diff options
Diffstat (limited to 'security/integrity/ima')
-rw-r--r-- | security/integrity/ima/ima.h | 1 | ||||
-rw-r--r-- | security/integrity/ima/ima_api.c | 21 | ||||
-rw-r--r-- | security/integrity/ima/ima_init.c | 3 |
3 files changed, 19 insertions, 6 deletions
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h index 9636e17c9f5..0356e1d437c 100644 --- a/security/integrity/ima/ima.h +++ b/security/integrity/ima/ima.h @@ -148,6 +148,7 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint, int xattr_len, struct ima_template_entry **entry); int ima_store_template(struct ima_template_entry *entry, int violation, struct inode *inode, const unsigned char *filename); +void ima_free_template_entry(struct ima_template_entry *entry); const char *ima_d_path(struct path *path, char **pathbuf); /* rbtree tree calls to lookup, insert, delete diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c index 80374842fe0..c38bbce8c6a 100644 --- a/security/integrity/ima/ima_api.c +++ b/security/integrity/ima/ima_api.c @@ -22,6 +22,19 @@ #include "ima.h" /* + * ima_free_template_entry - free an existing template entry + */ +void ima_free_template_entry(struct ima_template_entry *entry) +{ + int i; + + for (i = 0; i < entry->template_desc->num_fields; i++) + kfree(entry->template_data[i].data); + + kfree(entry); +} + +/* * ima_alloc_init_template - create and initialize a new template entry */ int ima_alloc_init_template(struct integrity_iint_cache *iint, @@ -37,6 +50,7 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint, if (!*entry) return -ENOMEM; + (*entry)->template_desc = template_desc; for (i = 0; i < template_desc->num_fields; i++) { struct ima_template_field *field = template_desc->fields[i]; u32 len; @@ -51,10 +65,9 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint, (*entry)->template_data_len += sizeof(len); (*entry)->template_data_len += len; } - (*entry)->template_desc = template_desc; return 0; out: - kfree(*entry); + ima_free_template_entry(*entry); *entry = NULL; return result; } @@ -134,7 +147,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename, } result = ima_store_template(entry, violation, inode, filename); if (result < 0) - kfree(entry); + ima_free_template_entry(entry); err_out: integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename, op, cause, result, 0); @@ -269,7 +282,7 @@ void ima_store_measurement(struct integrity_iint_cache *iint, if (!result || result == -EEXIST) iint->flags |= IMA_MEASURED; if (result < 0) - kfree(entry); + ima_free_template_entry(entry); } void ima_audit_measurement(struct integrity_iint_cache *iint, diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c index 15f34bd40ab..37122768554 100644 --- a/security/integrity/ima/ima_init.c +++ b/security/integrity/ima/ima_init.c @@ -63,7 +63,6 @@ static void __init ima_add_boot_aggregate(void) result = ima_calc_boot_aggregate(&hash.hdr); if (result < 0) { audit_cause = "hashing_error"; - kfree(entry); goto err_out; } } @@ -76,7 +75,7 @@ static void __init ima_add_boot_aggregate(void) result = ima_store_template(entry, violation, NULL, boot_aggregate_name); if (result < 0) - kfree(entry); + ima_free_template_entry(entry); return; err_out: integrity_audit_msg(AUDIT_INTEGRITY_PCR, NULL, boot_aggregate_name, op, |