ima: Use kmemdup rather than kmalloc+memcpy (f60c826d) · Commits · 戴 / test

security/integrity/ima/ima_policy.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -353,15 +353,14 @@ static struct ima_rule_entry ima_lsm_copy_rule(struct ima_rule_entry entry)
		struct ima_rule_entry *nentry;
		int i;

		nentry = kmalloc(sizeof(*nentry), GFP_KERNEL);
		if (!nentry)
		return NULL;

		/*
		* Immutable elements are copied over as pointers and data; only
		* lsm rules can change
		*/
		memcpy(nentry, entry, sizeof(*nentry));
		nentry = kmemdup(entry, sizeof(*nentry), GFP_KERNEL);
		if (!nentry)
		return NULL;

		memset(nentry->lsm, 0, sizeof_field(struct ima_rule_entry, lsm));

		for (i = 0; i < MAX_LSM_RULES; i++) {