python3.14-lxml/fix-memory-leaks.patch
Charalampos Stratakis 7bfc4337af Fix another memory leak
Related: RHEL-120839
2026-02-16 19:01:31 +01:00

53 lines
1.6 KiB
Diff

From 9abf22ef29816787256605a281e1413bd6063590 Mon Sep 17 00:00:00 2001
From: Stefan Behnel <stefan_ml@behnel.de>
Date: Thu, 4 Dec 2025 11:50:30 +0100
Subject: [PATCH 1/2] Fix a memory leak in the rare case of a memory allocation
error.
---
src/lxml/parser.pxi | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/lxml/parser.pxi b/src/lxml/parser.pxi
index 3106e61..8d53277 100644
--- a/src/lxml/parser.pxi
+++ b/src/lxml/parser.pxi
@@ -2004,6 +2004,7 @@ cdef xmlDoc* _copyDocRoot(xmlDoc* c_doc, xmlNode* c_new_root) except NULL:
with nogil:
c_node = tree.xmlDocCopyNode(c_new_root, result, 1) # recursive
if c_node is NULL:
+ tree.xmlFreeDoc(result)
raise MemoryError()
tree.xmlDocSetRootElement(result, c_node)
_copyTail(c_new_root.next, c_node)
--
2.53.0
From 3f148c66c78cd7c010721e4b49c993b02bf0b8d5 Mon Sep 17 00:00:00 2001
From: Stefan Behnel <stefan_ml@behnel.de>
Date: Sat, 17 Jan 2026 07:21:23 +0100
Subject: [PATCH 2/2] Add missing "noexcept" to fix a memory leak.
Fixes https://bugs.launchpad.net/lxml/+bug/2138421
---
src/lxml/etree.pyx | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/lxml/etree.pyx b/src/lxml/etree.pyx
index 562d95e..50cb71f 100644
--- a/src/lxml/etree.pyx
+++ b/src/lxml/etree.pyx
@@ -657,7 +657,7 @@ cdef class DocInfo:
return root_name
@cython.final
- cdef tree.xmlDtd* _get_c_dtd(self):
+ cdef tree.xmlDtd* _get_c_dtd(self) noexcept:
""""Return the DTD. Create it if it does not yet exist."""
cdef xmlDoc* c_doc = self._doc._c_doc
cdef xmlNode* c_root_node
--
2.53.0