Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000080000000-0x00000000ffffffff] Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffffff] percpu: Embedded 19 pages/cpu s47048 r8192 d22584 u77824 Kernel command line: 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 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/vda console=ttyAMA0 vmalloc=512M smp.csd_lock_timeout=300000 watchdog_thresh=165 workqueue.watchdog_thresh=420 sysctl.net.core.netdev_unregister_timeout_secs=420 dummy_hcd.num=2 panic_on_warn=1 Unknown kernel command line parameters "earlyprintk=serial page_owner=on", will be passed to user space. Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes, linear) Inode-cache hash table entries: 131072 (order: 7, 524288 bytes, linear) Built 1 zonelists, mobility grouping on. Total pages: 520868 allocated 2097152 bytes of page_ext mem auto-init: stack:off, heap alloc:on, heap free:off software IO TLB: area num 2. software IO TLB: mapped [mem 0x00000000d9a47000-0x00000000dda47000] (64MB) Memory: 1952316K/2097152K available (24576K kernel code, 2364K rwdata, 8404K rodata, 2048K init, 868K bss, 128452K reserved, 16384K cma-reserved, 524288K highmem) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 trace event string verifier disabled rcu: Preemptible hierarchical RCU implementation. rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. rcu: RCU callback double-/use-after-free debug is enabled. All grace periods are expedited (rcu_expedited). Trampoline variant of Tasks RCU enabled. Tracing variant of Tasks RCU enabled. rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 GIC physical location is 0x2c001000 rcu: srcu_init: Setting srcu_struct sizes based on contention. sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns clocksource: arm,sp804: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns arch_timer: cp15 timer(s) running at 62.50MHz (virt). clocksource: arch_sys_counter: mask: 0x1ffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns sched_clock: 57 bits at 63MHz, resolution 16ns, wraps every 4398046511096ns Switching to timer-based delay loop, resolution 16ns Console: colour dummy device 80x30 Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) pid_max: default: 32768 minimum: 301 LSM: initializing lsm=lockdown,capability,landlock,yama,safesetid,tomoyo,selinux,bpf,integrity landlock: Up and running. Yama: becoming mindful. TOMOYO Linux initialized SELinux: Initializing. LSM support for eBPF active stackdepot: allocating hash table of 131072 entries via kvcalloc Mount-cache hash table entries: 4096 (order: 2, 16384 bytes, linear) Mountpoint-cache hash table entries: 4096 (order: 2, 16384 bytes, linear) CPU: Testing write buffer coherency: ok CPU0: Spectre BHB: enabling loop workaround for all CPUs CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 8<--- cut here --- Unable to handle kernel paging request at virtual address 831b70d8 when execute [831b70d8] *pgd=80000080006003, *pmd=4000008300071d(bad) Internal error: Oops: 8000020e [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x831b70d8 LR is at gpiod_set_raw_value_commit+0x4c/0x168 drivers/gpio/gpiolib.c:3030 pc : [<831b70d8>] lr : [<80890618>] psr: 40000113 sp : df85de90 ip : df85dec0 fp : df85debc r10: 00000000 r9 : 827e16e6 r8 : 00000001 r7 : 831b7040 r6 : 00000001 r5 : 840b67bc r4 : 00000003 r3 : 831b70d8 r2 : 00000001 r1 : 00000003 r0 : 831b7040 Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 8470bd40 DAC: 00000000 Register r0 information: slab kmalloc-512 start 831b7000 pointer offset 64 size 512 Register r1 information: non-paged memory Register r2 information: non-paged memory Register r3 information: slab kmalloc-512 start 831b7000 pointer offset 216 size 512 Register r4 information: non-paged memory Register r5 information: slab kmalloc-192 start 840b6780 pointer offset 60 size 192 Register r6 information: non-paged memory Register r7 information: slab kmalloc-512 start 831b7000 pointer offset 64 size 512 Register r8 information: non-paged memory Register r9 information: non-slab/vmalloc memory Register r10 information: NULL pointer Register r11 information: non-paged memory Register r12 information: non-paged memory Process swapper/1 (pid: 0, stack limit = 0xdf85c000) Stack: (0xdf85de90 to 0xdf85e000) de80: 00000003 840b67bc 00000001 000000ff dea0: ddde4798 00000001 827e16e6 00000000 df85decc df85dec0 80890ca8 808905d8 dec0: df85dee4 df85ded0 80891a3c 80890c60 8301daa8 000000ff df85defc df85dee8 dee0: 8107f408 808919f8 8301daa8 000000ff df85df0c df85df00 8107d838 8107f3b8 df00: df85df24 df85df10 8107db84 8107d80c 8301daa8 840ebb94 df85df44 df85df28 df20: 8107ea20 8107db2c 000001fd 8290cee4 00000002 ddde4798 df85df6c df85df48 df40: 8107fde8 8107e9f4 00000001 8260c498 831f4680 8260c4e0 00000000 827e16e6 df60: df85df7c df85df70 80208efc 8107fd44 df85dfc4 df85df80 80293568 80208ef4 df80: 8029e3c8 818015a4 81f860a0 824af2f8 5b935000 0f6c3d28 df85dfc4 00000097 dfa0: 00000001 831f4680 82850464 80003010 412fc0f1 00000000 df85dfd4 df85dfc8 dfc0: 80293af8 802934f8 df85dff4 df85dfd8 80210374 80293ae4 830e0a00 00000000 dfe0: 30c0387d 82850464 00000000 df85dff8 802016f4 80210254 00000000 00000000 Backtrace: [<808905cc>] (gpiod_set_raw_value_commit) from [<80890ca8>] (gpiod_set_value_nocheck+0x54/0x58 drivers/gpio/gpiolib.c:3204) r10:00000000 r9:827e16e6 r8:00000001 r7:ddde4798 r6:000000ff r5:00000001 r4:840b67bc r3:00000003 [<80890c54>] (gpiod_set_value_nocheck) from [<80891a3c>] (gpiod_set_value+0x50/0xc0 drivers/gpio/gpiolib.c:3223) [<808919ec>] (gpiod_set_value) from [<8107f408>] (gpio_led_set+0x5c/0x60 drivers/leds/leds-gpio.c:54) r5:000000ff r4:8301daa8 [<8107f3ac>] (gpio_led_set) from [<8107d838>] (__led_set_brightness drivers/leds/led-core.c:47 [inline]) [<8107f3ac>] (gpio_led_set) from [<8107d838>] (led_set_brightness_nopm drivers/leds/led-core.c:271 [inline]) [<8107f3ac>] (gpio_led_set) from [<8107d838>] (led_set_brightness_nosleep+0x38/0x5c drivers/leds/led-core.c:287) r5:000000ff r4:8301daa8 [<8107d800>] (led_set_brightness_nosleep) from [<8107db84>] (led_set_brightness+0x64/0x68 drivers/leds/led-core.c:264) [<8107db20>] (led_set_brightness) from [<8107ea20>] (led_trigger_event drivers/leds/led-triggers.c:390 [inline]) [<8107db20>] (led_set_brightness) from [<8107ea20>] (led_trigger_event+0x38/0x50 drivers/leds/led-triggers.c:380) r5:840ebb94 r4:8301daa8 [<8107e9e8>] (led_trigger_event) from [<8107fde8>] (ledtrig_cpu+0xb0/0x100 drivers/leds/trigger/ledtrig-cpu.c:86) r7:ddde4798 r6:00000002 r5:8290cee4 r4:000001fd [<8107fd38>] (ledtrig_cpu) from [<80208efc>] (arch_cpu_idle_exit+0x14/0x18 arch/arm/kernel/process.c:98) r9:827e16e6 r8:00000000 r7:8260c4e0 r6:831f4680 r5:8260c498 r4:00000001 [<80208ee8>] (arch_cpu_idle_exit) from [<80293568>] (do_idle+0x7c/0x2f0 kernel/sched/idle.c:284) [<802934ec>] (do_idle) from [<80293af8>] (cpu_startup_entry+0x20/0x24 kernel/sched/idle.c:379) r10:00000000 r9:412fc0f1 r8:80003010 r7:82850464 r6:831f4680 r5:00000001 r4:00000097 [<80293ad8>] (cpu_startup_entry) from [<80210374>] (secondary_start_kernel+0x12c/0x188 arch/arm/kernel/smp.c:482) [<80210248>] (secondary_start_kernel) from [<802016f4>] (__enable_mmu+0x0/0xc arch/arm/kernel/head.S:438) r7:82850464 r6:30c0387d r5:00000000 r4:830e0a00 Code: 831b710c 831b70d8 80216664 802160d0 (00000000) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 831b710c tsthi fp, #12, 2 4: 831b70d8 tsthi fp, #216 ; 0xd8 8: 80216664 eorhi r6, r1, r4, ror #12 c: 802160d0 ldrdhi r6, [r1], -r0 ; * 10: 00000000 andeq r0, r0, r0 <-- trapping instruction