possible deadlock in input_open_device
pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
vgaarb: loaded
clocksource: Switched to clocksource kvm-clock
VFS: Disk quotas dquot_6.6.0
VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
pnp: PnP ACPI init
pnp: PnP ACPI: found 7 devices
clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
NET: Registered PF_INET protocol family
IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear)
tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear)
Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
TCP bind hash table entries: 65536 (order: 11, 9437184 bytes, vmalloc hugepage)
TCP: Hash tables configured (established 65536 bind 65536)
UDP hash table entries: 4096 (order: 8, 1048576 bytes, linear)
UDP-Lite hash table entries: 4096 (order: 8, 1048576 bytes, linear)
NET: Registered PF_UNIX/PF_LOCAL protocol family
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp-with-tls transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window]
pci 0000:00:00.0: Limiting direct PCI/PCI transfers
PCI: CLS 0 bytes, default 64
PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB)
RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns
clocksource: Switched to clocksource tsc
Initialise system trusted keyrings
workingset: timestamp_bits=40 max_order=21 bucket_order=0
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
9p: Installing v9fs 9p2000 file system support
Key type asymmetric registered
Asymmetric key parser 'x509' registered
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
io scheduler mq-deadline registered
io scheduler kyber registered
usbcore: registered new interface driver udlfb
usbcore: registered new interface driver smscufx
input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
============================================
WARNING: possible recursive locking detected
6.14.0-rc3-syzkaller-00037-gc749f058b437-dirty #0 Not tainted
--------------------------------------------
swapper/0/1 is trying to acquire lock:
ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: class_mutex_intr_constructor include/linux/mutex.h:203 [inline]
ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: input_open_device+0x47/0x370 drivers/input/input.c:582
but task is already holding lock:
ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: class_mutex_intr_constructor include/linux/mutex.h:203 [inline]
ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: input_register_device+0x98a/0x1130 drivers/input/input.c:2408
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(input_mutex);
lock(input_mutex);
*** DEADLOCK ***
May be due to missing lock nesting notation
2 locks held by swapper/0/1:
#0: ffff888106ab3348 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
#0: ffff888106ab3348 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#0: ffff888106ab3348 (&dev->mutex){....}-{4:4}, at: __driver_attach+0x278/0x580 drivers/base/dd.c:1215
#1: ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: class_mutex_intr_constructor include/linux/mutex.h:203 [inline]
#1: ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: input_register_device+0x98a/0x1130 drivers/input/input.c:2408
stack backtrace:
CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-rc3-syzkaller-00037-gc749f058b437-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_deadlock_bug+0x2e3/0x410 kernel/locking/lockdep.c:3039
check_deadlock kernel/locking/lockdep.c:3091 [inline]
validate_chain kernel/locking/lockdep.c:3893 [inline]
__lock_acquire+0x2117/0x3c40 kernel/locking/lockdep.c:5228
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19b/0xb10 kernel/locking/mutex.c:730
class_mutex_intr_constructor include/linux/mutex.h:203 [inline]
input_open_device+0x47/0x370 drivers/input/input.c:582
kbd_connect+0x103/0x160 drivers/tty/vt/keyboard.c:1591
input_attach_handler.isra.0+0x181/0x260 drivers/input/input.c:993
input_register_device+0xa84/0x1130 drivers/input/input.c:2412
acpi_button_add+0x57a/0xb70 drivers/acpi/button.c:615
acpi_device_probe+0xc6/0x330 drivers/acpi/bus.c:1076
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__driver_attach+0x283/0x580 drivers/base/dd.c:1216
bus_for_each_dev+0x13c/0x1d0 drivers/base/bus.c:370
bus_add_driver+0x2e9/0x690 drivers/base/bus.c:678
driver_register+0x15c/0x4b0 drivers/base/driver.c:249
__acpi_bus_register_driver+0xdf/0x130 drivers/acpi/bus.c:1027
acpi_button_register_driver drivers/acpi/button.c:745 [inline]
acpi_button_driver_init+0x82/0x110 drivers/acpi/button.c:754
do_one_initcall+0x128/0x700 init/main.c:1257
do_initcall_level init/main.c:1319 [inline]
do_initcalls init/main.c:1335 [inline]
do_basic_setup init/main.c:1354 [inline]
kernel_init_freeable+0x5c7/0x900 init/main.c:1568
kernel_init+0x1c/0x2b0 init/main.c:1457
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
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@10.128.1.152" "pwd"]: exit status 255
ssh: connect to host 10.128.1.152 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' (RSA) to the list of known hosts.
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 4bd254d1-c141-c5f2-a362-65c4c415fdbf
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 0x000f27a0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Sending Seabios boot VM event.
Booting from Hard Disk 0...
[ 0.000000][ T0] Linux version 6.14.0-rc3-syzkaller-00037-gc749f058b437-dirty (syzkaller@syzkaller) (gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #0 SMP PREEMPT_DYNAMIC now
[ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0
[ 0.000000][ T0] KERNEL supported cpus:
[ 0.000000][ T0] Intel GenuineIntel
[ 0.000000][ T0] AMD AuthenticAMD
[ 0.000000][ T0] BIOS-provided physical RAM map:
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable
[ 0.000000][ T0] printk: legacy bootconsole [earlyser0] enabled
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] ** **
[ serialport: Connected to syzkaller.us-central1-f.ci2-upstream-usb-test-job-parallel-1 port 1 (session ID: fd08bd71d0fe83cc6324080b5755802ef480f638afa586e84a558b78699230a2, active connections: 1).
0.000000][ T0] ** This system shows unhashed kernel memory addresses **
[ 0.000000][ T0] ** via the console, logs, and other interfaces. This **
[ 0.000000][ T0] ** might reduce the security of your system. **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** If you see this message and you are not debugging **
[ 0.000000][ T0] ** the kernel, report this immediately to your system **
[ 0.000000][ T0] ** administrator! **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] Malformed early option 'vsyscall'
[ 0.000000][ T0] Malformed early option 'numa'
[ 0.000000][ T0] nopcid: PCID feature disabled
[ 0.000000][ T0] NX (Execute Disable) protection: active
[ 0.000000][ T0] APIC: Static calls initialized
[ 0.000000][ T0] SMBIOS 2.4 present.
[ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 0.000000][ T0] DMI: Memory slots populated: 1/1
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000006][ T0] kvm-clock: using sched offset of 3040305724 cycles
[ 0.001956][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.007621][ T0] tsc: Detected 2199.998 MHz processor
[ 0.018332][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000
[ 0.020021][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs
[ 0.022884][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.025023][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000
[ 0.033404][ T0] found SMP MP-table at [mem 0x000f2a60-0x000f2a6f]
[ 0.034504][ T0] Using GB pages for direct mapping
[ 0.040659][ T0] ACPI: Early table checksum verification disabled
[ 0.042869][ T0] ACPI: RSDP 0x00000000000F27E0 000014 (v00 Google)
[ 0.044240][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001)
[ 0.047112][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001)
[ 0.050622][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001)
[ 0.053957][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.055612][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.057094][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001)
[ 0.061054][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001)
[ 0.064709][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001)
[ 0.066981][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001)
[ 0.070162][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423]
[ 0.073364][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323]
[ 0.075970][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.078011][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.080037][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27]
[ 0.082151][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25]
[ 0.085258][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf]
[ 0.088164][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57]
[ 0.091070][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff]
[ 0.093749][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff]
[ 0.094900][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff]
[ 0.096138][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff]
[ 0.097975][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff]
[ 0.100252][ T0] NODE_DATA(0) allocated [mem 0x23fff9c80-0x23fffdc7f]
[ 0.140102][ T0] Zone ranges:
[ 0.140600][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.141930][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.143211][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff]
[ 0.144468][ T0] Movable zone start for each node
[ 0.145353][ T0] Early memory node ranges
[ 0.145958][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.147119][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff]
[ 0.148424][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff]
[ 0.149539][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff]
[ 0.150793][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.152304][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.282719][ T0] On node 0, zone Normal: 3 pages in unavailable ranges
[ 0.602985][ T0] kasan: KernelAddressSanitizer initialized
[ 0.604873][ T0] ACPI: PM-Timer IO Port: 0xb008
[ 0.605680][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.606858][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.609578][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.611883][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.613631][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.616110][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.618168][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 0.620136][ T0] CPU topo: Max. logical packages: 1
[ 0.621588][ T0] CPU topo: Max. logical dies: 1
[ 0.622590][ T0] CPU topo: Max. dies per package: 1
[ 0.624214][ T0] CPU topo: Max. threads per core: 2
[ 0.625521][ T0] CPU topo: Num. cores per package: 1
[ 0.627006][ T0] CPU topo: Num. threads per package: 2
[ 0.629144][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs
[ 0.631249][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.633129][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.634389][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.635618][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.637150][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff]
[ 0.638685][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff]
[ 0.640391][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff]
[ 0.642153][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices
[ 0.643086][ T0] Booting paravirtualized kernel on KVM
[ 0.644460][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.692098][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1
[ 0.694736][ T0] percpu: Embedded 72 pages/cpu s257040 r8192 d29680 u1048576
[ 0.696062][ T0] kvm-guest: PV spinlocks enabled
[ 0.696848][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.698142][ 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 panic_on_warn
[ 0.702681][ T0] Unknown kernel command line parameters "ima_policy=tcb spec_store_bypass_disable=prctl nbds_max=32 BOOT_IMAGE=/boot/bzImage", will be passed to user space.
[ 0.731202][ T0] random: crng init done
[ 0.732331][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
[ 0.738435][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
[ 0.742743][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[ 0.745423][ T0] Fallback order for Node 0: 0
[ 0.745466][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2097051
[ 0.749579][ T0] Policy zone: Normal
[ 0.750559][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[ 0.753306][ T0] stackdepot: allocating hash table via alloc_large_system_hash
[ 0.755874][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear)
[ 0.763720][ T0] software IO TLB: area num 2.
[ 1.864849][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 1.982601][ T0] allocated 167772160 bytes of page_ext
[ 1.984620][ T0] Node 0, zone DMA: page owner found early allocated 0 pages
[ 1.991295][ T0] Node 0, zone DMA32: page owner found early allocated 0 pages
[ 2.032265][ T0] Node 0, zone Normal: page owner found early allocated 41062 pages
[ 2.034545][ T0] Kernel/User page tables isolation: enabled
[ 2.042676][ T0] Dynamic Preempt: voluntary
[ 2.045380][ T0] Running RCU self tests
[ 2.046743][ T0] Running RCU synchronous self tests
[ 2.048272][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 2.049952][ T0] rcu: RCU lockdep checking is enabled.
[ 2.050998][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 2.052396][ T0] rcu: RCU callback double-/use-after-free debug is enabled.
[ 2.053714][ T0] rcu: RCU debug extended QS entry/exit.
[ 2.054870][ T0] All grace periods are expedited (rcu_expedited).
[ 2.056124][ T0] Trampoline variant of Tasks RCU enabled.
[ 2.057033][ T0] Tracing variant of Tasks RCU enabled.
[ 2.057931][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 2.061379][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 2.063453][ T0] Running RCU synchronous self tests
[ 2.066063][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
[ 2.068023][ T0] RCU Tasks Trace: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
[ 2.148807][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16
[ 2.151075][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 2.153511][ T0] Console: colour VGA+ 80x25
[ 2.154361][ T0] printk: legacy console [ttyS0] enabled
[ 2.154361][ T0] printk: legacy console [ttyS0] enabled
[ 2.156205][ T0] printk: legacy bootconsole [earlyser0] disabled
[ 2.156205][ T0] printk: legacy bootconsole [earlyser0] disabled
[ 2.158392][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 2.159965][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 2.160902][ T0] ... MAX_LOCK_DEPTH: 48
[ 2.161856][ T0] ... MAX_LOCKDEP_KEYS: 8192
[ 2.162723][ T0] ... CLASSHASH_SIZE: 4096
[ 2.163576][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576
[ 2.165122][ T0] ... MAX_LOCKDEP_CHAINS: 1048576
[ 2.166061][ T0] ... CHAINHASH_SIZE: 524288
[ 2.167073][ T0] memory used by lock dependency info: 106625 kB
[ 2.168285][ T0] memory used for stack traces: 8320 kB
[ 2.169442][ T0] per task-struct memory footprint: 1920 bytes
[ 2.170863][ T0] ACPI: Core revision 20240827
[ 2.172303][ T0] APIC: Switch to symmetric I/O mode setup
[ 2.179474][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1
[ 2.181027][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns
[ 2.183324][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980)
[ 2.186234][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8
[ 2.187421][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4
[ 2.188611][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[ 2.190126][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit
[ 2.191875][ T0] Spectre V2 : Mitigation: IBRS
[ 2.193371][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[ 2.194866][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT
[ 2.195966][ T0] RETBleed: Mitigation: IBRS
[ 2.196729][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
[ 2.198427][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl
[ 2.200003][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl
[ 2.201758][ T0] MDS: Mitigation: Clear CPU buffers
[ 2.203308][ T0] TAA: Mitigation: Clear CPU buffers
[ 2.204459][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode
[ 2.206324][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 2.208362][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 2.211187][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 2.212662][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 2.213303][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[ 2.611710][ T0] Freeing SMP alternatives memory: 64K
[ 2.613311][ T0] pid_max: default: 32768 minimum: 301
[ 2.615362][ T0] LSM: initializing lsm=capability,selinux
[ 2.617255][ T0] SELinux: Initializing.
[ 2.621396][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 2.623381][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 2.629748][ T0] Running RCU synchronous self tests
[ 2.630756][ T0] Running RCU synchronous self tests
[ 2.754043][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0)
[ 2.760449][ T1] Running RCU Tasks wait API self tests
[ 2.863549][ T1] Running RCU Tasks Trace wait API self tests
[ 2.864988][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only.
[ 2.867069][ T1] signal: max sigframe size: 1776
[ 2.868652][ T1] rcu: Hierarchical SRCU implementation.
[ 2.869650][ T1] rcu: Max phase no-delay instances is 1000.
[ 2.873481][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level
[ 2.879627][ T1] NMI watchdog: Perf NMI watchdog permanently disabled
[ 2.881969][ T1] smp: Bringing up secondary CPUs ...
[ 2.885286][ T1] smpboot: x86: Booting SMP configuration:
[ 2.886686][ T1] .... node #0, CPUs: #1
[ 2.886973][ T14] Callback from call_rcu_tasks_trace() invoked.
[ 2.890661][ 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.
[ 2.893332][ 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.
[ 2.898289][ 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.
[ 2.903577][ T1] smp: Brought up 1 node, 2 CPUs
[ 2.905058][ T1] smpboot: Total of 2 processors activated (8799.99 BogoMIPS)
[ 2.908226][ T1] Memory: 6601216K/8388204K available (99968K kernel code, 26080K rwdata, 24976K rodata, 16692K init, 118600K bss, 1617048K reserved, 0K cma-reserved)
[ 2.918090][ T1] devtmpfs: initialized
[ 2.955349][ T1] Running RCU synchronous self tests
[ 2.957668][ T1] Running RCU synchronous self tests
[ 2.958855][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 2.958855][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear)
[ 2.965450][ T1] PM: RTC time: 09:41:45, date: 2025-02-23
[ 2.972248][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[ 2.981797][ T1] audit: initializing netlink subsys (disabled)
[ 2.983629][ T29] audit: type=2000 audit(1740303705.854:1): state=initialized audit_enabled=0 res=1
[ 2.996571][ T1] thermal_sys: Registered thermal governor 'step_wise'
[ 2.996591][ T1] thermal_sys: Registered thermal governor 'user_space'
[ 2.998802][ T1] cpuidle: using governor menu
[ 3.010457][ T1] PCI: Using configuration type 1 for base access
[ 3.019732][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
[ 3.019732][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page
[ 3.025825][ T1] ACPI: Added _OSI(Module Device)
[ 3.027676][ T1] ACPI: Added _OSI(Processor Device)
[ 3.029470][ T1] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 3.031303][ T1] ACPI: Added _OSI(Processor Aggregator Device)
[ 3.094481][ T13] Callback from call_rcu_tasks() invoked.
[ 3.151105][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded
[ 3.225826][ T1] ACPI: Interpreter enabled
[ 3.228066][ T1] ACPI: PM: (supports S0 S3 S4 S5)
[ 3.230198][ T1] ACPI: Using IOAPIC for interrupt routing
[ 3.232656][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 3.243324][ T1] PCI: Ignoring E820 reservations for host bridge windows
[ 3.249794][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F
[ 3.428290][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 3.431003][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3]
[ 3.433320][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI]
[ 3.437867][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge
[ 3.458760][ T1] PCI host bridge to bus 0000:00
[ 3.460846][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 3.463325][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 3.465986][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 3.469157][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window]
[ 3.472205][ T1] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 3.473782][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint
[ 3.484482][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint
[ 3.498697][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint
[ 3.509581][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI
[ 3.517550][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint
[ 3.535057][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f]
[ 3.537097][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f]
[ 3.544872][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint
[ 3.561393][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f]
[ 3.563343][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f]
[ 3.570338][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint
[ 3.585610][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff]
[ 3.588960][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[ 3.597791][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint
[ 3.611209][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f]
[ 3.617655][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint
[ 3.632109][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf]
[ 3.635623][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f]
[ 3.669511][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10
[ 3.677322][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10
[ 3.687243][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11
[ 3.696353][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11
[ 3.702587][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9
[ 3.721105][ T1] iommu: Default domain type: Translated
[ 3.722975][ T1] iommu: DMA domain TLB invalidation policy: lazy mode
[ 3.727197][ T1] SCSI subsystem initialized
[ 3.745508][ T1] ACPI: bus type USB registered
[ 3.747961][ T1] usbcore: registered new interface driver usbfs
[ 3.750545][ T1] usbcore: registered new interface driver hub
[ 3.752997][ T1] usbcore: registered new device driver usb
[ 3.755635][ T1] mc: Linux media interface: v0.10
[ 3.757897][ T1] videodev: Linux video capture interface: v2.00
[ 3.761166][ T1] pps_core: LinuxPPS API ver. 1 registered
[ 3.763309][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
[ 3.767164][ T1] PTP clock support registered
[ 3.784211][ T1] EDAC MC: Ver: 3.0.0
[ 3.807359][ T1] Advanced Linux Sound Architecture Driver Initialized.
[ 3.817665][ T1] Bluetooth: Core ver 2.22
[ 3.819562][ T1] NET: Registered PF_BLUETOOTH protocol family
[ 3.821239][ T1] Bluetooth: HCI device and connection manager initialized
[ 3.822978][ T1] Bluetooth: HCI socket layer initialized
[ 3.823341][ T1] Bluetooth: L2CAP socket layer initialized
[ 3.824795][ T1] Bluetooth: SCO socket layer initialized
[ 3.826338][ T1] NET: Registered PF_ATMPVC protocol family
[ 3.827830][ T1] NET: Registered PF_ATMSVC protocol family
[ 3.829620][ T1] NetLabel: Initializing
[ 3.830990][ T1] NetLabel: domain hash size = 128
[ 3.833307][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 3.836266][ T1] NetLabel: unlabeled traffic allowed by default
[ 3.843290][ T1] nfc: nfc_init: NFC Core ver 0.1
[ 3.843801][ T1] NET: Registered PF_NFC protocol family
[ 3.846041][ T1] PCI: Using ACPI for IRQ routing
[ 3.849665][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device
[ 3.852568][ T1] pci 0000:00:05.0: vgaarb: bridge control possible
[ 3.853287][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[ 3.863312][ T1] vgaarb: loaded
[ 3.918207][ T1] clocksource: Switched to clocksource kvm-clock
[ 3.932462][ T1] VFS: Disk quotas dquot_6.6.0
[ 3.934309][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 3.941793][ T1] pnp: PnP ACPI init
[ 3.966334][ T1] pnp: PnP ACPI: found 7 devices
[ 4.022143][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 4.026722][ T1] NET: Registered PF_INET protocol family
[ 4.029726][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 4.057661][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear)
[ 4.061945][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 4.065306][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
[ 4.079908][ T1] TCP bind hash table entries: 65536 (order: 11, 9437184 bytes, vmalloc hugepage)
[ 4.095435][ T1] TCP: Hash tables configured (established 65536 bind 65536)
[ 4.099377][ T1] UDP hash table entries: 4096 (order: 8, 1048576 bytes, linear)
[ 4.103973][ T1] UDP-Lite hash table entries: 4096 (order: 8, 1048576 bytes, linear)
[ 4.109358][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family
[ 4.115024][ T1] RPC: Registered named UNIX socket transport module.
[ 4.117573][ T1] RPC: Registered udp transport module.
[ 4.119562][ T1] RPC: Registered tcp transport module.
[ 4.121568][ T1] RPC: Registered tcp-with-tls transport module.
[ 4.123951][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 4.132788][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
[ 4.135225][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
[ 4.137681][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
[ 4.140403][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window]
[ 4.144591][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 4.147415][ T1] PCI: CLS 0 bytes, default 64
[ 4.149454][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[ 4.152150][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB)
[ 4.162476][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
[ 4.165933][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns
[ 4.194080][ T1] clocksource: Switched to clocksource tsc
[ 4.198133][ T47] kworker/u8:0 (47) used greatest stack depth: 27904 bytes left
[ 4.427818][ T57] kworker/u8:0 (57) used greatest stack depth: 27872 bytes left
[ 4.443204][ T62] kworker/u8:0 (62) used greatest stack depth: 26864 bytes left
[ 7.013884][ T1] Initialise system trusted keyrings
[ 7.016895][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0
[ 7.023563][ T1] NFS: Registering the id_resolver key type
[ 7.025658][ T1] Key type id_resolver registered
[ 7.027644][ T1] Key type id_legacy registered
[ 7.030687][ T1] 9p: Installing v9fs 9p2000 file system support
[ 7.074583][ T1] Key type asymmetric registered
[ 7.075691][ T1] Asymmetric key parser 'x509' registered
[ 7.077398][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 7.080437][ T1] io scheduler mq-deadline registered
[ 7.082146][ T1] io scheduler kyber registered
[ 7.088789][ T1] usbcore: registered new interface driver udlfb
[ 7.093006][ T1] usbcore: registered new interface driver smscufx
[ 7.097895][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 7.101275][ T1]
[ 7.101676][ T1] ============================================
[ 7.103134][ T1] WARNING: possible recursive locking detected
[ 7.105147][ T1] 6.14.0-rc3-syzkaller-00037-gc749f058b437-dirty #0 Not tainted
[ 7.108027][ T1] --------------------------------------------
[ 7.109536][ T1] swapper/0/1 is trying to acquire lock:
[ 7.111185][ T1] ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: input_open_device+0x47/0x370
[ 7.111185][ T1]
[ 7.111185][ T1] but task is already holding lock:
[ 7.111185][ T1] ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: input_register_device+0x98a/0x1130
[ 7.111185][ T1]
[ 7.111185][ T1] other info that might help us debug this:
[ 7.111185][ T1] Possible unsafe locking scenario:
[ 7.111185][ T1]
[ 7.111185][ T1] CPU0
[ 7.111185][ T1] ----
[ 7.111185][ T1] lock(input_mutex);
[ 7.111185][ T1] lock(input_mutex);
[ 7.111185][ T1]
[ 7.111185][ T1] *** DEADLOCK ***
[ 7.111185][ T1]
[ 7.111185][ T1] May be due to missing lock nesting notation
[ 7.111185][ T1]
[ 7.111185][ T1] 2 locks held by swapper/0/1:
[ 7.111185][ T1] #0: ffff888106ab3348 (&dev->mutex){....}-{4:4}, at: __driver_attach+0x278/0x580
[ 7.111185][ T1] #1: ffffffff89be7b08 (input_mutex){+.+.}-{4:4}, at: input_register_device+0x98a/0x1130
[ 7.111185][ T1]
[ 7.111185][ T1] stack backtrace:
[ 7.111185][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-rc3-syzkaller-00037-gc749f058b437-dirty #0
[ 7.111185][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 7.111185][ T1] Call Trace:
[ 7.111185][ T1]
[ 7.111185][ T1] dump_stack_lvl+0x116/0x1f0
[ 7.111185][ T1] print_deadlock_bug+0x2e3/0x410
[ 7.111185][ T1] __lock_acquire+0x2117/0x3c40
[ 7.111185][ T1] ? __pfx___lock_acquire+0x10/0x10
[ 7.111185][ T1] lock_acquire.part.0+0x11b/0x380
[ 7.111185][ T1] ? input_open_device+0x47/0x370
[ 7.111185][ T1] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 7.111185][ T1] ? rcu_is_watching+0x12/0xc0
[ 7.111185][ T1] ? trace_lock_acquire+0x14e/0x1f0
[ 7.111185][ T1] ? input_register_handle+0x22f/0x5f0
[ 7.111185][ T1] ? input_open_device+0x47/0x370
[ 7.111185][ T1] ? lock_acquire+0x2f/0xb0
[ 7.111185][ T1] ? input_open_device+0x47/0x370
[ 7.111185][ T1] __mutex_lock+0x19b/0xb10
[ 7.111185][ T1] ? input_open_device+0x47/0x370
[ 7.111185][ T1] ? input_open_device+0x47/0x370
[ 7.111185][ T1] ? __pfx___mutex_lock+0x10/0x10
[ 7.111185][ T1] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 7.111185][ T1] ? __pfx___might_resched+0x10/0x10
[ 7.111185][ T1] ? input_open_device+0x47/0x370
[ 7.111185][ T1] input_open_device+0x47/0x370
[ 7.111185][ T1] kbd_connect+0x103/0x160
[ 7.111185][ T1] input_attach_handler.isra.0+0x181/0x260
[ 7.111185][ T1] input_register_device+0xa84/0x1130
[ 7.111185][ T1] acpi_button_add+0x57a/0xb70
[ 7.111185][ T1] ? __pfx_acpi_button_notify+0x10/0x10
[ 7.111185][ T1] ? __pfx_acpi_button_add+0x10/0x10
[ 7.111185][ T1] acpi_device_probe+0xc6/0x330
[ 7.111185][ T1] ? driver_sysfs_add+0xa5/0x2d0
[ 7.111185][ T1] ? __pfx_acpi_device_probe+0x10/0x10
[ 7.111185][ T1] really_probe+0x23e/0xa90
[ 7.111185][ T1] __driver_probe_device+0x1de/0x440
[ 7.111185][ T1] driver_probe_device+0x4c/0x1b0
[ 7.111185][ T1] __driver_attach+0x283/0x580
[ 7.111185][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.111185][ T1] bus_for_each_dev+0x13c/0x1d0
[ 7.111185][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 7.111185][ T1] bus_add_driver+0x2e9/0x690
[ 7.111185][ T1] driver_register+0x15c/0x4b0
[ 7.111185][ T1] __acpi_bus_register_driver+0xdf/0x130
[ 7.111185][ T1] ? __pfx_acpi_button_driver_init+0x10/0x10
[ 7.111185][ T1] acpi_button_driver_init+0x82/0x110
[ 7.111185][ T1] do_one_initcall+0x128/0x700
[ 7.111185][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 7.111185][ T1] ? __kmalloc_noprof+0x22b/0x4d0
[ 7.111185][ T1] ? __asan_register_globals+0x1c/0x80
[ 7.111185][ T1] kernel_init_freeable+0x5c7/0x900
[ 7.111185][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.111185][ T1] kernel_init+0x1c/0x2b0
[ 7.111185][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.111185][ T1] ret_from_fork+0x45/0x80
[ 7.111185][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.111185][ T1] ret_from_fork_asm+0x1a/0x30
[ 7.111185][ T1]
[ 311.073116][ T11] kworker/u8:0 (11) used greatest stack depth: 25856 bytes left
syzkaller build log:
go env (err=)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.23.6'
GODEBUG=''
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3073680802=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at b257a9b754
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=b257a9b7546c59d44cd69160b5a65a1bf1f050eb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250219-145244'" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"b257a9b7546c59d44cd69160b5a65a1bf1f050eb\"
/usr/bin/ld: /tmp/ccycsKnp.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking