[patch 26/85] [PATCH 06/44] [CVE-2009-0029] Make sys_syslog aconditional system call

[Greg KH]

2.6.27-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>

commit f627a741d24f12955fa2d9f8831c3b12860635bd upstream.

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

Acked-by: Kyle McMartin <kyle@xxxxxxxxxx>
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 kernel/printk.c |    5 -----
 kernel/sys_ni.c |    1 +
 2 files changed, 1 insertion(+), 5 deletions(-)

--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -782,11 +782,6 @@ 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)
 {
 }
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -125,6 +125,7 @@ cond_syscall(sys_vm86old);
 cond_syscall(sys_vm86);
 cond_syscall(compat_sys_ipc);
 cond_syscall(compat_sys_sysctl);
+cond_syscall(sys_syslog);
 
 /* arch-specific weak syscall entries */
 cond_syscall(sys_pciconfig_read);

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