Ошибка С++

[Ilai]

Добрый день!

Помогите пожалуйста с программой выдает вот такую ошибку: Run-Time Check Failure #2 - Stack around the variable 's' was corrupted.

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <conio.h>
#include <string.h>
#include <malloc.h>
typedef struct list {
	char word[15];
	struct list *next;
} LIST;

LIST *read_list(LIST *lst)
{
	LIST *p;
	FILE *f;
	f = fopen("words.txt", "r");
	if (!feof(f))
	{
		lst = (LIST *)malloc(sizeof(LIST));
		p = lst;
		while (1)
		{
			fscanf(f, "%s", &p->word);
			if (!feof(f))
			{
				p->next = (LIST *)malloc(sizeof(LIST));
				p = p->next;
			}
			else break;
		}
		p->next = NULL;
	}
	else printf("File is empty\n");
	fclose(f);
	return lst;
}

void write_list(LIST *lst, const char *s)
{
	FILE *f;
	LIST *p = lst, *prev;
	prev = lst;
	f = fopen("words.txt", "w");
	while (p)
	{
		fprintf(f, "%s ", p->word);
		if (strstr(p->word, s))
			fprintf(f, "%s ", p->word);
		prev = p->next;
		free(p);
		p = prev;
	}
	fclose(f);
}

void main()
{
	char s;
	scanf("%s", &s);
	LIST *lst = NULL;
	lst = read_list(lst);
	write_list(lst, &s);
}

[BDA]

char s;
scanf("%s", &s);

Считываете по адресу 1 символа целую строку.