[ 0.000000][ T0] Booting Linux on physical CPU 0x0000000000 [0x000f0510] [ 0.000000][ T0] Linux version 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 (syzkaller@syzkaller) (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #0 SMP PREEMPT now [ 0.000000][ T0] Machine model: linux,dummy-virt [ 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] efi: UEFI not found. [ 0.000000][ T0] NUMA: No NUMA configuration found [ 0.000000][ T0] NUMA: Faking a node at [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000][ T0] NUMA: NODE_DATA [mem 0xbfbff280-0xbfc01fff] [ 0.000000][ T0] Zone ranges: [ 0.000000][ T0] DMA [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000][ T0] DMA32 empty [ 0.000000][ T0] Normal empty [ 0.000000][ T0] Device empty [ 0.000000][ T0] Movable zone start for each node [ 0.000000][ T0] Early memory node ranges [ 0.000000][ T0] node 0: [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000][ T0] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000][ T0] cma: Reserved 32 MiB at 0x00000000bb800000 [ 0.000000][ T0] psci: probing for conduit method from DT. [ 0.000000][ T0] psci: PSCIv0.2 detected in firmware. [ 0.000000][ T0] psci: Using standard PSCI v0.2 function IDs [ 0.000000][ T0] psci: Trusted OS migration not required [ 0.000000][ T0] percpu: Embedded 24 pages/cpu s59080 r8192 d31032 u98304 [ 0.000000][ T0] Detected PIPT I-cache on CPU0 [ 0.000000][ T0] CPU features: detected: Virtualization Host Extensions [ 0.000000][ T0] CPU features: detected: Kernel page table isolation (KPTI) [ 0.000000][ T0] CPU features: detected: Spectre-v2 [ 0.000000][ T0] CPU features: detected: Spectre-v4 [ 0.000000][ T0] CPU features: detected: Address authentication (architected algorithm) [ 0.000000][ T0] CPU features: detected: Branch Target Identification [ 0.000000][ T0] CPU features: detected: Memory Tagging Extension [ 0.000000][ T0] alternatives: patching kernel code [ 0.000000][ T0] kasan: KernelAddressSanitizer initialized [ 0.000000][ T0] Built 1 zonelists, mobility grouping on. Total pages: 516096 [ 0.000000][ T0] Policy zone: DMA [ 0.000000][ T0] Kernel command line: earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/vda console=ttyAMA0 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 root=/dev/vda console=ttyAMA0 watchdog_thresh=165 workqueue.watchdog_thresh=420 dummy_hcd.num=2 [ 0.000000][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) [ 0.000000][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 0.000000][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.000000][ T0] Memory: 1957368K/2097152K available (30976K kernel code, 2658K rwdata, 19120K rodata, 1024K init, 1651K bss, 107016K reserved, 32768K cma-reserved) [ 0.000000][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000][ T0] rcu: Preemptible hierarchical RCU implementation. [ 0.000000][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 0.000000][ T0] All grace periods are expedited (rcu_expedited). [ 0.000000][ T0] Trampoline variant of Tasks RCU enabled. [ 0.000000][ T0] Tracing variant of Tasks RCU enabled. [ 0.000000][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 0.000000][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000][ T0] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000][ T0] GIC: Using split EOI/Deactivate mode [ 0.000000][ T0] GICv2m: range[mem 0x08020000-0x08020fff], SPI[80:143] [ 0.000000][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff00007b600000-0xffff00007b800000 [ 0.000000][ T0] random: crng done (trusting CPU's manufacturer) [ 0.000000][ T0] arch_timer: cp15 timer(s) running at 62.50MHz (phys). [ 0.000000][ T0] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns [ 0.000150][ T0] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns [ 0.015736][ T0] Console: colour dummy device 80x25 [ 0.024856][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) [ 0.026072][ T0] pid_max: default: 32768 minimum: 301 [ 0.035374][ T0] LSM: Security Framework initializing [ 0.039692][ T0] Yama: becoming mindful. [ 0.043977][ T0] TOMOYO Linux initialized [ 0.046363][ T0] Smack: Initializing. [ 0.046591][ T0] Smack: Netfilter enabled. [ 0.046813][ T0] Smack: IPv6 Netfilter enabled. [ 0.051471][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.052687][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.228549][ T1] rcu: Hierarchical SRCU implementation. [ 0.251956][ T1] EFI services will not be available. [ 0.263361][ T1] smp: Bringing up secondary CPUs ... [ 0.294310][ T0] Detected PIPT I-cache on CPU1 [ 0.301739][ T0] CPU1: Booted secondary processor 0x0000000001 [0x000f0510] [ 0.326078][ T1] smp: Brought up 1 node, 2 CPUs [ 0.326638][ T1] SMP: Total of 2 processors activated. [ 0.327066][ T1] CPU features: detected: Privileged Access Never [ 0.327345][ T1] CPU features: detected: LSE atomic instructions [ 0.327588][ T1] CPU features: detected: 32-bit EL0 Support [ 0.327891][ T1] CPU features: detected: Common not Private translations [ 0.328148][ T1] CPU features: detected: Data cache clean to Point of Persistence [ 0.328438][ T1] CPU features: detected: Scalable Vector Extension [ 0.328807][ T1] CPU features: detected: CRC32 instructions [ 0.329057][ T1] CPU features: detected: Speculation barrier (SB) [ 0.329298][ T1] CPU features: detected: Generic authentication (architected algorithm) [ 0.329565][ T1] CPU features: detected: Data cache clean to Point of Deep Persistence [ 0.329841][ T1] CPU features: detected: Random Number Generator [ 0.330175][ T1] CPU features: detected: 32-bit EL1 Support [ 0.330461][ T1] CPU features: detected: RCpc load-acquire (LDAPR) [ 1.104363][ T1] SVE: maximum available vector length 256 bytes per vector [ 1.110169][ T1] SVE: default vector length 64 bytes per vector [ 1.870215][ T1] CPU: All CPU(s) started at EL2 [ 2.076238][ T1] devtmpfs: initialized [ 2.537924][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.539399][ T1] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 2.850677][ T1] DMI not present or invalid. [ 2.898214][ T1] NET: Registered protocol family 16 [ 3.129926][ T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations [ 3.138503][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 3.152647][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 3.156905][ T1] audit: initializing netlink subsys (disabled) [ 3.184321][ T35] audit: type=2000 audit(2.880:1): state=initialized audit_enabled=0 res=1 [ 3.324493][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 3.324777][ T1] thermal_sys: Registered thermal governor 'power_allocator' [ 3.337207][ T1] cpuidle: using governor menu [ 3.338562][ T1] NET: Registered protocol family 42 [ 3.435013][ T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 3.438048][ T1] ASID allocator initialised with 32768 entries [ 3.457924][ T1] Serial: AMBA PL011 UART driver [ 3.973725][ T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 48, base_baud = 0) is a PL011 rev1 [ 4.077398][ T1] printk: console [ttyAMA0] enabled [ 14.027867][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 14.035941][ T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 14.038894][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 14.039779][ T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 14.339852][ T1] cryptd: max_cpu_qlen set to 1000 [ 15.003056][ T1] raid6: neonx8 gen() 199 MB/s [ 15.181322][ T1] raid6: neonx8 xor() 77 MB/s [ 15.356270][ T1] raid6: neonx4 gen() 148 MB/s [ 15.532542][ T1] raid6: neonx4 xor() 64 MB/s [ 15.710033][ T1] raid6: neonx2 gen() 115 MB/s [ 15.886956][ T1] raid6: neonx2 xor() 66 MB/s [ 16.063090][ T1] raid6: neonx1 gen() 108 MB/s [ 16.239337][ T1] raid6: neonx1 xor() 57 MB/s [ 16.416735][ T1] raid6: int64x8 gen() 69 MB/s [ 16.592623][ T1] raid6: int64x8 xor() 42 MB/s [ 16.768636][ T1] raid6: int64x4 gen() 84 MB/s [ 16.943709][ T1] raid6: int64x4 xor() 41 MB/s [ 17.119530][ T1] raid6: int64x2 gen() 70 MB/s [ 17.295368][ T1] raid6: int64x2 xor() 40 MB/s [ 17.471918][ T1] raid6: int64x1 gen() 65 MB/s [ 17.647564][ T1] raid6: int64x1 xor() 37 MB/s [ 17.649209][ T1] raid6: using algorithm neonx8 gen() 199 MB/s [ 17.651229][ T1] raid6: .... xor() 77 MB/s, rmw enabled [ 17.652556][ T1] raid6: using neon recovery algorithm [ 17.692727][ T1] ACPI: Interpreter disabled. [ 17.744586][ T1] iommu: Default domain type: Translated [ 17.765253][ T1] vgaarb: loaded [ 17.848111][ T1] SCSI subsystem initialized [ 17.949532][ T1] usbcore: registered new interface driver usbfs [ 17.955428][ T1] usbcore: registered new interface driver hub [ 17.971714][ T1] usbcore: registered new device driver usb [ 18.028659][ T1] pps_core: LinuxPPS API ver. 1 registered [ 18.029418][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 18.057313][ T1] PTP clock support registered [ 18.069931][ T1] EDAC MC: Ver: 3.0.0 [ 18.222437][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 18.334861][ T1] Bluetooth: Core ver 2.22 [ 18.339847][ T1] NET: Registered protocol family 31 [ 18.342047][ T1] Bluetooth: HCI device and connection manager initialized [ 18.344571][ T1] Bluetooth: HCI socket layer initialized [ 18.347714][ T1] Bluetooth: L2CAP socket layer initialized [ 18.351276][ T1] Bluetooth: SCO socket layer initialized [ 18.355753][ T1] NET: Registered protocol family 8 [ 18.357985][ T1] NET: Registered protocol family 20 [ 18.363854][ T1] NetLabel: Initializing [ 18.364790][ T1] NetLabel: domain hash size = 128 [ 18.370930][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 18.379681][ T1] NetLabel: unlabeled traffic allowed by default [ 18.405155][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 18.416335][ T1] NET: Registered protocol family 39 [ 18.511850][ T1] clocksource: Switched to clocksource arch_sys_counter [ 18.559216][ T1] VFS: Disk quotas dquot_6.6.0 [ 18.564805][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 18.580292][ T1] FS-Cache: Loaded [ 18.617237][ T1] CacheFiles: Loaded [ 18.635383][ T1] TOMOYO: 2.6.0 [ 18.637139][ T1] Mandatory Access Control activated. [ 18.648441][ T1] pnp: PnP ACPI: disabled [ 19.698873][ T1] NET: Registered protocol family 2 [ 19.732182][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear) [ 19.735487][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 19.738747][ T1] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear) [ 19.743329][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 19.757545][ T1] MPTCP token hash table entries: 2048 (order: 3, 49152 bytes, linear) [ 19.760535][ T1] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 19.765887][ T1] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 19.785320][ T1] NET: Registered protocol family 1 [ 19.822012][ T1] RPC: Registered named UNIX socket transport module. [ 19.824425][ T1] RPC: Registered udp transport module. [ 19.825576][ T1] RPC: Registered tcp transport module. [ 19.826319][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 19.883846][ T1] NET: Registered protocol family 44 [ 19.886548][ T1] PCI: CLS 0 bytes, default 64 [ 20.154808][ T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available [ 20.161623][ T1] kvm [1]: IPA Size Limit: 48 bits [ 20.169305][ T1] kvm [1]: vgic interrupt IRQ9 [ 20.202818][ T1] kvm [1]: VHE mode initialized successfully [ 20.919373][ T1] Initialise system trusted keyrings [ 20.937254][ T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0 [ 21.769240][ T1] zbud: loaded [ 21.966557][ T1] DLM installed [ 22.169185][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 22.386814][ T1] NFS: Registering the id_resolver key type [ 22.388959][ T1] Key type id_resolver registered [ 22.389665][ T1] Key type id_legacy registered [ 22.400686][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 22.420528][ T1] fuse: init (API version 7.33) [ 22.521618][ T1] 9p: Installing v9fs 9p2000 file system support [ 22.727677][ T1] NET: Registered protocol family 38 [ 22.738462][ T1] xor: measuring software checksum speed [ 23.009293][ T1] 8regs : 36 MB/sec [ 23.199878][ T1] 32regs : 52 MB/sec [ 23.345626][ T1] arm64_neon : 68 MB/sec [ 23.346508][ T1] xor: using function: arm64_neon (68 MB/sec) [ 23.348527][ T1] async_tx: api initialized (async) [ 23.349387][ T1] Key type asymmetric registered [ 23.350080][ T1] Asymmetric key parser 'x509' registered [ 23.350855][ T1] Asymmetric key parser 'pkcs8' registered [ 23.362276][ T1] Key type pkcs7_test registered [ 23.363044][ T1] Asymmetric key parser 'tpm_parser' registered [ 23.366081][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 23.373457][ T1] io scheduler mq-deadline registered [ 23.374397][ T1] io scheduler kyber registered [ 23.394797][ T1] io scheduler bfq registered [ 23.537583][ T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered [ 23.637520][ T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges: [ 23.640561][ T1] pci-host-generic 4010000000.pcie: IO 0x003eff0000..0x003effffff -> 0x0000000000 [ 23.644465][ T1] pci-host-generic 4010000000.pcie: MEM 0x0010000000..0x003efeffff -> 0x0010000000 [ 23.646071][ T1] pci-host-generic 4010000000.pcie: MEM 0x8000000000..0xffffffffff -> 0x8000000000 [ 23.648431][ T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits [ 23.652525][ T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff] [ 23.668067][ T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00 [ 23.669764][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 23.670941][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 23.673519][ T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff] [ 23.674656][ T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff] [ 23.678362][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 23.710820][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 23.713378][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 23.714817][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 23.732444][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 23.736009][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 23.737036][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 23.738241][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 23.739275][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 23.755397][ T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000 [ 23.756577][ T1] pci 0000:00:03.0: reg 0x10: [io 0x0000-0x007f] [ 23.757558][ T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 23.758668][ T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 23.794153][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref] [ 23.795836][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref] [ 23.798528][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref] [ 23.799865][ T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref] [ 23.801106][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff] [ 23.804992][ T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff] [ 23.807676][ T1] pci 0000:00:03.0: BAR 0: assigned [io 0x1000-0x107f] [ 23.811969][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x1080-0x109f] [ 23.814774][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x10a0-0x10bf] [ 23.856947][ T1] usbcore: registered new interface driver udlfb [ 23.888887][ T1] uvesafb: failed to execute /sbin/v86d [ 23.889654][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 23.890798][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 23.897733][ T1] uvesafb: vbe_init() failed with -22 [ 23.901054][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 23.908283][ T1] IPMI message handler: version 39.2 [ 23.914280][ T1] ipmi device interface [ 23.918871][ T1] ipmi_si: IPMI System Interface driver [ 23.951234][ T1] ipmi_si: Unable to find any System Interface(s) [ 23.984098][ T1] EINJ: ACPI disabled. [ 24.249762][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 24.277432][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 24.298285][ T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003) [ 30.738758][ T1] N_HDLC line discipline registered with maxframe=4096 [ 30.744980][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 31.019000][ T1] Cyclades driver 2.6 [ 31.036463][ T1] Initializing Nozomi driver 2.1d [ 31.066054][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 31.070057][ T1] No rocketport ports found; unloading driver [ 31.334276][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 31.450491][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 31.947116][ T1] Console: switching to colour frame buffer device 128x48 [ 32.088482][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 32.102308][ T1] usbcore: registered new interface driver udl [ 32.403383][ T16] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 32.605492][ C0] ------------[ cut here ]------------ [ 32.606288][ C0] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.608103][ C0] Modules linked in: [ 32.609062][ C0] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 #0 [ 32.610167][ C0] Hardware name: linux,dummy-virt (DT) [ 32.611021][ C0] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.611875][ C0] pc : vkms_vblank_simulate+0x120/0x130 [ 32.612637][ C0] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.613371][ C0] sp : ffff800010003e30 [ 32.613904][ C0] x29: ffff800010003e30 x28: ffff00007fbc2e00 [ 32.614929][ C0] x27: ffff00007fbc2e40 x26: ffff80001096f860 [ 32.615893][ C0] x25: 0000000000000000 x24: 0000000000000001 [ 32.621069][ C0] x23: 0000000000000080 x22: 0000000757902c70 [ 32.623479][ C0] x21: 0000000000fe4c00 x20: f5ff000004e18628 [ 32.625800][ C0] x19: f5ff000004e19498 x18: 00000000fffffffb [ 32.626763][ C0] x17: 000000000000003f x16: 000000000000000a [ 32.627709][ C0] x15: 0000000000000020 x14: 00000000000003c8 [ 32.628682][ C0] x13: 0000000000000000 x12: 0000000000000040 [ 32.637617][ C0] x11: fbff000004000260 x10: fbff000004000262 [ 32.639798][ C0] x9 : ffff8000133333f8 x8 : 00000007575b1010 [ 32.642567][ C0] x7 : 7fffffffffffffff x6 : 00000007575b1010 [ 32.644709][ C0] x5 : 00000007575b1010 x4 : f5ff000004e19498 [ 32.646829][ C0] x3 : 0000000758595c10 x2 : 00000007575b1010 [ 32.648961][ C0] x1 : 0000000758595c10 x0 : 0000000000000002 [ 32.651345][ C0] Call trace: [ 32.652503][ C0] vkms_vblank_simulate+0x120/0x130 [ 32.654333][ C0] __hrtimer_run_queues+0x140/0x1e0 [ 32.655159][ C0] hrtimer_interrupt+0xe8/0x290 [ 32.655822][ C0] arch_timer_handler_phys+0x38/0x50 [ 32.656544][ C0] handle_percpu_devid_irq+0x84/0x150 [ 32.658414][ C0] __handle_domain_irq+0x7c/0xe0 [ 32.660003][ C0] gic_handle_irq+0x50/0xd0 [ 32.660646][ C0] el1_irq+0xb4/0x180 [ 32.662256][ C0] queue_work_on+0x2c/0x80 [ 32.662939][ C0] call_usermodehelper_exec+0x134/0x200 [ 32.664162][ C0] kobject_uevent_env+0x578/0x690 [ 32.665418][ C0] kobject_uevent+0x14/0x20 [ 32.666924][ C0] device_add+0x330/0x7d0 [ 32.668404][ C0] device_create_groups_vargs+0x108/0x174 [ 32.670449][ C0] device_create+0x5c/0x8c [ 32.672633][ C0] bdi_register_va+0x80/0x214 [ 32.674370][ C0] bdi_register+0x58/0x80 [ 32.675999][ C0] __device_add_disk+0x34c/0x4a0 [ 32.677823][ C0] device_add_disk+0x14/0x20 [ 32.679562][ C0] brd_init+0x168/0x214 [ 32.681337][ C0] do_one_initcall+0x50/0x1b0 [ 32.683027][ C0] kernel_init_freeable+0x1d8/0x240 [ 32.684939][ C0] kernel_init+0x14/0x118 [ 32.686547][ C0] ret_from_fork+0x10/0x34 [ 32.688548][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 32.690893][ C0] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 #0 [ 32.694500][ C0] Hardware name: linux,dummy-virt (DT) [ 32.696431][ C0] Call trace: [ 32.697670][ C0] dump_backtrace+0x0/0x1b0 [ 32.699349][ C0] show_stack+0x18/0x70 [ 32.700936][ C0] dump_stack+0xd0/0x12c [ 32.702894][ C0] panic+0x170/0x338 [ 32.704397][ C0] __warn+0xc8/0x150 [ 32.705909][ C0] report_bug+0xf8/0x170 [ 32.707513][ C0] bug_handler+0x20/0x70 [ 32.708966][ C0] brk_handler+0x68/0xd0 [ 32.709498][ C0] do_debug_exception+0x90/0x170 [ 32.710048][ C0] el1_dbg+0x70/0x90 [ 32.710558][ C0] el1_sync_handler+0x9c/0xd0 [ 32.711653][ C0] el1_sync+0x70/0x100 [ 32.712199][ C0] vkms_vblank_simulate+0x120/0x130 [ 32.712824][ C0] __hrtimer_run_queues+0x140/0x1e0 [ 32.713422][ C0] hrtimer_interrupt+0xe8/0x290 [ 32.714018][ C0] arch_timer_handler_phys+0x38/0x50 [ 32.714589][ C0] handle_percpu_devid_irq+0x84/0x150 [ 32.715196][ C0] __handle_domain_irq+0x7c/0xe0 [ 32.716379][ C0] gic_handle_irq+0x50/0xd0 [ 32.717104][ C0] el1_irq+0xb4/0x180 [ 32.717720][ C0] queue_work_on+0x2c/0x80 [ 32.718283][ C0] call_usermodehelper_exec+0x134/0x200 [ 32.718944][ C0] kobject_uevent_env+0x578/0x690 [ 32.719543][ C0] kobject_uevent+0x14/0x20 [ 32.720104][ C0] device_add+0x330/0x7d0 [ 32.720682][ C0] device_create_groups_vargs+0x108/0x174 [ 32.721815][ C0] device_create+0x5c/0x8c [ 32.722379][ C0] bdi_register_va+0x80/0x214 [ 32.722957][ C0] bdi_register+0x58/0x80 [ 32.723524][ C0] __device_add_disk+0x34c/0x4a0 [ 32.724123][ C0] device_add_disk+0x14/0x20 [ 32.724721][ C0] brd_init+0x168/0x214 [ 32.725246][ C0] do_one_initcall+0x50/0x1b0 [ 32.725802][ C0] kernel_init_freeable+0x1d8/0x240 [ 32.726417][ C0] kernel_init+0x14/0x118 [ 32.726957][ C0] ret_from_fork+0x10/0x34 [ 32.728011][ C0] SMP: stopping secondary CPUs [ 32.729024][ C0] Kernel Offset: disabled [ 32.729507][ C0] CPU features: 0x0a7e0952,61e0a830 [ 32.730278][ C0] Memory Limit: none [ 32.731248][ C0] Rebooting in 1 seconds..