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perf daemon: Use zfree() to reduce chances of use after free
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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1 changed files with 7 additions and 7 deletions
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@ -193,7 +193,7 @@ static int session_config(struct daemon *daemon, const char *var, const char *va
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if (!same) {
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if (session->run) {
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free(session->run);
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zfree(&session->run);
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pr_debug("reconfig: session %s is changed\n", name);
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}
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@ -924,9 +924,9 @@ static void daemon__signal(struct daemon *daemon, int sig)
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static void daemon_session__delete(struct daemon_session *session)
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{
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free(session->base);
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free(session->name);
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free(session->run);
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zfree(&session->base);
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zfree(&session->name);
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zfree(&session->run);
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free(session);
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}
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@ -975,9 +975,9 @@ static void daemon__exit(struct daemon *daemon)
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list_for_each_entry_safe(session, h, &daemon->sessions, list)
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daemon_session__remove(session);
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free(daemon->config_real);
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free(daemon->config_base);
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free(daemon->base);
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zfree(&daemon->config_real);
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zfree(&daemon->config_base);
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zfree(&daemon->base);
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}
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static int daemon__reconfig(struct daemon *daemon)
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