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adding an upper limit for blocks_max in _set_blocks_max

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Jayakrishna Menon 2019-03-08 11:30:35 -07:00 committed by Andrew Murray
parent ea570a8c5b
commit 37516fb665
1 changed files with 6 additions and 0 deletions
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6
src/_imaging.c
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@ -3625,6 +3625,12 @@ _set_blocks_max(PyObject* self, PyObject* args)
"blocks_max should be greater than 0"); "blocks_max should be greater than 0");
return NULL; return NULL;
} }
else if ( blocks_max > SIZE_MAX/sizeof(ImagingDefaultArena.blocks_pool[0])) {
PyErr_SetString(PyExc_ValueError,
"blocks_max is too large");
return NULL;
}
if ( ! ImagingMemorySetBlocksMax(&ImagingDefaultArena, blocks_max)) { if ( ! ImagingMemorySetBlocksMax(&ImagingDefaultArena, blocks_max)) {
ImagingError_MemoryError(); ImagingError_MemoryError();