Messages in this thread Patch in this message | | | Subject | [PATCH linux-next] ipc: fix local variable initialization in compat_do_msg_fill() | From | Konstantin Khlebnikov <> | Date | Thu, 19 Apr 2012 16:21:24 +0400 |
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The "msgp" must points to the userspace buffer.
fix for linux-next commit 774d0252d303969a7281eefd6eaccde50bb6eb6e ("c/r: ipc: message queue receive cleanup")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Stanislav Kinsbursky <skinsbursky@parallels.com> Cc: Lucas De Marchi <lucas.de.marchi@gmail.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Andrew Morton <akpm@linux-foundation.org> --- ipc/compat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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))
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