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Diffstat (limited to 'security/integrity/ima/ima_appraise.c')
-rw-r--r--security/integrity/ima/ima_appraise.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 084c19e45668..ea1245606a14 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -251,6 +251,7 @@ int ima_appraise_measurement(enum ima_hooks func,
status = INTEGRITY_FAIL;
break;
}
+ clear_bit(IMA_DIGSIG, &iint->atomic_flags);
if (xattr_len - sizeof(xattr_value->type) - hash_start >=
iint->ima_hash->length)
/* xattr length may be longer. md5 hash in previous
@@ -269,7 +270,7 @@ int ima_appraise_measurement(enum ima_hooks func,
status = INTEGRITY_PASS;
break;
case EVM_IMA_XATTR_DIGSIG:
- iint->flags |= IMA_DIGSIG;
+ set_bit(IMA_DIGSIG, &iint->atomic_flags);
rc = integrity_digsig_verify(INTEGRITY_KEYRING_IMA,
(const char *)xattr_value, rc,
iint->ima_hash->digest,
@@ -320,7 +321,7 @@ void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file)
int rc = 0;
/* do not collect and update hash for digital signatures */
- if (iint->flags & IMA_DIGSIG)
+ if (test_bit(IMA_DIGSIG, &iint->atomic_flags))
return;
if (iint->ima_file_status != INTEGRITY_PASS)
@@ -330,7 +331,9 @@ void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file)
if (rc < 0)
return;
+ inode_lock(file_inode(file));
ima_fix_xattr(dentry, iint);
+ inode_unlock(file_inode(file));
}
/**
@@ -353,16 +356,14 @@ void ima_inode_post_setattr(struct dentry *dentry)
return;
must_appraise = ima_must_appraise(inode, MAY_ACCESS, POST_SETATTR);
+ if (!must_appraise)
+ __vfs_removexattr(dentry, XATTR_NAME_IMA);
iint = integrity_iint_find(inode);
if (iint) {
- iint->flags &= ~(IMA_APPRAISE | IMA_APPRAISED |
- IMA_APPRAISE_SUBMASK | IMA_APPRAISED_SUBMASK |
- IMA_ACTION_RULE_FLAGS);
- if (must_appraise)
- iint->flags |= IMA_APPRAISE;
+ set_bit(IMA_CHANGE_ATTR, &iint->atomic_flags);
+ if (!must_appraise)
+ clear_bit(IMA_UPDATE_XATTR, &iint->atomic_flags);
}
- if (!must_appraise)
- __vfs_removexattr(dentry, XATTR_NAME_IMA);
}
/*
@@ -391,12 +392,12 @@ static void ima_reset_appraise_flags(struct inode *inode, int digsig)
iint = integrity_iint_find(inode);
if (!iint)
return;
-
- iint->flags &= ~IMA_DONE_MASK;
iint->measured_pcrs = 0;
+ set_bit(IMA_CHANGE_XATTR, &iint->atomic_flags);
if (digsig)
- iint->flags |= IMA_DIGSIG;
- return;
+ set_bit(IMA_DIGSIG, &iint->atomic_flags);
+ else
+ clear_bit(IMA_DIGSIG, &iint->atomic_flags);
}
int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,