[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 7efa73d..20d4b22 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -103,8 +103,8 @@
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 135871d..4b47a02 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -79,7 +79,7 @@
struct vmcore {
struct list_head list;
unsigned long long paddr;
- unsigned long size;
+ unsigned long long size;
loff_t offset;
};
