New submission from Christian Heimes <li...@cheimes.de>:
I'm getting a couple of compiler warnings with gcc-10.1.1 (Fedora 32) with an
asan and ubsan build:
Parser/string_parser.c: In function ‘decode_unicode_with_escapes’:
Parser/string_parser.c:100:17: warning: null destination pointer
[-Wformat-overflow=]
100 | sprintf(p, "\\U%08x", chr);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
Parser/string_parser.c:100:17: warning: null destination pointer
[-Wformat-overflow=]
Parser/string_parser.c:100:17: warning: null destination pointer
[-Wformat-overflow=]
Objects/unicodeobject.c: In function ‘xmlcharrefreplace’:
Objects/unicodeobject.c:849:16: warning: null destination pointer
[-Wformat-overflow=]
849 | str += sprintf(str, "&#%d;", PyUnicode_READ(kind, data, i));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Objects/unicodeobject.c:849:16: warning: null destination pointer
[-Wformat-overflow=]
Objects/unicodeobject.c:849:16: warning: null destination pointer
[-Wformat-overflow=]
In function ‘assemble_lnotab’,
inlined from ‘assemble_emit’ at Python/compile.c:5697:25,
inlined from ‘assemble’ at Python/compile.c:6036:18:
Python/compile.c:5651:19: warning: writing 1 byte into a region of size 0
[-Wstringop-overflow=]
5651 | *lnotab++ = k;
| ~~~~~~~~~~^~~
----------
components: Build
messages: 371335
nosy: christian.heimes
priority: normal
severity: normal
status: open
title: GCC overflow warnings (format-overflow, stringop-overflow)
type: compile error
versions: Python 3.10, Python 3.9
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40952>
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