mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-09-03 15:31:08 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

gh-127903: Fix a crash on debug builds when calling Objects/unicodeobject::_copy_characters` (#127876)

Browse source
This commit is contained in:
Alexander Shadchin 2025-01-03 21:47:58 +03:00 • committed by GitHub
parent 4c14f03495
commit 46cb6340d7
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
3 changed files with 15 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

9
Objects/unicodeobject.c
View file

@ -1463,11 +1463,14 @@ _copy_characters(PyObject *to, Py_ssize_t to_start,
assert(PyUnicode_Check(from));
assert(from_start + how_many <= PyUnicode_GET_LENGTH(from));
assert(PyUnicode_Check(to));
assert(to_start + how_many <= PyUnicode_GET_LENGTH(to));
assert(to == NULL || PyUnicode_Check(to));
if (how_many == 0)
if (how_many == 0) {
return 0;
}
assert(to != NULL);
assert(to_start + how_many <= PyUnicode_GET_LENGTH(to));
from_kind = PyUnicode_KIND(from);
from_data = PyUnicode_DATA(from);