diff options
| -rw-r--r-- | arch/arm64/kernel/probes/kprobes.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c index 70b91a8c6bb3..c0942cce3b68 100644 --- a/arch/arm64/kernel/probes/kprobes.c +++ b/arch/arm64/kernel/probes/kprobes.c @@ -131,9 +131,15 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) void *alloc_insn_page(void) { - return __vmalloc_node_range(PAGE_SIZE, 1, VMALLOC_START, VMALLOC_END, + void *addr; + + addr = __vmalloc_node_range(PAGE_SIZE, 1, VMALLOC_START, VMALLOC_END, GFP_KERNEL, PAGE_KERNEL_ROX, VM_FLUSH_RESET_PERMS, NUMA_NO_NODE, __builtin_return_address(0)); + if (!addr) + return NULL; + set_memory_rox((unsigned long)addr, 1); + return addr; } /* arm kprobe: install breakpoint in text */ |