[ 0.000000][ T0] Booting Linux on physical CPU 0x0000000000 [0x000f0510] [ 0.000000][ T0] Linux version 5.12.0-rc3-syzkaller-00036-gbf152b0b41dc (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] 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 0xbfbf9280-0xbfbfbfff] [ 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 [ 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: 1969696K/2097152K available (23424K kernel code, 2238K rwdata, 15028K rodata, 960K init, 1443K bss, 94688K 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] 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 0x(____ptrval____)-0x(____ptrval____) [ 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 [ 0.000146][ T0] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns [ 0.015930][ T0] Console: colour dummy device 80x25 [ 0.024848][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) [ 0.026144][ T0] pid_max: default: 32768 minimum: 301 [ 0.035412][ T0] LSM: Security Framework initializing [ 0.039612][ T0] Yama: becoming mindful. [ 0.043684][ T0] TOMOYO Linux initialized [ 0.046048][ T0] Smack: Initializing. [ 0.046242][ T0] Smack: Netfilter enabled. [ 0.046463][ T0] Smack: IPv6 Netfilter enabled. [ 0.050842][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.051483][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.232727][ T1] rcu: Hierarchical SRCU implementation. [ 0.255543][ T1] EFI services will not be available. [ 0.267201][ T1] smp: Bringing up secondary CPUs ... [ 0.299865][ T0] Detected PIPT I-cache on CPU1 [ 0.306611][ T0] CPU1: Booted secondary processor 0x0000000001 [0x000f0510] [ 0.315859][ T1] smp: Brought up 1 node, 2 CPUs [ 0.316459][ T1] SMP: Total of 2 processors activated. [ 0.316858][ T1] CPU features: detected: Privileged Access Never [ 0.317112][ T1] CPU features: detected: LSE atomic instructions [ 0.317338][ T1] CPU features: detected: 32-bit EL0 Support [ 0.317631][ T1] CPU features: detected: Common not Private translations [ 0.317874][ T1] CPU features: detected: Data cache clean to Point of Persistence [ 0.318103][ T1] CPU features: detected: Scalable Vector Extension [ 0.318399][ T1] CPU features: detected: CRC32 instructions [ 0.318642][ T1] CPU features: detected: Speculation barrier (SB) [ 0.318877][ T1] CPU features: detected: Generic authentication (architected algorithm) [ 0.319126][ T1] CPU features: detected: Data cache clean to Point of Deep Persistence [ 0.319360][ T1] CPU features: detected: Random Number Generator [ 0.319653][ T1] CPU features: detected: 32-bit EL1 Support [ 0.319918][ T1] CPU features: detected: RCpc load-acquire (LDAPR) [ 0.879634][ T1] SVE: maximum available vector length 256 bytes per vector [ 0.890403][ T1] SVE: default vector length 64 bytes per vector [ 1.484631][ T1] CPU: All CPU(s) started at EL2 [ 1.667248][ T1] devtmpfs: initialized [ 1.992480][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.994275][ T1] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 2.294970][ T1] DMI not present or invalid. [ 2.339153][ T1] NET: Registered protocol family 16 [ 2.519139][ T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations [ 2.527939][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 2.543218][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 2.547556][ T1] audit: initializing netlink subsys (disabled) [ 2.560199][ T34] audit: type=2000 audit(2.340:1): state=initialized audit_enabled=0 res=1 [ 2.716177][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.716487][ T1] thermal_sys: Registered thermal governor 'power_allocator' [ 2.722199][ T1] cpuidle: using governor menu [ 2.763810][ T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 2.773702][ T1] ASID allocator initialised with 32768 entries [ 2.798558][ T1] Serial: AMBA PL011 UART driver [ 3.345306][ T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 48, base_baud = 0) is a PL011 rev1 [ 3.450906][ T1] printk: console [ttyAMA0] enabled [ 10.189323][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 10.190353][ T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 10.191209][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 10.192032][ T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 10.464071][ T1] cryptd: max_cpu_qlen set to 1000 [ 11.131081][ T1] raid6: neonx8 gen() 127 MB/s [ 11.306984][ T1] raid6: neonx8 xor() 72 MB/s [ 11.483811][ T1] raid6: neonx4 gen() 131 MB/s [ 11.659626][ T1] raid6: neonx4 xor() 70 MB/s [ 11.836994][ T1] raid6: neonx2 gen() 124 MB/s [ 12.012081][ T1] raid6: neonx2 xor() 66 MB/s [ 12.188161][ T1] raid6: neonx1 gen() 106 MB/s [ 12.363824][ T1] raid6: neonx1 xor() 61 MB/s [ 12.540625][ T1] raid6: int64x8 gen() 72 MB/s [ 12.716121][ T1] raid6: int64x8 xor() 41 MB/s [ 12.891815][ T1] raid6: int64x4 gen() 71 MB/s [ 13.068291][ T1] raid6: int64x4 xor() 42 MB/s [ 13.244903][ T1] raid6: int64x2 gen() 70 MB/s [ 13.421399][ T1] raid6: int64x2 xor() 40 MB/s [ 13.598170][ T1] raid6: int64x1 gen() 65 MB/s [ 13.773746][ T1] raid6: int64x1 xor() 38 MB/s [ 13.775399][ T1] raid6: using algorithm neonx4 gen() 131 MB/s [ 13.776138][ T1] raid6: .... xor() 70 MB/s, rmw enabled [ 13.777038][ T1] raid6: using neon recovery algorithm [ 13.794166][ T1] ACPI: Interpreter disabled. [ 13.856138][ T1] iommu: Default domain type: Translated [ 13.872213][ T1] vgaarb: loaded [ 13.936976][ T1] SCSI subsystem initialized [ 14.013840][ T1] usbcore: registered new interface driver usbfs [ 14.024639][ T1] usbcore: registered new interface driver hub [ 14.037383][ T1] usbcore: registered new device driver usb [ 14.074304][ T1] pps_core: LinuxPPS API ver. 1 registered [ 14.076099][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 14.078172][ T1] PTP clock support registered [ 14.104535][ T1] EDAC MC: Ver: 3.0.0 [ 14.273779][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 14.379813][ T1] NetLabel: Initializing [ 14.380446][ T1] NetLabel: domain hash size = 128 [ 14.382127][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 14.390717][ T1] NetLabel: unlabeled traffic allowed by default [ 14.401587][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 14.409178][ T1] NET: Registered protocol family 39 [ 14.445792][ T1] clocksource: Switched to clocksource arch_sys_counter [ 14.491617][ T1] VFS: Disk quotas dquot_6.6.0 [ 14.497292][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 14.511798][ T1] FS-Cache: Loaded [ 14.538098][ T1] CacheFiles: Loaded [ 14.550205][ T1] TOMOYO: 2.6.0 [ 14.550877][ T1] Mandatory Access Control activated. [ 14.564366][ T1] pnp: PnP ACPI: disabled [ 15.519973][ T1] NET: Registered protocol family 2 [ 15.558248][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear) [ 15.561686][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 15.569460][ T1] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear) [ 15.574131][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 15.586060][ T1] MPTCP token hash table entries: 2048 (order: 3, 49152 bytes, linear) [ 15.589012][ T1] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 15.591170][ T1] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 15.609971][ T1] NET: Registered protocol family 1 [ 15.612346][ T1] NET: Registered protocol family 44 [ 15.613291][ T1] PCI: CLS 0 bytes, default 64 [ 15.738626][ T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available [ 15.743766][ T1] kvm [1]: IPA Size Limit: 48 bits [ 15.751524][ T1] kvm [1]: vgic interrupt IRQ9 [ 15.757892][ T1] kvm [1]: VHE mode initialized successfully [ 16.255971][ T1] Initialise system trusted keyrings [ 16.268871][ T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0 [ 17.050902][ T1] zbud: loaded [ 17.216670][ T1] DLM installed [ 17.514758][ T1] fuse: init (API version 7.33) [ 17.761352][ T1] NET: Registered protocol family 38 [ 17.773167][ T1] xor: measuring software checksum speed [ 18.043638][ T1] 8regs : 38 MB/sec [ 18.245638][ T1] 32regs : 49 MB/sec [ 18.380582][ T1] arm64_neon : 75 MB/sec [ 18.381426][ T1] xor: using function: arm64_neon (75 MB/sec) [ 18.384298][ T1] async_tx: api initialized (async) [ 18.385157][ T1] Key type asymmetric registered [ 18.385911][ T1] Asymmetric key parser 'x509' registered [ 18.386654][ T1] Asymmetric key parser 'pkcs8' registered [ 18.387336][ T1] Key type pkcs7_test registered [ 18.387974][ T1] Asymmetric key parser 'tpm_parser' registered [ 18.391052][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 18.400805][ T1] io scheduler mq-deadline registered [ 18.404435][ T1] io scheduler kyber registered [ 18.425695][ T1] io scheduler bfq registered [ 18.558858][ T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered [ 18.649721][ T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges: [ 18.653554][ T1] pci-host-generic 4010000000.pcie: IO 0x003eff0000..0x003effffff -> 0x0000000000 [ 18.657107][ T1] pci-host-generic 4010000000.pcie: MEM 0x0010000000..0x003efeffff -> 0x0010000000 [ 18.660812][ T1] pci-host-generic 4010000000.pcie: MEM 0x8000000000..0xffffffffff -> 0x8000000000 [ 18.674703][ T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits [ 18.678194][ T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff] [ 18.696959][ T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00 [ 18.699620][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 18.703463][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 18.706859][ T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff] [ 18.708407][ T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff] [ 18.715452][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 18.736832][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 18.738358][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 18.739709][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 18.757942][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 18.759173][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 18.760085][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 18.761294][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 18.763330][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 18.779779][ T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000 [ 18.782506][ T1] pci 0000:00:03.0: reg 0x10: [io 0x0000-0x007f] [ 18.788726][ T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 18.790036][ T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 18.826484][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref] [ 18.828187][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref] [ 18.829338][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref] [ 18.830754][ T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref] [ 18.831654][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff] [ 18.833378][ T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff] [ 18.834572][ T1] pci 0000:00:03.0: BAR 0: assigned [io 0x1000-0x107f] [ 18.835699][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x1080-0x109f] [ 18.836731][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x10a0-0x10bf] [ 18.873450][ T1] usbcore: registered new interface driver udlfb [ 18.906872][ T1] uvesafb: failed to execute /sbin/v86d [ 18.907642][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 18.908727][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 18.909892][ T1] uvesafb: vbe_init() failed with -22 [ 18.911702][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 18.923938][ T1] IPMI message handler: version 39.2 [ 18.929830][ T1] ipmi device interface [ 18.945217][ T1] ipmi_si: IPMI System Interface driver [ 18.966678][ T1] ipmi_si: Unable to find any System Interface(s) [ 18.998240][ T1] EINJ: ACPI disabled. [ 19.235416][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 19.261679][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 19.283783][ T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003) [ 25.071543][ T1] N_HDLC line discipline registered with maxframe=4096 [ 25.077401][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 25.318723][ T1] Cyclades driver 2.6 [ 25.338310][ T1] Initializing Nozomi driver 2.1d [ 25.359204][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 25.361674][ T1] No rocketport ports found; unloading driver [ 25.645196][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 25.737814][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 26.257278][ T1] Console: switching to colour frame buffer device 128x48 [ 26.358633][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 26.367819][ T1] usbcore: registered new interface driver udl [ 26.438926][ C1] ------------[ cut here ]------------ [ 26.439846][ C1] WARNING: CPU: 1 PID: 1983 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 26.441978][ C1] Modules linked in: [ 26.443149][ C1] CPU: 1 PID: 1983 Comm: kworker/u4:5 Not tainted 5.12.0-rc3-syzkaller-00036-gbf152b0b41dc #0 [ 26.444748][ C1] Hardware name: linux,dummy-virt (DT) [ 26.445687][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 26.446745][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 26.448673][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 26.449902][ C1] sp : ffff80001000be30 [ 26.450761][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 26.453472][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fe400 [ 26.454795][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 26.455951][ C1] x23: 0000000000000080 x22: 00000005fdfdb2e0 [ 26.457047][ C1] x21: 0000000000fe4c00 x20: faff0000032a4628 [ 26.458133][ C1] x19: faff0000032a5498 x18: 00000000fffffffb [ 26.459700][ C1] x17: 0000000000000001 x16: 0000000000000001 [ 26.460788][ C1] x15: 00006297789f4580 x14: 0000000000000126 [ 26.461987][ C1] x13: 0000000000000001 x12: 000000000000001d [ 26.463046][ C1] x11: 0000000000000003 x10: 0000000000000126 [ 26.464499][ C1] x9 : 0000000008e335da x8 : 00000005fd8ed7b0 [ 26.465150][ C1] x7 : 7fffffffffffffff x6 : 00000005fd8ed7b0 [ 26.466102][ C1] x5 : 00000005fd8ed7b0 x4 : faff0000032a5498 [ 26.467221][ C1] x3 : 00000005fe8d23b0 x2 : 00000005fd8ed7b0 [ 26.468342][ C1] x1 : 00000005fe8d23b0 x0 : 0000000000000002 [ 26.469641][ C1] Call trace: [ 26.470253][ C1] vkms_vblank_simulate+0x120/0x130 [ 26.471086][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 26.471976][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 26.472859][ C1] arch_timer_handler_phys+0x38/0x50 [ 26.473667][ C1] handle_percpu_devid_irq+0x84/0x150 [ 26.474448][ C1] __handle_domain_irq+0x7c/0xe0 [ 26.475193][ C1] gic_handle_irq+0x50/0xd0 [ 26.476031][ C1] el1_irq+0xb4/0x180 [ 26.476746][ C1] kmem_cache_alloc+0x6c/0x33c [ 26.477479][ C1] __alloc_file+0x2c/0xf0 [ 26.478240][ C1] alloc_empty_file+0x60/0x100 [ 26.479000][ C1] path_openat+0x44/0xf10 [ 26.479715][ C1] do_filp_open+0x74/0x124 [ 26.480435][ C1] do_open_execat+0x6c/0x1d0 [ 26.481168][ C1] bprm_execve+0x10c/0x55c [ 26.482041][ C1] kernel_execve+0x124/0x1a0 [ 26.482930][ C1] call_usermodehelper_exec_async+0xcc/0x140 [ 26.483775][ C1] ret_from_fork+0x10/0x34 [ 26.484808][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 26.485809][ C1] CPU: 1 PID: 1983 Comm: kworker/u4:5 Not tainted 5.12.0-rc3-syzkaller-00036-gbf152b0b41dc #0 [ 26.487051][ C1] Hardware name: linux,dummy-virt (DT) [ 26.487855][ C1] Call trace: [ 26.488404][ C1] dump_backtrace+0x0/0x1b0 [ 26.489165][ C1] show_stack+0x18/0x70 [ 26.489918][ C1] dump_stack+0xd0/0x12c [ 26.490673][ C1] panic+0x170/0x338 [ 26.491343][ C1] __warn+0xc8/0x150 [ 26.492182][ C1] report_bug+0xf8/0x170 [ 26.493005][ C1] bug_handler+0x20/0x70 [ 26.493749][ C1] brk_handler+0x68/0xd0 [ 26.494445][ C1] do_debug_exception+0x90/0x170 [ 26.495211][ C1] el1_dbg+0x70/0x90 [ 26.495899][ C1] el1_sync_handler+0x9c/0xd0 [ 26.496655][ C1] el1_sync+0x70/0x100 [ 26.497345][ C1] vkms_vblank_simulate+0x120/0x130 [ 26.498147][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 26.498932][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 26.499716][ C1] arch_timer_handler_phys+0x38/0x50 [ 26.500499][ C1] handle_percpu_devid_irq+0x84/0x150 [ 26.501292][ C1] __handle_domain_irq+0x7c/0xe0 [ 26.502261][ C1] gic_handle_irq+0x50/0xd0 [ 26.502994][ C1] el1_irq+0xb4/0x180 [ 26.503699][ C1] kmem_cache_alloc+0x6c/0x33c [ 26.504435][ C1] __alloc_file+0x2c/0xf0 [ 26.505156][ C1] alloc_empty_file+0x60/0x100 [ 26.505923][ C1] path_openat+0x44/0xf10 [ 26.506656][ C1] do_filp_open+0x74/0x124 [ 26.507371][ C1] do_open_execat+0x6c/0x1d0 [ 26.508114][ C1] bprm_execve+0x10c/0x55c [ 26.508844][ C1] kernel_execve+0x124/0x1a0 [ 26.509583][ C1] call_usermodehelper_exec_async+0xcc/0x140 [ 26.510572][ C1] ret_from_fork+0x10/0x34 [ 26.511999][ C1] SMP: stopping secondary CPUs [ 26.513309][ C1] Kernel Offset: disabled [ 26.514060][ C1] CPU features: 0x0a7e0952,61e0a830 [ 26.515429][ C1] Memory Limit: none [ 26.516624][ C1] Rebooting in 1 seconds..