================================================================== BUG: KASAN: user-memory-access in test_bit include/asm-generic/bitops/non-atomic.h:106 [inline] BUG: KASAN: user-memory-access in cpumask_test_cpu include/linux/cpumask.h:373 [inline] BUG: KASAN: user-memory-access in trace_sys_enter include/trace/events/syscalls.h:18 [inline] BUG: KASAN: user-memory-access in do_syscall_trace_enter+0x24c/0x5ae arch/riscv/kernel/ptrace.c:255 Read of size 8 at addr 000000000118e9ae by task syz-executor.1/3237 CPU: 1 PID: 3237 Comm: syz-executor.1 Not tainted 5.12.0-rc8-syzkaller-00194-g18a3c5f7abfd #0 Hardware name: riscv-virtio,qemu (DT) Call Trace: [] walk_stackframe+0x0/0x23c arch/riscv/kernel/traps.c:202 [] dump_backtrace+0x40/0x4e arch/riscv/kernel/stacktrace.c:113 [] show_stack+0x22/0x2e arch/riscv/kernel/stacktrace.c:118 [] __dump_stack lib/dump_stack.c:79 [inline] [] dump_stack+0x148/0x1d8 lib/dump_stack.c:120 [] __kasan_report mm/kasan/report.c:403 [inline] [] kasan_report+0x146/0x18c mm/kasan/report.c:416 [] check_region_inline mm/kasan/generic.c:174 [inline] [] __asan_load8+0x4a/0x80 mm/kasan/generic.c:253 [] test_bit include/asm-generic/bitops/non-atomic.h:106 [inline] [] cpumask_test_cpu include/linux/cpumask.h:373 [inline] [] trace_sys_enter include/trace/events/syscalls.h:18 [inline] [] do_syscall_trace_enter+0x24c/0x5ae arch/riscv/kernel/ptrace.c:255 [] handle_syscall_trace_enter+0x6/0x1e ================================================================== Kernel panic - not syncing: panic_on_warn set ... SMP: stopping secondary CPUs Rebooting in 86400 seconds..