BUG: unable to handle kernel paging request in enqueue_task_fair BUG: unable to handle page fault for address: ffffdc0000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 100026067 P4D 100026067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 257 Comm: kworker/u4:0 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:entity_before kernel/sched/fair.c:585 [inline] RIP: 0010:__entity_less kernel/sched/fair.c:621 [inline] RIP: 0010:rb_add_cached include/linux/rbtree.h:174 [inline] RIP: 0010:__enqueue_entity kernel/sched/fair.c:629 [inline] RIP: 0010:enqueue_entity kernel/sched/fair.c:4454 [inline] RIP: 0010:enqueue_task_fair+0x46d/0x1e50 kernel/sched/fair.c:5757 Code: 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 6d 17 00 00 4c 8b 7b 50 ba 01 00 00 00 eb 03 48 89 c5 48 8d 7d 40 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 9f 10 00 00 4c 3b 7d 40 4c 8d 65 10 78 06 4c RSP: 0000:ffffc90000178de0 EFLAGS: 00010802 RAX: 1fffe00000000008 RBX: ffff888100365600 RCX: 0000000000000220 RDX: 0000000000000000 RSI: ffff8881f6937bf0 RDI: ffff000000000040 RBP: ffff000000000000 R08: 0000000000000000 R09: ffff8881f6937bd0 R10: ffff888100365610 R11: ffff8881f6937b00 R12: ffff88810e760098 R13: dffffc0000000000 R14: ffff8881f6937bc0 R15: 00000000b905ee3c FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000008 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: enqueue_task kernel/sched/core.c:2066 [inline] activate_task kernel/sched/core.c:2091 [inline] ttwu_do_activate+0x181/0x450 kernel/sched/core.c:3670 ttwu_queue kernel/sched/core.c:3875 [inline] try_to_wake_up+0xe39/0x1c20 kernel/sched/core.c:4198 wakeup_softirqd kernel/softirq.c:80 [inline] __do_softirq+0x85f/0x9a9 kernel/softirq.c:595 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202 Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 1e 3c 34 fb 48 89 ef e8 a6 bd 34 fb e8 91 96 56 fb fb bf 01 00 00 00 96 1a 2a fb 65 8b 05 1f 8f 0c 7a 85 c0 74 02 5d c3 0f 1f 44 00 RSP: 0000:ffffc9000179fdd8 EFLAGS: 00000202 RAX: 000000000000009d RBX: dffffc0000000000 RCX: 1ffffffff11bcdf1 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff88810e52de98 R08: 0000000000000001 R09: 0000000000000001 R10: ffffed1021ca5bd3 R11: 0000000000000000 R12: ffff88810e52de98 R13: ffff88810e52d580 R14: 0000000000000000 R15: ffff88810e392780 task_work_run+0xbc/0x1a0 kernel/task_work.c:173 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xad5/0x2930 kernel/exit.c:795 call_usermodehelper_exec_async+0x418/0x580 kernel/umh.c:125 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: CR2: ffffdc0000000008 ---[ end trace 0000000000000000 ]--- RIP: 0010:entity_before kernel/sched/fair.c:585 [inline] RIP: 0010:__entity_less kernel/sched/fair.c:621 [inline] RIP: 0010:rb_add_cached include/linux/rbtree.h:174 [inline] RIP: 0010:__enqueue_entity kernel/sched/fair.c:629 [inline] RIP: 0010:enqueue_entity kernel/sched/fair.c:4454 [inline] RIP: 0010:enqueue_task_fair+0x46d/0x1e50 kernel/sched/fair.c:5757 Code: 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 6d 17 00 00 4c 8b 7b 50 ba 01 00 00 00 eb 03 48 89 c5 48 8d 7d 40 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 9f 10 00 00 4c 3b 7d 40 4c 8d 65 10 78 06 4c RSP: 0000:ffffc90000178de0 EFLAGS: 00010802 RAX: 1fffe00000000008 RBX: ffff888100365600 RCX: 0000000000000220 RDX: 0000000000000000 RSI: ffff8881f6937bf0 RDI: ffff000000000040 RBP: ffff000000000000 R08: 0000000000000000 R09: ffff8881f6937bd0 R10: ffff888100365610 R11: ffff8881f6937b00 R12: ffff88810e760098 R13: dffffc0000000000 R14: ffff8881f6937bc0 R15: 00000000b905ee3c FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000008 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 89 f8 mov %edi,%eax 2: 48 c1 e8 03 shr $0x3,%rax 6: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) b: 0f 85 6d 17 00 00 jne 0x177e 11: 4c 8b 7b 50 mov 0x50(%rbx),%r15 15: ba 01 00 00 00 mov $0x1,%edx 1a: eb 03 jmp 0x1f 1c: 48 89 c5 mov %rax,%rbp 1f: 48 8d 7d 40 lea 0x40(%rbp),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 0f 85 9f 10 00 00 jne 0x10d4 35: 4c 3b 7d 40 cmp 0x40(%rbp),%r15 39: 4c 8d 65 10 lea 0x10(%rbp),%r12 3d: 78 06 js 0x45 3f: 4c rex.WR 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@10.128.1.125" "pwd"]: exit status 255 ssh: connect to host 10.128.1.125 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.ci2-upstream-usb-test-job-test-job-1 port 1 (session ID: c2c5a0ab474b77047524f265146b728c22cfab3adbae80be3a7335c30bfbc42f, 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 d0652ae4-93e9-c513-40e9-e51ba5edd636 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 0x000f2490: 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 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #0 SMP PREEMPT_DYNAMIC 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] Malformed early option 'numa' [ 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 08/26/2022 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000008][ T0] kvm-clock: using sched offset of 2530731521 cycles [ 0.000867][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003708][ T0] tsc: Detected 2200.202 MHz processor [ 0.009028][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.010380][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.011709][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.018526][ T0] found SMP MP-table at [mem 0x000f2750-0x000f275f] [ 0.019781][ T0] Using GB pages for direct mapping [ 0.022193][ T0] ACPI: Early table checksum verification disabled [ 0.023314][ T0] ACPI: RSDP 0x00000000000F24D0 000014 (v00 Google) [ 0.024540][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.026535][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.028413][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.030278][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.031523][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.032545][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.034003][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.036078][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.038584][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.041476][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.043304][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.045171][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.047019][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.048588][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.050430][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.051860][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.053247][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.055035][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.055976][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.056818][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.058075][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.059241][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.060432][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.062321][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.064118][ T0] NODE_DATA(0) allocated [mem 0x23fffa000-0x23fffdfff] [ 0.102225][ T0] Zone ranges: [ 0.102903][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.103903][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.105148][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.106391][ T0] Movable zone start for each node [ 0.107420][ T0] Early memory node ranges [ 0.108098][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.109778][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.111364][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff] [ 0.113060][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff] [ 0.114791][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.114925][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.176684][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.491360][ T0] kasan: KernelAddressSanitizer initialized [ 0.494872][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.495742][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.497148][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.498706][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.500770][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.502008][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.503777][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.505661][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.507420][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.508504][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.510077][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.511604][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.513296][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.514797][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.516381][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.517890][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.519322][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.520572][ T0] Booting paravirtualized kernel on KVM [ 0.521634][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.562651][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.565240][ T0] percpu: Embedded 67 pages/cpu s233568 r8192 d32672 u1048576 [ 0.567595][ T0] kvm-guest: PV spinlocks enabled [ 0.568859][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.571361][ T0] Fallback order for Node 0: 0 [ 0.572267][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2064125 [ 0.573316][ T0] Policy zone: Normal [ 0.573834][ 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 msr.allow_writes=off 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 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=8 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.590910][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.595692][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.598334][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.599669][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.603126][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.604539][ T0] software IO TLB: area num 2. [ 1.441734][ T0] Memory: 6921704K/8388204K available (83983K kernel code, 22480K rwdata, 19020K rodata, 2220K init, 32260K bss, 1466244K reserved, 0K cma-reserved) [ 1.444533][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 1.452443][ T0] Dynamic Preempt: voluntary [ 1.453996][ T0] Running RCU self tests [ 1.454844][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.455904][ T0] rcu: RCU lockdep checking is enabled. [ 1.456749][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.457876][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.458937][ T0] rcu: RCU debug extended QS entry/exit. [ 1.459809][ T0] All grace periods are expedited (rcu_expedited). [ 1.460656][ T0] Trampoline variant of Tasks RCU enabled. [ 1.461585][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.462994][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.482961][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.485212][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.486443][ T0] random: crng init done [ 1.488069][ T0] Console: colour VGA+ 80x25 [ 1.488891][ T0] printk: console [ttyS0] enabled [ 1.488891][ T0] printk: console [ttyS0] enabled [ 1.490383][ T0] printk: bootconsole [earlyser0] disabled [ 1.490383][ T0] printk: bootconsole [earlyser0] disabled [ 1.492238][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.493628][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.494399][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.495316][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.496081][ T0] ... CLASSHASH_SIZE: 4096 [ 1.496865][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.497686][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.498421][ T0] ... CHAINHASH_SIZE: 131072 [ 1.499226][ T0] memory used by lock dependency info: 20657 kB [ 1.500385][ T0] memory used for stack traces: 8320 kB [ 1.501148][ T0] per task-struct memory footprint: 1920 bytes [ 1.502220][ T0] ACPI: Core revision 20220331 [ 1.503540][ T0] APIC: Switch to symmetric I/O mode setup [ 1.509447][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.510978][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6f1c9125, max_idle_ns: 440795292239 ns [ 1.512966][ T0] Calibrating delay loop (skipped) preset value.. 4400.40 BogoMIPS (lpj=22002020) [ 1.522950][ T0] pid_max: default: 32768 minimum: 301 [ 1.524447][ T0] LSM: Security Framework initializing [ 1.525479][ T0] landlock: Up and running. [ 1.526096][ T0] Yama: becoming mindful. [ 1.526796][ T0] TOMOYO Linux initialized [ 1.527627][ T0] AppArmor: AppArmor initialized [ 1.529008][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.530197][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.535810][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.536987][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.538032][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.539696][ T0] Spectre V2 : Mitigation: IBRS [ 1.540352][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.541772][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.542966][ T0] RETBleed: Mitigation: IBRS [ 1.543661][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.544946][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.546296][ T0] MDS: Mitigation: Clear CPU buffers [ 1.547137][ T0] TAA: Mitigation: Clear CPU buffers [ 1.547901][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.550705][ T0] Freeing SMP alternatives memory: 60K [ 1.672303][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.672938][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.672938][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.672938][ T1] Running RCU-tasks wait API self tests [ 1.773077][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.775725][ T1] rcu: Hierarchical SRCU implementation. [ 1.776619][ T1] rcu: Max phase no-delay instances is 1000. [ 1.780744][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.782445][ T1] smp: Bringing up secondary CPUs ... [ 1.784170][ T1] x86: Booting SMP configuration: [ 1.785017][ T1] .... node #0, CPUs: #1 [ 1.786929][ 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. [ 1.786929][ 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. [ 1.787698][ T1] MMIO Stale Data CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html for more details. [ 1.793202][ T1] smp: Brought up 1 node, 2 CPUs [ 1.794118][ T1] smpboot: Max logical packages: 1 [ 1.795077][ T1] smpboot: Total of 2 processors activated (8800.80 BogoMIPS) [ 1.839120][ T1] allocated 134217728 bytes of page_ext [ 1.840364][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.845024][ T1] Node 0, zone DMA32: page owner found early allocated 15 pages [ 1.869911][ T1] Node 0, zone Normal: page owner found early allocated 33979 pages [ 1.872955][ T1] devtmpfs: initialized [ 1.883207][ T11] Callback from call_rcu_tasks() invoked. [ 1.893039][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.894791][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.898753][ T1] PM: RTC time: 00:43:45, date: 2022-09-04 [ 1.900862][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 1.907151][ T1] audit: initializing netlink subsys (disabled) [ 1.908322][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 1.908322][ T1] thermal_sys: Registered thermal governor 'user_space' [ 1.908322][ T1] cpuidle: using governor menu [ 1.913040][ T25] audit: type=2000 audit(1662252225.086:1): state=initialized audit_enabled=0 res=1 [ 1.919701][ T1] PCI: Using configuration type 1 for base access [ 2.062961][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.062961][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.073287][ T1] ACPI: Added _OSI(Module Device) [ 2.074177][ T1] ACPI: Added _OSI(Processor Device) [ 2.074994][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.075923][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.076919][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.078000][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.078911][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.177653][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.658337][ T1] ACPI: Interpreter enabled [ 3.659443][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.660172][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.661291][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.662951][ T1] PCI: Using E820 reservations for host bridge windows [ 3.666090][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.736540][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.737720][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.739670][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.741944][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.749853][ T1] PCI host bridge to bus 0000:00 [ 3.750767][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.752975][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.754356][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.755901][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.757132][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.758659][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 3.764289][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 3.787036][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 3.806176][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.810753][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 3.819706][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 3.826784][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 3.844973][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 3.855519][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 3.861787][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 3.881780][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 3.892993][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 3.918533][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 3.923517][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 3.932127][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 3.937696][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 3.954977][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 3.964212][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 3.970144][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 3.998683][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.003857][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.010491][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.016308][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.020155][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.032979][ T1] iommu: Default domain type: Translated [ 4.034365][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 4.037004][ T1] SCSI subsystem initialized [ 4.038367][ T1] ACPI: bus type USB registered [ 4.038367][ T1] usbcore: registered new interface driver usbfs [ 4.038367][ T1] usbcore: registered new interface driver hub [ 4.043101][ T1] usbcore: registered new device driver usb [ 4.045636][ T1] mc: Linux media interface: v0.10 [ 4.046779][ T1] videodev: Linux video capture interface: v2.00 [ 4.048780][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.050042][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.053085][ T1] PTP clock support registered [ 4.054728][ T1] EDAC MC: Ver: 3.0.0 [ 4.055432][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.063591][ T1] Bluetooth: Core ver 2.22 [ 4.064609][ T1] NET: Registered PF_BLUETOOTH protocol family [ 4.066132][ T1] Bluetooth: HCI device and connection manager initialized [ 4.067431][ T1] Bluetooth: HCI socket layer initialized [ 4.069320][ T1] Bluetooth: L2CAP socket layer initialized [ 4.070762][ T1] NET: Registered PF_ATMPVC protocol family [ 4.072094][ T1] NET: Registered PF_ATMSVC protocol family [ 4.073178][ T1] NetLabel: Initializing [ 4.073904][ T1] NetLabel: domain hash size = 128 [ 4.074790][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.076495][ T1] NetLabel: unlabeled traffic allowed by default [ 4.080083][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.081492][ T1] NET: Registered PF_NFC protocol family [ 4.082701][ T1] PCI: Using ACPI for IRQ routing [ 4.083580][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.084940][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.086230][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.088391][ T1] vgaarb: loaded [ 4.094347][ T1] clocksource: Switched to clocksource kvm-clock [ 4.098683][ T1] VFS: Disk quotas dquot_6.6.0 [ 4.100536][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.103788][ T1] TOMOYO: 2.6.0 [ 4.104934][ T1] Mandatory Access Control activated. [ 4.110037][ T1] AppArmor: AppArmor Filesystem Enabled [ 4.112177][ T1] pnp: PnP ACPI init [ 4.132512][ T1] pnp: PnP ACPI: found 7 devices [ 4.182002][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.185728][ T1] NET: Registered PF_INET protocol family [ 4.188740][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 4.202140][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 4.205784][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 4.209786][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 4.219036][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 4.227344][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.231455][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.236434][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.240589][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.245070][ T1] RPC: Registered named UNIX socket transport module. [ 4.247744][ T1] RPC: Registered udp transport module. [ 4.249521][ T1] RPC: Registered tcp transport module. [ 4.251776][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.256652][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.258749][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 4.260671][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 4.262731][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 4.266003][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.268199][ T1] PCI: CLS 0 bytes, default 64 [ 4.270062][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.272053][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) [ 4.281293][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.284150][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6f1c9125, max_idle_ns: 440795292239 ns [ 4.287864][ T1] clocksource: Switched to clocksource tsc [ 4.294083][ T42] kworker/u4:2 (42) used greatest stack depth: 27208 bytes left [ 4.485777][ T1] Initialise system trusted keyrings [ 4.488150][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 4.536724][ T1] NFS: Registering the id_resolver key type [ 4.539069][ T1] Key type id_resolver registered [ 4.540272][ T1] Key type id_legacy registered [ 4.541991][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.553843][ T1] Key type asymmetric registered [ 4.555094][ T1] Asymmetric key parser 'x509' registered [ 4.557003][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 4.559153][ T1] io scheduler mq-deadline registered [ 4.560524][ T1] io scheduler kyber registered [ 4.576139][ T1] usbcore: registered new interface driver udlfb [ 4.579078][ T1] usbcore: registered new interface driver smscufx [ 4.582547][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.586526][ T1] ACPI: button: Power Button [PWRF] [ 4.588843][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.591632][ T1] ACPI: button: Sleep Button [SLPF] [ 4.612578][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.615387][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.633220][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.634511][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.651748][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.653551][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 4.667110][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 4.676803][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.679785][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.683563][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.687118][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.690013][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.696931][ T1] Non-volatile memory driver v1.3 [ 4.713747][ T1] Linux agpgart interface v0.103 [ 4.717279][ T1] ACPI: bus type drm_connector registered [ 4.723548][ T1] usbcore: registered new interface driver udl [ 4.757995][ T1] loop: module loaded [ 4.760160][ T1] usbcore: registered new interface driver rtsx_usb [ 4.763185][ T1] usbcore: registered new interface driver viperboard [ 4.765813][ T1] usbcore: registered new interface driver dln2 [ 4.768276][ T1] usbcore: registered new interface driver pn533_usb [ 4.769918][ T1] usbcore: registered new interface driver port100 [ 4.772327][ T1] usbcore: registered new interface driver nfcmrvl [ 4.791014][ T1] scsi host0: Virtio SCSI HBA [ 4.835458][ T1] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 4.965848][ T8] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 4.967783][ T8] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 4.969130][ T8] sd 0:0:1:0: [sda] Write Protect is off [ 4.970805][ T8] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 4.989758][ T8] sda: sda1 [ 4.991709][ T8] sd 0:0:1:0: [sda] Attached SCSI disk [ 4.995229][ T1] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.004782][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 5.007108][ T1] db_root: cannot open: /etc/target [ 5.077776][ C1] BUG: unable to handle page fault for address: ffffdc0000000008 [ 5.078657][ T258] list_del corruption. next->prev should be ffff88810e744b68, but was ffff000000000000. (next=ffff88810e761268) [ 5.080004][ C1] #PF: supervisor read access in kernel mode [ 5.083494][ T258] ------------[ cut here ]------------ [ 5.085058][ C1] #PF: error_code(0x0000) - not-present page [ 5.086672][ T258] kernel BUG at lib/list_debug.c:62! [ 5.087312][ C1] PGD 100026067 P4D 100026067 PUD 0 [ 5.087312][ C1] Oops: 0000 [#1] PREEMPT SMP KASAN [ 5.087312][ C1] CPU: 1 PID: 257 Comm: kworker/u4:0 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.087312][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 5.087312][ C1] RIP: 0010:enqueue_task_fair+0x46d/0x1e50 [ 5.087312][ C1] Code: 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 6d 17 00 00 4c 8b 7b 50 ba 01 00 00 00 eb 03 48 89 c5 48 8d 7d 40 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 9f 10 00 00 4c 3b 7d 40 4c 8d 65 10 78 06 4c [ 5.087312][ C1] RSP: 0000:ffffc90000178de0 EFLAGS: 00010802 [ 5.087312][ C1] RAX: 1fffe00000000008 RBX: ffff888100365600 RCX: 0000000000000220 [ 5.087312][ C1] RDX: 0000000000000000 RSI: ffff8881f6937bf0 RDI: ffff000000000040 [ 5.087312][ C1] RBP: ffff000000000000 R08: 0000000000000000 R09: ffff8881f6937bd0 [ 5.087312][ C1] R10: ffff888100365610 R11: ffff8881f6937b00 R12: ffff88810e760098 [ 5.087312][ C1] R13: dffffc0000000000 R14: ffff8881f6937bc0 R15: 00000000b905ee3c [ 5.087312][ C1] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.087312][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.087312][ C1] CR2: ffffdc0000000008 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.087312][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.087312][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.087312][ C1] Call Trace: [ 5.087312][ C1] [ 5.087312][ C1] ttwu_do_activate+0x181/0x450 [ 5.087312][ C1] try_to_wake_up+0xe39/0x1c20 [ 5.087312][ C1] ? push_cpu_stop+0x9e0/0x9e0 [ 5.087312][ C1] ? __do_softirq+0x7a8/0x9a9 [ 5.087312][ C1] __do_softirq+0x85f/0x9a9 [ 5.087312][ C1] __irq_exit_rcu+0x113/0x170 [ 5.087312][ C1] irq_exit_rcu+0x5/0x20 [ 5.087312][ C1] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 5.087312][ C1] [ 5.087312][ C1] [ 5.087312][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 5.087312][ C1] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 5.087312][ C1] Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 1e 3c 34 fb 48 89 ef e8 a6 bd 34 fb e8 91 96 56 fb fb bf 01 00 00 00 96 1a 2a fb 65 8b 05 1f 8f 0c 7a 85 c0 74 02 5d c3 0f 1f 44 00 [ 5.087312][ C1] RSP: 0000:ffffc9000179fdd8 EFLAGS: 00000202 [ 5.087312][ C1] RAX: 000000000000009d RBX: dffffc0000000000 RCX: 1ffffffff11bcdf1 [ 5.087312][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 [ 5.087312][ C1] RBP: ffff88810e52de98 R08: 0000000000000001 R09: 0000000000000001 [ 5.087312][ C1] R10: ffffed1021ca5bd3 R11: 0000000000000000 R12: ffff88810e52de98 [ 5.087312][ C1] R13: ffff88810e52d580 R14: 0000000000000000 R15: ffff88810e392780 [ 5.087312][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 5.087312][ C1] task_work_run+0xbc/0x1a0 [ 5.087312][ C1] do_exit+0xad5/0x2930 [ 5.087312][ C1] ? kasan_quarantine_put+0xf5/0x210 [ 5.087312][ C1] ? kasan_quarantine_put+0x31/0x210 [ 5.087312][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 5.087312][ C1] ? mm_update_next_owner+0x7a0/0x7a0 [ 5.087312][ C1] ? umh_complete+0x7b/0x90 [ 5.087312][ C1] ? kfree+0xca/0x5c0 [ 5.087312][ C1] ? kernel_execve+0x40c/0x500 [ 5.087312][ C1] call_usermodehelper_exec_async+0x418/0x580 [ 5.087312][ C1] ? umh_complete+0x90/0x90 [ 5.087312][ C1] ret_from_fork+0x1f/0x30 [ 5.087312][ C1] [ 5.087312][ C1] Modules linked in: [ 5.087312][ C1] CR2: ffffdc0000000008 [ 5.087312][ C1] ---[ end trace 0000000000000000 ]--- [ 5.087315][ T258] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 5.087312][ C1] RIP: 0010:enqueue_task_fair+0x46d/0x1e50 [ 5.087315][ T258] CPU: 0 PID: 258 Comm: kworker/u4:1 Tainted: G D 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.087312][ C1] Code: 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 6d 17 00 00 4c 8b 7b 50 ba 01 00 00 00 eb 03 48 89 c5 48 8d 7d 40 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 9f 10 00 00 4c 3b 7d 40 4c 8d 65 10 78 06 4c [ 5.087315][ T258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 5.087312][ C1] RSP: 0000:ffffc90000178de0 EFLAGS: 00010802 [ 5.087315][ T258] RIP: 0010:__list_del_entry_valid.cold+0x70/0x72 [ 5.087312][ C1] RAX: 1fffe00000000008 RBX: ffff888100365600 RCX: 0000000000000220 [ 5.087315][ T258] Code: fc ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 b4 62 86 e8 c7 1e fc ff 0f 0b 4c 89 e9 48 89 ee 48 c7 c7 c0 b5 62 86 e8 b3 1e fc ff <0f> 0b 83 c3 01 b8 ff ff 37 00 89 1d 22 0a ce 05 48 c1 e0 2a 65 48 [ 5.087312][ C1] RDX: 0000000000000000 RSI: ffff8881f6937bf0 RDI: ffff000000000040 [ 5.087315][ T258] RSP: 0000:ffffc9000177fd70 EFLAGS: 00010086 [ 5.087312][ C1] RBP: ffff000000000000 R08: 0000000000000000 R09: ffff8881f6937bd0 [ 5.087315][ T258] RAX: 000000000000006d RBX: ffff88810e743900 RCX: 0000000000000000 [ 5.087312][ C1] R10: ffff888100365610 R11: ffff8881f6937b00 R12: ffff88810e760098 [ 5.087315][ T258] RDX: ffff88810e743900 RSI: ffffffff812c97e8 RDI: fffff520002effa0 [ 5.087312][ C1] R13: dffffc0000000000 R14: ffff8881f6937bc0 R15: 00000000b905ee3c [ 5.087315][ T258] RBP: ffff88810e744b68 R08: 000000000000006d R09: 0000000000000000 [ 5.087312][ C1] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.087315][ T258] R10: 0000000080000001 R11: 6c65645f7473696c R12: ffff88810e52e7e8 [ 5.087312][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.087315][ T258] R13: ffff88810e761268 R14: ffffffff87ad4c60 R15: 0000000000000000 [ 5.087312][ C1] CR2: ffffdc0000000008 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.087315][ T258] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 5.087312][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.087315][ T258] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.087312][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.087315][ T258] CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0 [ 5.087312][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 5.087315][ T258] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.087315][ T258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.087315][ T258] Call Trace: [ 5.087315][ T258] [ 5.087315][ T258] css_set_move_task+0x108/0x780 [ 5.087315][ T258] cgroup_exit+0xc0/0x910 [ 5.087315][ T258] ? task_work_run+0x97/0x1a0 [ 5.087315][ T258] do_exit+0xaed/0x2930 [ 5.087315][ T258] ? trace_hardirqs_on+0x2d/0x120 [ 5.087315][ T258] ? mm_update_next_owner+0x7a0/0x7a0 [ 5.087315][ T258] ? umh_complete+0x7b/0x90 [ 5.087315][ T258] ? kfree+0xca/0x5c0 [ 5.087315][ T258] ? kernel_execve+0x40c/0x500 [ 5.087315][ T258] call_usermodehelper_exec_async+0x418/0x580 [ 5.087315][ T258] ? trace_hardirqs_on+0x2d/0x120 [ 5.087315][ T258] ? umh_complete+0x90/0x90 [ 5.087315][ T258] ret_from_fork+0x1f/0x30 [ 5.087315][ T258] [ 5.087315][ T258] Modules linked in: [ 5.087315][ T258] ---[ end trace 0000000000000000 ]--- [ 5.087315][ T258] RIP: 0010:enqueue_task_fair+0x46d/0x1e50 [ 5.087315][ T258] Code: 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 6d 17 00 00 4c 8b 7b 50 ba 01 00 00 00 eb 03 48 89 c5 48 8d 7d 40 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 9f 10 00 00 4c 3b 7d 40 4c 8d 65 10 78 06 4c [ 5.087315][ T258] RSP: 0000:ffffc90000178de0 EFLAGS: 00010802 [ 5.087315][ T258] RAX: 1fffe00000000008 RBX: ffff888100365600 RCX: 0000000000000220 [ 5.087315][ T258] RDX: 0000000000000000 RSI: ffff8881f6937bf0 RDI: ffff000000000040 [ 5.087315][ T258] RBP: ffff000000000000 R08: 0000000000000000 R09: ffff8881f6937bd0 [ 5.087315][ T258] R10: ffff888100365610 R11: ffff8881f6937b00 R12: ffff88810e760098 [ 5.087315][ T258] R13: dffffc0000000000 R14: ffff8881f6937bc0 R15: 00000000b905ee3c [ 5.087315][ T258] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 5.087315][ T258] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.087315][ T258] CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0 [ 5.087315][ T258] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.087315][ T258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.087312][ C1] Shutting down cpus with NMI [ 5.087312][ C1] Kernel Offset: disabled [ 5.087312][ C1] Rebooting in 86400 seconds.. syzkaller build log: go env (err=) GO111MODULE="auto" GOARCH="amd64" GOBIN="" GOCACHE="/syzkaller/.cache/go-build" GOENV="/syzkaller/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/syzkaller/jobs/linux/gopath/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs/linux/gopath" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.17" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build1703430594=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 85f267515 nothing to commit, working tree clean export BUILDOS=linux export NATIVEBUILDOS=linux export HOSTOS=linux export HOSTARCH=amd64 export TARGETOS=linux export TARGETARCH=amd64 export TARGETVMARCH=amd64 export CC=gcc export ADDCFLAGS=-O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static export NCORES=32 export EXE= export NATIVEBUILDOS=linux GOOS=linux GOARCH=amd64 go install ./syz-fuzzer make fuzzer execprog stress executor make[1]: Entering directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller' export BUILDOS=linux export NATIVEBUILDOS=linux export HOSTOS=linux export HOSTARCH=amd64 export TARGETOS=linux export TARGETARCH=amd64 export TARGETVMARCH=amd64 export CC=gcc export ADDCFLAGS=-O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static export NCORES=32 export EXE= export NATIVEBUILDOS=linux make[1]: warning: -j32 forced in makefile: resetting jobserver mode. GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=85f267515d439552478cbfcdee7e4d0609ff7310 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Fri Dec 6 16:55:10 2019 +0100'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=85f267515d439552478cbfcdee7e4d0609ff7310 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Fri Dec 6 16:55:10 2019 +0100'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=85f267515d439552478cbfcdee7e4d0609ff7310 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Fri Dec 6 16:55:10 2019 +0100'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"85f267515d439552478cbfcdee7e4d0609ff7310\" make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'