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kernel_optimize_test/security/integrity/ima
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THOBY Simon 34d099a330 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>
2021-09-15 09:50:48 +02:00
..
ima_api.c ima: Support additional conditionals in the KEXEC_CMDLINE hook function 2020-07-20 13:28:16 -04:00
ima_appraise.c integrity-v5.10 2020-10-15 15:58:18 -07:00
ima_asymmetric_keys.c ima: Support additional conditionals in the KEXEC_CMDLINE hook function 2020-07-20 13:28:16 -04:00
ima_crypto.c ima: Don't modify file descriptor mode on the fly 2020-12-30 11:54:17 +01:00
ima_fs.c fs/kernel_file_read: Add "offset" arg for partial reads 2020-10-05 13:37:04 +02:00
ima_init.c ima: Call ima_calc_boot_aggregate() in ima_eventdigest_init() 2020-06-03 17:20:43 -04:00
ima_kexec.c ima: Free IMA measurement buffer after kexec syscall 2021-03-04 11:37:50 +01:00
ima_main.c integrity-v5.10 2020-10-15 15:58:18 -07:00
ima_modsig.c ima: Move comprehensive rule validation checks out of the token parser 2020-07-20 13:28:15 -04:00
ima_mok.c IMA: remove -Wmissing-prototypes warning 2021-09-15 09:50:48 +02:00
ima_policy.c integrity-v5.10 2020-10-15 15:58:18 -07:00
ima_queue_keys.c ima: Support additional conditionals in the KEXEC_CMDLINE hook function 2020-07-20 13:28:16 -04:00
ima_queue.c ima: Remove semicolon at the end of ima_get_binary_runtime_size() 2020-09-15 13:47:41 -04:00
ima_template_lib.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ima_template_lib.h Replace HTTP links with HTTPS ones: security 2020-08-06 12:00:05 -07:00
ima_template.c ima: Fix the error code for restoring the PCR value 2021-05-14 09:50:30 +02:00
ima.h ima: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
Kconfig IMA: remove the dependency on CRYPTO_MD5 2021-09-15 09:50:48 +02:00
Makefile IMA: Update KBUILD_MODNAME for IMA files to ima 2020-02-28 14:32:58 -05:00