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* [patch] c/r: ipc: uninitialized variable in compat_do_msg_fill()
@ 2012-04-13 13:37 ` Dan Carpenter
  0 siblings, 0 replies; 2+ messages in thread
From: Dan Carpenter @ 2012-04-13 13:37 UTC (permalink / raw)
  To: Andrew Morton, Stanislav Kinsbursky
  Cc: Chris Metcalf, Arnd Bergmann, linux-kernel, kernel-janitors

We never initialize "msgp".  It's unfortunate that GCC doesn't warn
about this.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/ipc/compat.c b/ipc/compat.c
index 6da376b..0c2ebd0 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -363,7 +363,7 @@ static long compat_do_msg_steal(void __user *dest, struct msg_msg *msg, size_t b
 
 long compat_do_msg_fill(void __user *dest, struct msg_msg *msg, size_t bufsz)
 {
-	struct compat_msgbuf __user *msgp;
+	struct compat_msgbuf __user *msgp = dest;
 	size_t msgsz;
 
 	if (put_user(msg->m_type, &msgp->mtype))

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* [patch] c/r: ipc: uninitialized variable in compat_do_msg_fill()
@ 2012-04-13 13:37 ` Dan Carpenter
  0 siblings, 0 replies; 2+ messages in thread
From: Dan Carpenter @ 2012-04-13 13:37 UTC (permalink / raw)
  To: Andrew Morton, Stanislav Kinsbursky
  Cc: Chris Metcalf, Arnd Bergmann, linux-kernel, kernel-janitors

We never initialize "msgp".  It's unfortunate that GCC doesn't warn
about this.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/ipc/compat.c b/ipc/compat.c
index 6da376b..0c2ebd0 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -363,7 +363,7 @@ static long compat_do_msg_steal(void __user *dest, struct msg_msg *msg, size_t b
 
 long compat_do_msg_fill(void __user *dest, struct msg_msg *msg, size_t bufsz)
 {
-	struct compat_msgbuf __user *msgp;
+	struct compat_msgbuf __user *msgp = dest;
 	size_t msgsz;
 
 	if (put_user(msg->m_type, &msgp->mtype))

^ permalink raw reply related	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2012-04-13 13:38 UTC | newest]

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2012-04-13 13:37 [patch] c/r: ipc: uninitialized variable in compat_do_msg_fill() Dan Carpenter
2012-04-13 13:37 ` Dan Carpenter

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