Merge branch 'tt/misc' into dev

This commit is contained in:
Theodore Ts'o
2019-11-19 12:25:42 -05:00
3 changed files with 32 additions and 15 deletions

View File

@@ -5580,8 +5580,23 @@ static int __ext4_expand_extra_isize(struct inode *inode,
{
struct ext4_inode *raw_inode;
struct ext4_xattr_ibody_header *header;
unsigned int inode_size = EXT4_INODE_SIZE(inode->i_sb);
struct ext4_inode_info *ei = EXT4_I(inode);
int error;
/* this was checked at iget time, but double check for good measure */
if ((EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize > inode_size) ||
(ei->i_extra_isize & 3)) {
EXT4_ERROR_INODE(inode, "bad extra_isize %u (inode size %u)",
ei->i_extra_isize,
EXT4_INODE_SIZE(inode->i_sb));
return -EFSCORRUPTED;
}
if ((new_extra_isize < ei->i_extra_isize) ||
(new_extra_isize < 4) ||
(new_extra_isize > inode_size - EXT4_GOOD_OLD_INODE_SIZE))
return -EINVAL; /* Should never happen */
raw_inode = ext4_raw_inode(iloc);
header = IHDR(inode, raw_inode);