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--- a/vmnet/Makefile
+++ b/vmnet/Makefile
@@ -43,7 +43,11 @@ INCLUDE += -I$(SRCROOT)/shared
endif
+ifdef KVERSION
+VM_UNAME = $(KVERSION)
+else
VM_UNAME = $(shell uname -r)
+endif
# Header directory for the running kernel
ifdef LINUXINCLUDE
--- a/vmnet/userif.c
+++ b/vmnet/userif.c
@@ -137,16 +137,21 @@
*/
static INLINE int
-VNetUserIfMapPtr(VA uAddr, // IN: pointer to user memory
+VNetUserIfMapPtr(VA64 uAddr, // IN: pointer to user memory
size_t size, // IN: size of data
struct page **p, // OUT: locked page
void **ptr) // OUT: kernel mapped pointer
{
- if (!access_ok(VERIFY_WRITE, (void *)uAddr, size) ||
- (((uAddr + size - 1) & ~(PAGE_SIZE - 1)) !=
- (uAddr & ~(PAGE_SIZE - 1)))) {
+ uint8 v;
+
+ /* Check area does not straddle two pages. */
+ if ((uAddr & (PAGE_SIZE - 1)) + size > PAGE_SIZE) {
return -EINVAL;
}
+ /* Check if it is user's area. UserifLockPage() checks writability. */
+ if (copy_from_user(&v, (void *)(unsigned long)uAddr, sizeof v) != 0) {
+ return -EFAULT;
+ }
*p = UserifLockPage(uAddr);
if (*p == NULL) {
@@ -158,7 +163,7 @@
}
static INLINE int
-VNetUserIfMapUint32Ptr(VA uAddr, // IN: pointer to user memory
+VNetUserIfMapUint32Ptr(VA64 uAddr, // IN: pointer to user memory
struct page **p, // OUT: locked page
uint32 **ptr) // OUT: kernel mapped pointer
{
@@ -201,7 +206,7 @@
return -EBUSY;
}
- if ((retval = VNetUserIfMapUint32Ptr((VA)vn->pollPtr, &pollPage,
+ if ((retval = VNetUserIfMapUint32Ptr(vn->pollPtr, &pollPage,
&pollPtr)) < 0) {
return retval;
}
@@ -213,7 +218,7 @@
goto error_free;
}
- if ((retval = VNetUserIfMapUint32Ptr((VA)vn->recvClusterPtr,
+ if ((retval = VNetUserIfMapUint32Ptr(vn->recvClusterPtr,
&recvClusterPage,
&recvClusterCount)) < 0) {
goto error_free;
From 8ba37a5023f939ba8d2e0d91b916ff442b1c18dd Mon Sep 17 00:00:00 2001
From: Michal Kubecek <mkubecek@suse.cz>
Date: Mon, 31 Dec 2018 00:05:42 +0100
Subject: [PATCH] modules: replace SUBDIRS with M
Since commit 0126be38d988 ("kbuild: announce removal of SUBDIRS if used")
in v5.0-rc1, using SUBDIRS when building out of tree modules produces
a deprecation warning. As M used to work since pretty much ever, use it
unconditionally.
---
vmmon-only/Makefile | 2 +-
vmnet-only/Makefile | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/vmnet-only/Makefile b/vmnet-only/Makefile
index caab6b9..c2fc51f 100644
--- a/vmnet-only/Makefile
+++ b/vmnet-only/Makefile
@@ -111,7 +111,7 @@ prebuild:: ;
postbuild:: ;
$(DRIVER_KO): prebuild
- $(MAKE) -C $(BUILD_DIR) SUBDIRS=$$PWD SRCROOT=$$PWD/$(SRCROOT) \
+ $(MAKE) -C $(BUILD_DIR) M=$$PWD SRCROOT=$$PWD/$(SRCROOT) \
MODULEBUILDDIR=$(MODULEBUILDDIR) modules
$(MAKE) -C $$PWD SRCROOT=$$PWD/$(SRCROOT) \
MODULEBUILDDIR=$(MODULEBUILDDIR) postbuild
|