Mark Harris 5caae1deee riscv: hwprobe: Avoid uninitialized read in hwprobe_get_cpus() ...

When cpusetsize < cpumask_size(), hwprobe_get_cpus() did not fully
initialize its copy of the cpu mask, which could cause non-deterministic
results from the riscv_hwprobe syscall on a system with more than 8 CPUs
when the supplied cpu mask is empty.  Address this by fully initializing
the cpu mask.

Fixes: e178bf146e ("RISC-V: hwprobe: Introduce which-cpus flag")
Signed-off-by: Mark Harris <[email protected]>
Reviewed-by: Nam Cao <[email protected]>
Reviewed-by: Michael Ellerman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paul Walmsley <[email protected]>

2026-07-15 11:12:40 -06:00

..

compat_vdso

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pi

riscv: pi: replace strlcat with strscpy in get_early_cmdline

2026-06-06 20:17:52 -06:00

probes

riscv: probes: save original sp in rethook trampoline

2026-06-30 18:46:54 -06:00

tests

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

vdso

arch/riscv: vdso: remove CFI landing pad from rt_sigreturn

2026-07-14 19:34:38 -06:00

vdso_cfi

riscv: vdso_cfi: Add .gitignore for build artifacts

2026-04-04 18:42:44 -06:00

vendor_extensions

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.gitignore

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acpi_numa.c

RISC-V: ACPI: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval

2026-04-06 16:55:15 +02:00

acpi.c

Merge tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2026-04-24 10:00:37 -07:00

alternative.c

riscv: alternative: Also patch the CFI vDSO

2026-06-07 01:56:28 -06:00

asm-offsets.c

riscv: Fix 32-bit call_on_irq_stack() frame pointer ABI

2026-06-25 13:44:27 -06:00

bugs.c

riscv: use sysfs_emit in cpu_show_ghostwrite

2026-06-06 20:17:52 -06:00

cacheinfo.c

riscv: cacheinfo: Fix node reference leak in populate_cache_leaves

2026-06-06 23:48:15 -06:00

cfi.c

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compat_signal.c

riscv: Fix register corruption from uninitialized cregs on error

2026-05-01 21:11:31 -06:00

compat_syscall_table.c

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copy-unaligned.h

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copy-unaligned.S

riscv: Define __riscv_copy_{,vec_}{words,bytes}_unaligned() using SYM_TYPED_FUNC_START

2026-04-29 20:38:17 -06:00

cpu_ops_sbi.c

riscv: cpu_ops_sbi: No need to be bothered to check ret.error

2026-06-06 23:48:14 -06:00

cpu_ops_spinwait.c

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cpu_ops.c

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cpu-hotplug.c

riscv: cpu_ops: Change return value type of cpu_is_stopped() to bool

2026-06-06 23:48:14 -06:00

cpu.c

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cpufeature.c

riscv: cpufeature: Use pre-defined ISA ext macros to index isa2hwcap

2026-05-07 19:38:38 -06:00

crash_dump.c

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crash_save_regs.S

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efi-header.S

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efi.c

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entry.S

riscv: mm: Make mark_new_valid_map() stuff depend on 64BIT && MMU

2026-07-13 11:29:52 -06:00

fpu.S

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ftrace.c

riscv: fix various typos in comments and code

2026-04-04 18:42:39 -06:00

head.h

riscv: Remove support for XIP kernel

2026-04-04 18:42:44 -06:00

head.S

riscv: Remove support for XIP kernel

2026-04-04 18:42:44 -06:00

hibernate-asm.S

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hibernate.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

image-vars.h

riscv: add platform-specific double word shifts for riscv32

2026-05-28 21:24:51 -07:00

irq.c

riscv: panic if IRQ handler stacks cannot be allocated

2026-06-07 00:56:22 -06:00

jump_label.c

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kernel_mode_fpu.c

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kernel_mode_vector.c

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kexec_elf.c

riscv: kexec: use min to simplify riscv_kexec_elf_load

2026-06-07 01:06:19 -06:00

kexec_image.c

riscv: kexec_image: Fix dead link to boot-image-header.rst

2026-01-05 17:54:11 -07:00

kexec_relocate.S

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kgdb.c

riscv: kgdb: fix several debug register assignment bugs

2026-04-04 18:36:52 -06:00

machine_kexec_file.c

riscv: kexec_file: Constrain segment placement to direct map

2026-06-06 23:48:15 -06:00

machine_kexec.c

riscv: Prevent NULL pointer dereference in machine_kexec_prepare()

2026-07-06 18:24:06 -06:00

Makefile

arch/riscv: add dual vdso creation logic and select vdso based on hw

2026-01-29 02:38:40 -07:00

Makefile.syscalls

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mcount-dyn.S

riscv: fix various typos in comments and code

2026-04-04 18:42:39 -06:00

mcount.S

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module-sections.c

riscv: module: Use generic cmp_int() instead of custom cmp_3way()

2026-06-06 20:17:53 -06:00

module.c

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22 08:26:33 -08:00

paravirt.c

riscv/paravirt: Use common code for paravirt_steal_clock()

2026-01-12 16:47:33 +01:00

patch.c

riscv: patch: Avoid early phys_to_page()

2026-04-04 18:37:03 -06:00

perf_callchain.c

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perf_regs.c

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process.c

riscv: cfi: clear CFI lock status in start_thread()

2026-04-04 18:40:58 -06:00

ptrace.c

riscv/ptrace: Use USER_REGSET_NOTE_TYPE for REGSET_CFI

2026-06-06 20:17:04 -06:00

reset.c

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return_address.c

…

riscv_ksyms.c

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sbi_ecall.c

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sbi-ipi.c

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sbi.c

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setup.c

riscv: propagate insert_resource result from add_resource

2026-06-06 20:17:52 -06:00

signal.c

riscv/signal: save and restore the shadow stack on a signal

2026-01-29 02:38:40 -07:00

smp.c

genirq/proc: Increase default interrupt number precision to four

2026-05-26 16:21:14 +02:00

smpboot.c

riscv: smp: use secs_to_jiffies in __cpu_up

2026-06-25 12:24:25 -06:00

soc.c

riscv: fix various typos in comments and code

2026-04-04 18:42:39 -06:00

stacktrace.c

riscv: stacktrace: Remove bogus -0x4 offset in non-FP walk_stackframe

2026-06-06 23:48:15 -06:00

suspend_entry.S

riscv: Remove support for XIP kernel

2026-04-04 18:42:44 -06:00

suspend.c

riscv: fix various typos in comments and code

2026-04-04 18:42:39 -06:00

sys_hwprobe.c

riscv: hwprobe: Avoid uninitialized read in hwprobe_get_cpus()

2026-07-15 11:12:40 -06:00

sys_riscv.c

riscv/mm: ensure PROT_WRITE leads to VM_READ | VM_WRITE

2026-01-25 21:09:53 -07:00

syscall_table.c

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time.c

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traps_misaligned.c

riscv: traps_misaligned: Avoid redundant unaligned access speed probe

2026-06-08 10:47:22 -06:00

traps.c

Merge tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2026-04-24 10:00:37 -07:00

unaligned_access_speed.c

riscv: misaligned: Fix fast_unaligned_access_speed_key init

2026-06-08 10:47:22 -06:00

usercfi.c

riscv: cfi: reject unknown flags in PR_SET_CFI

2026-06-06 20:17:05 -06:00

vdso.c

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-21 20:03:00 -08:00

vec-copy-unaligned.S

riscv: Define __riscv_copy_{,vec_}{words,bytes}_unaligned() using SYM_TYPED_FUNC_START

2026-04-29 20:38:17 -06:00

vector.c

riscv: vector: init vector context with proper vlenb

2026-02-09 15:27:33 -07:00

vendor_extensions.c

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vmcore_info.c

riscv: Remove support for XIP kernel

2026-04-04 18:42:44 -06:00

vmlinux-xip.lds.S

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vmlinux.lds.S

riscv: Remove support for XIP kernel

2026-04-04 18:42:44 -06:00