Merge tag 'pull_error_handle_fix_use_after_free.v1' of https://github.com/stefanberger/qemu-tpm into staging
Fix use-after-free in util/error.c
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* tag 'pull_error_handle_fix_use_after_free.v1' of https://github.com/stefanberger/qemu-tpm:
util/error: Fix use-after-free errors reported by Coverity
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/util/error.c b/util/error.c
index 5537245..e5e2472 100644
--- a/util/error.c
+++ b/util/error.c
@@ -46,6 +46,10 @@
}
if (errp == &error_warn) {
warn_report_err(err);
+ } else if (errp && !*errp) {
+ *errp = err;
+ } else {
+ error_free(err);
}
}
@@ -76,7 +80,6 @@
err->func = func;
error_handle(errp, err);
- *errp = err;
errno = saved_errno;
}
@@ -289,11 +292,6 @@
return;
}
error_handle(dst_errp, local_err);
- if (dst_errp && !*dst_errp) {
- *dst_errp = local_err;
- } else {
- error_free(local_err);
- }
}
void error_propagate_prepend(Error **dst_errp, Error *err,
