mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-25 04:34:37 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 12

gh-129813, PEP 782: Init small_buffer in PyBytesWriter_Create() (#138924)

Browse source 
Fill small_buffer with 0xFF byte pattern to detect the usage of
uninitialized bytes in debug build.
This commit is contained in:
Victor Stinner 2025-09-15 15:23:11 +01:00 • committed by GitHub
parent f07ae274b8
commit 7c6efc3a4f
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 3 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Objects/bytesobject.c
View file

@ -3861,6 +3861,9 @@ byteswriter_create(Py_ssize_t size, int use_bytearray)
return NULL; return NULL;
} }
} }
#ifdef Py_DEBUG
memset(writer->small_buffer, 0xff, sizeof(writer->small_buffer));
#endif
writer->obj = NULL; writer->obj = NULL;
writer->size = 0; writer->size = 0;
writer->use_bytearray = use_bytearray; writer->use_bytearray = use_bytearray;