BUG: unable to handle kernel paging request in put_prev_entity BUG: unable to handle page fault for address: ffffdc0000000001 #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: 246 Comm: kworker/u4:1 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:rb_insert_color+0x6d/0x7a0 lib/rbtree.c:436 Code: 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 48 05 00 00 48 8b 2b 40 f6 c5 01 0f 85 81 01 00 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 01 05 00 00 4c 8b 75 08 49 39 de 0f 84 6d 01 RSP: 0000:ffffc9000162f5b8 EFLAGS: 00010802 RAX: 1fffe00000000001 RBX: ffff88810e6b8090 RCX: 1ffff11021cb8014 RDX: 1ffff11021cb8012 RSI: ffff8881f6937bf0 RDI: ffff000000000008 RBP: ffff000000000000 R08: ffff88810e5c0090 R09: ffff8881f6937bc0 R10: ffffffff89ca5057 R11: 0000000000000001 R12: ffff88810e5c0090 R13: dffffc0000000000 R14: dffffc0000000000 R15: 00000000ba386b06 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000001 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rb_insert_color_cached include/linux/rbtree.h:114 [inline] rb_add_cached include/linux/rbtree.h:183 [inline] __enqueue_entity kernel/sched/fair.c:629 [inline] put_prev_entity+0x1d4/0x4c0 kernel/sched/fair.c:4722 pick_next_task_fair+0xa42/0xf80 kernel/sched/fair.c:7443 __pick_next_task kernel/sched/core.c:5804 [inline] pick_next_task kernel/sched/core.c:6313 [inline] __schedule+0x3a3/0x26f0 kernel/sched/core.c:6458 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6663 __cond_resched+0x13/0x20 kernel/sched/core.c:8299 might_resched include/linux/kernel.h:110 [inline] dput+0x50/0xdb0 fs/dcache.c:897 handle_mounts fs/namei.c:1548 [inline] step_into+0x10bb/0x20d0 fs/namei.c:1831 walk_component+0xf5/0x5a0 fs/namei.c:1999 link_path_walk.part.0+0x7e6/0xf60 fs/namei.c:2320 link_path_walk fs/namei.c:2245 [inline] path_openat+0x262/0x28f0 fs/namei.c:3687 do_filp_open+0x1b6/0x400 fs/namei.c:3718 do_open_execat+0x116/0x730 fs/exec.c:919 bprm_execve fs/exec.c:1819 [inline] bprm_execve+0x48c/0x1960 fs/exec.c:1806 kernel_execve+0x3ea/0x500 fs/exec.c:2009 call_usermodehelper_exec_async+0x2e3/0x580 kernel/umh.c:112 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: CR2: ffffdc0000000001 ---[ end trace 0000000000000000 ]--- RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:rb_insert_color+0x6d/0x7a0 lib/rbtree.c:436 Code: 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 48 05 00 00 48 8b 2b 40 f6 c5 01 0f 85 81 01 00 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 01 05 00 00 4c 8b 75 08 49 39 de 0f 84 6d 01 RSP: 0000:ffffc9000162f5b8 EFLAGS: 00010802 RAX: 1fffe00000000001 RBX: ffff88810e6b8090 RCX: 1ffff11021cb8014 RDX: 1ffff11021cb8012 RSI: ffff8881f6937bf0 RDI: ffff000000000008 RBP: ffff000000000000 R08: ffff88810e5c0090 R09: ffff8881f6937bc0 R10: ffffffff89ca5057 R11: 0000000000000001 R12: ffff88810e5c0090 R13: dffffc0000000000 R14: dffffc0000000000 R15: 00000000ba386b06 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000001 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 89 d8 mov %rbx,%rax 3: 48 c1 e8 03 shr $0x3,%rax 7: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) c: 0f 85 48 05 00 00 jne 0x55a 12: 48 8b 2b mov (%rbx),%rbp 15: 40 f6 c5 01 test $0x1,%bpl 19: 0f 85 81 01 00 00 jne 0x1a0 1f: 48 8d 7d 08 lea 0x8(%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 01 05 00 00 jne 0x536 35: 4c 8b 75 08 mov 0x8(%rbp),%r14 39: 49 39 de cmp %rbx,%r14 3c: 0f .byte 0xf 3d: 84 6d 01 test %ch,0x1(%rbp) 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@10.128.10.49" "pwd"]: exit status 255 ssh: connect to host 10.128.10.49 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-2 port 1 (session ID: 6bc9297c07cb79384ad58784fb7b914cc001c3bbc4b61658840ee83933ab29f6, 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 ddd03948-a79d-6159-055f-1d61b1d4689b 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 07/22/2022 [ 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 2887765522 cycles [ 0.001145][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.004907][ T0] tsc: Detected 2200.162 MHz processor [ 0.010843][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.011993][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.013432][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.020691][ T0] found SMP MP-table at [mem 0x000f2750-0x000f275f] [ 0.022639][ T0] Using GB pages for direct mapping [ 0.025438][ T0] ACPI: Early table checksum verification disabled [ 0.026856][ T0] ACPI: RSDP 0x00000000000F24D0 000014 (v00 Google) [ 0.028202][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.030480][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.032428][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.034027][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.035379][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.036732][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.038261][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.040145][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.042174][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.044398][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.045670][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.047767][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.049105][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.050477][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.052158][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.053544][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.054770][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.056699][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.057519][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.059478][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.060880][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.062727][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.064147][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.067143][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.069684][ T0] NODE_DATA(0) allocated [mem 0x23fffa000-0x23fffdfff] [ 0.109850][ T0] Zone ranges: [ 0.111151][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.113012][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.114617][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.116672][ T0] Movable zone start for each node [ 0.117836][ T0] Early memory node ranges [ 0.119034][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.120601][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.121975][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff] [ 0.124197][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff] [ 0.127028][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.127207][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.190557][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.507279][ T0] kasan: KernelAddressSanitizer initialized [ 0.510301][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.511398][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.512610][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.514227][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.515544][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.517325][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.518859][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.520824][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.522727][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.523978][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.525953][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.527151][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.528782][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.531303][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.533383][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.535381][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.537214][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.538938][ T0] Booting paravirtualized kernel on KVM [ 0.540207][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.581489][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.584187][ T0] percpu: Embedded 67 pages/cpu s233568 r8192 d32672 u1048576 [ 0.585674][ T0] kvm-guest: PV spinlocks enabled [ 0.586702][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.588169][ T0] Fallback order for Node 0: 0 [ 0.589368][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2064125 [ 0.591110][ T0] Policy zone: Normal [ 0.592170][ 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 [ 0.614518][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.620363][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.623978][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.625833][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.629945][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.631837][ T0] software IO TLB: area num 2. [ 1.454868][ T0] Memory: 6921704K/8388204K available (83983K kernel code, 22480K rwdata, 19020K rodata, 2220K init, 32260K bss, 1466244K reserved, 0K cma-reserved) [ 1.459242][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 1.467499][ T0] Dynamic Preempt: voluntary [ 1.469328][ T0] Running RCU self tests [ 1.469989][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.471517][ T0] rcu: RCU lockdep checking is enabled. [ 1.473256][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.474649][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.476648][ T0] rcu: RCU debug extended QS entry/exit. [ 1.478243][ T0] All grace periods are expedited (rcu_expedited). [ 1.480267][ T0] Trampoline variant of Tasks RCU enabled. [ 1.481758][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.483981][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.504431][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.506322][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.507986][ T0] random: crng init done [ 1.509667][ T0] Console: colour VGA+ 80x25 [ 1.510603][ T0] printk: console [ttyS0] enabled [ 1.510603][ T0] printk: console [ttyS0] enabled [ 1.513486][ T0] printk: bootconsole [earlyser0] disabled [ 1.513486][ T0] printk: bootconsole [earlyser0] disabled [ 1.515779][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.517820][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.518948][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.519904][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.521320][ T0] ... CLASSHASH_SIZE: 4096 [ 1.522285][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.523409][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.524705][ T0] ... CHAINHASH_SIZE: 131072 [ 1.526106][ T0] memory used by lock dependency info: 20657 kB [ 1.527259][ T0] memory used for stack traces: 8320 kB [ 1.528506][ T0] per task-struct memory footprint: 1920 bytes [ 1.529893][ T0] ACPI: Core revision 20220331 [ 1.531233][ T0] APIC: Switch to symmetric I/O mode setup [ 1.537326][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.538886][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6cbb9648, max_idle_ns: 440795209148 ns [ 1.541557][ T0] Calibrating delay loop (skipped) preset value.. 4400.32 BogoMIPS (lpj=22001620) [ 1.543650][ T0] pid_max: default: 32768 minimum: 301 [ 1.545131][ T0] LSM: Security Framework initializing [ 1.546195][ T0] landlock: Up and running. [ 1.547230][ T0] Yama: becoming mindful. [ 1.548278][ T0] TOMOYO Linux initialized [ 1.549190][ T0] AppArmor: AppArmor initialized [ 1.551550][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.552953][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.557630][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.559238][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.561302][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.561600][ T0] Spectre V2 : Mitigation: IBRS [ 1.562687][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.564949][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.566362][ T0] RETBleed: Mitigation: IBRS [ 1.567121][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.568551][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.571586][ T0] MDS: Mitigation: Clear CPU buffers [ 1.572910][ T0] TAA: Mitigation: Clear CPU buffers [ 1.573845][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.578169][ T0] Freeing SMP alternatives memory: 60K [ 1.700103][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.701530][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.701530][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.701530][ T1] Running RCU-tasks wait API self tests [ 1.801717][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.804935][ T1] rcu: Hierarchical SRCU implementation. [ 1.806549][ T1] rcu: Max phase no-delay instances is 1000. [ 1.811908][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.813677][ T1] smp: Bringing up secondary CPUs ... [ 1.815765][ T1] x86: Booting SMP configuration: [ 1.816955][ T1] .... node #0, CPUs: #1 [ 1.819569][ 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. [ 1.821583][ 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. [ 1.824622][ 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. [ 1.827723][ T1] smp: Brought up 1 node, 2 CPUs [ 1.828847][ T1] smpboot: Max logical packages: 1 [ 1.829906][ T1] smpboot: Total of 2 processors activated (8800.64 BogoMIPS) [ 1.872728][ T1] allocated 134217728 bytes of page_ext [ 1.874932][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.879382][ T1] Node 0, zone DMA32: page owner found early allocated 15 pages [ 1.905035][ T1] Node 0, zone Normal: page owner found early allocated 33979 pages [ 1.907849][ T1] devtmpfs: initialized [ 1.911649][ T11] Callback from call_rcu_tasks() invoked. [ 1.926233][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.931577][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.935207][ T1] PM: RTC time: 06:35:22, date: 2022-09-03 [ 1.937467][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 1.944520][ T1] audit: initializing netlink subsys (disabled) [ 1.946194][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 1.946194][ T1] thermal_sys: Registered thermal governor 'user_space' [ 1.946194][ T1] cpuidle: using governor menu [ 1.946194][ T24] audit: type=2000 audit(1662186922.634:1): state=initialized audit_enabled=0 res=1 [ 1.950191][ T1] PCI: Using configuration type 1 for base access [ 2.093279][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.094568][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.123140][ T1] ACPI: Added _OSI(Module Device) [ 2.124337][ T1] ACPI: Added _OSI(Processor Device) [ 2.125461][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.127300][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.128485][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.130080][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.131391][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.230418][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.698018][ T1] ACPI: Interpreter enabled [ 3.701784][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.703348][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.705084][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.707671][ T1] PCI: Using E820 reservations for host bridge windows [ 3.710888][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.781694][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.783659][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.785595][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.787726][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.798451][ T1] PCI host bridge to bus 0000:00 [ 3.800321][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.801567][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.802848][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.804799][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.806400][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.807934][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 3.814722][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 3.843281][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 3.864934][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.869143][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 3.879875][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 3.887319][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 3.907048][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 3.919688][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 3.925694][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 3.946959][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 3.965330][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 3.986507][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 3.992548][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 4.003006][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 4.011552][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 4.033353][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 4.043314][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 4.050444][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 4.089451][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.095502][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.100074][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.105086][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.108824][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.121592][ T1] iommu: Default domain type: Translated [ 4.123333][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 4.125262][ T1] SCSI subsystem initialized [ 4.132425][ T1] ACPI: bus type USB registered [ 4.133833][ T1] usbcore: registered new interface driver usbfs [ 4.135632][ T1] usbcore: registered new interface driver hub [ 4.136703][ T1] usbcore: registered new device driver usb [ 4.139047][ T1] mc: Linux media interface: v0.10 [ 4.139047][ T1] videodev: Linux video capture interface: v2.00 [ 4.139047][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.139047][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.139047][ T1] PTP clock support registered [ 4.141693][ T1] EDAC MC: Ver: 3.0.0 [ 4.142653][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.151545][ T1] Bluetooth: Core ver 2.22 [ 4.151545][ T1] NET: Registered PF_BLUETOOTH protocol family [ 4.151545][ T1] Bluetooth: HCI device and connection manager initialized [ 4.151545][ T1] Bluetooth: HCI socket layer initialized [ 4.151585][ T1] Bluetooth: L2CAP socket layer initialized [ 4.153153][ T1] NET: Registered PF_ATMPVC protocol family [ 4.154265][ T1] NET: Registered PF_ATMSVC protocol family [ 4.155508][ T1] NetLabel: Initializing [ 4.156646][ T1] NetLabel: domain hash size = 128 [ 4.157502][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.158988][ T1] NetLabel: unlabeled traffic allowed by default [ 4.162602][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.164041][ T1] NET: Registered PF_NFC protocol family [ 4.165061][ T1] PCI: Using ACPI for IRQ routing [ 4.166951][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.168597][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.170779][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.171549][ T1] vgaarb: loaded [ 4.181552][ T1] clocksource: Switched to clocksource kvm-clock [ 4.186171][ T1] VFS: Disk quotas dquot_6.6.0 [ 4.187482][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.191367][ T1] TOMOYO: 2.6.0 [ 4.192304][ T1] Mandatory Access Control activated. [ 4.197142][ T1] AppArmor: AppArmor Filesystem Enabled [ 4.199333][ T1] pnp: PnP ACPI init [ 4.220122][ T1] pnp: PnP ACPI: found 7 devices [ 4.260396][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.263239][ T1] NET: Registered PF_INET protocol family [ 4.265795][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 4.279718][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 4.282830][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 4.285561][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 4.293747][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 4.301692][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.305628][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.310200][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.313822][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.323202][ T1] RPC: Registered named UNIX socket transport module. [ 4.324732][ T1] RPC: Registered udp transport module. [ 4.325929][ T1] RPC: Registered tcp transport module. [ 4.327886][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.332586][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.334632][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 4.336409][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 4.338651][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 4.342255][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.344194][ T1] PCI: CLS 0 bytes, default 64 [ 4.345656][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.347447][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) [ 4.361776][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.365052][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6cbb9648, max_idle_ns: 440795209148 ns [ 4.368719][ T1] clocksource: Switched to clocksource tsc [ 4.373820][ T42] kworker/u4:2 (42) used greatest stack depth: 27856 bytes left [ 4.567277][ T1] Initialise system trusted keyrings [ 4.571039][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 4.620736][ T1] NFS: Registering the id_resolver key type [ 4.622447][ T1] Key type id_resolver registered [ 4.623270][ T1] Key type id_legacy registered [ 4.624895][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.637098][ T1] Key type asymmetric registered [ 4.638229][ T1] Asymmetric key parser 'x509' registered [ 4.639470][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 4.641240][ T1] io scheduler mq-deadline registered [ 4.642408][ T1] io scheduler kyber registered [ 4.658974][ T1] usbcore: registered new interface driver udlfb [ 4.659956][ T83] kworker/u4:1 (83) used greatest stack depth: 27584 bytes left [ 4.660866][ T1] usbcore: registered new interface driver smscufx [ 4.665815][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.669629][ T1] ACPI: button: Power Button [PWRF] [ 4.672443][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.674502][ T1] ACPI: button: Sleep Button [SLPF] [ 4.695104][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.696250][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.714299][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.716211][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.738823][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.740046][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 4.753488][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 4.762496][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.770132][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.775069][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.778347][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.781688][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.793463][ T1] Non-volatile memory driver v1.3 [ 4.809604][ T1] Linux agpgart interface v0.103 [ 4.815484][ T1] ACPI: bus type drm_connector registered [ 4.822656][ T1] usbcore: registered new interface driver udl [ 4.852219][ T1] loop: module loaded [ 4.853889][ T1] usbcore: registered new interface driver rtsx_usb [ 4.855922][ T1] usbcore: registered new interface driver viperboard [ 4.858112][ T1] usbcore: registered new interface driver dln2 [ 4.859574][ T1] usbcore: registered new interface driver pn533_usb [ 4.862712][ T1] usbcore: registered new interface driver port100 [ 4.865023][ T1] usbcore: registered new interface driver nfcmrvl [ 4.887186][ T1] scsi host0: Virtio SCSI HBA [ 4.930027][ T1] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.064469][ T27] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.066363][ T27] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.067632][ T27] sd 0:0:1:0: [sda] Write Protect is off [ 5.068900][ T27] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.079785][ T27] sda: sda1 [ 5.081802][ T27] sd 0:0:1:0: [sda] Attached SCSI disk [ 5.084630][ T1] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.094263][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 5.096802][ T1] db_root: cannot open: /etc/target [ 5.127310][ T240] kworker/u4:1 (240) used greatest stack depth: 27336 bytes left [ 5.164116][ T246] BUG: unable to handle page fault for address: ffffdc0000000001 [ 5.164538][ T33] list_add corruption. prev->next should be next (ffff8881002aa200), but was ffff000000000000. (prev=ffff88810e6b8590). [ 5.166008][ T246] #PF: supervisor read access in kernel mode [ 5.168026][ T33] ------------[ cut here ]------------ [ 5.168892][ T246] #PF: error_code(0x0000) - not-present page [ 5.169700][ T33] kernel BUG at lib/list_debug.c:30! [ 5.170650][ T246] PGD 100026067 P4D 100026067 PUD 0 [ 5.173051][ T246] Oops: 0000 [#1] PREEMPT SMP KASAN [ 5.173822][ T246] CPU: 1 PID: 246 Comm: kworker/u4:1 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.173822][ T246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 5.173822][ T246] RIP: 0010:rb_insert_color+0x6d/0x7a0 [ 5.173822][ T246] Code: 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 48 05 00 00 48 8b 2b 40 f6 c5 01 0f 85 81 01 00 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 01 05 00 00 4c 8b 75 08 49 39 de 0f 84 6d 01 [ 5.173822][ T246] RSP: 0000:ffffc9000162f5b8 EFLAGS: 00010802 [ 5.173822][ T246] RAX: 1fffe00000000001 RBX: ffff88810e6b8090 RCX: 1ffff11021cb8014 [ 5.173822][ T246] RDX: 1ffff11021cb8012 RSI: ffff8881f6937bf0 RDI: ffff000000000008 [ 5.173822][ T246] RBP: ffff000000000000 R08: ffff88810e5c0090 R09: ffff8881f6937bc0 [ 5.173822][ T246] R10: ffffffff89ca5057 R11: 0000000000000001 R12: ffff88810e5c0090 [ 5.173822][ T246] R13: dffffc0000000000 R14: dffffc0000000000 R15: 00000000ba386b06 [ 5.173822][ T246] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.173822][ T246] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.173822][ T246] CR2: ffffdc0000000001 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.173822][ T246] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.173822][ T246] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.173822][ T246] Call Trace: [ 5.173822][ T246] [ 5.173822][ T246] ? update_curr+0x263/0x750 [ 5.173822][ T246] put_prev_entity+0x1d4/0x4c0 [ 5.173822][ T246] ? update_curr+0x263/0x750 [ 5.173822][ T246] pick_next_task_fair+0xa42/0xf80 [ 5.173822][ T246] __schedule+0x3a3/0x26f0 [ 5.173822][ T246] ? io_schedule_timeout+0x140/0x140 [ 5.173822][ T246] ? __cond_resched+0x13/0x20 [ 5.173822][ T246] preempt_schedule_common+0x45/0xc0 [ 5.173822][ T246] ? dput+0x35/0xdb0 [ 5.173822][ T246] __cond_resched+0x13/0x20 [ 5.173822][ T246] dput+0x50/0xdb0 [ 5.173822][ T246] step_into+0x10bb/0x20d0 [ 5.173822][ T246] ? lookup_fast+0x520/0x520 [ 5.173822][ T246] ? up_write+0x470/0x470 [ 5.173822][ T246] walk_component+0xf5/0x5a0 [ 5.173822][ T246] link_path_walk.part.0+0x7e6/0xf60 [ 5.173822][ T246] ? walk_component+0x5a0/0x5a0 [ 5.173822][ T246] ? percpu_counter_add_batch+0xbd/0x180 [ 5.173822][ T246] path_openat+0x262/0x28f0 [ 5.173822][ T246] ? lock_chain_count+0x20/0x20 [ 5.173822][ T246] ? register_lock_class+0xbe/0x1120 [ 5.173822][ T246] ? path_lookupat+0x840/0x840 [ 5.173822][ T246] ? kasan_save_stack+0x2e/0x40 [ 5.173822][ T246] ? kasan_save_stack+0x1e/0x40 [ 5.173822][ T246] do_filp_open+0x1b6/0x400 [ 5.173822][ T246] ? may_open_dev+0xf0/0xf0 [ 5.173822][ T246] ? __lock_acquire+0xbc3/0x56d0 [ 5.173822][ T246] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 5.173822][ T246] ? __kmalloc+0x66/0x320 [ 5.173822][ T246] ? find_held_lock+0x2d/0x110 [ 5.173822][ T246] do_open_execat+0x116/0x730 [ 5.173822][ T246] ? bprm_execve+0x44b/0x1960 [ 5.173822][ T246] ? __do_sys_uselib+0x670/0x670 [ 5.173822][ T246] ? do_raw_spin_lock+0x120/0x2a0 [ 5.173822][ T246] ? rwlock_bug.part.0+0x90/0x90 [ 5.173822][ T246] bprm_execve+0x48c/0x1960 [ 5.173822][ T246] ? open_exec+0x70/0x70 [ 5.173822][ T246] ? copy_strings_kernel+0x151/0x190 [ 5.173822][ T246] kernel_execve+0x3ea/0x500 [ 5.173822][ T246] call_usermodehelper_exec_async+0x2e3/0x580 [ 5.173822][ T246] ? umh_complete+0x90/0x90 [ 5.173822][ T246] ret_from_fork+0x1f/0x30 [ 5.173822][ T246] [ 5.173822][ T246] Modules linked in: [ 5.173822][ T246] CR2: ffffdc0000000001 [ 5.173822][ T246] ---[ end trace 0000000000000000 ]--- [ 5.173819][ T33] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 5.173822][ T246] RIP: 0010:rb_insert_color+0x6d/0x7a0 [ 5.173819][ T33] CPU: 0 PID: 33 Comm: kworker/u4:2 Tainted: G D 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.173822][ T246] Code: 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 48 05 00 00 48 8b 2b 40 f6 c5 01 0f 85 81 01 00 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 01 05 00 00 4c 8b 75 08 49 39 de 0f 84 6d 01 [ 5.173819][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 5.173822][ T246] RSP: 0000:ffffc9000162f5b8 EFLAGS: 00010802 [ 5.173819][ T33] Workqueue: events_unbound call_usermodehelper_exec_work [ 5.173822][ T246] RAX: 1fffe00000000001 RBX: ffff88810e6b8090 RCX: 1ffff11021cb8014 [ 5.173819][ T33] RIP: 0010:__list_add_valid.cold+0x56/0x58 [ 5.173822][ T246] RDX: 1ffff11021cb8012 RSI: ffff8881f6937bf0 RDI: ffff000000000008 [ 5.173819][ T33] Code: 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 b3 62 86 e8 39 1f fc ff 0f 0b 48 89 f1 48 c7 c7 e0 b2 62 86 4c 89 e6 e8 25 1f fc ff <0f> 0b 4c 89 e1 48 89 ee 48 c7 c7 40 b5 62 86 e8 11 1f fc ff 0f 0b [ 5.173822][ T246] RBP: ffff000000000000 R08: ffff88810e5c0090 R09: ffff8881f6937bc0 [ 5.173819][ T33] RSP: 0000:ffffc90000447918 EFLAGS: 00010082 [ 5.173822][ T246] R10: ffffffff89ca5057 R11: 0000000000000001 R12: ffff88810e5c0090 [ 5.173819][ T33] RAX: 0000000000000075 RBX: ffff88810e6b8590 RCX: 0000000000000000 [ 5.173822][ T246] R13: dffffc0000000000 R14: dffffc0000000000 R15: 00000000ba386b06 [ 5.173819][ T33] RDX: ffff888109665580 RSI: ffffffff812c97e8 RDI: fffff52000088f15 [ 5.173822][ T246] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.173819][ T33] RBP: ffff88810e6ba210 R08: 0000000000000075 R09: 0000000000000000 [ 5.173822][ T246] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.173819][ T33] R10: 0000000080000002 R11: 6464615f7473696c R12: ffff8881002aa200 [ 5.173822][ T246] CR2: ffffdc0000000001 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.173819][ T33] R13: ffff88810e6b9c80 R14: ffffc90000447c10 R15: 0000000000808100 [ 5.173822][ T246] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.173819][ T33] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 5.173822][ T246] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.173819][ T33] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.173822][ T246] Kernel panic - not syncing: Fatal exception [ 5.173819][ T33] CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0 [ 5.173819][ T33] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.173819][ T33] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.173819][ T33] Call Trace: [ 5.173819][ T33] [ 5.173819][ T33] copy_process+0x54fb/0x6de0 [ 5.173819][ T33] ? __cleanup_sighand+0xb0/0xb0 [ 5.173819][ T33] ? wake_up_new_task+0x741/0xc80 [ 5.173819][ T33] ? to_ratio+0x20/0x20 [ 5.173819][ T33] kernel_clone+0xe7/0xab0 [ 5.173819][ T33] ? create_io_thread+0xe0/0xe0 [ 5.173819][ T33] ? rcu_read_lock_sched_held+0xd/0x70 [ 5.173819][ T33] ? lock_acquire+0x480/0x570 [ 5.173819][ T33] ? rcu_read_lock_sched_held+0xd/0x70 [ 5.173819][ T33] ? lock_release+0x560/0x780 [ 5.173819][ T33] ? debug_object_deactivate+0x264/0x300 [ 5.173819][ T33] ? lock_downgrade+0x6e0/0x6e0 [ 5.173819][ T33] ? rwlock_bug.part.0+0x90/0x90 [ 5.173819][ T33] ? rcu_read_lock_sched_held+0xd/0x70 [ 5.173819][ T33] ? umh_complete+0x90/0x90 [ 5.173819][ T33] user_mode_thread+0xad/0xe0 [ 5.173819][ T33] ? kernel_thread+0xf0/0xf0 [ 5.173819][ T33] ? umh_complete+0x90/0x90 [ 5.173819][ T33] ? read_word_at_a_time+0xe/0x20 [ 5.173819][ T33] ? strscpy+0xa1/0x2a0 [ 5.173819][ T33] call_usermodehelper_exec_work+0xcc/0x180 [ 5.173819][ T33] process_one_work+0x991/0x1610 [ 5.173819][ T33] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 5.173819][ T33] ? rwlock_bug.part.0+0x90/0x90 [ 5.173819][ T33] worker_thread+0x665/0x1080 [ 5.173819][ T33] ? process_one_work+0x1610/0x1610 [ 5.173819][ T33] kthread+0x2ea/0x3a0 [ 5.173819][ T33] ? kthread_complete_and_exit+0x40/0x40 [ 5.173819][ T33] ret_from_fork+0x1f/0x30 [ 5.173819][ T33] [ 5.173819][ T33] Modules linked in: [ 5.173819][ T33] ---[ end trace 0000000000000000 ]--- [ 5.173819][ T33] RIP: 0010:rb_insert_color+0x6d/0x7a0 [ 5.173819][ T33] Code: 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 48 05 00 00 48 8b 2b 40 f6 c5 01 0f 85 81 01 00 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 01 05 00 00 4c 8b 75 08 49 39 de 0f 84 6d 01 [ 5.173819][ T33] RSP: 0000:ffffc9000162f5b8 EFLAGS: 00010802 [ 5.173819][ T33] RAX: 1fffe00000000001 RBX: ffff88810e6b8090 RCX: 1ffff11021cb8014 [ 5.173819][ T33] RDX: 1ffff11021cb8012 RSI: ffff8881f6937bf0 RDI: ffff000000000008 [ 5.173819][ T33] RBP: ffff000000000000 R08: ffff88810e5c0090 R09: ffff8881f6937bc0 [ 5.173819][ T33] R10: ffffffff89ca5057 R11: 0000000000000001 R12: ffff88810e5c0090 [ 5.173819][ T33] R13: dffffc0000000000 R14: dffffc0000000000 R15: 00000000ba386b06 [ 5.173819][ T33] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 5.173819][ T33] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.173819][ T33] CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0 [ 5.173819][ T33] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.173819][ T33] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.173822][ T246] Shutting down cpus with NMI [ 5.173822][ T246] Kernel Offset: disabled [ 5.173822][ T246] 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-build1578724242=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at d96e88f32 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=d96e88f3207d7ac7ad65e13b896f702ad04c46f7 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Fri Sep 20 09:37:36 2019 +0200'" "-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=d96e88f3207d7ac7ad65e13b896f702ad04c46f7 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Fri Sep 20 09:37:36 2019 +0200'" "-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=d96e88f3207d7ac7ad65e13b896f702ad04c46f7 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Fri Sep 20 09:37:36 2019 +0200'" "-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=\"d96e88f3207d7ac7ad65e13b896f702ad04c46f7\" make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'