Added patch from Leland Olds which fixes a buffer overrun and improved

symbol lookup.

oops.c

@@ -0,0 +1,118 @@
+/*
+ * Loadable driver which provides the ability to generate a kernel
+ * protection fault.  Mainly useful for testing the address translation
+ * capabilities of klogd.
+ *
+ * Fri Oct 27 14:34:27 CDT 1995:  Dr. Wettstein
+ *
+ *	Initial version.
+ */
+
+#define NEW_MODULES
+
+/* Kernel includes. */
+#include <linux/kernel.h>
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+
+/* Standard module stuff. */
+#if defined(NEW_MODULES)
+#include <linux/module.h>
+#else
+#include <linux/module.h>
+#include <linux/version.h>
+char kernel_version[] = UTS_RELEASE;
+#endif
+
+
+static int major = 32;
+
+
+#ifdef MODULE
+static int oops_ioctl(struct inode *, struct file *, unsigned int cmd, unsigned long arg);
+static int oops_open(struct inode * node, struct file * file);
+static void oops(void);
+
+static struct symbol_table these_symbols = {
+#include <linux/symtab_begin.h>
+	X(oops_open),
+	X(oops_ioctl),
+	X(oops),
+#include <linux/symtab_end.h>
+};
+
+/* driver specific module definitions */
+static struct file_operations oops_fops1 = {
+	NULL,		/* hw_lseek */
+	NULL,		/* hw_read */
+	NULL,		/* write */
+	NULL,		/* hw_readdir */
+	NULL,		/* hw_select */
+	oops_ioctl,	/* hw_ioctl */
+	NULL,		/* mmap */
+	oops_open,	/* hw_open */
+	NULL,		/* hw_release */
+	NULL		/* fsync */
+};
+
+static int oops_open(struct inode * node, struct file * file)
+{
+	printk("Called oops_open.\n");
+	return(0);
+}
+
+
+static int oops_ioctl(struct inode * node, struct file * file, \
+		      unsigned int cmd, unsigned long arg)
+{
+	
+	printk("Called oops_ioctl.\n");
+	printk("Cmd: %d, Arg: %ld\n", cmd, arg);
+	if ( cmd == 1 )
+	{
+		oops();
+	}
+		
+	return(0);
+}
+
+static void oops()
+
+{
+	auto unsigned long *p = (unsigned long *) 828282828;
+	*p = 5;
+	return;
+}
+
+	
+int
+init_module(void)
+{
+	printk("oops: Module initilization.\n");
+	if (register_chrdev(major, "oops", &oops_fops1)) {
+		printk("register_chrdev failed.");
+		return -EIO;
+	}
+
+	printk("oops: Registering symbols.\n");
+  	register_symtab(&these_symbols);
+	
+	return 0;
+}
+
+
+void
+cleanup_module(void)
+{
+	/* driver specific cleanups, ususally "unregister_*()" */
+	printk("oops: Module unloadeding.\n");
+	if (unregister_chrdev(major, "oops") != 0)
+		printk("cleanup_module failed\n");
+	else
+		printk("cleanup_module succeeded\n");
+
+	return;
+
+}
+#endif /* MODULE */