[PATCH v5 1/5] IMA: remove the dependency on CRYPTO_MD5
From: THOBY Simon <hidden>
Date: 2021-07-28 13:21:27
Subsystem:
extended verification module (evm), integrity measurement architecture (ima), security subsystem, the rest · Maintainers:
Mimi Zohar, Roberto Sassu, Dmitry Kasatkin, Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds
Remove the CRYPTO_MD5 dependency for IMA, as it is not necessary and it hinders the efficiency of a patchset that limit the digests allowed for the security.ima xattr. Signed-off-by: Simon Thoby <redacted> --- security/integrity/ima/Kconfig | 1 - security/integrity/ima/ima_main.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index d0ceada99243..f3a9cc201c8c 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig@@ -6,7 +6,6 @@ config IMA select SECURITYFS select CRYPTO select CRYPTO_HMAC - select CRYPTO_MD5 select CRYPTO_SHA1 select CRYPTO_HASH_INFO select TCG_TPM if HAS_IOMEM && !UML
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 287b90509006..7f2310f29789 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c@@ -53,7 +53,7 @@ static int __init hash_setup(char *str) if (strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) == 0) { if (strncmp(str, "sha1", 4) == 0) { ima_hash_algo = HASH_ALGO_SHA1; - } else if (strncmp(str, "md5", 3) == 0) { + } else if (IS_ENABLED(CONFIG_CRYPTO_MD5) && strncmp(str, "md5", 3) == 0) { ima_hash_algo = HASH_ALGO_MD5; } else { pr_err("invalid hash algorithm \"%s\" for template \"%s\"",
--
2.31.1