Commit f627a741 authored Jan 14, 2009 by Heiko Carstens

[CVE-2009-0029] Make sys_syslog a conditional system call



Remove the -ENOSYS implementation for !CONFIG_PRINTK and use
the cond_syscall infrastructure instead.

Acked-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

parent c9da9f21

kernel/printk.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -742,11 +742,6 @@ EXPORT_SYMBOL(vprintk);

		#else

		asmlinkage long sys_syslog(int type, char __user *buf, int len)
		{
		return -ENOSYS;
		}

		static void call_console_drivers(unsigned start, unsigned end)
		{
		}

kernel/sys_ni.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -131,6 +131,7 @@ cond_syscall(sys_io_destroy);
		cond_syscall(sys_io_submit);
		cond_syscall(sys_io_cancel);
		cond_syscall(sys_io_getevents);
		cond_syscall(sys_syslog);

		/* arch-specific weak syscall entries */
		cond_syscall(sys_pciconfig_read);