Revision 7307616245babb12c923151d8ef69af02e46c255 authored by Dan Carpenter on 13 October 2016, 08:06:06 UTC, committed by David S. Miller on 13 October 2016, 16:10:01 UTC
We should clear out the padding and unused struct members so that we don't expose stack information to userspace. Fixes: fdb3accc2c15 ('tipc: add the ability to get UDP options via netlink') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 6104e11
exec_domain.c
/*
* Handling of different ABIs (personalities).
*
* We group personalities into execution domains which have their
* own handlers for kernel entry points, signal mapping, etc...
*
* 2001-05-06 Complete rewrite, Christoph Hellwig (hch@infradead.org)
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/kmod.h>
#include <linux/module.h>
#include <linux/personality.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/syscalls.h>
#include <linux/sysctl.h>
#include <linux/types.h>
#include <linux/fs_struct.h>
#ifdef CONFIG_PROC_FS
static int execdomains_proc_show(struct seq_file *m, void *v)
{
seq_puts(m, "0-0\tLinux \t[kernel]\n");
return 0;
}
static int execdomains_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, execdomains_proc_show, NULL);
}
static const struct file_operations execdomains_proc_fops = {
.open = execdomains_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int __init proc_execdomains_init(void)
{
proc_create("execdomains", 0, NULL, &execdomains_proc_fops);
return 0;
}
module_init(proc_execdomains_init);
#endif
SYSCALL_DEFINE1(personality, unsigned int, personality)
{
unsigned int old = current->personality;
if (personality != 0xffffffff)
set_personality(personality);
return old;
}
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