mirror of
https://github.com/Fishwaldo/Star64_linux.git
synced 2025-03-16 04:04:06 +00:00
ubifs: report correct st_size for encrypted symlinks
commit064c734986
upstream. The stat() family of syscalls report the wrong size for encrypted symlinks, which has caused breakage in several userspace programs. Fix this by calling fscrypt_symlink_getattr() after ubifs_getattr() for encrypted symlinks. This function computes the correct size by reading and decrypting the symlink target (if it's not already cached). For more details, see the commit which added fscrypt_symlink_getattr(). Fixes:ca7f85be8d
("ubifs: Add support for encrypted symlinks") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210702065350.209646-5-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
753ffce103
commit
8a5c56c2bd
1 changed files with 12 additions and 1 deletions
|
@ -1630,6 +1630,17 @@ static const char *ubifs_get_link(struct dentry *dentry,
|
|||
return fscrypt_get_symlink(inode, ui->data, ui->data_len, done);
|
||||
}
|
||||
|
||||
static int ubifs_symlink_getattr(struct user_namespace *mnt_userns,
|
||||
const struct path *path, struct kstat *stat,
|
||||
u32 request_mask, unsigned int query_flags)
|
||||
{
|
||||
ubifs_getattr(mnt_userns, path, stat, request_mask, query_flags);
|
||||
|
||||
if (IS_ENCRYPTED(d_inode(path->dentry)))
|
||||
return fscrypt_symlink_getattr(path, stat);
|
||||
return 0;
|
||||
}
|
||||
|
||||
const struct address_space_operations ubifs_file_address_operations = {
|
||||
.readpage = ubifs_readpage,
|
||||
.writepage = ubifs_writepage,
|
||||
|
@ -1655,7 +1666,7 @@ const struct inode_operations ubifs_file_inode_operations = {
|
|||
const struct inode_operations ubifs_symlink_inode_operations = {
|
||||
.get_link = ubifs_get_link,
|
||||
.setattr = ubifs_setattr,
|
||||
.getattr = ubifs_getattr,
|
||||
.getattr = ubifs_symlink_getattr,
|
||||
.listxattr = ubifs_listxattr,
|
||||
.update_time = ubifs_update_time,
|
||||
};
|
||||
|
|
Loading…
Add table
Reference in a new issue