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| author | Serhiy Storchaka <storchaka@gmail.com> | 2016-10-07 18:51:28 (GMT) |
|---|---|---|
| committer | Serhiy Storchaka <storchaka@gmail.com> | 2016-10-07 18:51:28 (GMT) |
| commit | cf3806026b4f9784f97fce168695c3b4a6bbd8a5 (patch) | |
| tree | 5819771988e418058920612ec19a6c83dc1e8013 /Parser | |
| parent | 36e7e97d621863e6e3e3baeb22909ec06e720639 (diff) | |
| download | cpython-cf3806026b4f9784f97fce168695c3b4a6bbd8a5.zip cpython-cf3806026b4f9784f97fce168695c3b4a6bbd8a5.tar.gz cpython-cf3806026b4f9784f97fce168695c3b4a6bbd8a5.tar.bz2 | |
Issue #24098: Fixed possible crash when AST is changed in process of
compiling it.
Diffstat (limited to 'Parser')
| -rwxr-xr-x | Parser/asdl_c.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Parser/asdl_c.py b/Parser/asdl_c.py index f38c253..ac9d2b6 100755 --- a/Parser/asdl_c.py +++ b/Parser/asdl_c.py @@ -526,6 +526,13 @@ class Obj2ModVisitor(PickleVisitor): self.emit("res = obj2ast_%s(PyList_GET_ITEM(tmp, i), &value, arena);" % field.type, depth+2, reflow=False) self.emit("if (res != 0) goto failed;", depth+2) + self.emit("if (len != PyList_GET_SIZE(tmp)) {", depth+2) + self.emit("PyErr_SetString(PyExc_RuntimeError, \"%s field \\\"%s\\\" " + "changed size during iteration\");" % + (name, field.name), + depth+3, reflow=False) + self.emit("goto failed;", depth+3) + self.emit("}", depth+2) self.emit("asdl_seq_SET(%s, i, value);" % field.name, depth+2) self.emit("}", depth+1) else: |