BUG: unable to handle kernel paging request in mm_alloc BUG: unable to handle page fault for address: 00000fff00000328 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 255 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 08/26/2022 RIP: 0010:freelist_dereference mm/slub.c:347 [inline] RIP: 0010:get_freepointer mm/slub.c:354 [inline] RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline] RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline] RIP: 0010:slab_alloc mm/slub.c:3251 [inline] RIP: 0010:__kmem_cache_alloc_lru mm/slub.c:3258 [inline] RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 mm/slub.c:3268 Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 RSP: 0000:ffffc900015afe18 EFLAGS: 00010246 RAX: 00000fff00000000 RBX: ffff88810e7fb300 RCX: 0000000000000328 RDX: 0000000000000389 RSI: 0000000000000cc0 RDI: 000000000003e3f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016d8c0 R13: 0000000000000cc0 R14: ffffffff811440e9 R15: 0000000000000cc0 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000fff00000328 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mm_alloc+0x19/0xc0 kernel/fork.c:1171 bprm_mm_init fs/exec.c:369 [inline] alloc_bprm+0x1c3/0x900 fs/exec.c:1534 kernel_execve+0xab/0x500 fs/exec.c:1974 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: 00000fff00000328 ---[ end trace 0000000000000000 ]--- RIP: 0010:freelist_dereference mm/slub.c:347 [inline] RIP: 0010:get_freepointer mm/slub.c:354 [inline] RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline] RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline] RIP: 0010:slab_alloc mm/slub.c:3251 [inline] RIP: 0010:__kmem_cache_alloc_lru mm/slub.c:3258 [inline] RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 mm/slub.c:3268 Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 RSP: 0000:ffffc900015afe18 EFLAGS: 00010246 RAX: 00000fff00000000 RBX: ffff88810e7fb300 RCX: 0000000000000328 RDX: 0000000000000389 RSI: 0000000000000cc0 RDI: 000000000003e3f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016d8c0 R13: 0000000000000cc0 R14: ffffffff811440e9 R15: 0000000000000cc0 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000fff00000328 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 51 push %rcx 1: 08 48 8b or %cl,-0x75(%rax) 4: 01 48 83 add %ecx,-0x7d(%rax) 7: 79 10 jns 0x19 9: 00 48 89 add %cl,-0x77(%rax) c: 04 24 add $0x24,%al e: 0f 84 7c 02 00 00 je 0x290 14: 48 85 c0 test %rax,%rax 17: 0f 84 73 02 00 00 je 0x290 1d: 49 8b 3c 24 mov (%r12),%rdi 21: 41 8b 4c 24 28 mov 0x28(%r12),%ecx 26: 40 f6 c7 0f test $0xf,%dil * 2a: 48 8b 1c 08 mov (%rax,%rcx,1),%rbx <-- trapping instruction 2e: 0f 85 7b 02 00 00 jne 0x2af 34: 48 8d 4a 08 lea 0x8(%rdx),%rcx 38: 65 48 0f c7 0f cmpxchg16b %gs:(%rdi) 3d: 0f 94 c0 sete %al 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@10.128.10.12" "pwd"]: exit status 255 ssh: connect to host 10.128.10.12 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: d7fa64a0784399d82b079f5211f7e9fcd69c116bb4f69a63dd0bc38bd8ee5b7b, 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 2993553414 cycles [ 0.001893][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.007030][ T0] tsc: Detected 2200.216 MHz processor [ 0.012839][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.015470][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.017313][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.024158][ T0] found SMP MP-table at [mem 0x000f2750-0x000f275f] [ 0.025955][ T0] Using GB pages for direct mapping [ 0.028680][ T0] ACPI: Early table checksum verification disabled [ 0.030880][ T0] ACPI: RSDP 0x00000000000F24D0 000014 (v00 Google) [ 0.032616][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.035668][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.038339][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.040505][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.041675][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.042734][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.044809][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.047153][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.050171][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.052935][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.055511][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.057444][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.059747][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.062024][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.064493][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.066623][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.068628][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.071440][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.073257][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.074787][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.076826][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.078456][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.079850][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.082154][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.084939][ T0] NODE_DATA(0) allocated [mem 0x23fffa000-0x23fffdfff] [ 0.125934][ T0] Zone ranges: [ 0.127135][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.128609][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.130742][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.132703][ T0] Movable zone start for each node [ 0.133935][ T0] Early memory node ranges [ 0.134839][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.136910][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.138426][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff] [ 0.140076][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff] [ 0.141875][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.142015][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.204827][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.528329][ T0] kasan: KernelAddressSanitizer initialized [ 0.532396][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.533535][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.535579][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.537801][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.539336][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.541753][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.543416][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.544769][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.546534][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.548035][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.550490][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.552747][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.554264][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.556423][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.558643][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.560766][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.562952][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.564714][ T0] Booting paravirtualized kernel on KVM [ 0.565801][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.606598][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.609411][ T0] percpu: Embedded 67 pages/cpu s233568 r8192 d32672 u1048576 [ 0.611968][ T0] kvm-guest: PV spinlocks enabled [ 0.612843][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.615619][ T0] Fallback order for Node 0: 0 [ 0.617261][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2064125 [ 0.619307][ T0] Policy zone: Normal [ 0.620446][ 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 [ 0.645060][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.651715][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.656164][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.659159][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.663310][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.665776][ T0] software IO TLB: area num 2. [ 1.599274][ T0] Memory: 6921704K/8388204K available (83983K kernel code, 22480K rwdata, 19020K rodata, 2220K init, 32260K bss, 1466244K reserved, 0K cma-reserved) [ 1.603575][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 1.612208][ T0] Dynamic Preempt: voluntary [ 1.613991][ T0] Running RCU self tests [ 1.615397][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.617063][ T0] rcu: RCU lockdep checking is enabled. [ 1.618500][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.620616][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.623137][ T0] rcu: RCU debug extended QS entry/exit. [ 1.624509][ T0] All grace periods are expedited (rcu_expedited). [ 1.626802][ T0] Trampoline variant of Tasks RCU enabled. [ 1.628105][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.630952][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.653312][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.655498][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.657866][ T0] random: crng init done [ 1.659701][ T0] Console: colour VGA+ 80x25 [ 1.660651][ T0] printk: console [ttyS0] enabled [ 1.660651][ T0] printk: console [ttyS0] enabled [ 1.663739][ T0] printk: bootconsole [earlyser0] disabled [ 1.663739][ T0] printk: bootconsole [earlyser0] disabled [ 1.667266][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.669707][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.670948][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.672226][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.673682][ T0] ... CLASSHASH_SIZE: 4096 [ 1.674981][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.676413][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.677415][ T0] ... CHAINHASH_SIZE: 131072 [ 1.678772][ T0] memory used by lock dependency info: 20657 kB [ 1.680424][ T0] memory used for stack traces: 8320 kB [ 1.682133][ T0] per task-struct memory footprint: 1920 bytes [ 1.684398][ T0] ACPI: Core revision 20220331 [ 1.686747][ T0] APIC: Switch to symmetric I/O mode setup [ 1.694458][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.696968][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6feccdd0, max_idle_ns: 440795259471 ns [ 1.699163][ T0] Calibrating delay loop (skipped) preset value.. 4400.43 BogoMIPS (lpj=22002160) [ 1.701288][ T0] pid_max: default: 32768 minimum: 301 [ 1.702702][ T0] LSM: Security Framework initializing [ 1.704052][ T0] landlock: Up and running. [ 1.704986][ T0] Yama: becoming mindful. [ 1.709234][ T0] TOMOYO Linux initialized [ 1.710467][ T0] AppArmor: AppArmor initialized [ 1.712588][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.714868][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.720263][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.721628][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.723490][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.725562][ T0] Spectre V2 : Mitigation: IBRS [ 1.727075][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.728800][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.729146][ T0] RETBleed: Mitigation: IBRS [ 1.730190][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.732269][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.734454][ T0] MDS: Mitigation: Clear CPU buffers [ 1.735887][ T0] TAA: Mitigation: Clear CPU buffers [ 1.737138][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.740912][ T0] Freeing SMP alternatives memory: 60K [ 1.864445][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.868430][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.869132][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.869132][ T1] Running RCU-tasks wait API self tests [ 1.979272][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.982690][ T1] rcu: Hierarchical SRCU implementation. [ 1.984848][ T1] rcu: Max phase no-delay instances is 1000. [ 1.989481][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.993037][ T1] smp: Bringing up secondary CPUs ... [ 1.996018][ T1] x86: Booting SMP configuration: [ 1.997085][ T1] .... node #0, CPUs: #1 [ 1.999795][ 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. [ 2.002805][ 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. [ 2.007724][ 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. [ 2.009432][ T1] smp: Brought up 1 node, 2 CPUs [ 2.010674][ T1] smpboot: Max logical packages: 1 [ 2.012112][ T1] smpboot: Total of 2 processors activated (8800.86 BogoMIPS) [ 2.061235][ T1] allocated 134217728 bytes of page_ext [ 2.063642][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 2.069917][ T1] Node 0, zone DMA32: page owner found early allocated 15 pages [ 2.089296][ T11] Callback from call_rcu_tasks() invoked. [ 2.096988][ T1] Node 0, zone Normal: page owner found early allocated 33979 pages [ 2.100672][ T1] devtmpfs: initialized [ 2.121492][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.121899][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 2.125940][ T1] PM: RTC time: 23:35:05, date: 2022-09-03 [ 2.130554][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.137828][ T1] audit: initializing netlink subsys (disabled) [ 2.141028][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.141042][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.143354][ T25] audit: type=2000 audit(1662248105.251:1): state=initialized audit_enabled=0 res=1 [ 2.146868][ T1] cpuidle: using governor menu [ 2.154385][ T1] PCI: Using configuration type 1 for base access [ 2.300551][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.302519][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.314928][ T1] ACPI: Added _OSI(Module Device) [ 2.316340][ T1] ACPI: Added _OSI(Processor Device) [ 2.318647][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.319172][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.321500][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.322899][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.324260][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.425573][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.915766][ T1] ACPI: Interpreter enabled [ 3.919328][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.920599][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.922115][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.924944][ T1] PCI: Using E820 reservations for host bridge windows [ 3.928519][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.999285][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 4.001203][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 4.003380][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 4.006856][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 4.016011][ T1] PCI host bridge to bus 0000:00 [ 4.017756][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 4.019167][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 4.020983][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 4.023481][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 4.026048][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 4.027995][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 4.034681][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 4.071610][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 4.099307][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.103599][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 4.116121][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 4.125121][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 4.151199][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 4.152615][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 4.171107][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 4.199258][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 4.213214][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 4.245285][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 4.251126][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 4.264268][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 4.273215][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 4.292601][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 4.303719][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 4.309165][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 4.345326][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.351032][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.357204][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.362994][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.366790][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.375001][ T1] iommu: Default domain type: Translated [ 4.375001][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 4.375001][ T1] SCSI subsystem initialized [ 4.380032][ T1] ACPI: bus type USB registered [ 4.381363][ T1] usbcore: registered new interface driver usbfs [ 4.383073][ T1] usbcore: registered new interface driver hub [ 4.384476][ T1] usbcore: registered new device driver usb [ 4.386643][ T1] mc: Linux media interface: v0.10 [ 4.389157][ T1] videodev: Linux video capture interface: v2.00 [ 4.389589][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.390623][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.392254][ T1] PTP clock support registered [ 4.393813][ T1] EDAC MC: Ver: 3.0.0 [ 4.393813][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.401869][ T1] Bluetooth: Core ver 2.22 [ 4.402775][ T1] NET: Registered PF_BLUETOOTH protocol family [ 4.404130][ T1] Bluetooth: HCI device and connection manager initialized [ 4.405614][ T1] Bluetooth: HCI socket layer initialized [ 4.406614][ T1] Bluetooth: L2CAP socket layer initialized [ 4.407754][ T1] NET: Registered PF_ATMPVC protocol family [ 4.408969][ T1] NET: Registered PF_ATMSVC protocol family [ 4.409405][ T1] NetLabel: Initializing [ 4.410499][ T1] NetLabel: domain hash size = 128 [ 4.412753][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.414782][ T1] NetLabel: unlabeled traffic allowed by default [ 4.417135][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.419316][ T1] NET: Registered PF_NFC protocol family [ 4.420436][ T1] PCI: Using ACPI for IRQ routing [ 4.421862][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.423081][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.424268][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.426093][ T1] vgaarb: loaded [ 4.431179][ T1] clocksource: Switched to clocksource kvm-clock [ 4.435566][ T1] VFS: Disk quotas dquot_6.6.0 [ 4.436898][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.439112][ T1] TOMOYO: 2.6.0 [ 4.439112][ T1] Mandatory Access Control activated. [ 4.443325][ T1] AppArmor: AppArmor Filesystem Enabled [ 4.444826][ T1] pnp: PnP ACPI init [ 4.465266][ T1] pnp: PnP ACPI: found 7 devices [ 4.506709][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.509485][ T1] NET: Registered PF_INET protocol family [ 4.511978][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 4.525001][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 4.527415][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 4.529802][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 4.537234][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 4.544711][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.549458][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.553766][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.557201][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.560918][ T1] RPC: Registered named UNIX socket transport module. [ 4.562211][ T1] RPC: Registered udp transport module. [ 4.563294][ T1] RPC: Registered tcp transport module. [ 4.564497][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.568912][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.570952][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 4.572424][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 4.573767][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 4.576274][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.577798][ T1] PCI: CLS 0 bytes, default 64 [ 4.585106][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.586911][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) [ 4.595362][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.597001][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6feccdd0, max_idle_ns: 440795259471 ns [ 4.599467][ T1] clocksource: Switched to clocksource tsc [ 4.607141][ T43] kworker/u4:2 (43) used greatest stack depth: 27960 bytes left [ 4.608475][ T42] kworker/u4:2 (42) used greatest stack depth: 27856 bytes left [ 4.620226][ T47] kworker/u4:2 (47) used greatest stack depth: 27104 bytes left [ 4.816267][ T1] Initialise system trusted keyrings [ 4.818465][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 4.866836][ T1] NFS: Registering the id_resolver key type [ 4.868169][ T1] Key type id_resolver registered [ 4.869452][ T1] Key type id_legacy registered [ 4.871493][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.882796][ T1] Key type asymmetric registered [ 4.884158][ T1] Asymmetric key parser 'x509' registered [ 4.886133][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 4.887705][ T1] io scheduler mq-deadline registered [ 4.888925][ T1] io scheduler kyber registered [ 4.905579][ T1] usbcore: registered new interface driver udlfb [ 4.908302][ T1] usbcore: registered new interface driver smscufx [ 4.911947][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.916929][ T1] ACPI: button: Power Button [PWRF] [ 4.919319][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.921318][ T1] ACPI: button: Sleep Button [SLPF] [ 4.943684][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.944867][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.964760][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.966260][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.986299][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.987444][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 5.002116][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 5.010816][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.014132][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.018219][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.022573][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.025993][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 5.035205][ T1] Non-volatile memory driver v1.3 [ 5.055321][ T1] Linux agpgart interface v0.103 [ 5.061924][ T1] ACPI: bus type drm_connector registered [ 5.067972][ T1] usbcore: registered new interface driver udl [ 5.105039][ T1] loop: module loaded [ 5.107701][ T1] usbcore: registered new interface driver rtsx_usb [ 5.111063][ T1] usbcore: registered new interface driver viperboard [ 5.114125][ T1] usbcore: registered new interface driver dln2 [ 5.116817][ T1] usbcore: registered new interface driver pn533_usb [ 5.118770][ T1] usbcore: registered new interface driver port100 [ 5.121512][ T1] usbcore: registered new interface driver nfcmrvl [ 5.144484][ T1] scsi host0: Virtio SCSI HBA [ 5.187733][ T1] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.323722][ T8] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.326517][ T8] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.328681][ T8] sd 0:0:1:0: [sda] Write Protect is off [ 5.330545][ T8] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.341584][ T8] sda: sda1 [ 5.344173][ T8] sd 0:0:1:0: [sda] Attached SCSI disk [ 5.347676][ T1] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.356121][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 5.358735][ T1] db_root: cannot open: /etc/target [ 5.433290][ T1] CAN device driver interface [ 5.433769][ T255] BUG: unable to handle page fault for address: 00000fff00000328 [ 5.434818][ T1] usbcore: registered new interface driver usb_8dev [ 5.437075][ T255] #PF: supervisor read access in kernel mode [ 5.439823][ T1] usbcore: registered new interface driver ems_usb [ 5.440813][ T255] #PF: error_code(0x0000) - not-present page [ 5.442740][ T1] usbcore: registered new interface driver gs_usb [ 5.442365][ T255] PGD 0 P4D 0 [ 5.446558][ T1] usbcore: registered new interface driver kvaser_usb [ 5.442365][ T255] Oops: 0000 [#1] PREEMPT SMP KASAN [ 5.449290][ T1] usbcore: registered new interface driver mcba_usb [ 5.442365][ T255] CPU: 1 PID: 255 Comm: kworker/u4:1 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.451407][ T1] usbcore: registered new interface driver peak_usb [ 5.442365][ T255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 5.455159][ T1] e100: Intel(R) PRO/100 Network Driver [ 5.442365][ T255] RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 [ 5.458464][ T1] e100: Copyright(c) 1999-2006 Intel Corporation [ 5.442365][ T255] Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 5.442365][ T255] RSP: 0000:ffffc900015afe18 EFLAGS: 00010246 [ 5.442365][ T255] RAX: 00000fff00000000 RBX: ffff88810e7fb300 RCX: 0000000000000328 [ 5.462604][ T1] e1000: Intel(R) PRO/1000 Network Driver [ 5.442365][ T255] RDX: 0000000000000389 RSI: 0000000000000cc0 RDI: 000000000003e3f0 [ 5.467615][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 5.442365][ T255] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 5.442365][ T255] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016d8c0 [ 5.442365][ T255] R13: 0000000000000cc0 R14: ffffffff811440e9 R15: 0000000000000cc0 [ 5.472336][ T1] e1000e: Intel(R) PRO/1000 Network Driver [ 5.442365][ T255] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.475788][ T1] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 5.476046][ T1] sky2: driver version 1.30 [ 5.442365][ T255] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.480756][ T1] usbcore: registered new interface driver ath9k_htc [ 5.442365][ T255] CR2: 00000fff00000328 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.483164][ T1] usbcore: registered new interface driver carl9170 [ 5.442365][ T255] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.486837][ T1] usbcore: registered new interface driver ath6kl_usb [ 5.442365][ T255] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.492578][ T1] usbcore: registered new interface driver ar5523 [ 5.492553][ T255] Call Trace: [ 5.492553][ T255] [ 5.496118][ T1] usbcore: registered new interface driver ath10k_usb [ 5.492553][ T255] mm_alloc+0x19/0xc0 [ 5.498919][ T1] Atmel at76x USB Wireless LAN Driver 0.17 loading [ 5.492553][ T255] alloc_bprm+0x1c3/0x900 [ 5.492553][ T255] kernel_execve+0xab/0x500 [ 5.492553][ T255] call_usermodehelper_exec_async+0x2e3/0x580 [ 5.492553][ T255] ? umh_complete+0x90/0x90 [ 5.492553][ T255] ret_from_fork+0x1f/0x30 [ 5.492553][ T255] [ 5.492553][ T255] Modules linked in: [ 5.492553][ T255] CR2: 00000fff00000328 [ 5.492553][ T255] ---[ end trace 0000000000000000 ]--- [ 5.509152][ T257] BUG: unable to handle page fault for address: ffffdc0000000008 [ 5.492553][ T255] RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 [ 5.509152][ T257] #PF: supervisor read access in kernel mode [ 5.492553][ T255] Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 5.509152][ T257] #PF: error_code(0x0000) - not-present page [ 5.492553][ T255] RSP: 0000:ffffc900015afe18 EFLAGS: 00010246 [ 5.509152][ T257] PGD 100026067 P4D 100026067 PUD 0 [ 5.492553][ T255] RAX: 00000fff00000000 RBX: ffff88810e7fb300 RCX: 0000000000000328 [ 5.509152][ T257] Oops: 0000 [#2] PREEMPT SMP KASAN [ 5.492553][ T255] RDX: 0000000000000389 RSI: 0000000000000cc0 RDI: 000000000003e3f0 [ 5.509152][ T257] CPU: 0 PID: 257 Comm: kworker/u4:2 Tainted: G D 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.492553][ T255] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 5.509152][ T257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 5.492553][ T255] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016d8c0 [ 5.509152][ T257] RIP: 0010:unmap_vmas+0xa9/0x310 [ 5.492553][ T255] R13: 0000000000000cc0 R14: ffffffff811440e9 R15: 0000000000000cc0 [ 5.509152][ T257] Code: 31 c0 e8 ba 66 dc ff 48 8d 7b 40 48 b8 01 00 00 00 01 00 00 00 48 89 44 24 40 48 89 f8 48 c7 44 24 38 00 00 00 00 48 c1 e8 03 <42> 80 3c 20 00 0f 85 48 02 00 00 48 8b 43 40 be c6 01 00 00 48 89 [ 5.492553][ T255] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.509152][ T257] RSP: 0000:ffffc9000179fc50 EFLAGS: 00010a02 [ 5.492553][ T255] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.509152][ T257] RAX: 1fffe00000000008 RBX: ffff000000000000 RCX: 0000000000000000 [ 5.492553][ T255] CR2: 00000fff00000328 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.509152][ T257] RDX: ffff88810e7e9c80 RSI: ffffffff8169a236 RDI: ffff000000000040 [ 5.492553][ T255] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.509152][ T257] RBP: ffffffffffffffff R08: 0000000000000001 R09: ffff88810e7d75eb [ 5.492553][ T255] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.509152][ T257] R10: ffffed1021cfaebd R11: 0000000000052040 R12: dffffc0000000000 [ 5.492553][ T255] Kernel panic - not syncing: Fatal exception [ 5.509152][ T257] R13: 0000000000000000 R14: ffffc9000179fd80 R15: 1ffff920002f3f8b [ 5.509152][ T257] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 5.509152][ T257] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.509152][ T257] CR2: ffffdc0000000008 CR3: 0000000007825000 CR4: 00000000003506f0 [ 5.509152][ T257] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.509152][ T257] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.509152][ T257] Call Trace: [ 5.509152][ T257] [ 5.509152][ T257] ? unmap_mapping_range+0x280/0x280 [ 5.509152][ T257] ? lock_downgrade+0x6e0/0x6e0 [ 5.509152][ T257] ? down_write+0xde/0x150 [ 5.509152][ T257] ? lru_add_drain_cpu+0x474/0x850 [ 5.509152][ T257] exit_mmap+0x1b8/0x490 [ 5.509152][ T257] ? __ia32_sys_remap_file_pages+0x150/0x150 [ 5.509152][ T257] mmput+0xcc/0x410 [ 5.509152][ T257] free_bprm+0x65/0x2e0 [ 5.509152][ T257] kernel_execve+0x3fa/0x500 [ 5.509152][ T257] call_usermodehelper_exec_async+0x2e3/0x580 [ 5.509152][ T257] ? umh_complete+0x90/0x90 [ 5.509152][ T257] ret_from_fork+0x1f/0x30 [ 5.509152][ T257] [ 5.509152][ T257] Modules linked in: [ 5.509152][ T257] CR2: ffffdc0000000008 [ 5.509152][ T257] ---[ end trace 0000000000000000 ]--- [ 5.509152][ T257] RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 [ 5.509152][ T257] Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 5.509152][ T257] RSP: 0000:ffffc900015afe18 EFLAGS: 00010246 [ 5.509152][ T257] RAX: 00000fff00000000 RBX: ffff88810e7fb300 RCX: 0000000000000328 [ 5.509152][ T257] RDX: 0000000000000389 RSI: 0000000000000cc0 RDI: 000000000003e3f0 [ 5.509152][ T257] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 5.509152][ T257] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016d8c0 [ 5.509152][ T257] R13: 0000000000000cc0 R14: ffffffff811440e9 R15: 0000000000000cc0 [ 5.509152][ T257] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 5.509152][ T257] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.509152][ T257] CR2: ffffdc0000000008 CR3: 0000000007825000 CR4: 00000000003506f0 [ 5.509152][ T257] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.509152][ T257] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.492553][ T255] Shutting down cpus with NMI [ 5.492553][ T255] Kernel Offset: disabled [ 5.492553][ T255] 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-build4122299901=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 0d368675f 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=0d368675f84a2d7f3389d4204bdd6a20d1989006 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Wed Dec 11 11:05:32 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=0d368675f84a2d7f3389d4204bdd6a20d1989006 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Wed Dec 11 11:05:32 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=0d368675f84a2d7f3389d4204bdd6a20d1989006 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Wed Dec 11 11:05:32 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=\"0d368675f84a2d7f3389d4204bdd6a20d1989006\" make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'