static void dump_invalid_creds(const struct cred *cred, const char *label,
			       const struct task_struct *tsk)
{
	printk(KERN_ERR "CRED: %s credentials: %p %s%s%s\n",
	       label, cred,
	       cred == &init_cred ? "[init]" : "",
	       cred == tsk->real_cred ? "[real]" : "",
	       cred == tsk->cred ? "[eff]" : "");
	printk(KERN_ERR "CRED: ->magic=%x, put_addr=%p\n",
	       cred->magic, cred->put_addr);
	printk(KERN_ERR "CRED: ->usage=%d, subscr=%d\n",
	       atomic_read(&cred->usage),
	       read_cred_subscribers(cred));
	printk(KERN_ERR "CRED: ->*uid = { %d,%d,%d,%d }\n",
	       cred->uid, cred->euid, cred->suid, cred->fsuid);
	printk(KERN_ERR "CRED: ->*gid = { %d,%d,%d,%d }\n",
	       cred->gid, cred->egid, cred->sgid, cred->fsgid);
#ifdef CONFIG_SECURITY
	printk(KERN_ERR "CRED: ->security is %p\n", cred->security);
	if ((unsigned long) cred->security >= PAGE_SIZE &&
	    (((unsigned long) cred->security & 0xffffff00) !=
	     (POISON_FREE << 24 | POISON_FREE << 16 | POISON_FREE << 8)))
		printk(KERN_ERR "CRED: ->security {%x, %x}\n",
		       ((u32*)cred->security)[0],
		       ((u32*)cred->security)[1]);
#endif
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.