failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.0.103" "pwd"]: exit status 255 ssh: connect to host 10.128.0.103 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[us-central1-ssh-serialport.googleapis.com]:9600' (ECDSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-a.ci-upstream-linux-next-kasan-gce-root-1 port 1 (session ID: 33cdeb2497a8b26d202c4f5dbfa076b67d03e4538831c8814af16dd0c408b454, 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 b127c6a1-3eea-3609-3ef4-a513451b2f79 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 0x000f25d0: 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 syzkaller (syzkaller@syzkaller) (Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6) #0 SMP PREEMPT_RT 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/CPU: Model not found in latest microcode list [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] System RAM [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] device reserved [ 0.000000][ T0] BIOS-e820: [gap 0x00000000000a0000-0x00000000000effff] [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] device reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] System RAM [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] device reserved [ 0.000000][ T0] BIOS-e820: [gap 0x00000000c0000000-0x00000000fffbbfff] [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] device reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] System RAM [ 0.000000][ T0] printk: legacy bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] Hash pointers mode set to never. [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] APIC: Static calls initialized [ 0.000000][ T0] DMI: SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 0.000000][ T0] DMI: Memory slots populated: 1/1 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000006][ T0] kvm-clock: using sched offset of 11214811656 cycles [ 0.000014][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000034][ T0] tsc: Detected 2200.164 MHz processor [ 0.003824][ T0] e820: update [mem 0x00000000-0x00000fff] System RAM ==> device reserved [ 0.003840][ T0] e820: remove [mem 0x000a0000-0x000fffff] System RAM [ 0.003857][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.003914][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.003926][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.003991][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.008958][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.008984][ T0] Using GB pages for direct mapping [ 0.012664][ T0] ACPI: Early table checksum verification disabled [ 0.012686][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.012703][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.012725][ T0] ACPI: FACP 0x00000000BFFFF370 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.012749][ T0] ACPI: DSDT 0x00000000BFFFD900 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.012769][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012783][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012797][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.012815][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.012833][ T0] ACPI: SSDT 0x00000000BFFFF470 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.012851][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.012872][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff370-0xbffff463] [ 0.012880][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd900-0xbffff363] [ 0.012887][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012895][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012901][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.012909][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.012916][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff470-0xbffffdef] [ 0.012923][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.013032][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.013044][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.013054][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.013066][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.013079][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.013103][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.013112][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.013196][ T0] NODE_DATA(0) allocated [mem 0x13fffac80-0x140000fff] [ 0.013931][ T0] NODE_DATA(1) allocated [mem 0x23fff6c80-0x23fffcfff] [ 0.285064][ T0] KernelAddressSanitizer initialized (generic) [ 0.285534][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.285567][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.285667][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.285682][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.285692][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.285700][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.285708][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.285728][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.285741][ T0] CPU topo: Max. logical packages: 1 [ 0.285746][ T0] CPU topo: Max. logical nodes: 1 [ 0.285750][ T0] CPU topo: Num. nodes per package: 1 [ 0.285759][ T0] CPU topo: Max. logical dies: 1 [ 0.285763][ T0] CPU topo: Max. dies per package: 1 [ 0.285776][ T0] CPU topo: Max. threads per core: 2 [ 0.285781][ T0] CPU topo: Num. cores per package: 1 [ 0.285786][ T0] CPU topo: Num. threads per package: 2 [ 0.285790][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.285903][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.285913][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.285923][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.285946][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.285953][ T0] Booting paravirtualized kernel on KVM [ 0.285964][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.413736][ T0] Zone ranges: [ 0.413745][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.413757][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.413766][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.413774][ T0] Device empty [ 0.413779][ T0] Movable zone start for each node [ 0.413783][ T0] Early memory node ranges [ 0.413786][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.413794][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.413812][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.413819][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.413829][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.413847][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 0.413896][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.414171][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.485348][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.556788][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 0.557466][ T0] percpu: Embedded 72 pages/cpu s254408 r8192 d32312 u1048576 [ 0.557496][ T0] pcpu-alloc: s254408 r8192 d32312 u1048576 alloc=1*2097152 [ 0.557509][ T0] pcpu-alloc: [0] 0 1 [ 0.557640][ T0] kvm-guest: PV spinlocks enabled [ 0.557651][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.557671][ 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 rcupdate.rcu_cpu_stall_cputime=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 coredump_filter=0xffff root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=64 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=32 rose.rose_ndevs=32 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=32 max_loop=32 nbds_max=32 \ [ 0.557701][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.562231][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 0.562300][ T0] random: crng init done [ 0.562304][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 0.562508][ T0] software IO TLB: area num 2. [ 0.587411][ T0] Fallback order for Node 0: 0 1 [ 0.587432][ T0] Fallback order for Node 1: 1 0 [ 0.587446][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 0.587454][ T0] Policy zone: Normal [ 0.588073][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.588083][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 0.588094][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 0.592188][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.150591][ T0] ********************************************************** [ 1.150602][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.150606][ T0] ** ** [ 1.150611][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.150615][ T0] ** via the console, logs, and other interfaces. This ** [ 1.150619][ T0] ** might reduce the security of your system. ** [ 1.150623][ T0] ** ** [ 1.150627][ T0] ** If you see this message and you are not debugging ** [ 1.150631][ T0] ** the kernel, report this immediately to your system ** [ 1.150635][ T0] ** administrator! ** [ 1.150639][ T0] ** ** [ 1.150643][ T0] ** Use hash_pointers=always to force this mode off ** [ 1.150647][ T0] ** ** [ 1.150650][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.150654][ T0] ********************************************************** [ 1.154025][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.275703][ T0] allocated 167772160 bytes of page_ext [ 1.275741][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.290033][ T0] Node 0, zone DMA32: page owner found early allocated 21120 pages [ 1.294845][ T0] Node 0, zone Normal: page owner found early allocated 131 pages [ 1.306174][ T0] Node 1, zone Normal: page owner found early allocated 19848 pages [ 1.306647][ T0] Kernel/User page tables isolation: enabled [ 1.308854][ T0] Dynamic Preempt: full [ 1.310029][ T0] Running RCU self tests [ 1.310034][ T0] Running RCU synchronous self tests [ 1.310039][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.310043][ T0] rcu: RCU lockdep checking is enabled. [ 1.310047][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.310053][ T0] rcu: RCU priority boosting: priority 1 delay 500 ms. [ 1.310060][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.310064][ T0] rcu: RCU_SOFTIRQ processing moved to rcuc kthreads. [ 1.310068][ T0] rcu: RCU debug extended QS entry/exit. [ 1.310072][ T0] No expedited grace period (rcu_normal_after_boot). [ 1.310076][ T0] Trampoline variant of Tasks RCU enabled. [ 1.310079][ T0] Tracing variant of Tasks RCU enabled. [ 1.310083][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.310089][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.310258][ T0] Running RCU synchronous self tests [ 1.310292][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 1.485813][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.486915][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.486965][ T0] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.486976][ T0] [ 1.486979][ T0] ============================= [ 1.486982][ T0] [ BUG: Invalid wait context ] [ 1.486987][ T0] syzkaller #0 Not tainted [ 1.486992][ T0] ----------------------------- [ 1.486995][ T0] swapper/0/0 is trying to lock: [ 1.487000][ T0] ffffffff8dff64b8 (clocksource_mutex){....}-{4:4}, at: __clocksource_register_scale+0x921/0xff0 [ 1.487031][ T0] other info that might help us debug this: [ 1.487035][ T0] context-{5:5} [ 1.487039][ T0] 1 lock held by swapper/0/0: [ 1.487045][ T0] #0: ffffffff9984d9f0 (&tkd->lock){....}-{2:2}, at: timekeeping_init+0x227/0x390 [ 1.487075][ T0] stack backtrace: [ 1.487082][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 1.487094][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 1.487101][ T0] Call Trace: [ 1.487105][ T0] [ 1.487110][ T0] dump_stack_lvl+0xe8/0x150 [ 1.487124][ T0] __lock_acquire+0xe39/0x2ce0 [ 1.487141][ T0] ? __wake_up_klogd+0xe6/0x120 [ 1.487153][ T0] ? vprintk_emit+0x4eb/0x560 [ 1.487164][ T0] ? __pfx_vprintk_emit+0x10/0x10 [ 1.487176][ T0] ? __clocksource_register_scale+0x921/0xff0 [ 1.487187][ T0] lock_acquire+0x106/0x350 [ 1.487200][ T0] ? __clocksource_register_scale+0x921/0xff0 [ 1.487213][ T0] ? __pfx__printk+0x10/0x10 [ 1.487223][ T0] ? __might_resched+0x22/0x480 [ 1.487234][ T0] ? __clocksource_register_scale+0x921/0xff0 [ 1.487245][ T0] mutex_lock_nested+0x5a/0x1d0 [ 1.487257][ T0] ? __clocksource_register_scale+0x921/0xff0 [ 1.487270][ T0] __clocksource_register_scale+0x921/0xff0 [ 1.487283][ T0] clocksource_default_clock+0x20/0x40 [ 1.487298][ T0] timekeeping_init+0x236/0x390 [ 1.487312][ T0] ? __pfx_timekeeping_init+0x10/0x10 [ 1.487326][ T0] ? __split_page_owner+0x2d/0x300 [ 1.487340][ T0] ? __split_page_owner+0x2d/0x300 [ 1.487351][ T0] ? vdso_setup_data_pages+0xa3/0x130 [ 1.487364][ T0] ? __asan_memcpy+0x40/0x70 [ 1.487374][ T0] start_kernel+0x1db/0x3e0 [ 1.487388][ T0] x86_64_start_reservations+0x24/0x30 [ 1.487399][ T0] x86_64_start_kernel+0x137/0x1b0 [ 1.487409][ T0] common_startup_64+0x13e/0x157 [ 1.487423][ T0] [ 1.487972][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 1.489074][ T0] Console: colour VGA+ 80x25 [ 1.682270][ T0] printk: legacy console [ttyS0] enabled [ 1.682280][ T0] printk: legacy bootconsole [earlyser0] disabled [ 1.682297][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.682302][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.682306][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.682311][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.682315][ T0] ... CLASSHASH_SIZE: 4096 [ 1.682319][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 1.682324][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 1.682328][ T0] ... CHAINHASH_SIZE: 524288 [ 1.682333][ T0] memory used by lock dependency info: 106625 kB [ 1.682338][ T0] memory used for stack traces: 8320 kB [ 1.682342][ T0] per task-struct memory footprint: 1920 bytes [ 1.682542][ T0] ACPI: Core revision 20260408 [ 1.683292][ T0] APIC: Switch to symmetric I/O mode setup [ 1.683768][ T0] x2apic enabled [ 1.686090][ T0] APIC: Switched APIC routing to: physical x2apic [ 1.690222][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.690426][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6cdb0489, max_idle_ns: 440795236064 ns [ 1.690450][ T0] Calibrating delay loop (skipped) preset value.. 4400.32 BogoMIPS (lpj=22001640) [ 1.691021][ T0] numa_add_cpu cpu 0 node 0: mask now 0 [ 1.691031][ T0] numa_add_cpu cpu 0 node 1: mask now 0 [ 1.691041][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.691048][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 1.691090][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 1.691108][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.691115][ T0] Spectre V2 : Mitigation: IBRS [ 1.691118][ T0] RETBleed: Mitigation: IBRS [ 1.691122][ T0] ITS: Mitigation: Aligned branch/return thunks [ 1.691126][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 1.691130][ T0] MDS: Mitigation: Clear CPU buffers [ 1.691134][ T0] TAA: Mitigation: Clear CPU buffers [ 1.691137][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.691143][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.691150][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 1.691161][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.691189][ T0] active return thunk: its_return_thunk [ 1.691201][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 1.691223][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 1.691230][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 1.691235][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 1.691241][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 1.691248][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 1.930362][ T0] pid_max: default: 32768 minimum: 301 [ 1.931336][ T0] landlock: Up and running. [ 1.931342][ T0] Yama: becoming mindful. [ 1.931562][ T0] TOMOYO Linux initialized [ 1.932214][ T0] AppArmor: AppArmor initialized [ 1.933441][ T0] LSM support for eBPF active [ 1.938350][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 1.940751][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 1.941040][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.941170][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.942501][ T0] VFS: Finished mounting rootfs on nullfs [ 1.944741][ T0] Running RCU synchronous self tests [ 1.944749][ T0] Running RCU synchronous self tests [ 2.065374][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.067902][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 2.068020][ T1] signal: max sigframe size: 1776 [ 2.070463][ T1] rcu: Hierarchical SRCU implementation. [ 2.070469][ T1] rcu: Max phase no-delay instances is 1000. [ 2.080712][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 2.163395][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.163951][ T1] smp: Bringing up secondary CPUs ... [ 2.172681][ T1] smpboot: x86: Booting SMP configuration: [ 2.172687][ T1] .... node #0, CPUs: #1 [ 0.203491][ T0] numa_add_cpu cpu 1 node 0: mask now 0-1 [ 0.203491][ T0] numa_add_cpu cpu 1 node 1: mask now 0-1 [ 2.173894][ 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. [ 2.173908][ 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. [ 2.173919][ 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. [ 2.173986][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.173998][ T1] smpboot: Total of 2 processors activated (8800.65 BogoMIPS) [ 2.174809][ T1] Memory: 6466292K/8388204K available (167232K kernel code, 29637K rwdata, 39824K rodata, 25512K init, 129248K bss, 1733780K reserved, 0K cma-reserved) [ 2.176164][ T1] devtmpfs: initialized [ 2.180466][ T1] x86/mm: Memory block size: 128MB [ 2.225085][ T1] Running RCU synchronous self tests [ 2.225106][ T1] Running RCU synchronous self tests [ 2.225136][ T1] Running RCU Tasks wait API self tests [ 2.225136][ T1] Running RCU Tasks Trace wait API self tests [ 2.225136][ T36] Callback from call_rcu_tasks() invoked. [ 2.230719][ T1] posixtimers hash table entries: 1024 (order: 6, 139264 bytes, vmalloc) [ 2.230889][ T1] futex hash table entries: 256 (49152 bytes on 2 NUMA nodes, total 96 KiB, linear). [ 2.231938][ T1] xor: automatically using best checksumming function avx [ 2.234112][ T1] PM: RTC time: 15:21:47, date: 2026-06-16 [ 2.241889][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.249409][ T1] audit: initializing netlink subsys (disabled) [ 2.250683][ T38] audit: type=2000 audit(1781623307.040:1): state=initialized audit_enabled=0 res=1 [ 2.254176][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.254277][ T1] cpuidle: using governor menu [ 2.254277][ T1] NET: Registered PF_QIPCRTR protocol family [ 2.261860][ T1] Freeing SMP alternatives memory: 128K [ 2.264570][ T1] dca service started, version 1.12.1 [ 2.264763][ T1] PCI: Using configuration type 1 for base access [ 2.280509][ T10] Callback from call_rcu_tasks_trace() invoked. [ 2.290528][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 2.290528][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 2.290537][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.290547][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.304198][ T1] raid6: using avx2x2 recovery algorithm [ 2.304210][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 2.306953][ T1] ACPI: Added _OSI(Module Device) [ 2.306964][ T1] ACPI: Added _OSI(Processor Device) [ 2.306973][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.462762][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.513165][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 2.534834][ T1] ACPI: Interpreter enabled [ 2.535248][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.535260][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.535646][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.535658][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 2.540773][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 2.745531][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 2.745620][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 2.745640][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 2.745895][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 2.746260][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 2.762725][ T1] PCI host bridge to bus 0000:00 [ 2.762739][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 2.763054][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 2.763084][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 2.763112][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 2.763141][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 2.763174][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.763402][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 2.766371][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 2.772327][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 2.775117][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 2.779211][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 2.781688][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 2.781723][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 2.786563][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 2.789054][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 2.789089][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 2.793634][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 2.799298][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 2.800009][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 2.805031][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 2.807438][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 2.812032][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 2.814218][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 2.814250][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 2.851398][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 2.857449][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 2.863142][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 2.868815][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 2.871810][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 2.900514][ T1] iommu: Default domain type: Translated [ 2.900528][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 2.903906][ T1] SCSI subsystem initialized [ 2.910854][ T1] libata version 3.00 loaded. [ 2.912370][ T1] ACPI: bus type USB registered [ 2.913236][ T1] usbcore: registered new interface driver usbfs [ 2.915461][ T1] usbcore: registered new interface driver hub [ 2.915756][ T1] usbcore: registered new device driver usb [ 2.918626][ T1] mc: Linux media interface: v0.10 [ 2.918925][ T1] videodev: Linux video capture interface: v2.00 [ 2.919746][ T1] pps_core: LinuxPPS API ver. 1 registered [ 2.919755][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 2.919881][ T1] PTP clock support registered [ 2.930722][ T1] EDAC MC: Ver: 3.0.0 [ 2.938484][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 2.953889][ T1] Bluetooth: Core ver 2.22 [ 2.954105][ T1] NET: Registered PF_BLUETOOTH protocol family [ 2.954115][ T1] Bluetooth: HCI device and connection manager initialized [ 2.954153][ T1] Bluetooth: HCI socket layer initialized [ 2.954179][ T1] Bluetooth: L2CAP socket layer initialized [ 2.954254][ T1] Bluetooth: SCO socket layer initialized [ 2.954324][ T1] NET: Registered PF_ATMPVC protocol family [ 2.954333][ T1] NET: Registered PF_ATMSVC protocol family [ 2.954632][ T1] NetLabel: Initializing [ 2.954639][ T1] NetLabel: domain hash size = 128 [ 2.954647][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 2.955080][ T1] NetLabel: unlabeled traffic allowed by default [ 2.958826][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 2.958826][ T1] NET: Registered PF_NFC protocol family [ 2.958826][ T1] mctp: management component transport protocol core [ 2.958826][ T1] NET: Registered PF_MCTP protocol family [ 2.958826][ T1] PCI: Using ACPI for IRQ routing [ 2.958826][ T1] PCI: pci_cache_line_size set to 64 bytes [ 2.958826][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 2.958826][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 2.970797][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 2.970814][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 2.970825][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 2.970851][ T1] vgaarb: loaded [ 2.980441][ T1] clocksource: Switched to clocksource kvm-clock [ 2.981885][ T1] VFS: Disk quotas dquot_6.6.0 [ 2.982066][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 2.992531][ T1] netfs: FS-Cache loaded [ 2.993930][ T1] CacheFiles: Loaded [ 2.994637][ T1] TOMOYO: 2.6.0 [ 2.994645][ T1] Mandatory Access Control activated. [ 2.999140][ T1] AppArmor: AppArmor Filesystem Enabled [ 2.999904][ T1] pnp: PnP ACPI init [ 3.026035][ T1] pnp: PnP ACPI: found 6 devices [ 3.090648][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 3.092021][ T1] NET: Registered PF_INET protocol family [ 3.093281][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.107166][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 8, 557056 bytes, vmalloc) [ 3.107890][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 3.108649][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 3.128049][ T1] TCP bind hash table entries: 65536 (order: 13, 17825792 bytes, vmalloc hugepage) [ 3.142059][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 3.145517][ T1] MPTCP token hash table entries: 8192 (order: 9, 1245184 bytes, vmalloc) [ 3.148056][ T1] UDP hash table entries: 4096 (order: 9, 1835008 bytes, vmalloc) [ 3.150516][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.158032][ T1] RPC: Registered named UNIX socket transport module. [ 3.158045][ T1] RPC: Registered udp transport module. [ 3.158053][ T1] RPC: Registered tcp transport module. [ 3.158061][ T1] RPC: Registered tcp-with-tls transport module. [ 3.158070][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.161626][ T1] NET: Registered PF_XDP protocol family [ 3.161822][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 3.161843][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 3.161860][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 3.161877][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 3.163251][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.174434][ T1] PCI: CLS 0 bytes, default 64 [ 3.176061][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 3.176074][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 3.176619][ T1] ACPI: bus type thunderbolt registered [ 3.183973][ T68] kworker/u8:3 (68) used greatest stack depth: 26832 bytes left [ 3.193451][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 3.218132][ T1] kvm_amd: CPU 0 isn't AMD or Hygon [ 3.218157][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6cdb0489, max_idle_ns: 440795236064 ns [ 3.218539][ T1] clocksource: Switched to clocksource tsc [ 3.248736][ T1] Initialise system trusted keyrings [ 3.250201][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 3.257206][ T1] DLM installed [ 3.262043][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 3.268568][ T1] NFS: Registering the id_resolver key type [ 3.268637][ T1] Key type id_resolver registered [ 3.268647][ T1] Key type id_legacy registered [ 3.268829][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 3.268872][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 3.272578][ T1] smbdirect: subsystem loading... [ 3.280698][ T1] smbdirect: subsystem loaded [ 3.312728][ T1] Key type cifs.spnego registered [ 3.313011][ T1] Key type cifs.idmap registered [ 3.316856][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 3.316866][ T1] ntfs3: Read-only LZX/Xpress compression included [ 3.317206][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 3.317346][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 3.319412][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 3.319617][ T1] QNX4 filesystem 0.2.3 registered. [ 3.319701][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 3.320482][ T1] fuse: init (API version 7.45) [ 3.323473][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 3.334296][ T1] orangefs_init: module version upstream loaded [ 3.335471][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 3.351129][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 3.359416][ T1] 9p: Installing v9fs 9p2000 file system support [ 3.360052][ T1] NILFS version 2 loaded [ 3.360061][ T1] befs: version: 0.9.3 [ 3.360901][ T1] ocfs2: Registered cluster interface o2cb [ 3.361867][ T1] ocfs2: Registered cluster interface user [ 3.362405][ T1] OCFS2 User DLM kernel interface loaded [ 3.397823][ T1] gfs2: GFS2 installed [ 3.411171][ T1] ceph: loaded (mds proto 32) [ 3.427159][ T1] NET: Registered PF_ALG protocol family [ 3.427333][ T1] async_tx: api initialized (async) [ 3.427381][ T1] Key type asymmetric registered [ 3.427396][ T1] Asymmetric key parser 'x509' registered [ 3.427408][ T1] Asymmetric key parser 'pkcs8' registered [ 3.427419][ T1] Key type pkcs7_test registered [ 3.427940][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) [ 3.439928][ T1] io scheduler mq-deadline registered [ 3.439942][ T1] io scheduler kyber registered [ 3.440210][ T1] io scheduler bfq registered [ 3.458667][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 3.460031][ T1] ACPI: button: Power Button [PWRF] [ 3.462443][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 3.467224][ T1] ACPI: button: Sleep Button [SLPF] [ 3.480850][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 3.505871][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 3.506007][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 3.534942][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 3.535068][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 3.561073][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 3.561172][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 3.580981][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 4.074604][ T1] N_HDLC line discipline registered with maxframe=4096 [ 4.075376][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.079740][ T1] 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.097506][ T1] 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.110693][ T1] 00:04: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.122734][ T1] 00:05: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.149347][ T1] Non-volatile memory driver v1.3 [ 4.180196][ T1] usbcore: registered new interface driver xillyusb [ 4.189757][ T1] ACPI: bus type drm_connector registered [ 4.195996][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 4.205906][ T1] [drm] Initialized vkms 1.0.0 for vkms on minor 1 [ 4.327507][ T1] Console: switching to colour frame buffer device 128x48 [ 4.391580][ T1] faux_driver vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 4.392051][ T1] usbcore: registered new interface driver udl [ 4.398504][ T1] usbcore: registered new interface driver gm12u320 [ 4.399421][ T1] usbcore: registered new interface driver gud [ 4.492204][ T1] brd: module loaded [ 4.732940][ T1] loop: module loaded [ 4.934174][ T1] zram: Added device: zram0 [ 4.950120][ T1] null_blk: disk nullb0 created [ 4.950134][ T1] null_blk: module loaded [ 4.964943][ T1] Guest personality initialized and is inactive [ 4.965872][ T1] VMCI host device registered (name=vmci, major=10, minor=267) [ 4.965887][ T1] Initialized host personality [ 4.966868][ T1] usbcore: registered new interface driver rtsx_usb [ 4.971050][ T1] usbcore: registered new interface driver viperboard [ 4.972501][ T1] usbcore: registered new interface driver dln2 [ 5.003485][ T1] usbcore: registered new interface driver pn533_usb [ 5.025621][ T1] nfcsim 0.2 initialized [ 5.026134][ T1] usbcore: registered new interface driver port100 [ 5.026518][ T1] usbcore: registered new interface driver nfcmrvl [ 5.032615][ T1] Loading iSCSI transport class v2.0-870. [ 5.070825][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues [ 5.086822][ T1] scsi host0: Virtio SCSI HBA [ 5.086997][ T1] blk-mq: reduced tag depth to 10240 [ 5.222476][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 5.232130][ T67] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.281748][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 5.282567][ T1] db_root: cannot open: /etc/target [ 5.292489][ T1] slram: not enough parameters. [ 5.307337][ T1] ftl_cs: FTL header not found. [ 5.357936][ T1] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. [ 5.357950][ T1] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. [ 5.357962][ T1] eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) [ 5.412688][ T1] MACsec IEEE 802.1AE [ 5.448184][ T1] usbcore: registered new interface driver mvusb_mdio [ 5.450752][ T1] tun: Universal TUN/TAP device driver, 1.6 [ 5.561660][ T1] vcan: Virtual CAN interface driver [ 5.561724][ T1] vxcan: Virtual CAN Tunnel driver [ 5.561756][ T1] slcan: serial line CAN interface driver [ 5.561795][ T1] CAN device driver interface [ 5.563416][ T1] usbcore: registered new interface driver usb_8dev [ 5.565760][ T1] usbcore: registered new interface driver ems_usb [ 5.566310][ T1] usbcore: registered new interface driver esd_usb [ 5.566978][ T1] usbcore: registered new interface driver etas_es58x [ 5.568062][ T1] usbcore: registered new interface driver f81604 [ 5.568770][ T1] usbcore: registered new interface driver gs_usb [ 5.569752][ T1] usbcore: registered new interface driver kvaser_usb [ 5.570156][ T1] usbcore: registered new interface driver mcba_usb [ 5.571692][ T1] usbcore: registered new i[ 5.571692][ T1] usbcore: registered new interface driver peak_usb [ 5.572527][ T1] usbcore: registered new interface driver ucan [ 5.574310][ T1] e100: Intel(R) PRO/100 Network Driver [ 5.574320][ T1] e100: Copyright(c) 1999-2006 Intel Corporation [ 5.575214][ T1] e1000: Intel(R) PRO/1000 Network Driver [ 5.575223][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 5.575946][ T1] e1000e: Intel(R) PRO/1000 Network Driver [ 5.575954][ T1] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 5.578059][ T1] PPP generic driver version 2.4.2 [ 5.580344][ T1] PPP BSD Compression module registered [ 5.580371][ T1] PPP Deflate Compression module registered [ 5.580387][ T1] PPP MPPE Compression module registered [ 5.580399][ T1] NET: Registered PF_PPPOX protocol family [ 5.580496][ T1] PPTP driver version 0.8.5 [ 5.581082][ T1] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled). [ 5.581095][ T1] CSLIP: code copyright 1989 Regents of the University of California. [ 5.581102][ T1] SLIP linefill/keepalive option. [ 5.581118][ T1] hdlc: HDLC support module revision 1.22 [ 5.581175][ T1] LAPB Ethernet driver version 0.02 [ 5.583179][ T1] usbcore: registered new interface driver ath9k_htc [ 5.584284][ T1] usbcore: registered new interface driver carl9170 [ 5.585066][ T1] usbcore: registered new interface driver ath6kl_usb [ 5.585460][ T1] usbcore: registered new interface driver ar5523 [ 5.586250][ T1] usbcore: registered new interface driver ath10k_usb [ 5.586620][ T1] usbcore: registered new interface driver plfxlc [ 5.588457][ T1] mac80211_hwsim: initializing netlink [ 5.592154][ T1] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht' [ 5.608670][ T1] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht' [ 5.629566][ T1] usbcore: registered new interface driver atusb [ 5.648631][ T1238] ================================================================== [ 5.648644][ T1238] BUG: KASAN: slab-use-after-free in do_raw_spin_lock+0x28b/0x2f0 [ 5.648670][ T1238] Read of size 4 at addr ffff8880273f9df4 by task kworker/u8:6/1238 [ 5.648684][ T1238] [ 5.648709][ T1238] CPU: 0 UID: 0 PID: 1238 Comm: kworker/u8:6 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 5.648729][ T1238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 5.648747][ T1238] Call Trace: [ 5.648757][ T1238] [ 5.648769][ T1238] dump_stack_lvl+0xe8/0x150 [ 5.648792][ T1238] print_address_description+0x55/0x1e0 [ 5.648816][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.648835][ T1238] print_report+0x58/0x70 [ 5.648855][ T1238] kasan_report+0x117/0x150 [ 5.648877][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.648900][ T1238] do_raw_spin_lock+0x28b/0x2f0 [ 5.648920][ T1238] ? rcu_is_watching+0x15/0xb0 [ 5.648937][ T1238] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 5.648960][ T1238] ? rcu_is_watching+0x15/0xb0 [ 5.648977][ T1238] _raw_spin_lock_irqsave+0x4c/0x60 [ 5.649001][ T1238] rt_mutex_slowunlock+0xbf/0xa20 [ 5.649024][ T1238] ? __pfx_rt_mutex_slowunlock+0x10/0x10 [ 5.649044][ T1238] ? __rcu_read_unlock+0x83/0xe0 [ 5.649069][ T1238] ? rt_spin_unlock+0x160/0x200 [ 5.649089][ T1238] d_alloc_parallel+0x10c0/0x16c0 [ 5.649116][ T1238] ? d_alloc_parallel+0x3cf/0x16c0 [ 5.649141][ T1238] ? __pfx_d_alloc_parallel+0x10/0x10 [ 5.649165][ T1238] ? down_read+0x156/0x200 [ 5.649189][ T1238] ? __pfx_down_read+0x10/0x10 [ 5.649214][ T1238] __lookup_slow+0x82/0x2f0 [ 5.649235][ T1238] lookup_slow+0x53/0x70 [ 5.649254][ T1238] link_path_walk+0xd2a/0x1910 [ 5.649281][ T1238] path_openat+0x23c/0x3850 [ 5.649303][ T1238] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 5.649334][ T1238] ? arch_stack_walk+0x11b/0x150 [ 5.649360][ T1238] ? ret_from_fork_asm+0x1a/0x30 [ 5.649391][ T1238] do_file_open+0x23e/0x4a0 [ 5.649412][ T1238] ? kasan_save_track+0x3e/0x80 [ 5.649429][ T1238] ? __kasan_slab_alloc+0x6c/0x80 [ 5.649447][ T1238] ? kmem_cache_alloc_noprof+0x348/0x6b0 [ 5.649467][ T1238] ? __pfx_do_file_open+0x10/0x10 [ 5.649500][ T1238] ? do_open_execat+0xad/0x590 [ 5.649522][ T1238] do_open_execat+0x12b/0x590 [ 5.649542][ T1238] ? rcu_is_watching+0x15/0xb0 [ 5.649559][ T1238] ? __pfx_do_open_execat+0x10/0x10 [ 5.649580][ T1238] ? kmem_cache_alloc_noprof+0x3b0/0x6b0 [ 5.649597][ T1238] ? do_getname_kernel+0x54/0x230 [ 5.649614][ T1238] ? do_getname_kernel+0x97/0x230 [ 5.649634][ T1238] alloc_bprm+0x24/0x640 [ 5.649656][ T1238] kernel_execve+0x85/0x9c0 [ 5.649681][ T1238] call_usermodehelper_exec_async+0x212/0x360 [ 5.649707][ T1238] ? __pfx_call_usermodehelper_exec_async+0x10/0x10 [ 5.649735][ T1238] ret_from_fork+0x514/0xb70 [ 5.649757][ T1238] ? __pfx_ret_from_fork+0x10/0x10 [ 5.649778][ T1238] ? __switch_to+0xc89/0x1420 [ 5.649797][ T1238] ? __pfx_call_usermodehelper_exec_async+0x10/0x10 [ 5.649823][ T1238] ret_from_fork_asm+0x1a/0x30 [ 5.649851][ T1238] [ 5.649858][ T1238] [ 5.649867][ T1238] Allocated by task 1235: [ 5.649875][ T1238] kasan_save_track+0x3e/0x80 [ 5.649893][ T1238] __kasan_slab_alloc+0x6c/0x80 [ 5.649909][ T1238] kmem_cache_alloc_lru_noprof+0x347/0x6a0 [ 5.649926][ T1238] __d_alloc+0x37/0x6f0 [ 5.649943][ T1238] d_alloc_parallel+0xde/0x16c0 [ 5.649963][ T1238] __lookup_slow+0x82/0x2f0 [ 5.649980][ T1238] lookup_slow+0x53/0x70 [ 5.649998][ T1238] link_path_walk+0xd2a/0x1910 [ 5.650015][ T1238] path_openat+0x23c/0x3850 [ 5.650033][ T1238] do_file_open+0x23e/0x4a0 [ 5.650052][ T1238] do_open_execat+0x12b/0x590 [ 5.650070][ T1238] alloc_bprm+0x24/0x640 [ 5.650089][ T1238] kernel_execve+0x85/0x9c0 [ 5.650108][ T1238] call_usermodehelper_exec_async+0x212/0x360 [ 5.650131][ T1238] ret_from_fork+0x514/0xb70 [ 5.650149][ T1238] ret_from_fork_asm+0x1a/0x30 [ 5.650171][ T1238] [ 5.650175][ T1238] Freed by task 21: [ 5.650182][ T1238] kasan_save_track+0x3e/0x80 [ 5.650198][ T1238] kasan_save_free_info+0x40/0x50 [ 5.650220][ T1238] __kasan_slab_free+0x5c/0x80 [ 5.650236][ T1238] kmem_cache_free+0x187/0x6c0 [ 5.650254][ T1238] rcu_cpu_kthread+0x950/0x1480 [ 5.650277][ T1238] smpboot_thread_fn+0x57c/0xa80 [ 5.650293][ T1238] kthread+0x388/0x470 [ 5.650322][ T1238] ret_from_fork+0x514/0xb70 [ 5.650340][ T1238] ret_from_fork_asm+0x1a/0x30 [ 5.650361][ T1238] [ 5.650365][ T1238] Last potentially related work creation: [ 5.650370][ T1238] kasan_save_stack+0x3e/0x60 [ 5.650386][ T1238] kasan_record_aux_stack+0xbd/0xd0 [ 5.650409][ T1238] call_rcu+0xee/0x8b0 [ 5.650423][ T1238] dentry_kill+0x4d3/0x880 [ 5.650444][ T1238] finish_dput+0x1a/0x260 [ 5.650460][ T1238] step_into_slowpath+0x4cc/0x820 [ 5.650478][ T1238] link_path_walk+0xd5e/0x1910 [ 5.650495][ T1238] path_openat+0x23c/0x3850 [ 5.650514][ T1238] do_file_open+0x23e/0x4a0 [ 5.650534][ T1238] do_open_execat+0x12b/0x590 [ 5.650551][ T1238] alloc_bprm+0x24/0x640 [ 5.650570][ T1238] kernel_execve+0x85/0x9c0 [ 5.650588][ T1238] call_usermodehelper_exec_async+0x212/0x360 [ 5.650613][ T1238] ret_from_fork+0x514/0xb70 [ 5.650631][ T1238] ret_from_fork_asm+0x1a/0x30 [ 5.650652][ T1238] [ 5.650655][ T1238] The buggy address belongs to the object at ffff8880273f9d38 [ 5.650655][ T1238] which belongs to the cache dentry of size 376 [ 5.650670][ T1238] The buggy address is located 188 bytes inside of [ 5.650670][ T1238] freed 376-byte region [ffff8880273f9d38, ffff8880273f9eb0) [ 5.650688][ T1238] [ 5.650692][ T1238] The buggy address belongs to the physical page: [ 5.650713][ T1238] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x273f8 [ 5.650736][ T1238] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 5.650750][ T1238] flags: 0x80000000000040(head|node=0|zone=1) [ 5.650767][ T1238] page_type: f5(slab) [ 5.650783][ T1238] raw: 0080000000000040 ffff88801bacf500 dead000000000100 dead000000000122 [ 5.650798][ T1238] raw: 0000000000000000 0000000800120012 00000000f5000000 0000000000000000 [ 5.650813][ T1238] head: 0080000000000040 ffff88801bacf500 dead000000000100 dead000000000122 [ 5.650828][ T1238] head: 0000000000000000 0000000800120012 00000000f5000000 0000000000000000 [ 5.650842][ T1238] head: 0080000000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff [ 5.650855][ T1238] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000002 [ 5.650864][ T1238] page dumped because: kasan: bad access detected [ 5.650875][ T1238] page_owner tracks the page as allocated [ 5.650882][ T1238] page last allocated via order 1, migratetype Reclaimable, gfp_mask 0xd20d0(__GFP_RECLAIMABLE|__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1169, tgid 1169 (kworker/u8:3), ts 5432991826, free_ts 0 [ 5.650916][ T1238] post_alloc_hook+0x1f9/0x250 [ 5.650933][ T1238] get_page_from_freelist+0x2639/0x26b0 [ 5.650953][ T1238] __alloc_frozen_pages_noprof+0x18d/0x380 [ 5.650973][ T1238] allocate_slab+0x79/0x5e0 [ 5.650994][ T1238] refill_objects+0x2d8/0x350 [ 5.651016][ T1238] __pcs_replace_empty_main+0x330/0x690 [ 5.651038][ T1238] kmem_cache_alloc_lru_noprof+0x45e/0x6a0 [ 5.651054][ T1238] __d_alloc+0x37/0x6f0 [ 5.651072][ T1238] d_alloc_parallel+0xde/0x16c0 [ 5.651092][ T1238] __lookup_slow+0x82/0x2f0 [ 5.651109][ T1238] lookup_slow+0x53/0x70 [ 5.651125][ T1238] link_path_walk+0xd2a/0x1910 [ 5.651142][ T1238] path_openat+0x23c/0x3850 [ 5.651161][ T1238] do_file_open+0x23e/0x4a0 [ 5.651181][ T1238] do_open_execat+0x12b/0x590 [ 5.651199][ T1238] alloc_bprm+0x24/0x640 [ 5.651218][ T1238] page_owner free stack trace missing [ 5.651224][ T1238] [ 5.651229][ T1238] Memory state around the buggy address: [ 5.651238][ T1238] ffff8880273f9c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc [ 5.651248][ T1238] ffff8880273f9d00: fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb [ 5.651259][ T1238] >ffff8880273f9d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 5.651267][ T1238] ^ [ 5.651277][ T1238] ffff8880273f9e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 5.651288][ T1238] ffff8880273f9e80: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc [ 5.651296][ T1238] ================================================================== [ 5.651315][ T1238] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 5.651332][ T1238] CPU: 0 UID: 0 PID: 1238 Comm: kworker/u8:6 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 5.651351][ T1238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 5.651360][ T1238] Call Trace: [ 5.651367][ T1238] [ 5.651374][ T1238] vpanic+0x56c/0xa60 [ 5.651399][ T1238] ? __pfx_vpanic+0x10/0x10 [ 5.651425][ T1238] panic+0xc5/0xd0 [ 5.651447][ T1238] ? __pfx_panic+0x10/0x10 [ 5.651471][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.651493][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.651514][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.651532][ T1238] check_panic_on_warn+0x89/0xb0 [ 5.651554][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.651574][ T1238] end_report+0x73/0x170 [ 5.651594][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.651613][ T1238] kasan_report+0x128/0x150 [ 5.651635][ T1238] ? do_raw_spin_lock+0x28b/0x2f0 [ 5.651657][ T1238] do_raw_spin_lock+0x28b/0x2f0 [ 5.651676][ T1238] ? rcu_is_watching+0x15/0xb0 [ 5.651693][ T1238] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 5.651715][ T1238] ? rcu_is_watching+0x15/0xb0 [ 5.651733][ T1238] _raw_spin_lock_irqsave+0x4c/0x60 [ 5.651756][ T1238] rt_mutex_slowunlock+0xbf/0xa20 [ 5.651777][ T1238] ? __pfx_rt_mutex_slowunlock+0x10/0x10 [ 5.651798][ T1238] ? __rcu_read_unlock+0x83/0xe0 [ 5.651820][ T1238] ? rt_spin_unlock+0x160/0x200 [ 5.651840][ T1238] d_alloc_parallel+0x10c0/0x16c0 [ 5.651866][ T1238] ? d_alloc_parallel+0x3cf/0x16c0 [ 5.651891][ T1238] ? __pfx_d_alloc_parallel+0x10/0x10 [ 5.651915][ T1238] ? down_read+0x156/0x200 [ 5.651939][ T1238] ? __pfx_down_read+0x10/0x10 [ 5.651963][ T1238] __lookup_slow+0x82/0x2f0 [ 5.651984][ T1238] lookup_slow+0x53/0x70 [ 5.652004][ T1238] link_path_walk+0xd2a/0x1910 [ 5.652030][ T1238] path_openat+0x23c/0x3850 [ 5.652053][ T1238] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 5.652075][ T1238] ? arch_stack_walk+0x11b/0x150 [ 5.652101][ T1238] ? ret_from_fork_asm+0x1a/0x30 [ 5.652136][ T1238] do_file_open+0x23e/0x4a0 [ 5.652157][ T1238] ? kasan_save_track+0x3e/0x80 [ 5.652174][ T1238] ? __kasan_slab_alloc+0x6c/0x80 [ 5.652192][ T1238] ? kmem_cache_alloc_noprof+0x348/0x6b0 [ 5.652211][ T1238] ? __pfx_do_file_open+0x10/0x10 [ 5.652244][ T1238] ? do_open_execat+0xad/0x590 [ 5.652265][ T1238] do_open_execat+0x12b/0x590 [ 5.652284][ T1238] ? rcu_is_watching+0x15/0xb0 [ 5.652301][ T1238] ? __pfx_do_open_execat+0x10/0x10 [ 5.652327][ T1238] ? kmem_cache_alloc_noprof+0x3b0/0x6b0 [ 5.652345][ T1238] ? do_getname_kernel+0x54/0x230 [ 5.652362][ T1238] ? do_getname_kernel+0x97/0x230 [ 5.652381][ T1238] alloc_bprm+0x24/0x640 [ 5.652403][ T1238] kernel_execve+0x85/0x9c0 [ 5.652428][ T1238] call_usermodehelper_exec_async+0x212/0x360 [ 5.652454][ T1238] ? __pfx_call_usermodehelper_exec_async+0x10/0x10 [ 5.652480][ T1238] ret_from_fork+0x514/0xb70 [ 5.652501][ T1238] ? __pfx_ret_from_fork+0x10/0x10 [ 5.652523][ T1238] ? __switch_to+0xc89/0x1420 [ 5.652542][ T1238] ? __pfx_call_usermodehelper_exec_async+0x10/0x10 [ 5.652568][ T1238] ret_from_fork_asm+0x1a/0x30 [ 5.652597][ T1238] [ 5.652858][ T1238] Kernel Offset: disabled