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authorOleg Drokin <green@linuxhacker.ru>2005-11-23 13:37:47 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-23 16:08:39 -0800
commit479ef592f3664dd629417098c8599261c0f689ab (patch)
tree616270b5c79cc3ef5f1fba683f1913f4bea74f47
parent02b7068221eed702a37527fa2da4d63a27b3126a (diff)
[PATCH] 32bit integer overflow in invalidate_inode_pages2()
Fix a 32 bit integer overflow in invalidate_inode_pages2_range. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--mm/truncate.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/truncate.c b/mm/truncate.c
index 29c18f68dc35..9173ab500604 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -282,8 +282,8 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
* Zap the rest of the file in one hit.
*/
unmap_mapping_range(mapping,
- page_index << PAGE_CACHE_SHIFT,
- (end - page_index + 1)
+ (loff_t)page_index<<PAGE_CACHE_SHIFT,
+ (loff_t)(end - page_index + 1)
<< PAGE_CACHE_SHIFT,
0);
did_range_unmap = 1;
@@ -292,7 +292,7 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
* Just zap this page
*/
unmap_mapping_range(mapping,
- page_index << PAGE_CACHE_SHIFT,
+ (loff_t)page_index<<PAGE_CACHE_SHIFT,
PAGE_CACHE_SIZE, 0);
}
}