Booting Linux on physical CPU 0x0000000000 [0x000f0510] Linux version 6.11.0-rc2-syzkaller-g1fda763e1154 (syzkaller@syzkaller) (gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #0 SMP PREEMPT now random: crng init done Machine model: linux,dummy-virt efi: UEFI not found. NUMA: No NUMA configuration found NUMA: Faking a node at [mem 0x0000000040000000-0x00000000bfffffff] NUMA: NODE_DATA [mem 0xbfc0e340-0xbfc11fff] Zone ranges: DMA [mem 0x0000000040000000-0x00000000bfffffff] DMA32 empty Normal empty Device empty Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000040000000-0x00000000bfffffff] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff] cma: Reserved 32 MiB at 0x00000000bba00000 on node -1 psci: probing for conduit method from DT. psci: PSCIv1.1 detected in firmware. psci: Using standard PSCI v0.2 function IDs psci: Trusted OS migration not required psci: SMC Calling Convention v1.0 ================================================================== BUG: KASAN: invalid-access in smp_build_mpidr_hash arch/arm64/kernel/setup.c:133 [inline] BUG: KASAN: invalid-access in setup_arch+0x794/0xa7c arch/arm64/kernel/setup.c:356 Write of size 4 at addr 03ff800084ab7e10 by task swapper/0 Pointer tag: [03], memory tag: [fe] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.11.0-rc2-syzkaller-g1fda763e1154 #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x128/0x214 arch/arm64/kernel/stacktrace.c:317 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324 __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x138/0x1c8 lib/dump_stack.c:119 print_address_description mm/kasan/report.c:377 [inline] print_report+0x118/0x5ac mm/kasan/report.c:488 kasan_report+0xc8/0x108 mm/kasan/report.c:601 kasan_check_range+0x94/0xb8 mm/kasan/sw_tags.c:84 __hwasan_store4_noabort+0x20/0x2c mm/kasan/sw_tags.c:149 smp_build_mpidr_hash arch/arm64/kernel/setup.c:133 [inline] setup_arch+0x794/0xa7c arch/arm64/kernel/setup.c:356 start_kernel+0xc0/0xb10 init/main.c:926 __primary_switched+0x84/0x8c arch/arm64/kernel/head.S:243 The buggy address belongs to stack of task swapper/0 Memory state around the buggy address: ffff800084ab7c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe 00 ffff800084ab7d00: 00 00 00 fe fe 00 00 00 fe fe fe fe fe fe fe fe >ffff800084ab7e00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ^ ffff800084ab7f00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ffff800084ab8000: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ================================================================== kasan: KernelAddressSanitizer initialized (sw-tags, stacktrace=on) percpu: Embedded 35 pages/cpu s103752 r8192 d31416 u143360 Detected PIPT I-cache on CPU0 CPU features: detected: GIC system register CPU interface CPU features: detected: HCRX_EL2 register CPU features: detected: 52-bit Virtual Addressing (LPA2) CPU features: detected: Virtualization Host Extensions CPU features: detected: Spectre-v4 alternatives: applying boot alternatives Kernel command line: root=/dev/vda console=ttyAMA0 Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear) Fallback order for Node 0: 0 Built 1 zonelists, mobility grouping on. Total pages: 524288 Policy zone: DMA mem auto-init: stack:all(zero), heap alloc:on, heap free:off stackdepot: allocating hash table via alloc_large_system_hash stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) software IO TLB: SWIOTLB bounce buffer size adjusted to 2MB software IO TLB: area num 1. software IO TLB: mapped [mem 0x00000000b1d3e000-0x00000000b1f3e000] (2MB) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 allocated 4194304 bytes of page_ext trace event string verifier disabled Running RCU self tests Running RCU synchronous self tests rcu: Preemptible hierarchical RCU implementation. rcu: RCU lockdep checking is enabled. rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1. rcu: RCU callback double-/use-after-free debug is enabled. rcu: RCU debug extended QS entry/exit. 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=1 Running RCU synchronous self tests RCU Tasks: Setting shift to 0 and lim to 1 rcu_task_cb_adjust=1. RCU Tasks Trace: Setting shift to 0 and lim to 1 rcu_task_cb_adjust=1. NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 GICv3: GIC: Using split EOI/Deactivate mode GICv3: 256 SPIs implemented GICv3: 0 Extended SPIs implemented Root IRQ handler: gic_handle_irq GICv3: GICv3 features: 16 PPIs GICv3: GICv4 features: GICv3: GICD_CTRL.DS=1, SCR_EL3.FIQ=0 GICv3: CPU0: found redistributor 0 region 0:0x00000000080a0000 ITS [mem 0x08080000-0x0809ffff] ITS@0x0000000008080000: Single VMOVP capable ITS@0x0000000008080000: allocated 8192 Devices @46e30000 (indirect, esz 8, psz 64K, shr 1) ITS@0x0000000008080000: allocated 8192 Interrupt Collections @46e40000 (flat, esz 8, psz 64K, shr 1) ITS@0x0000000008080000: allocated 8192 Virtual CPUs @46e50000 (indirect, esz 8, psz 64K, shr 1) GICv3: using LPI property table @0x0000000046e60000 ITS: Allocated DevID ffff as GICv4 proxy device (2 slots) ITS: Enabling GICv4 support GICv3: CPU0: using allocated LPI pending table @0x0000000046e70000 rcu: srcu_init: Setting srcu_struct sizes based on contention. arch_timer: cp15 timer(s) running at 62.50MHz (phys). 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 Console: colour dummy device 80x25 Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar ... MAX_LOCKDEP_SUBCLASSES: 8 ... MAX_LOCK_DEPTH: 48 ... MAX_LOCKDEP_KEYS: 8192 ... CLASSHASH_SIZE: 4096 ... MAX_LOCKDEP_ENTRIES: 131072 ... MAX_LOCKDEP_CHAINS: 65536 ... CHAINHASH_SIZE: 32768 memory used by lock dependency info: 11817 kB memory used for stack traces: 8320 kB per task-struct memory footprint: 1920 bytes 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,ima,evm landlock: Up and running. Yama: becoming mindful. TOMOYO Linux initialized SELinux: Initializing. Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) Running RCU synchronous self tests Running RCU synchronous self tests