][ T2] [ 1.612918][ T2] ============================= [ 1.613600][ T2] WARNING: suspicious RCU usage [ 1.614294][ T2] 5.17.0-rc6-next-20220307-syzkaller #0 Not tainted [ 1.615459][ T2] ----------------------------- [ 1.616154][ T2] include/linux/cgroup.h:494 suspicious rcu_dereference_check() usage! [ 1.617317][ T2] [ 1.617317][ T2] other info that might help us debug this: [ 1.617317][ T2] [ 1.617423][ T2] [ 1.617423][ T2] rcu_scheduler_active = 1, debug_locks = 1 [ 1.617423][ T2] 2 locks held by kthreadd/2: [ 1.617423][ T2] #0: ffff8881401726e0 (&p->pi_lock){....}-{2:2}, at: task_rq_lock+0x63/0x360 [ 1.617423][ T2] #1: ffff8880b9c39f98 (&rq->__lock){-...}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 [ 1.617423][ T2] [ 1.617423][ T2] stack backtrace: [ 1.617423][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.17.0-rc6-next-20220307-syzkaller #0 [ 1.617423][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.617423][ T2] Call Trace: [ 1.617423][ T2] [ 1.617423][ T2] dump_stack_lvl+0xcd/0x134 [ 1.617423][ T2] cpuacct_charge+0x2af/0x3c0 [ 1.617423][ T2] update_curr+0x37b/0x830 [ 1.617423][ T2] dequeue_entity+0x23/0xfd0 [ 1.617423][ T2] dequeue_task_fair+0x238/0xea0 [ 1.617423][ T2] __do_set_cpus_allowed+0x186/0x960 [ 1.617423][ T2] __set_cpus_allowed_ptr_locked+0x2ba/0x4e0 [ 1.617423][ T2] ? lock_downgrade+0x6e0/0x6e0 [ 1.617423][ T2] set_cpus_allowed_ptr+0x78/0xa0 [ 1.617423][ T2] ? __set_cpus_allowed_ptr_locked+0x4e0/0x4e0 [ 1.617423][ T2] ? lockdep_hardirqs_on+0x79/0x100 [ 1.617423][ T2] ? kthread_is_per_cpu+0xf0/0xf0 [ 1.617423][ T2] kthreadd+0x44/0x750 [ 1.617423][ T2] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1.617423][ T2] ? kthread_is_per_cpu+0xf0/0xf0 [ 1.617423][ T2] ret_from_fork+0x1f/0x30 [ 1.617423][ T2] [ 1.617423][ T2] [ 1.617423][ T2] ============================= [ 1.617423][ T2] WARNING: suspicious RCU usage [ 1.617423][ T2] 5.17.0-rc6-next-20220307-syzkaller #0 Not tainted [ 1.617423][ T2] ----------------------------- [ 1.617423][ T2] include/linux/cgroup.h:481 suspicious rcu_dereference_check() usage! [ 1.617423][ T2] [ 1.617423][ T2] other info that might help us debug this: [ 1.617423][ T2] [ 1.617423][ T2] [ 1.617423][ T2] rcu_scheduler_active = 1, debug_locks = 1 [ 1.617423][ T2] 2 locks held by kthreadd/2: [ 1.617423][ T2] #0: ffff8881401726e0 (&p->pi_lock){....}-{2:2}, at: task_rq_lock+0x63/0x360 [ 1.617423][ T2] #1: ffff8880b9c39f98 (&rq->__lock){-...}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 [ 1.617423][ T2] [ 1.617423][ T2] stack backtrace: [ 1.617423][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.17.0-rc6-next-20220307-syzkaller #0 [ 1.617423][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.617423][ T2] Call Trace: [ 1.617423][ T2] [ 1.617423][ T2] dump_stack_lvl+0xcd/0x134 [ 1.617423][ T2] update_curr+0x671/0x830 [ 1.617423][ T2] dequeue_entity+0x23/0xfd0 [ 1.617423][ T2] dequeue_task_fair+0x238/0xea0 [ 1.617423][ T2] __do_set_cpus_allowed+0x186/0x960 [ 1.617423][ T2] __set_cpus_allowed_ptr_locked+0x2ba/0x4e0 [ 1.617423][ T2] ? lock_downgrade+0x6e0/0x6e0 [ 1.617423][ T2] set_cpus_allowed_ptr+0x78/0xa0 [ 1.617423][ T2] ? __set_cpus_allowed_ptr_locked+0x4e0/0x4e0 [ 1.617423][ T2] ? lockdep_hardirqs_on+0x79/0x100 [ 1.617423][ T2] ? kthread_is_per_cpu+0xf0/0xf0 [ 1.617423][ T2] kthreadd+0x44/0x750 [ 1.617423][ T2] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1.617423][ T2] ? kthread_is_per_cpu+0xf0/0xf0 [ 1.617423][ T2] ret_from_fork+0x1f/0x30 [ 1.617423][ T2] [ 1.617449][ T1] [ 1.617832][ T1] ============================= [ 1.618520][ T1] WARNING: suspicious RCU usage [ 1.619220][ T1] 5.17.0-rc6-next-20220307-syzkaller #0 Not tainted [ 1.620177][ T1] ----------------------------- [ 1.620887][ T1] include/linux/cgroup.h:481 suspicious rcu_dereference_check() usage! [ 1.622011][ T1] [ 1.622011][ T1] other info that might help us debug this: [ 1.622011][ T1] [ 1.623411][ T1] [ 1.623411][ T1] rcu_scheduler_active = 1, debug_locks = 1 [ 1.624537][ T1] 1 lock held by swapper/0/1: [ 1.625261][ T1] #0: ffff888140172468 (&p->vtime.seqcount){....}-{0:0}, at: finish_task_switch.isra.0+0x6cf/0xb80 [ 1.626982][ T1] [ 1.626982][ T1] stack backtrace: [ 1.627423][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220307-syzkaller #0 [ 1.627423][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.627423][ T1] Call Trace: [ 1.627423][ T1] [ 1.627423][ T1] dump_stack_lvl+0xcd/0x134 [ 1.627423][ T1] account_system_index_time+0x258/0x2d0 [ 1.627423][ T1] vtime_account_system+0x368/0x530 [ 1.627423][ T1] vtime_task_switch_generic+0xfa/0x5a0 [ 1.627423][ T1] ? rest_init+0x3e0/0x3e0 [ 1.627423][ T1] finish_task_switch.isra.0+0x6cf/0xb80 [ 1.627423][ T1] ? rest_init+0x3e0/0x3e0 [ 1.627423][ T1] schedule_tail+0x7/0xd0 [ 1.627423][ T1] ? rest_init+0x3e0/0x3e0 [ 1.627423][ T1] ret_from_fork+0x8/0x30 [ 1.627423][ T1] [ 1.753559][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.757290][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.757423][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.757423][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.757423][ T1] Running RCU-tasks wait API self tests [ 1.857857][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.860055][ T1] rcu: Hierarchical SRCU implementation. [ 1.861392][ T17] [ 1.861801][ T17] ============================= [ 1.862504][ T17] WARNING: suspicious RCU usage [ 1.863182][ T17] 5.17.0-rc6-next-20220307-syzkaller #0 Not tainted [ 1.864522][ T17] ----------------------------- [ 1.865176][ T17] include/linux/cgroup.h:481 suspicious rcu_dereference_check() usage! [ 1.866273][ T17] [ 1.866273][ T17] other info that might help us debug this: [ 1.866273][ T17] [ 1.867423][ T17] [ 1.867423][ T17] rcu_scheduler_active = 1, debug_locks = 1 [ 1.867423][ T17] 1 lock held by migration/0/17: [ 1.867423][ T17] #0: ffff8880b9c39f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 [ 1.867423][ T17] [ 1.867423][ T17] stack backtrace: [ 1.867423][ T17] CPU: 0 PID: 17 Comm: migration/0 Not tainted 5.17.0-rc6-next-20220307-syzkaller #0 [ 1.867423][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.867423][ T17] Stopper: 0x0 <- 0x0 [ 1.867423][ T17] Call Trace: [ 1.867423][ T17] [ 1.867423][ T17] dump_stack_lvl+0xcd/0x134 [ 1.867423][ T17] put_prev_task_stop+0x461/0x630 [ 1.867423][ T17] ? put_prev_task_balance+0x83/0x130 [ 1.867423][ T17] ? schedule+0xd2/0x1f0 [ 1.867423][ T17] __schedule+0x320f/0x4920 [ 1.867423][ T17] ? find_held_lock+0x2d/0x110 [ 1.867423][ T17] ? lock_downgrade+0x6e0/0x6e0 [ 1.867423][ T17] ? io_schedule_timeout+0x140/0x140 [ 1.867423][ T17] ? ikconfig_read_current+0x40/0x40 [ 1.867423][ T17] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 1.867423][ T17] ? ikconfig_read_current+0x40/0x40 [ 1.867423][ T17] schedule+0xd2/0x1f0 [ 1.867423][ T17] smpboot_thread_fn+0x2eb/0x9c0 [ 1.867423][ T17] ? sort_range+0x30/0x30 [ 1.867423][ T17] kthread+0x2e9/0x3a0 [ 1.867423][ T17] ? kthread_complete_and_exit+0x40/0x40 [ 1.867423][ T17] ret_from_fork+0x1f/0x30 [ 1.867423][ T17] [ 1.870883][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.873032][ T1] smp: Bringing up secondary CPUs ... [ 1.877541][ T13] Callback from call_rcu_tasks_trace() invoked. [ 1.880055][ T1] x86: Booting SMP configuration: [ 1.880821][ T1] .... node #0, CPUs: #1 [ 1.882725][ 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. [ 1.882725][ T1] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [ 1.887619][ T1] smp: Brought up 2 nodes, 2 CPUs [ 1.888738][ T1] smpboot: Max logical packages: 1 [ 1.889596][ T1] smpboot: Total of 2 processors activated (8800.80 BogoMIPS) [ 1.931158][ T1] allocated 134217728 bytes of page_ext [ 1.932428][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.945083][ T1] Node 0, zone DMA32: page owner found early allocated 19121 pages [ 1.961221][ T1] Node 0, zone Normal: page owner found early allocated 100 pages [ 1.969313][ T1] Node 1, zone Normal: page owner found early allocated 19162 pages [ 1.971840][ T1] devtmpfs: initialized [ 1.971840][ T1] x86/mm: Memory block size: 128MB [ 2.007575][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.009135][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.011491][ T1] PM: RTC time: 08:23:39, date: 2022-03-07 [ 2.020125][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.026448][ T1] audit: initializing netlink subsys (disabled) [ 2.029501][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.029513][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.030894][ T1] cpuidle: using governor menu [ 2.037503][ T27] audit: type=2000 audit(1646641419.264:1): state=initialized audit_enabled=0 res=1 [ 2.037443][ T1] NET: Registered PF_QIPCRTR protocol family [ 2.041609][ T1] PCI: Using configuration type 1 for base access [ 2.078060][ T12] Callback from call_rcu_tasks() invoked. [ 2.231228][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 2.237972][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 2.238994][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 2.249429][ T1] cryptd: max_cpu_qlen set to 1000 [ 2.249429][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 2.249429][ T1] raid6: using avx2x2 recovery algorithm [ 2.257445][ T1] ACPI: Added _OSI(Module Device) [ 2.257445][ T1] ACPI: Added _OSI(Processor Device) [ 2.257445][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.257445][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.257445][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.257445][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.257445][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.312297][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.344734][ T1] ACPI: Interpreter enabled [ 2.347661][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.348437][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.349483][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.353624][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 2.428828][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 2.430077][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 2.431306][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 2.433204][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 2.440438][ T1] PCI host bridge to bus 0000:00 [ 2.441343][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 2.442626][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 2.443696][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 2.444784][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 2.445949][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 2.447076][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.447788][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 2.453322][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 2.471836][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 2.488685][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 2.491926][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 2.498682][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 2.503903][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 2.521969][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 2.526424][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 2.531439][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 2.544986][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 2.553768][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 2.576672][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 2.579178][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 2.586198][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 2.591358][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 2.608849][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 2.615720][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 2.620611][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 2.646441][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 2.650466][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 2.654440][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 2.658675][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 2.661604][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 2.669577][ T1] iommu: Default domain type: Translated [ 2.669577][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 2.677444][ T1] SCSI subsystem initialized [ 2.678381][ T1] ACPI: bus type USB registered [ 2.679417][ T1] usbcore: registered new interface driver usbfs [ 2.680475][ T1] usbcore: registered new interface driver hub [ 2.680475][ T1] usbcore: registered new device driver usb [ 2.680475][ T1] mc: Linux media interface: v0.10 [ 2.681539][ T1] videodev: Linux video capture interface: v2.00 [ 2.687920][ T1] pps_core: LinuxPPS API ver. 1 registered [ 2.687920][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 2.687920][ T1] PTP clock support registered [ 2.687930][ T1] EDAC MC: Ver: 3.0.0 [ 2.689076][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 2.697444][ T1] Bluetooth: Core ver 2.22 [ 2.697444][ T1] NET: Registered PF_BLUETOOTH protocol family [ 2.697444][ T1] Bluetooth: HCI device and connection manager initialized [ 2.697499][ T1] Bluetooth: HCI socket layer initialized [ 2.698567][ T1] Bluetooth: L2CAP socket layer initialized [ 2.699524][ T1] Bluetooth: SCO socket layer initialized [ 2.700611][ T1] NET: Registered PF_ATMPVC protocol family [ 2.701582][ T1] NET: Registered PF_ATMSVC protocol family [ 2.702944][ T1] NetLabel: Initializing [ 2.703670][ T1] NetLabel: domain hash size = 128 [ 2.704422][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 2.705661][ T1] NetLabel: unlabeled traffic allowed by default [ 2.708682][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 2.709690][ T1] NET: Registered PF_NFC protocol family [ 2.710600][ T1] PCI: Using ACPI for IRQ routing [ 2.712124][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 2.713377][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 2.714373][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 2.715659][ T1] vgaarb: loaded [ 2.720930][ T1] clocksource: Switched to clocksource kvm-clock [ 3.291926][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.292988][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 3.295177][ T1] FS-Cache: Loaded [ 3.297209][ T1] CacheFiles: Loaded [ 3.298554][ T1] TOMOYO: 2.6.0 [ 3.299225][ T1] Mandatory Access Control activated. [ 3.303488][ T1] AppArmor: AppArmor Filesystem Enabled [ 3.304828][ T1] pnp: PnP ACPI init [ 3.324750][ T1] pnp: PnP ACPI: found 7 devices [ 3.368709][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 3.371389][ T1] NET: Registered PF_INET protocol family [ 3.375777][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.385171][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 327680 bytes, vmalloc) [ 3.389260][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 3.396948][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 3.403730][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 3.408210][ T1] MPTCP token hash table entries: 8192 (order: 7, 720896 bytes, vmalloc) [ 3.412340][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 3.416355][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 3.419292][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.422439][ T1] RPC: Registered named UNIX socket transport module. [ 3.423870][ T1] RPC: Registered udp transport module. [ 3.424677][ T1] RPC: Registered tcp transport module. [ 3.425526][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.429229][ T1] NET: Registered PF_XDP protocol family [ 3.430157][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 3.431250][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 3.432520][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 3.433902][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 3.436412][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.438073][ T1] PCI: CLS 0 bytes, default 64 [ 3.446221][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 3.447708][ T1] software IO TLB: mapped [mem 0x00000000b5c00000-0x00000000b9c00000] (64MB) [ 3.449214][ T1] ACPI: bus type thunderbolt registered [ 3.459307][ T55] kworker/u4:2 (55) used greatest stack depth: 27744 bytes left [ 3.460747][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 3.500641][ T1] kvm: already loaded vendor module 'kvm_intel' [ 3.501684][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6f1c9125, max_idle_ns: 440795292239 ns [ 3.503321][ T1] clocksource: Switched to clocksource tsc [ 3.515370][ T62] kworker/u4:2 (62) used greatest stack depth: 27704 bytes left [ 6.624364][ T1] Initialise system trusted keyrings [ 6.626482][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 6.668412][ T1] zbud: loaded [ 6.678197][ T1] DLM installed [ 6.685014][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 6.696948][ T1] NFS: Registering the id_resolver key type [ 6.698135][ T1] Key type id_resolver registered [ 6.699068][ T1] Key type id_legacy registered [ 6.700355][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 6.701937][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 6.703376][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 6.713332][ T1] Key type cifs.spnego registered [ 6.714240][ T1] Key type cifs.idmap registered [ 6.715590][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 6.718282][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 6.719456][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 6.724397][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 6.725893][ T1] QNX4 filesystem 0.2.3 registered. [ 6.726882][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 6.729388][ T1] fuse: init (API version 7.36) [ 6.733485][ T116] kworker/u4:3 (116) used greatest stack depth: 27264 bytes left [ 6.734711][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 6.736713][ T1] orangefs_init: module version upstream loaded [ 6.738816][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 6.750531][ T1] SGI XFS with ACLs, security attributes, realtime, quota, fatal assert, debug enabled [ 6.763189][ T1] 9p: Installing v9fs 9p2000 file system support [ 6.765464][ T1] NILFS version 2 loaded [ 6.766102][ T1] befs: version: 0.9.3 [ 6.768575][ T1] ocfs2: Registered cluster interface o2cb [ 6.770095][ T1] ocfs2: Registered cluster interface user [ 6.771568][ T1] OCFS2 User DLM kernel interface loaded [ 6.784731][ T1] gfs2: GFS2 installed [ 6.798430][ T1] ceph: loaded (mds proto 32) [ 6.811793][ T1] NET: Registered PF_ALG protocol family [ 6.812911][ T1] xor: automatically using best checksumming function avx [ 6.814244][ T1] async_tx: api initialized (async) [ 6.814999][ T1] Key type asymmetric registered [ 6.815801][ T1] Asymmetric key parser 'x509' registered [ 6.816736][ T1] Asymmetric key parser 'pkcs8' registered [ 6.817708][ T1] Key type pkcs7_test registered [ 6.822075][ T1] alg: self-tests for CTR-KDF (hmac(sha256)) passed [ 6.823550][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240) [ 6.825380][ T1] io scheduler mq-deadline registered [ 6.826333][ T1] io scheduler kyber registered [ 6.827755][ T1] io scheduler bfq registered [ 6.844103][ T148] kworker/u4:3 (148) used greatest stack depth: 26904 bytes left [ 6.852103][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 6.855871][ T1] ACPI: button: Power Button [PWRF] [ 6.858579][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 6.860516][ T1] ACPI: button: Sleep Button [SLPF] [ 6.884867][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 6.886102][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 6.905178][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 6.906496][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 6.924038][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 6.924969][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 6.937309][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 7.054499][ T334] kworker/u4:0 (334) used greatest stack depth: 26784 bytes left [ 7.199696][ T529] kworker/u4:0 (529) used greatest stack depth: 26488 bytes left [ 7.241891][ T588] kworker/u4:2 (588) used greatest stack depth: 25688 bytes left [ 7.331306][ T1] N_HDLC line discipline registered with maxframe=4096 [ 7.332632][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 7.334558][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 7.341059][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 7.347306][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 7.354568][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 7.372531][ T1] Non-volatile memory driver v1.3 [ 7.383428][ T1] Linux agpgart interface v0.103 [ 7.386864][ T1] ACPI: bus type drm_connector registered [ 7.392317][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 7.395010][ T768] [ 7.395409][ T768] ============================= [ 7.396195][ T768] WARNING: suspicious RCU usage [ 7.396854][ T768] 5.17.0-rc6-next-20220307-syzkaller #0 Not tainted [ 7.397752][ T768] ----------------------------- [ 7.398567][ T768] include/linux/cgroup.h:481 suspicious rcu_dereference_check() usage! [ 7.399714][ T768] [ 7.399714][ T768] other info that might help us debug this: [ 7.399714][ T768] [ 7.401158][ T768] [ 7.401158][ T768] rcu_scheduler_active = 2, debug_locks = 1 [ 7.402371][ T768] 1 lock held by card1-crtc0/768: [ 7.403075][ T768] #0: ffff8880b9c39f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 [ 7.404558][ T768] [ 7.404558][ T768] stack backtrace: [ 7.404786][ T768] CPU: 0 PID: 768 Comm: card1-crtc0 Not tainted 5.17.0-rc6-next-20220307-syzkaller #0 [ 7.404786][ T768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 7.404786][ T768] Call Trace: [ 7.404786][ T768] [ 7.404786][ T768] dump_stack_lvl+0xcd/0x134 [ 7.404786][ T768] update_curr_rt+0x655/0x940 [ 7.404786][ T768] dequeue_task_rt+0x2d/0x5d0 [ 7.404786][ T768] ? update_rq_clock+0x10e/0x5e0 [ 7.404786][ T768] ? schedule+0xd2/0x1f0 [ 7.404786][ T768] __schedule+0xbe7/0x4920 [ 7.404786][ T768] ? find_held_lock+0x2d/0x110 [ 7.404786][ T768] ? kthread_worker_fn+0x552/0xcb0 [ 7.404786][ T768] ? io_schedule_timeout+0x140/0x140 [ 7.404786][ T768] ? do_raw_spin_lock+0x120/0x2a0 [ 7.404786][ T768] ? rwlock_bug.part.0+0x90/0x90 [ 7.404786][ T768] schedule+0xd2/0x1f0 [ 7.404786][ T768] kthread_worker_fn+0x5ea/0xcb0 [ 7.404786][ T768] ? kthread_associate_blkcg+0x720/0x720 [ 7.404786][ T768] kthread+0x2e9/0x3a0 [ 7.404786][ T768] ? kthread_complete_and_exit+0x40/0x40 [ 7.404786][ T768] ret_from_fork+0x1f/0x30 [ 7.404786][ T768] [ 7.428400][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 7.490026][ T1] Console: switching to colour frame buffer device 128x48 [ 7.508499][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 7.509836][ T1] usbcore: registered new interface driver udl [ 7.565203][ T1] brd: module loaded [ 7.627562][ T1] loop: module loaded [ 7.710965][ T1] zram: Added device: zram0 [ 7.718333][ T1] null_blk: module loaded [ 7.719501][ T1] Guest personality initialized and is inactive [ 7.720847][ T1] VMCI host device registered (name=vmci, major=10, minor=120) [ 7.722217][ T1] Initialized host personality [ 7.723228][ T1] usbcore: registered new interface driver rtsx_usb [ 7.724942][ T1] usbcore: registered new interface driver viperboard [ 7.726717][ T1] usbcore: registered new interface driver dln2 [ 7.728406][ T1] usbcore: registered new interface driver pn533_usb [ 7.733732][ T1] nfcsim 0.2 initialized [ 7.735082][ T1] usbcore: registered new interface driver port100 [ 7.736466][ T1] usbcore: registered new interface driver nfcmrvl [ 7.742152][ T1] Loading iSCSI transport class v2.0-870. [ 7.773944][ T1] scsi host0: Virtio SCSI HBA [ 7.818323][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 7.824000][ T8] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 7.852083][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 7.855506][ T1] db_root: cannot open: /etc/target [ 7.857272][ T1] slram: not enough parameters. [ 7.864903][ T1] ftl_cs: FTL header not found. [ 7.917387][ T1] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. [ 7.919688][ T1] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. [ 7.921894][ T1] eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) [ 7.930855][ T1] MACsec IEEE 802.1AE [ 7.944246][ T1] tun: Universal TUN/TAP device driver, 1.6 [ 8.000148][ T1] general protection fault, probably for non-canonical address 0xffff000000000800: 0000 [#1] PREEMPT SMP KASAN [ 8.002611][ T1] KASAN: maybe wild-memory-access in range [0xfff8200000004000-0xfff8200000004007] [ 8.004123][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220307-syzkaller #0 [ 8.005572][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 8.007343][ T1] RIP: 0010:kmem_cache_alloc_trace+0x164/0x3f0 [ 8.007454][ T1] Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 ac 01 00 00 48 85 c0 0f 84 a3 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 af 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 8.007454][ T1] RSP: 0000:ffffc90000067820 EFLAGS: 00010246 [ 8.007454][ T1] RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 [ 8.007454][ T1] RDX: 0000000000005079 RSI: 0000000000000400 RDI: 000000000003dc60 [ 8.007454][ T1] RBP: ffff888010c42140 R08: 0000000000000000 R09: 0000000000000000 [ 8.007454][ T1] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [ 8.007454][ T1] R13: 0000000000000dc0 R14: 0000000000000a20 R15: 0000000000000dc0 [ 8.007454][ T1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 8.007454][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.007454][ T1] CR2: 0000000000000000 CR3: 000000000ba8e000 CR4: 00000000003506e0 [ 8.007454][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 8.007454][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 8.007454][ T1] Call Trace: [ 8.007454][ T1] [ 8.007454][ T1] ? kobject_uevent_env+0x235/0x1660 [ 8.007454][ T1] kobject_uevent_env+0x235/0x1660 [ 8.007454][ T1] netdev_queue_update_kobjects+0x3d1/0x4e0 [ 8.007454][ T1] netdev_register_kobject+0x35a/0x430 [ 8.007454][ T1] register_netdevice+0xd9d/0x15b0 [ 8.007454][ T1] ? netdev_change_features+0xb0/0xb0 [ 8.007454][ T1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 8.007454][ T1] ? netif_set_real_num_tx_queues+0x101/0x770 [ 8.007454][ T1] register_netdev+0x2d/0x50 [ 8.007454][ T1] virtnet_probe+0x1056/0x2480 [ 8.007454][ T1] ? virtnet_find_vqs+0xea0/0xea0 [ 8.007454][ T1] virtio_dev_probe+0x577/0x8e0 [ 8.007454][ T1] ? virtio_features_ok+0x110/0x110 [ 8.007454][ T1] really_probe+0x245/0xcc0 [ 8.007454][ T1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 8.007454][ T1] __driver_probe_device+0x338/0x4d0 [ 8.007454][ T1] driver_probe_device+0x4c/0x1a0 [ 8.007454][ T1] __driver_attach+0x22d/0x4e0 [ 8.007454][ T1] ? __device_attach_driver+0x2f0/0x2f0 [ 8.007454][ T1] bus_for_each_dev+0x147/0x1d0 [ 8.007454][ T1] ? subsys_dev_iter_exit+0x20/0x20 [ 8.007454][ T1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 8.007454][ T1] bus_add_driver+0x41d/0x630 [ 8.007454][ T1] driver_register+0x220/0x3a0 [ 8.007454][ T1] ? veth_init+0x11/0x11 [ 8.007454][ T1] virtio_net_driver_init+0x93/0xd2 [ 8.007454][ T1] do_one_initcall+0x103/0x650 [ 8.007454][ T1] ? trace_event_raw_event_initcall_level+0x1f0/0x1f0 [ 8.007454][ T1] ? parameq+0x120/0x170 [ 8.007454][ T1] kernel_init_freeable+0x6b1/0x73a [ 8.007454][ T1] ? rest_init+0x3e0/0x3e0 [ 8.007454][ T1] kernel_init+0x1a/0x1d0 [ 8.007454][ T1] ? rest_init+0x3e0/0x3e0 [ 8.007454][ T1] ret_from_fork+0x1f/0x30 [ 8.007454][ T1] [ 8.007454][ T1] Modules linked in: [ 8.007454][ C1] vkms_vblank_simulate: vblank timer overrun [ 8.007456][ T1093] BUG: unable to handle page fault for address: ffffdc0000000000 [ 8.058641][ T1] ---[ end trace 0000000000000000 ]--- [ 8.058122][ T1093] #PF: supervisor read access in kernel mode [ 8.060082][ T1] RIP: 0010:kmem_cache_alloc_trace+0x164/0x3f0 [ 8.058122][ T1093] #PF: error_code(0x0000) - not-present page [ 8.062158][ T1] Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 ac 01 00 00 48 85 c0 0f 84 a3 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 af 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 8.058122][ T1093] PGD 10c26067 P4D 10c26067 PUD 0 [ 8.068070][ T1] RSP: 0000:ffffc90000067820 EFLAGS: 00010246 [ 8.058122][ T1093] Oops: 0000 [#2] PREEMPT SMP KASAN [ 8.058122][ T1093] CPU: 0 PID: 1093 Comm: kworker/u4:2 Tainted: G D 5.17.0-rc6-next-20220307-syzkaller #0 [ 8.069995][ T1] [ 8.070001][ T1] RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 [ 8.058122][ T1093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 8.072971][ T1] RDX: 0000000000005079 RSI: 0000000000000400 RDI: 000000000003dc60 [ 8.058122][ T1093] RIP: 0010:strnlen+0x3b/0x70 [ 8.074757][ T1] RBP: ffff888010c42140 R08: 0000000000000000 R09: 0000000000000000 [ 8.058122][ T1093] Code: 74 3c 48 bb 00 00 00 00 00 fc ff df 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <0f> b6 14 1a 38 ca 7f 04 84 d2 75 11 80 38 00 75 d9 4c 29 e0 48 83 [ 8.077749][ T1] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [ 8.058122][ T1093] RSP: 0000:ffffc90004ecfdf8 EFLAGS: 00010246 [ 8.079721][ T1] R13: 0000000000000dc0 R14: 0000000000000a20 R15: 0000000000000dc0 [ 8.058122][ T1093] [ 8.058122][ T1093] RAX: ffff000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 8.084387][ T1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 8.058122][ T1093] RDX: 1fffe00000000000 RSI: 0000000000020000 RDI: ffff000000000000 [ 8.058122][ T1093] RBP: ffff000000020000 R08: 0000000000000000 R09: 0000000002e75100 [ 8.086946][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.058122][ T1093] R10: ffffffff81d43db4 R11: 0000000000000000 R12: ffff000000000000 [ 8.058122][ T1093] R13: ffff888148cdfc00 R14: ffff000000000000 R15: 1ffff11003b873a8 [ 8.088696][ T1] CR2: 0000000000000000 CR3: 000000000ba8e000 CR4: 00000000003506e0 [ 8.058122][ T1093] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 8.091149][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 8.058122][ T1093] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.093373][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 8.058122][ T1093] CR2: ffffdc0000000000 CR3: 000000000ba8e000 CR4: 00000000003506f0 [ 8.096176][ T1] Kernel panic - not syncing: Fatal exception [ 8.058122][ T1093] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 8.058122][ T1093] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 8.058122][ T1093] Call Trace: [ 8.058122][ T1093] [ 8.058122][ T1093] copy_string_kernel+0x28/0x300 [ 8.058122][ T1093] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 8.058122][ T1093] ? put_page+0xde/0x280 [ 8.058122][ T1093] copy_strings_kernel+0xb3/0x180 [ 8.058122][ T1093] kernel_execve+0x321/0x490 [ 8.058122][ T1093] call_usermodehelper_exec_async+0x2e3/0x580 [ 8.058122][ T1093] ? _raw_spin_unlock_irq+0x1f/0x40 [ 8.058122][ T1093] ? trace_hardirqs_on+0x5b/0x1c0 [ 8.058122][ T1093] ? umh_complete+0x90/0x90 [ 8.058122][ T1093] ret_from_fork+0x1f/0x30 [ 8.058122][ T1093] [ 8.058122][ T1093] Modules linked in: [ 8.058122][ T1093] CR2: ffffdc0000000000 [ 8.058122][ T1093] ---[ end trace 0000000000000000 ]--- [ 8.058122][ T1093] RIP: 0010:kmem_cache_alloc_trace+0x164/0x3f0 [ 8.058122][ T1093] Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 ac 01 00 00 48 85 c0 0f 84 a3 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 af 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 8.058122][ T1093] RSP: 0000:ffffc90000067820 EFLAGS: 00010246 [ 8.058122][ T1093] RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 [ 8.058122][ T1093] RDX: 0000000000005079 RSI: 0000000000000400 RDI: 000000000003dc60 [ 8.058122][ T1093] RBP: ffff888010c42140 R08: 0000000000000000 R09: 0000000000000000 [ 8.058122][ T1093] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [ 8.058122][ T1093] R13: 0000000000000dc0 R14: 0000000000000a20 R15: 0000000000000dc0 [ 8.058122][ T1093] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 8.058122][ T1093] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.058122][ T1093] CR2: ffffdc0000000000 CR3: 000000000ba8e000 CR4: 00000000003506f0 [ 8.058122][ T1093] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 8.058122][ T1093] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 8.097441][ T1] Shutting down cpus with NMI [ 8.097441][ T1] Kernel Offset: disabled [ 8.097441][ T1] Rebooting in 86400 seconds..