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| author | Jason Hrycay <jhrycay@gmail.com> | 2013-05-31 12:45:11 -0500 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-06-03 19:49:09 +0900 |
| commit | 1e03e38b35b8e72d65fd5d931627bd6ff02926c1 (patch) | |
| tree | e8da576270efe341f63e1e5bd2cc033631dc84cf | |
| parent | 83d5d6f66b375f21bee4c2e17178f7c073a66301 (diff) | |
| download | linux-1e03e38b35b8e72d65fd5d931627bd6ff02926c1.tar.gz linux-1e03e38b35b8e72d65fd5d931627bd6ff02926c1.tar.bz2 linux-1e03e38b35b8e72d65fd5d931627bd6ff02926c1.zip | |
f2fs: handle errors from get_node_page calls
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>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
| -rw-r--r-- | fs/f2fs/xattr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index 0b02dce31356..ae61f359554f 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) { |