diff options
Diffstat (limited to 'kernel/stackleak.c')
| -rw-r--r-- | kernel/stackleak.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/stackleak.c b/kernel/stackleak.c index 34c9d81eea94..bb65321761b4 100644 --- a/kernel/stackleak.c +++ b/kernel/stackleak.c @@ -15,22 +15,23 @@ #ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE #include <linux/jump_label.h> +#include <linux/string_choices.h> #include <linux/sysctl.h> #include <linux/init.h> static DEFINE_STATIC_KEY_FALSE(stack_erasing_bypass); #ifdef CONFIG_SYSCTL -static int stack_erasing_sysctl(struct ctl_table *table, int write, +static int stack_erasing_sysctl(const struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int ret = 0; int state = !static_branch_unlikely(&stack_erasing_bypass); int prev_state = state; + struct ctl_table table_copy = *table; - table->data = &state; - table->maxlen = sizeof(int); - ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos); + table_copy.data = &state; + ret = proc_dointvec_minmax(&table_copy, write, buffer, lenp, ppos); state = !!state; if (ret || !write || state == prev_state) return ret; @@ -41,10 +42,10 @@ static int stack_erasing_sysctl(struct ctl_table *table, int write, static_branch_enable(&stack_erasing_bypass); pr_warn("stackleak: kernel stack erasing is %s\n", - state ? "enabled" : "disabled"); + str_enabled_disabled(state)); return ret; } -static struct ctl_table stackleak_sysctls[] = { +static const struct ctl_table stackleak_sysctls[] = { { .procname = "stack_erasing", .data = NULL, @@ -54,7 +55,6 @@ static struct ctl_table stackleak_sysctls[] = { .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, - {} }; static int __init stackleak_sysctls_init(void) |