userns: Convert EVM to deal with kuids and kgids in it's hmac computation

Cc: Mimi Zohar <zohar@us.ibm.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

diff --git a/init/Kconfig b/init/Kconfig
index 8450442da6cd1b6d4b620f788a2b4065a00e6e14..96ee3f32fe3638f978b42d63d572904bfc5e1b58 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -926,7 +926,6 @@ config UIDGID_CONVERTED
        # List of kernel pieces that need user namespace work
        # Features
        depends on IMA = n
-       depends on EVM = n
 
        # Networking
        depends on NET_9P = n

diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
index 49a464f5595b99f46a52da35bb331f546082b31f..dfb26918699c5be5cffcfe4f37295914561096d4 100644 (file)
--- a/security/integrity/evm/evm_crypto.c
+++ b/security/integrity/evm/evm_crypto.c
@@ -106,8 +106,8 @@ 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 = inode->i_uid;
-       hmac_misc.gid = inode->i_gid;
+       hmac_misc.uid = from_kuid(&init_user_ns, inode->i_uid);
+       hmac_misc.gid = from_kgid(&init_user_ns, inode->i_gid);
        hmac_misc.mode = inode->i_mode;
        crypto_shash_update(desc, (const u8 *)&hmac_misc, sizeof hmac_misc);
        crypto_shash_final(desc, digest);