linux/arch/arc/kernel
Pengpeng Hou 460511c11f arc: validate DT CPU map strings before parsing them
arc_get_cpu_map() fetches the possible-cpus or present-cpus property
from the flat DT and immediately passes the raw pointer to
cpulist_parse(). That parser expects a NUL-terminated text buffer, but
this path does not prove that the DT property is terminated within its
declared bounds.

Reject unterminated CPU-map properties before handing them to
cpulist_parse().

Changes since v1:
- fold the NUL-termination check into the initial lookup test, as
  suggested by Vineet Gupta

Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
2026-07-10 15:26:04 -07:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
arc_hostlink.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
arcksyms.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
asm-offsets.c arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c 2025-09-25 09:57:15 +02:00
ctx_sw_asm.S ARC: __switch_to: move ksp to thread_info from thread_struct 2023-08-17 20:31:59 -07:00
devtree.c of/fdt: add dt_phys arg to early_init_dt_scan and early_init_dt_verify 2024-10-29 15:32:45 -05:00
disasm.c ARC: disasm: handle ARCv2 case in kprobe get/set functions 2022-04-26 09:34:42 -07:00
entry-arcv2.S ARC: Fix typos 2024-04-01 18:40:39 -07:00
entry-compact.S ARC: entry: Add more common chores to EXCEPTION_PROLOGUE 2023-08-18 10:30:07 -07:00
entry.S ARC: Fix typos 2024-04-01 18:40:39 -07:00
fpu.c ARC: fp: set FPU_STATUS.FWE to enable FPU_STATUS update on context switch 2021-08-03 18:58:33 -07:00
head.S ARC: Fix typos 2024-04-01 18:40:39 -07:00
intc-arcv2.c ARC: Switch to irq_domain_create_linear() 2025-05-16 21:06:08 +02:00
intc-compact.c ARC: Switch to irq_domain_create_linear() 2025-05-16 21:06:08 +02:00
irq.c irq: arc: avoid CONFIG_HANDLE_DOMAIN_IRQ 2021-10-25 10:05:28 +01:00
jump_label.c jump_label: make initial NOP patching the special case 2022-06-24 09:48:55 +02:00
kgdb.c ARC: pt_regs: create seperate type for ecr 2023-08-18 10:30:47 -07:00
kprobes.c ARC: Fix -Wmissing-prototypes warnings 2024-04-01 18:40:39 -07:00
Makefile arch: use always-$(KBUILD_BUILTIN) for vmlinux.lds 2025-06-07 14:38:07 +09:00
Makefile.syscalls arc: convert to generic syscall table 2024-07-10 14:23:38 +02:00
mcip.c ARC: Switch to irq_domain_create_linear() 2025-05-16 21:06:08 +02:00
module.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
perf_event.c arc/perf: Remove driver-specific throttle support 2025-05-21 13:57:45 +02:00
process.c arch: copy_thread: pass clone_flags as u64 2025-09-01 15:31:34 +02:00
ptrace.c ARC: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names 2025-07-14 22:27:46 -07:00
reset.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
setup.c ARC: Fix typos 2024-04-01 18:40:39 -07:00
signal.c ARC: Fix typos 2024-04-01 18:40:39 -07:00
smp.c arc: validate DT CPU map strings before parsing them 2026-07-10 15:26:04 -07:00
stacktrace.c ARC: -Wmissing-prototype warning fixes 2023-08-13 16:53:02 -07:00
sys.c arc: convert to generic syscall table 2024-07-10 14:23:38 +02:00
traps.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
troubleshoot.c fs: create helper file_user_path() for user displayed mapped file path 2023-10-19 11:03:15 +02:00
unaligned.c arch: remove get_task_comm() and print task comm directly 2025-01-12 20:21:15 -08:00
unaligned.h arc: get rid of private asm/unaligned.h 2024-10-02 17:22:47 -04:00
unwind.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
vmlinux.lds.S kbuild: Split .modinfo out from ELF_DETAILS 2026-02-26 11:50:19 -07:00