AuxXxilium/linux_dsm_epyc7002
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epyc7002
linux_dsm_epyc7002/security/integrity
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THOBY Simon 7b2e93207c IMA: remove the dependency on CRYPTO_MD5 
commit 8510505d55e194d3f6c9644c9f9d12c4f6b0395a upstream.

MD5 is a weak digest algorithm that shouldn't be used for cryptographic
operation. It hinders the efficiency of a patch set that aims to limit
the digests allowed for the extended file attribute namely security.ima.
MD5 is no longer a requirement for IMA, nor should it be used there.

The sole place where we still use the MD5 algorithm inside IMA is setting
the ima_hash algorithm to MD5, if the user supplies 'ima_hash=md5'
parameter on the command line.  With commit ab60368ab6 ("ima: Fallback
to the builtin hash algorithm"), setting "ima_hash=md5" fails gracefully
when CRYPTO_MD5 is not set:
	ima: Can not allocate md5 (reason: -2)
	ima: Allocating md5 failed, going to use default hash algorithm sha256

Remove the CRYPTO_MD5 dependency for IMA.

Signed-off-by: THOBY Simon <Simon.THOBY@viveris.fr>
Reviewed-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
[zohar@linux.ibm.com: include commit number in patch description for
stable.]
Cc: stable@vger.kernel.org # 4.17
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-05 19:13:55 +02:00
..
evm evm: fix writing <securityfs>/evm overflow 2021-07-14 16:56:04 +02:00
ima IMA: remove the dependency on CRYPTO_MD5 2024-07-05 19:13:55 +02:00
platform_certs integrity: Load mokx variables into the blacklist keyring 2021-06-30 08:47:30 -04:00
digsig_asymmetric.c integrity-v5.10 2020-10-15 15:58:18 -07:00
digsig.c fs/kernel_file_read: Add "offset" arg for partial reads 2020-10-05 13:37:04 +02:00
iint.c integrity: double check iint_cache was initialized 2021-03-30 14:31:55 +02:00
integrity_audit.c integrity: Use current_uid() in integrity_audit_message() 2020-08-31 17:46:50 -04:00
integrity.h integrity: Add errno field in audit message 2020-07-16 21:48:11 -04:00
Kconfig powerpc: Load firmware trusted keys/hashes into kernel keyring 2019-11-13 00:33:23 +11:00
Makefile powerpc: Load firmware trusted keys/hashes into kernel keyring 2019-11-13 00:33:23 +11:00