BUG: unable to handle kernel paging request in kernel_execve BUG: unable to handle page fault for address: ffffdc0000000000 #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: 258 Comm: kworker/u4:2 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:strnlen+0x3b/0x70 lib/string.c:504 Code: 74 3c 48 bb 00 00 00 00 00 fc ff df 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <0f> b6 14 1a 38 ca 7f 04 84 d2 75 11 80 38 00 75 d9 4c 29 e0 48 83 RSP: 0000:ffffc9000189fe08 EFLAGS: 00010246 RAX: ffff000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 1fffe00000000000 RSI: 0000000000020000 RDI: ffff000000000000 RBP: ffff000000020000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000006 R11: 0000000000000000 R12: ffff000000000000 R13: ffff000000000000 R14: dffffc0000000000 R15: 1ffff11021ce8000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: strnlen include/linux/fortify-string.h:119 [inline] copy_string_kernel+0x27/0x460 fs/exec.c:616 copy_strings_kernel+0xb3/0x190 fs/exec.c:655 kernel_execve+0x377/0x500 fs/exec.c:2001 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: ffffdc0000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:strnlen+0x3b/0x70 lib/string.c:504 Code: 74 3c 48 bb 00 00 00 00 00 fc ff df 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <0f> b6 14 1a 38 ca 7f 04 84 d2 75 11 80 38 00 75 d9 4c 29 e0 48 83 RSP: 0000:ffffc9000189fe08 EFLAGS: 00010246 RAX: ffff000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 1fffe00000000000 RSI: 0000000000020000 RDI: ffff000000000000 RBP: ffff000000020000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000006 R11: 0000000000000000 R12: ffff000000000000 R13: ffff000000000000 R14: dffffc0000000000 R15: 1ffff11021ce8000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 74 3c je 0x3e 2: 48 bb 00 00 00 00 00 movabs $0xdffffc0000000000,%rbx 9: fc ff df c: 49 89 fc mov %rdi,%r12 f: 48 89 f8 mov %rdi,%rax 12: eb 09 jmp 0x1d 14: 48 83 c0 01 add $0x1,%rax 18: 48 39 e8 cmp %rbp,%rax 1b: 74 1e je 0x3b 1d: 48 89 c2 mov %rax,%rdx 20: 48 89 c1 mov %rax,%rcx 23: 48 c1 ea 03 shr $0x3,%rdx 27: 83 e1 07 and $0x7,%ecx * 2a: 0f b6 14 1a movzbl (%rdx,%rbx,1),%edx <-- trapping instruction 2e: 38 ca cmp %cl,%dl 30: 7f 04 jg 0x36 32: 84 d2 test %dl,%dl 34: 75 11 jne 0x47 36: 80 38 00 cmpb $0x0,(%rax) 39: 75 d9 jne 0x14 3b: 4c 29 e0 sub %r12,%rax 3e: 48 rex.W 3f: 83 .byte 0x83 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@10.128.0.65" "pwd"]: exit status 255 ssh: connect to host 10.128.0.65 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-0 port 1 (session ID: eb0f8e8f2de7cad51e7da02a2a5480683d5bfab3af90c0225b72e261870ba0df, 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 63d5cf19-b3b9-41af-dcca-34a1e7350b57 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 [ 0.000009][ T0] kvm-clock: using sched offset of 2468525541 cycles [ 0.001174][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.005238][ T0] tsc: Detected 2200.214 MHz processor [ 0.010542][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.011733][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.013966][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.021349][ T0] found SMP MP-table at [mem 0x000f2750-0x000f275f] [ 0.023083][ T0] Using GB pages for direct mapping [ 0.026354][ T0] ACPI: Early table checksum verification disabled [ 0.028221][ T0] ACPI: RSDP 0x00000000000F24D0 000014 (v00 Google) [ 0.030076][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.031779][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.033262][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.034806][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.036143][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.037199][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.039159][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.041056][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.042864][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.044425][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.045787][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.047095][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.049173][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.050704][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.052077][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.053170][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.054217][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.055777][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.056504][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.057348][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.058363][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.059466][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.060883][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.062883][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.065195][ T0] NODE_DATA(0) allocated [mem 0x23fffa000-0x23fffdfff] [ 0.105768][ T0] Zone ranges: [ 0.106301][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.107806][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.109380][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.110598][ T0] Movable zone start for each node [ 0.111289][ T0] Early memory node ranges [ 0.112396][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.113964][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.115642][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff] [ 0.116802][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff] [ 0.118513][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.118651][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.180469][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.493184][ T0] kasan: KernelAddressSanitizer initialized [ 0.495699][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.496420][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.497752][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.499306][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.500606][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.502448][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.503786][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.505066][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.508736][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.509782][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.511509][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.514634][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.516405][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.518184][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.519622][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.521306][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.523268][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.525000][ T0] Booting paravirtualized kernel on KVM [ 0.525989][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.567795][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.570801][ T0] percpu: Embedded 67 pages/cpu s233568 r8192 d32672 u1048576 [ 0.572725][ T0] kvm-guest: PV spinlocks enabled [ 0.573937][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.575173][ T0] Fallback order for Node 0: 0 [ 0.576239][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2064125 [ 0.578239][ T0] Policy zone: Normal [ 0.579319][ 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 [ 0.601240][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.606122][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.608642][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.610520][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.614196][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.616182][ T0] software IO TLB: area num 2. [ 1.502135][ T0] Memory: 6921704K/8388204K available (83983K kernel code, 22480K rwdata, 19020K rodata, 2220K init, 32260K bss, 1466244K reserved, 0K cma-reserved) [ 1.505927][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 1.513893][ T0] Dynamic Preempt: voluntary [ 1.515401][ T0] Running RCU self tests [ 1.516227][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.517369][ T0] rcu: RCU lockdep checking is enabled. [ 1.518231][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.519416][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.520407][ T0] rcu: RCU debug extended QS entry/exit. [ 1.521416][ T0] All grace periods are expedited (rcu_expedited). [ 1.522612][ T0] Trampoline variant of Tasks RCU enabled. [ 1.523724][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.525404][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.545696][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.547314][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.548561][ T0] random: crng init done [ 1.550247][ T0] Console: colour VGA+ 80x25 [ 1.551112][ T0] printk: console [ttyS0] enabled [ 1.551112][ T0] printk: console [ttyS0] enabled [ 1.552915][ T0] printk: bootconsole [earlyser0] disabled [ 1.552915][ T0] printk: bootconsole [earlyser0] disabled [ 1.554716][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.556137][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.556943][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.557717][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.558531][ T0] ... CLASSHASH_SIZE: 4096 [ 1.559428][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.560543][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.561582][ T0] ... CHAINHASH_SIZE: 131072 [ 1.562621][ T0] memory used by lock dependency info: 20657 kB [ 1.563580][ T0] memory used for stack traces: 8320 kB [ 1.565716][ T0] per task-struct memory footprint: 1920 bytes [ 1.566802][ T0] ACPI: Core revision 20220331 [ 1.568000][ T0] APIC: Switch to symmetric I/O mode setup [ 1.574396][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.576038][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6fcd5f2d, max_idle_ns: 440795232554 ns [ 1.578197][ T0] Calibrating delay loop (skipped) preset value.. 4400.42 BogoMIPS (lpj=22002140) [ 1.579738][ T0] pid_max: default: 32768 minimum: 301 [ 1.581106][ T0] LSM: Security Framework initializing [ 1.582242][ T0] landlock: Up and running. [ 1.583046][ T0] Yama: becoming mindful. [ 1.584232][ T0] TOMOYO Linux initialized [ 1.585413][ T0] AppArmor: AppArmor initialized [ 1.586987][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.588212][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.593235][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.595220][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.598235][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.600338][ T0] Spectre V2 : Mitigation: IBRS [ 1.601383][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.603860][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.605357][ T0] RETBleed: Mitigation: IBRS [ 1.606264][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.607972][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.608246][ T0] MDS: Mitigation: Clear CPU buffers [ 1.609335][ T0] TAA: Mitigation: Clear CPU buffers [ 1.610500][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.614127][ T0] Freeing SMP alternatives memory: 60K [ 1.738327][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.742045][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.743589][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.745030][ T1] Running RCU-tasks wait API self tests [ 1.848305][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.851058][ T1] rcu: Hierarchical SRCU implementation. [ 1.852031][ T1] rcu: Max phase no-delay instances is 1000. [ 1.856196][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.857948][ T1] smp: Bringing up secondary CPUs ... [ 1.859511][ T1] x86: Booting SMP configuration: [ 1.860790][ T1] .... node #0, CPUs: #1 [ 1.862942][ 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. [ 1.862942][ 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. [ 1.868247][ 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. [ 1.871860][ T1] smp: Brought up 1 node, 2 CPUs [ 1.872676][ T1] smpboot: Max logical packages: 1 [ 1.873632][ T1] smpboot: Total of 2 processors activated (8800.85 BogoMIPS) [ 1.919634][ T1] allocated 134217728 bytes of page_ext [ 1.921598][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.926447][ T1] Node 0, zone DMA32: page owner found early allocated 15 pages [ 1.952275][ T1] Node 0, zone Normal: page owner found early allocated 33979 pages [ 1.954729][ T1] devtmpfs: initialized [ 1.958294][ T11] Callback from call_rcu_tasks() invoked. [ 1.973693][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.978240][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.982857][ T1] PM: RTC time: 01:34:45, date: 2022-09-04 [ 1.984918][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 1.993296][ T1] audit: initializing netlink subsys (disabled) [ 1.995161][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 1.995161][ T1] thermal_sys: Registered thermal governor 'user_space' [ 1.998423][ T24] audit: type=2000 audit(1662255285.845:1): state=initialized audit_enabled=0 res=1 [ 1.998423][ T1] cpuidle: using governor menu [ 2.004610][ T1] PCI: Using configuration type 1 for base access [ 2.150202][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.150626][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.168197][ T1] ACPI: Added _OSI(Module Device) [ 2.168197][ T1] ACPI: Added _OSI(Processor Device) [ 2.168197][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.168197][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.168722][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.170482][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.172629][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.273573][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.748486][ T1] ACPI: Interpreter enabled [ 3.749970][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.751407][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.753085][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.756087][ T1] PCI: Using E820 reservations for host bridge windows [ 3.759850][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.830449][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.832328][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.834165][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.837012][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.845210][ T1] PCI host bridge to bus 0000:00 [ 3.848213][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.849905][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.851502][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.854639][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.856441][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.858586][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 3.865297][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 3.888956][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 3.913340][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.918712][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 3.928195][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 3.935049][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 3.954699][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 3.966730][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 3.973857][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 3.995252][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 4.008229][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 4.038474][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 4.042474][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 4.052023][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 4.060228][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 4.081978][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 4.093756][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 4.103044][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 4.138397][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.144115][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.149409][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.155510][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.158864][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.169115][ T1] iommu: Default domain type: Translated [ 4.169772][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 4.173029][ T1] SCSI subsystem initialized [ 4.179065][ T1] ACPI: bus type USB registered [ 4.180721][ T1] usbcore: registered new interface driver usbfs [ 4.180721][ T1] usbcore: registered new interface driver hub [ 4.180721][ T1] usbcore: registered new device driver usb [ 4.188191][ T1] mc: Linux media interface: v0.10 [ 4.188191][ T1] videodev: Linux video capture interface: v2.00 [ 4.188191][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.188191][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.190323][ T1] PTP clock support registered [ 4.198312][ T1] EDAC MC: Ver: 3.0.0 [ 4.200115][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.204282][ T1] Bluetooth: Core ver 2.22 [ 4.208339][ T1] NET: Registered PF_BLUETOOTH protocol family [ 4.209509][ T1] Bluetooth: HCI device and connection manager initialized [ 4.212992][ T1] Bluetooth: HCI socket layer initialized [ 4.214534][ T1] Bluetooth: L2CAP socket layer initialized [ 4.216378][ T1] NET: Registered PF_ATMPVC protocol family [ 4.217516][ T1] NET: Registered PF_ATMSVC protocol family [ 4.218459][ T1] NetLabel: Initializing [ 4.219343][ T1] NetLabel: domain hash size = 128 [ 4.220360][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.222435][ T1] NetLabel: unlabeled traffic allowed by default [ 4.224716][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.225978][ T1] NET: Registered PF_NFC protocol family [ 4.228183][ T1] PCI: Using ACPI for IRQ routing [ 4.230363][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.231791][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.233368][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.235050][ T1] vgaarb: loaded [ 4.240265][ T1] clocksource: Switched to clocksource kvm-clock [ 4.244770][ T1] VFS: Disk quotas dquot_6.6.0 [ 4.246086][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.250208][ T1] TOMOYO: 2.6.0 [ 4.251099][ T1] Mandatory Access Control activated. [ 4.256332][ T1] AppArmor: AppArmor Filesystem Enabled [ 4.258944][ T1] pnp: PnP ACPI init [ 4.279512][ T1] pnp: PnP ACPI: found 7 devices [ 4.336333][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.340242][ T1] NET: Registered PF_INET protocol family [ 4.342972][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 4.356628][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 4.360155][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 4.363447][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 4.372217][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 4.380817][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.384831][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.388797][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.393133][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.396786][ T1] RPC: Registered named UNIX socket transport module. [ 4.398437][ T1] RPC: Registered udp transport module. [ 4.399397][ T1] RPC: Registered tcp transport module. [ 4.400399][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.404042][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.405465][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 4.406528][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 4.407910][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 4.410884][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.412588][ T1] PCI: CLS 0 bytes, default 64 [ 4.419929][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.421691][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) [ 4.429857][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.431497][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6fcd5f2d, max_idle_ns: 440795232554 ns [ 4.433500][ T1] clocksource: Switched to clocksource tsc [ 4.438944][ T41] kworker/u4:2 (41) used greatest stack depth: 27648 bytes left [ 4.451324][ T46] kworker/u4:1 (46) used greatest stack depth: 27104 bytes left [ 4.622740][ T1] Initialise system trusted keyrings [ 4.626903][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 4.674761][ T1] NFS: Registering the id_resolver key type [ 4.676204][ T1] Key type id_resolver registered [ 4.677699][ T1] Key type id_legacy registered [ 4.679705][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.691798][ T1] Key type asymmetric registered [ 4.693389][ T1] Asymmetric key parser 'x509' registered [ 4.695577][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 4.698721][ T1] io scheduler mq-deadline registered [ 4.700093][ T1] io scheduler kyber registered [ 4.717111][ T1] usbcore: registered new interface driver udlfb [ 4.719686][ T1] usbcore: registered new interface driver smscufx [ 4.724347][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.730772][ T1] ACPI: button: Power Button [PWRF] [ 4.733897][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.736413][ T1] ACPI: button: Sleep Button [SLPF] [ 4.756838][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.760050][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.779812][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.780782][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.800446][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.801747][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 4.815344][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 4.822942][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.825607][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.829546][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.832294][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.835101][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.841178][ T1] Non-volatile memory driver v1.3 [ 4.863340][ T1] Linux agpgart interface v0.103 [ 4.867466][ T1] ACPI: bus type drm_connector registered [ 4.872976][ T1] usbcore: registered new interface driver udl [ 4.905334][ T1] loop: module loaded [ 4.907622][ T1] usbcore: registered new interface driver rtsx_usb [ 4.909723][ T1] usbcore: registered new interface driver viperboard [ 4.911709][ T1] usbcore: registered new interface driver dln2 [ 4.914330][ T1] usbcore: registered new interface driver pn533_usb [ 4.916227][ T1] usbcore: registered new interface driver port100 [ 4.917850][ T1] usbcore: registered new interface driver nfcmrvl [ 4.940190][ T1] scsi host0: Virtio SCSI HBA [ 4.981897][ T1] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.110269][ T8] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.111826][ T8] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.113168][ T8] sd 0:0:1:0: [sda] Write Protect is off [ 5.114607][ T8] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.125207][ T8] sda: sda1 [ 5.127036][ T8] sd 0:0:1:0: [sda] Attached SCSI disk [ 5.130908][ T1] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.139546][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 5.142022][ T1] db_root: cannot open: /etc/target [ 5.223663][ T1] CAN device driver interface [ 5.225370][ T1] usbcore: registered new interface driver usb_8dev [ 5.225912][ T258] BUG: unable to handle page fault for address: ffffdc0000000000 [ 5.226750][ T1] usbcore: registered new interface driver ems_usb [ 5.227691][ T258] #PF: supervisor read access in kernel mode [ 5.229969][ T258] #PF: error_code(0x0000) - not-present page [ 5.230161][ T1] usbcore: registered new interface driver gs_usb [ 5.231578][ T258] PGD 100026067 P4D 100026067 PUD 0 [ 5.233206][ T1] usbcore: registered new interface driver kvaser_usb [ 5.232564][ T258] Oops: 0000 [#1] PREEMPT SMP KASAN [ 5.235049][ T1] usbcore: registered new interface driver mcba_usb [ 5.232564][ T258] CPU: 1 PID: 258 Comm: kworker/u4:2 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.238047][ T1] usbcore: registered new interface driver peak_usb [ 5.232564][ T258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 5.232564][ T258] RIP: 0010:strnlen+0x3b/0x70 [ 5.239992][ T1] e100: Intel(R) PRO/100 Network Driver [ 5.232564][ T258] Code: 74 3c 48 bb 00 00 00 00 00 fc ff df 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <0f> b6 14 1a 38 ca 7f 04 84 d2 75 11 80 38 00 75 d9 4c 29 e0 48 83 [ 5.242022][ T1] e100: Copyright(c) 1999-2006 Intel Corporation [ 5.232564][ T258] RSP: 0000:ffffc9000189fe08 EFLAGS: 00010246 [ 5.246656][ T1] e1000: Intel(R) PRO/1000 Network Driver [ 5.232564][ T258] [ 5.232564][ T258] RAX: ffff000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 5.248204][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 5.232564][ T258] RDX: 1fffe00000000000 RSI: 0000000000020000 RDI: ffff000000000000 [ 5.249850][ T1] e1000e: Intel(R) PRO/1000 Network Driver [ 5.232564][ T258] RBP: ffff000000020000 R08: 0000000000000005 R09: 0000000000000000 [ 5.252444][ T1] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 5.252645][ T1] sky2: driver version 1.30 [ 5.232564][ T258] R10: 0000000000000006 R11: 0000000000000000 R12: ffff000000000000 [ 5.255437][ T1] usbcore: registered new interface driver ath9k_htc [ 5.232564][ T258] R13: ffff000000000000 R14: dffffc0000000000 R15: 1ffff11021ce8000 [ 5.257687][ T1] usbcore: registered new interface driver carl9170 [ 5.232564][ T258] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.232564][ T258] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.232564][ T258] CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.264884][ T1] usbcore: registered new interface driver ath6kl_usb [ 5.261596][ T258] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.266753][ T1] usbcore: registered new interface driver ar5523 [ 5.261596][ T258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.268944][ T1] usbcore: registered new interface driver ath10k_usb [ 5.261596][ T258] Call Trace: [ 5.261596][ T258] [ 5.270940][ T1] Atmel at76x USB Wireless LAN Driver 0.17 loading [ 5.272089][ T1] usbcore: registered new interface driver at76c50x-usb [ 5.261596][ T258] copy_string_kernel+0x27/0x460 [ 5.274866][ T1] usbcore: registered new interface driver brcmfmac [ 5.261596][ T258] ? memcpy+0x39/0x60 [ 5.275818][ T1] orinoco 0.15 (David Gibson , Pavel Roskin , et al) [ 5.261596][ T258] copy_strings_kernel+0xb3/0x190 [ 5.279625][ T1] usbcore: registered new interface driver orinoco_usb [ 5.278246][ T258] kernel_execve+0x377/0x500 [ 5.281695][ T1] usbcore: registered new interface driver p54usb [ 5.278246][ T258] call_usermodehelper_exec_async+0x2e3/0x580 [ 5.283792][ T1] usbcore: registered new interface driver usb8xxx [ 5.278246][ T258] ? umh_complete+0x90/0x90 [ 5.286325][ T1] usbcore: registered new interface driver lbtf_usb [ 5.278246][ T258] ret_from_fork+0x1f/0x30 [ 5.287904][ T1] usbcore: registered new interface driver mwifiex_usb [ 5.278246][ T258] [ 5.278246][ T258] Modules linked in: [ 5.278246][ T258] CR2: ffffdc0000000000 [ 5.278246][ T258] ---[ end trace 0000000000000000 ]--- [ 5.289764][ T1] usbcore: registered new interface driver mt7601u [ 5.278246][ T258] RIP: 0010:strnlen+0x3b/0x70 [ 5.292855][ T1] usbcore: registered new interface driver rt2500usb [ 5.291759][ T258] Code: 74 3c 48 bb 00 00 00 00 00 fc ff df 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <0f> b6 14 1a 38 ca 7f 04 84 d2 75 11 80 38 00 75 d9 4c 29 e0 48 83 [ 5.294413][ T1] usbcore: registered new interface driver rt73usb [ 5.291759][ T258] RSP: 0000:ffffc9000189fe08 EFLAGS: 00010246 [ 5.296561][ T1] usbcore: registered new interface driver rt2800usb [ 5.291759][ T258] [ 5.291759][ T258] RAX: ffff000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 5.302884][ T1] usbcore: registered new interface driver rtl8187 [ 5.291759][ T258] RDX: 1fffe00000000000 RSI: 0000000000020000 RDI: ffff000000000000 [ 5.304814][ T1] usbcore: registered new interface driver rtl8192cu [ 5.291759][ T258] RBP: ffff000000020000 R08: 0000000000000005 R09: 0000000000000000 [ 5.291759][ T258] R10: 0000000000000006 R11: 0000000000000000 R12: ffff000000000000 [ 5.308441][ T1] usbcore: registered new interface driver rtl8xxxu [ 5.291759][ T258] R13: ffff000000000000 R14: dffffc0000000000 R15: 1ffff11021ce8000 [ 5.311411][ T1] usbcore: registered new interface driver RSI-USB WLAN [ 5.291759][ T258] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 5.318578][ T1] usbcore: registered new interface driver zd1211rw [ 5.291759][ T258] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.321170][ T1] usbcore: registered new interface driver zd1201 [ 5.321146][ T258] CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506e0 [ 5.323604][ T1] usbcore: registered new interface driver rndis_wlan [ 5.323150][ T258] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.325499][ T1] usbcore: registered new interface driver atusb [ 5.325468][ T258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.328577][ T1] usbcore: registered new interface driver catc [ 5.328536][ T258] Kernel panic - not syncing: Fatal exception [ 5.328536][ T258] Kernel Offset: disabled [ 5.328536][ T258] 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-build17107303=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 79248ee88 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=79248ee88b39eb1a5b730f3bc0a995efed4d6a2c -X 'github.com/google/syzkaller/sys.gitRevisionDate=Wed Oct 30 10:00:55 2019 -0700'" "-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=79248ee88b39eb1a5b730f3bc0a995efed4d6a2c -X 'github.com/google/syzkaller/sys.gitRevisionDate=Wed Oct 30 10:00:55 2019 -0700'" "-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=79248ee88b39eb1a5b730f3bc0a995efed4d6a2c -X 'github.com/google/syzkaller/sys.gitRevisionDate=Wed Oct 30 10:00:55 2019 -0700'" "-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=\"79248ee88b39eb1a5b730f3bc0a995efed4d6a2c\" make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'