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Commit f627a741 authored by Heiko Carstens's avatar Heiko Carstens
Browse files

[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: default avatarKyle McMartin <kyle@redhat.com>
Signed-off-by: default avatarHeiko 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);