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From cc978a670597afc3251baca3a7db553f36946c22 Mon Sep 17 00:00:00 2001
From: Chet Ramey <chet.ramey@case.edu>
Date: Tue, 4 May 2021 14:29:06 -0400
Subject: [PATCH] Bash-5.1 patch 5: fix memory leaks in compound array
assignments
---
arrayfunc.c | 11 +++--------
patchlevel.h | 2 +-
subst.c | 2 ++
3 files changed, 6 insertions(+), 9 deletions(-)
diff --git a/arrayfunc.c b/arrayfunc.c
index 8231ba1e..9338dfc7 100644
--- a/arrayfunc.c
+++ b/arrayfunc.c
@@ -564,12 +564,9 @@ assign_assoc_from_kvlist (var, nlist, h, flags)
{
WORD_LIST *list;
char *akey, *aval, *k, *v;
- int free_aval;
for (list = nlist; list; list = list->next)
{
- free_aval = 0;
-
k = list->word->word;
v = list->next ? list->next->word->word : 0;
@@ -577,24 +574,22 @@ assign_assoc_from_kvlist (var, nlist, h, flags)
list = list->next;
akey = expand_assignment_string_to_string (k, 0);
- aval = expand_assignment_string_to_string (v, 0);
-
if (akey == 0 || *akey == 0)
{
err_badarraysub (k);
FREE (akey);
continue;
}
+
+ aval = expand_assignment_string_to_string (v, 0);
if (aval == 0)
{
aval = (char *)xmalloc (1);
aval[0] = '\0'; /* like do_assignment_internal */
- free_aval = 1;
}
bind_assoc_var_internal (var, h, akey, aval, flags);
- if (free_aval)
- free (aval);
+ free (aval);
}
}
diff --git a/patchlevel.h b/patchlevel.h
index e1429c24..c7f39aec 100644
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 4
+#define PATCHLEVEL 5
#endif /* _PATCHLEVEL_H_ */
diff --git a/subst.c b/subst.c
index 6132316a..1d24188e 100644
--- a/subst.c
+++ b/subst.c
@@ -11673,6 +11673,8 @@ expand_compound_assignment_word (tlist, flags)
free (value);
value = string_list (l);
+ dispose_words (l);
+
wlen = STRLEN (value);
/* Now, let's rebuild the string */
--
2.29.2