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From 893949167bdb911c7db9fd59de85f288c09741e1 Mon Sep 17 00:00:00 2001
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From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
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Date: Sat, 15 Sep 2018 09:59:14 +0000
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Subject: [PATCH] Fix issues detected by code analysis tool (mainly Coverity).
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* Fix leaked storage in addr2line.c.
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* Fix for "top_root" leaking the resource.
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[Fix GH-1956]
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From: Jun Aruga <jaruga@redhat.com>
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64750 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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---
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addr2line.c | 8 ++++++--
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regcomp.c | 3 +++
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2 files changed, 9 insertions(+), 2 deletions(-)
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diff --git a/addr2line.c b/addr2line.c
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index 2c422cc1697a..b266e44d5d4b 100644
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--- a/addr2line.c
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+++ b/addr2line.c
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@@ -593,11 +593,12 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
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h = dlopen(NULL, RTLD_NOW|RTLD_LOCAL);
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if (!h) continue;
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s = dlsym(h, strtab + sym->st_name);
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- if (!s) continue;
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- if (dladdr(s, &info)) {
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+ if (s && dladdr(s, &info)) {
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dladdr_fbase = (uintptr_t)info.dli_fbase;
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+ dlclose(h);
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break;
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}
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+ dlclose(h);
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}
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if (ehdr->e_type == ET_EXEC) {
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obj->base_addr = 0;
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@@ -655,6 +656,9 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
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finish:
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return dladdr_fbase;
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fail:
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+ if (file != NULL) {
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+ munmap(file, (size_t)filesize);
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+ }
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return (uintptr_t)-1;
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}
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diff --git a/regcomp.c b/regcomp.c
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index 0f6bee60d576..df7f73bac501 100644
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--- a/regcomp.c
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+++ b/regcomp.c
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@@ -3596,6 +3596,7 @@ expand_case_fold_string(Node* node, regex_t* reg)
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if (n == 0 || varlen == 0) {
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if (IS_NULL(snode)) {
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if (IS_NULL(root) && IS_NOT_NULL(prev_node)) {
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+ onig_node_free(top_root);
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top_root = root = onig_node_list_add(NULL_NODE, prev_node);
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if (IS_NULL(root)) {
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onig_node_free(prev_node);
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@@ -3627,6 +3628,7 @@ expand_case_fold_string(Node* node, regex_t* reg)
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}
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}
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if (IS_NULL(root) && IS_NOT_NULL(prev_node)) {
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+ onig_node_free(top_root);
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top_root = root = onig_node_list_add(NULL_NODE, prev_node);
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if (IS_NULL(root)) {
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onig_node_free(prev_node);
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@@ -3677,6 +3679,7 @@ expand_case_fold_string(Node* node, regex_t* reg)
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if (r != 0) goto mem_err;
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if (IS_NOT_NULL(prev_node) && IS_NULL(root)) {
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+ onig_node_free(top_root);
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top_root = root = onig_node_list_add(NULL_NODE, prev_node);
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if (IS_NULL(root)) {
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onig_node_free(srem);
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--
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2.21.0
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