diff options
Diffstat (limited to 'fs/hfsplus/xattr.c')
| -rw-r--r-- | fs/hfsplus/xattr.c | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c index e2b3c9ea1c71..c03c94611cce 100644 --- a/fs/hfsplus/xattr.c +++ b/fs/hfsplus/xattr.c @@ -806,47 +806,55 @@ end_removexattr: static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size, int type) { - char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + - XATTR_MAC_OSX_PREFIX_LEN + 1] = {0}; - size_t len = strlen(name); + char *xattr_name; + int res; if (!strcmp(name, "")) return -EINVAL; - if (len > HFSPLUS_ATTR_MAX_STRLEN) - return -EOPNOTSUPP; - /* * Don't allow retrieving properly prefixed attributes * by prepending them with "osx." */ if (is_known_namespace(name)) return -EOPNOTSUPP; + xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL); + if (!xattr_name) + return -ENOMEM; + strcpy(xattr_name, XATTR_MAC_OSX_PREFIX); + strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name); - return hfsplus_getxattr(dentry, xattr_name, buffer, size); + res = hfsplus_getxattr(dentry, xattr_name, buffer, size); + kfree(xattr_name); + return res; } static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name, const void *buffer, size_t size, int flags, int type) { - char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + - XATTR_MAC_OSX_PREFIX_LEN + 1] = {0}; - size_t len = strlen(name); + char *xattr_name; + int res; if (!strcmp(name, "")) return -EINVAL; - if (len > HFSPLUS_ATTR_MAX_STRLEN) - return -EOPNOTSUPP; - /* * Don't allow setting properly prefixed attributes * by prepending them with "osx." */ if (is_known_namespace(name)) return -EOPNOTSUPP; + xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL); + if (!xattr_name) + return -ENOMEM; + strcpy(xattr_name, XATTR_MAC_OSX_PREFIX); + strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name); - return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags); + res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags); + kfree(xattr_name); + return res; } static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list, |