From: Roberto Sassu <roberto.sassu@huawei.com>
To: <zohar@linux.ibm.com>, <dmitry.kasatkin@huawei.com>, <mjg59@google.com>
Cc: <linux-integrity@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<linux-security-module@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <silviu.vlasceanu@huawei.com>,
Roberto Sassu <roberto.sassu@huawei.com>,
<stable@vger.kernel.org>
Subject: [PATCH 2/4] evm: reset status in evm_inode_post_setattr()
Date: Thu, 16 May 2019 18:12:55 +0200 [thread overview]
Message-ID: <20190516161257.6640-2-roberto.sassu@huawei.com> (raw)
In-Reply-To: <20190516161257.6640-1-roberto.sassu@huawei.com>
This patch adds a call to evm_reset_status() in evm_inode_post_setattr(),
before security.evm is updated. The same is done in the other
evm_inode_post_* functions.
Fixes: 523b74b16bcbb ("evm: reset EVM status when file attributes change")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: stable@vger.kernel.org
---
security/integrity/evm/evm_main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index b6d9f14bc234..b41c2d8a8834 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -512,8 +512,11 @@ void evm_inode_post_setattr(struct dentry *dentry, int ia_valid)
if (!evm_key_loaded())
return;
- if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID))
+ if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID)) {
+ evm_reset_status(dentry->d_inode);
+
evm_update_evmxattr(dentry, NULL, NULL, 0);
+ }
}
/*
--
2.17.1
next prev parent reply other threads:[~2019-05-16 16:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-16 16:12 [PATCH 1/4] evm: check hash algorithm passed to init_desc() Roberto Sassu
2019-05-16 16:12 ` Roberto Sassu [this message]
2019-05-20 21:19 ` [PATCH 2/4] evm: reset status in evm_inode_post_setattr() Mimi Zohar
2019-05-16 16:12 ` [PATCH 3/4] ima: don't ignore INTEGRITY_UNKNOWN EVM status Roberto Sassu
[not found] ` <20190517001001.9BEF620848@mail.kernel.org>
2019-05-17 0:30 ` Mimi Zohar
2019-05-17 1:07 ` Sasha Levin
2019-05-20 21:20 ` Mimi Zohar
2019-05-21 7:26 ` Roberto Sassu
2019-05-21 11:48 ` Mimi Zohar
2019-05-16 16:12 ` [PATCH 4/4] ima: only audit failed appraisal verifications Roberto Sassu
2019-05-20 21:20 ` Mimi Zohar
2019-05-21 7:32 ` Roberto Sassu
2019-05-20 21:19 ` [PATCH 1/4] evm: check hash algorithm passed to init_desc() Mimi Zohar
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