mirror/ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2026-01-26 20:19:19 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add underflow check

Browse Source
This commit is contained in:
Nobuyoshi Nakada 2025-06-29 01:30:09 +09:00
parent dc74f9cb36
commit 63f6f87e86
No known key found for this signature in database
GPG Key ID: 3582D74E1FEE4465
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
compile.c
View File

@ -2178,15 +2178,13 @@ iseq_set_local_table(rb_iseq_t *iseq, const rb_ast_id_table_t *tbl, const NODE *
// then its local table should only be `...`
// FIXME: I think this should be fixed in the AST rather than special case here.
if (args->forwarding && args->pre_args_num == 0 && !args->opt_args) {
CHECK(size >= 3);
size -= 3;
offset += 3;
}
}
if (size > 0) {
#if SIZEOF_INT >= SIZEOF_SIZE_T
ASSUME(size < SIZE_MAX / sizeof(ID)); /* checked in xmalloc2_size */
#endif
ID *ids = ALLOC_N(ID, size);
MEMCPY(ids, tbl->ids + offset, ID, size);
ISEQ_BODY(iseq)->local_table = ids;