mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-04 00:30:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

bpo-34879: Fix a possible null pointer dereference in bytesobject.c (GH-9683)

Browse source 
formatfloat() was not checking if PyBytes_FromStringAndSize()
failed, which could lead to a null pointer dereference in
_PyBytes_FormatEx().
This commit is contained in:
Zackery Spytz 2018-10-03 00:01:30 -06:00 • committed by Serhiy Storchaka
parent e006b39a40
commit 96c5932794
2 changed files with 3 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Misc/NEWS.d/next/Core and Builtins/2018-10-02-22-55-11.bpo-34879.7VNH2a.rst Normal file
View file

@ -0,0 +1,2 @@
Fix a possible null pointer dereference in bytesobject.c. Patch by Zackery
Spytz.

2
Objects/bytesobject.c
View file

@ -448,7 +448,7 @@ formatfloat(PyObject *v, int flags, int prec, int type,
result = PyBytes_FromStringAndSize(p, len);
PyMem_Free(p);
*p_result = result;
return str;
return result != NULL ? str : NULL;
}
static PyObject *