From: Vivek Goyal <vgoyal@in.ibm.com>
Date: Tue, 11 Apr 2006 05:54:10 +0000 (-0700)
Subject: [PATCH] kdump proc vmcore size oveflow fix
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=80e8ff634169be3fc2ac48f258cc7638e898cd46;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[PATCH] kdump proc vmcore size oveflow fix

A couple of /proc/vmcore data structures overflow with 32bit systems having
memory more than 4G.  This patch fixes those.

Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 7efa73d44c9..20d4b2237fc 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -103,8 +103,8 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
 				size_t buflen, loff_t *fpos)
 {
 	ssize_t acc = 0, tmp;
-	size_t tsz, nr_bytes;
-	u64 start;
+	size_t tsz;
+	u64 start, nr_bytes;
 	struct vmcore *curr_m = NULL;
 
 	if (buflen == 0 || *fpos >= vmcore_size)
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 135871df991..4b47a025342 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -79,7 +79,7 @@ struct kcore_list {
 struct vmcore {
 	struct list_head list;
 	unsigned long long paddr;
-	unsigned long size;
+	unsigned long long size;
 	loff_t offset;
 };