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| author | Jason Hrycay <jhrycay@gmail.com> | 2013-05-31 12:45:11 -0500 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 11:43:49 +0900 |
| commit | 13be0c17d490290ff5222e3000c1738a8c845333 (patch) | |
| tree | c8ee51503b5fc38bf2036e510744323ae033253e /fs/f2fs | |
| parent | f4d659629dfdd8be15b50a0e782e7f62614eee8b (diff) | |
| download | linux-3.10-13be0c17d490290ff5222e3000c1738a8c845333.tar.gz linux-3.10-13be0c17d490290ff5222e3000c1738a8c845333.tar.bz2 linux-3.10-13be0c17d490290ff5222e3000c1738a8c845333.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>
Diffstat (limited to 'fs/f2fs')
| -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 0b02dce3135..ae61f359554 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) { |