Messages in this thread Patch in this message | | | Date | Fri, 31 May 2013 12:45:11 -0500 | From | Jason Hrycay <> | Subject | f2fs: handle errors from get_node_page calls |
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Add check for error pointers returned from get_node_page in order to avoid dereferencing a bad address on the next use.
Signed-off-by: Jason Hrycay <jason.hrycay@motorola.com> --- fs/f2fs/xattr.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index 0b02dce..ae61f35 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -218,6 +218,8 @@ int f2fs_getxattr(struct inode *inode, int name_index, const char *name, return -ENODATA;
page = get_node_page(sbi, fi->i_xattr_nid); + if (IS_ERR(page)) + return PTR_ERR(page); base_addr = page_address(page);
list_for_each_xattr(entry, base_addr) { @@ -268,6 +270,8 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size) return 0;
page = get_node_page(sbi, fi->i_xattr_nid); + if (IS_ERR(page)) + return PTR_ERR(page); base_addr = page_address(page);
list_for_each_xattr(entry, base_addr) { -- 1.8.0
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