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: 1952320K/2097152K available (24576K kernel code, 2362K rwdata, 8400K rodata, 2048K init, 867K bss, 128448K 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 NULL pointer dereference at virtual address 0000001c when read [0000001c] *pgd=80000080004003, *pmd=00000000 Internal error: Oops: 206 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at psi_task_switch+0x1e0/0x204 kernel/sched/psi.c:940 LR is at psi_task_switch+0x190/0x204 kernel/sched/psi.c:932 pc : [<802a3c58>] lr : [<802a3c08>] psr: a0000193 sp : 82601e70 ip : 5b923000 fp : 82601ebc r10: 8261ae40 r9 : 00000001 r8 : 00000002 r7 : 1b5aa6f1 r6 : 00000000 r5 : 8260c964 r4 : 00000000 r3 : 826f6748 r2 : 8309d13c r1 : 00000000 r0 : 00000000 Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 80003000 DAC: fffffffd Register r0 information: 8<--- cut here --- Unable to handle kernel paging request at virtual address 00802158 when read [00802158] *pgd=80000080004003, *pmd=00000000 Internal error: Oops: 206 [#2] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __find_vmap_area mm/vmalloc.c:841 [inline] PC is at find_vmap_area mm/vmalloc.c:1862 [inline] PC is at find_vm_area mm/vmalloc.c:2623 [inline] PC is at vmalloc_dump_obj+0x38/0xb4 mm/vmalloc.c:4221 LR is at __raw_spin_lock include/linux/spinlock_api_smp.h:132 [inline] LR is at _raw_spin_lock+0x18/0x58 kernel/locking/spinlock.c:154 pc : [<80479e58>] lr : [<81800154>] psr: 20000193 sp : 82601cd8 ip : 82601cc0 fp : 82601cec r10: 8261ae40 r9 : 8261c9a4 r8 : 8284f41c r7 : 60000193 r6 : 00000001 r5 : 00000000 r4 : 00802160 r3 : f0830b42 r2 : 00001ef5 r1 : 00000000 r0 : 00000001 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 80003000 DAC: fffffffd