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GH-93964: Harden overflow checks before _PyBytes_Resize in compile.c #94044

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GH-93964: Harden overflow checks before _PyBytes_Resize in compile.c #94044

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72ab0f5
Harden overflow checks before _PyBytes_Resize in compile.c
sweeneyde Jun 21, 2022
fa9e69d
📜🤖 Added by blurb_it.
blurb-it[bot] Jun 21, 2022
e0054bf
Another test, more comments
sweeneyde Jun 21, 2022
e05b51e
remove unused variable
sweeneyde Jun 21, 2022
cebc41b
Merge remote-tracking branch 'upstream/main' into compile_overflows
sweeneyde Jul 26, 2022
75a08cd
simplify checks by using b_len/unitsize. use INT_MAX..
sweeneyde Jul 26, 2022
7febdc8
re-use b_len
sweeneyde Jul 26, 2022
4a708eb
remove misleading assertion
sweeneyde Jul 27, 2022
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remove misleading assertion
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@sweeneyde
sweeneyde committed Jul 27, 2022
commit 4a708ebde52a4e1e21ab785f36cfb1450ab5c453
1 change: 0 additions & 1 deletion Python/compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7776,7 +7776,6 @@ assemble_emit(struct assembler *a, struct instr *i)
{
_Py_CODEUNIT *code;
int size = instr_size(i);
assert(a->a_offset <= INT_MAX / sizeof(_Py_CODEUNIT));
if (!bytes_make_room(&a->a_bytecode, sizeof(_Py_CODEUNIT),
a->a_offset, size, "bytecode is too long")) {
return 0;
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