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[PATCH] kdump proc vmcore size oveflow fix

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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>
This commit is contained in:
Vivek Goyal 2006-04-10 22:54:10 -07:00 committed by Linus Torvalds
parent 4c416ab711
commit 80e8ff6341
2 changed files with 3 additions and 3 deletions
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4
fs/proc/vmcore.c
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@ -103,8 +103,8 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
size_t buflen, loff_t *fpos) size_t buflen, loff_t *fpos)
{ {
ssize_t acc = 0, tmp; ssize_t acc = 0, tmp;
size_t tsz, nr_bytes; size_t tsz;
u64 start; u64 start, nr_bytes;
struct vmcore *curr_m = NULL; struct vmcore *curr_m = NULL;
if (buflen == 0 || *fpos >= vmcore_size) if (buflen == 0 || *fpos >= vmcore_size)

2
include/linux/proc_fs.h
View file

@ -79,7 +79,7 @@ struct kcore_list {
struct vmcore { struct vmcore {
struct list_head list; struct list_head list;
unsigned long long paddr; unsigned long long paddr;
unsigned long size; unsigned long long size;
loff_t offset; loff_t offset;
}; };