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-rw-r--r--Modules/bz2module.c28
-rw-r--r--Modules/cPickle.c13
-rw-r--r--Python/compile.c36
-rw-r--r--Python/pyarena.c8
-rw-r--r--Python/pythonrun.c23
-rw-r--r--Python/symtable.c2
6 files changed, 74 insertions, 36 deletions
diff --git a/Modules/bz2module.c b/Modules/bz2module.c
index 5800bff..5e5a801 100644
--- a/Modules/bz2module.c
+++ b/Modules/bz2module.c
@@ -1348,8 +1348,10 @@ BZ2File_init(BZ2FileObject *self, PyObject *args, PyObject *kwargs)
#ifdef WITH_THREAD
self->lock = PyThread_allocate_lock();
- if (!self->lock)
+ if (!self->lock) {
+ PyErr_SetString(PyExc_MemoryError, "unable to allocate lock");
goto error;
+ }
#endif
if (mode_char == 'r')
@@ -1371,10 +1373,12 @@ BZ2File_init(BZ2FileObject *self, PyObject *args, PyObject *kwargs)
return 0;
error:
- Py_DECREF(self->file);
+ Py_CLEAR(self->file);
#ifdef WITH_THREAD
- if (self->lock)
+ if (self->lock) {
PyThread_free_lock(self->lock);
+ self->lock = NULL;
+ }
#endif
return -1;
}
@@ -1682,8 +1686,10 @@ BZ2Comp_init(BZ2CompObject *self, PyObject *args, PyObject *kwargs)
#ifdef WITH_THREAD
self->lock = PyThread_allocate_lock();
- if (!self->lock)
+ if (!self->lock) {
+ PyErr_SetString(PyExc_MemoryError, "unable to allocate lock");
goto error;
+ }
#endif
memset(&self->bzs, 0, sizeof(bz_stream));
@@ -1698,8 +1704,10 @@ BZ2Comp_init(BZ2CompObject *self, PyObject *args, PyObject *kwargs)
return 0;
error:
#ifdef WITH_THREAD
- if (self->lock)
+ if (self->lock) {
PyThread_free_lock(self->lock);
+ self->lock = NULL;
+ }
#endif
return -1;
}
@@ -1894,8 +1902,10 @@ BZ2Decomp_init(BZ2DecompObject *self, PyObject *args, PyObject *kwargs)
#ifdef WITH_THREAD
self->lock = PyThread_allocate_lock();
- if (!self->lock)
+ if (!self->lock) {
+ PyErr_SetString(PyExc_MemoryError, "unable to allocate lock");
goto error;
+ }
#endif
self->unused_data = PyString_FromString("");
@@ -1915,10 +1925,12 @@ BZ2Decomp_init(BZ2DecompObject *self, PyObject *args, PyObject *kwargs)
error:
#ifdef WITH_THREAD
- if (self->lock)
+ if (self->lock) {
PyThread_free_lock(self->lock);
+ self->lock = NULL;
+ }
#endif
- Py_XDECREF(self->unused_data);
+ Py_CLEAR(self->unused_data);
return -1;
}
diff --git a/Modules/cPickle.c b/Modules/cPickle.c
index 6b9b322..56f2335 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -196,7 +196,7 @@ Pdata_clear(Pdata *self, int clearto)
for (i = self->length, p = self->data + clearto;
--i >= clearto;
p++) {
- Py_DECREF(*p);
+ Py_CLEAR(*p);
}
self->length = clearto;
@@ -208,6 +208,7 @@ Pdata_grow(Pdata *self)
{
int bigger;
size_t nbytes;
+ PyObject **tmp;
bigger = self->size << 1;
if (bigger <= 0) /* was 0, or new value overflows */
@@ -217,14 +218,14 @@ Pdata_grow(Pdata *self)
nbytes = (size_t)bigger * sizeof(PyObject *);
if (nbytes / sizeof(PyObject *) != (size_t)bigger)
goto nomemory;
- self->data = realloc(self->data, nbytes);
- if (self->data == NULL)
+ tmp = realloc(self->data, nbytes);
+ if (tmp == NULL)
goto nomemory;
+ self->data = tmp;
self->size = bigger;
return 0;
nomemory:
- self->size = 0;
PyErr_NoMemory();
return -1;
}
@@ -4163,6 +4164,7 @@ do_append(Unpicklerobject *self, int x)
int list_len;
slice=Pdata_popList(self->stack, x);
+ if (! slice) return -1;
list_len = PyList_GET_SIZE(list);
i=PyList_SetSlice(list, list_len, list_len, slice);
Py_DECREF(slice);
@@ -5167,6 +5169,9 @@ newUnpicklerobject(PyObject *f)
if (!( self->memo = PyDict_New()))
goto err;
+ if (!self->stack)
+ goto err;
+
Py_INCREF(f);
self->file = f;
diff --git a/Python/compile.c b/Python/compile.c
index 3ee5cbb..564df18 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -300,8 +300,11 @@ PyCodeObject *
PyNode_Compile(struct _node *n, const char *filename)
{
PyCodeObject *co = NULL;
+ mod_ty mod;
PyArena *arena = PyArena_New();
- mod_ty mod = PyAST_FromNode(n, NULL, filename, arena);
+ if (!arena)
+ return NULL;
+ mod = PyAST_FromNode(n, NULL, filename, arena);
if (mod)
co = PyAST_Compile(mod, filename, NULL, arena);
PyArena_Free(arena);
@@ -615,8 +618,10 @@ markblocks(unsigned char *code, int len)
unsigned int *blocks = (unsigned int *)PyMem_Malloc(len*sizeof(int));
int i,j, opcode, blockcnt = 0;
- if (blocks == NULL)
+ if (blocks == NULL) {
+ PyErr_NoMemory();
return NULL;
+ }
memset(blocks, 0, len*sizeof(int));
/* Mark labels in the first pass */
@@ -1071,14 +1076,14 @@ compiler_unit_free(struct compiler_unit *u)
PyObject_Free((void *)b);
b = next;
}
- Py_XDECREF(u->u_ste);
- Py_XDECREF(u->u_name);
- Py_XDECREF(u->u_consts);
- Py_XDECREF(u->u_names);
- Py_XDECREF(u->u_varnames);
- Py_XDECREF(u->u_freevars);
- Py_XDECREF(u->u_cellvars);
- Py_XDECREF(u->u_private);
+ Py_CLEAR(u->u_ste);
+ Py_CLEAR(u->u_name);
+ Py_CLEAR(u->u_consts);
+ Py_CLEAR(u->u_names);
+ Py_CLEAR(u->u_varnames);
+ Py_CLEAR(u->u_freevars);
+ Py_CLEAR(u->u_cellvars);
+ Py_CLEAR(u->u_private);
PyObject_Free(u);
}
@@ -1139,7 +1144,8 @@ compiler_enter_scope(struct compiler *c, identifier name, void *key,
/* Push the old compiler_unit on the stack. */
if (c->u) {
PyObject *wrapper = PyCObject_FromVoidPtr(c->u, NULL);
- if (PyList_Append(c->c_stack, wrapper) < 0) {
+ if (!wrapper || PyList_Append(c->c_stack, wrapper) < 0) {
+ Py_XDECREF(wrapper);
compiler_unit_free(u);
return 0;
}
@@ -1265,6 +1271,7 @@ compiler_next_instr(struct compiler *c, basicblock *b)
sizeof(struct instr) * DEFAULT_BLOCK_SIZE);
}
else if (b->b_iused == b->b_ialloc) {
+ struct instr *tmp;
size_t oldsize, newsize;
oldsize = b->b_ialloc * sizeof(struct instr);
newsize = oldsize << 1;
@@ -1273,10 +1280,13 @@ compiler_next_instr(struct compiler *c, basicblock *b)
return -1;
}
b->b_ialloc <<= 1;
- b->b_instr = (struct instr *)PyObject_Realloc(
+ tmp = (struct instr *)PyObject_Realloc(
(void *)b->b_instr, newsize);
- if (b->b_instr == NULL)
+ if (tmp == NULL) {
+ PyErr_NoMemory();
return -1;
+ }
+ b->b_instr = tmp;
memset((char *)b->b_instr + oldsize, 0, newsize - oldsize);
}
return b->b_iused++;
diff --git a/Python/pyarena.c b/Python/pyarena.c
index f11a905..f4cc474 100644
--- a/Python/pyarena.c
+++ b/Python/pyarena.c
@@ -132,19 +132,19 @@ PyArena_New()
{
PyArena* arena = (PyArena *)malloc(sizeof(PyArena));
if (!arena)
- return NULL;
+ return (PyArena*)PyErr_NoMemory();
arena->a_head = block_new(DEFAULT_BLOCK_SIZE);
arena->a_cur = arena->a_head;
if (!arena->a_head) {
free((void *)arena);
- return NULL;
+ return (PyArena*)PyErr_NoMemory();
}
arena->a_objects = PyList_New(0);
if (!arena->a_objects) {
block_free(arena->a_head);
free((void *)arena);
- return NULL;
+ return (PyArena*)PyErr_NoMemory();
}
#if defined(Py_DEBUG)
arena->total_allocs = 0;
@@ -191,7 +191,7 @@ PyArena_Malloc(PyArena *arena, size_t size)
{
void *p = block_alloc(arena->a_cur, size);
if (!p)
- return NULL;
+ return PyErr_NoMemory();
#if defined(Py_DEBUG)
arena->total_allocs++;
arena->total_size += size;
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index bc83219..88fd67c 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -746,6 +746,11 @@ PyRun_InteractiveOneFlags(FILE *fp, const char *filename, PyCompilerFlags *flags
ps2 = PyString_AsString(w);
}
arena = PyArena_New();
+ if (arena == NULL) {
+ Py_XDECREF(v);
+ Py_XDECREF(w);
+ return -1;
+ }
mod = PyParser_ASTFromFile(fp, filename,
Py_single_input, ps1, ps2,
flags, &errcode, arena);
@@ -1203,9 +1208,8 @@ PyRun_StringFlags(const char *str, int start, PyObject *globals,
PyObject *locals, PyCompilerFlags *flags)
{
PyObject *ret = NULL;
- PyArena *arena = PyArena_New();
mod_ty mod;
-
+ PyArena *arena = PyArena_New();
if (arena == NULL)
return NULL;
@@ -1221,9 +1225,8 @@ PyRun_FileExFlags(FILE *fp, const char *filename, int start, PyObject *globals,
PyObject *locals, int closeit, PyCompilerFlags *flags)
{
PyObject *ret;
- PyArena *arena = PyArena_New();
mod_ty mod;
-
+ PyArena *arena = PyArena_New();
if (arena == NULL)
return NULL;
@@ -1291,8 +1294,12 @@ Py_CompileStringFlags(const char *str, const char *filename, int start,
PyCompilerFlags *flags)
{
PyCodeObject *co;
+ mod_ty mod;
PyArena *arena = PyArena_New();
- mod_ty mod = PyParser_ASTFromString(str, filename, start, flags, arena);
+ if (arena == NULL)
+ return NULL;
+
+ mod = PyParser_ASTFromString(str, filename, start, flags, arena);
if (mod == NULL) {
PyArena_Free(arena);
return NULL;
@@ -1311,8 +1318,12 @@ struct symtable *
Py_SymtableString(const char *str, const char *filename, int start)
{
struct symtable *st;
+ mod_ty mod;
PyArena *arena = PyArena_New();
- mod_ty mod = PyParser_ASTFromString(str, filename, start, NULL, arena);
+ if (arena == NULL)
+ return NULL;
+
+ mod = PyParser_ASTFromString(str, filename, start, NULL, arena);
if (mod == NULL) {
PyArena_Free(arena);
return NULL;
diff --git a/Python/symtable.c b/Python/symtable.c
index fae9208..c010b7a 100644
--- a/Python/symtable.c
+++ b/Python/symtable.c
@@ -727,7 +727,7 @@ symtable_exit_block(struct symtable *st, void *ast)
{
Py_ssize_t end;
- Py_DECREF(st->st_cur);
+ Py_CLEAR(st->st_cur);
end = PyList_GET_SIZE(st->st_stack) - 1;
if (end >= 0) {
st->st_cur = (PySTEntryObject *)PyList_GET_ITEM(st->st_stack,
generated by cgit v0.12 at 2025-02-19 22:22:44 (GMT)