From cdf2875a61e72c6d115bab1309da7e44b6f71874 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ciro=20Santilli=20=E5=85=AD=E5=9B=9B=E4=BA=8B=E4=BB=B6=20?=
 =?UTF-8?q?=E6=B3=95=E8=BD=AE=E5=8A=9F?= <ciro.santilli@gmail.com>
Date: Thu, 23 Jul 2020 01:00:00 +0000
Subject: [PATCH] pagemap.h: fix missing pread offset

Fix https://github.com/cirosantilli/linux-kernel-module-cheat/issues/125
---
 README.adoc    | 5 ++++-
 lkmc/pagemap.h | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/README.adoc b/README.adoc
index dbea908..4b49a84 100644
--- a/README.adoc
+++ b/README.adoc
@@ -8173,7 +8173,10 @@ vaddr pfn soft-dirty file/shared swapped present library
 7ffff78ec000 1fd4 0 1 0 1 /lib/libuClibc-1.0.30.so
 ....
 
-Source: link:userland/linux/pagemap_dump.c[]
+Source:
+
+* link:userland/linux/pagemap_dump.c[]
+* link:lkmc/pagemap.h[]
 
 Adapted from: https://github.com/dwks/pagemap/blob/8a25747bc79d6080c8b94eac80807a4dceeda57a/pagemap2.c
 
diff --git a/lkmc/pagemap.h b/lkmc/pagemap.h
index 53921be..ddba470 100644
--- a/lkmc/pagemap.h
+++ b/lkmc/pagemap.h
@@ -37,7 +37,7 @@ int lkmc_pagemap_get_entry(LkmcPagemapEntry *entry, int pagemap_fd, uintptr_t va
     while (nread < sizeof(data)) {
         ret = pread(
             pagemap_fd,
-            &data,
+            ((uint8_t*)&data) + nread,
             sizeof(data) - nread,
             vpn * sizeof(data) + nread
         );