linux-kernel - [PATCH] x86: add __user markup on sys32

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Date:	Wed, 18 Aug 2010 10:41:08 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86: add __user markup on sys32_waitpid()

stat_addr, 2nd arg, is a user pointer but was missing __user markup.
Add it.

Signed-off-by: Namhyung Kim <namhyung@...il.com>
---
 arch/x86/ia32/sys_ia32.c        |    2 +-
 arch/x86/include/asm/sys_ia32.h |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 3d09331..9677f8e 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -333,7 +333,7 @@ asmlinkage long sys32_alarm(unsigned int seconds)
 	return alarm_setitimer(seconds);
 }
 
-asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr,
+asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr,
 			      int options)
 {
 	return compat_sys_wait4(pid, stat_addr, options, NULL);
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index cf4e2e3..ce7095c 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -40,7 +40,7 @@ asmlinkage long sys32_rt_sigprocmask(int, compat_sigset_t __user *,
 				     compat_sigset_t __user *, unsigned int);
 asmlinkage long sys32_alarm(unsigned int);
 
-asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int);
+asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int);
 asmlinkage long sys32_sysfs(int, u32, u32);
 
 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t,
-- 
1.7.0.4

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