diff options
| author |   Seth Forshee <seth.forshee@canonical.com> | 2015-02-05 10:44:50 -0600 |
|---|---|---|
| committer |   Eric W. Biederman <ebiederm@xmission.com> | 2016-07-05 15:13:10 -0500 |
| commit | 0b3c9761d1e405514a551ed24d3ea89aea26ce14 (patch) | |
| tree | 89788915d79a0a32b078780ab9181e3c76a13200 /security | |
| parent | dquot: For now explicitly don't support filesystems outside of init_user_ns (diff) | |
| download | linux-dev-0b3c9761d1e405514a551ed24d3ea89aea26ce14.tar.xz linux-dev-0b3c9761d1e405514a551ed24d3ea89aea26ce14.zip | |
evm: Translate user/group ids relative to s_user_ns when computing HMAC
The EVM HMAC should be calculated using the on disk user and
group ids, so the k[ug]ids in the inode must be translated
relative to the s_user_ns of the inode's super block.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'security')
| -rw-r--r-- | security/integrity/evm/evm_crypto.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c index 30b6b7d0429f..11c1d30bd705 100644 --- a/security/integrity/evm/evm_crypto.c +++ b/security/integrity/evm/evm_crypto.c @@ -151,8 +151,8 @@ static void hmac_add_misc(struct shash_desc *desc, struct inode *inode, memset(&hmac_misc, 0, sizeof(hmac_misc)); hmac_misc.ino = inode->i_ino; hmac_misc.generation = inode->i_generation; - hmac_misc.uid = from_kuid(&init_user_ns, inode->i_uid); - hmac_misc.gid = from_kgid(&init_user_ns, inode->i_gid); + hmac_misc.uid = from_kuid(inode->i_sb->s_user_ns, inode->i_uid); + hmac_misc.gid = from_kgid(inode->i_sb->s_user_ns, inode->i_gid); hmac_misc.mode = inode->i_mode; crypto_shash_update(desc, (const u8 *)&hmac_misc, sizeof(hmac_misc)); if (evm_hmac_attrs & EVM_ATTR_FSUUID) |