DrSocalkwe3n/luajit
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

FFI: Fix dangling reference to CType. Improve checks.

Browse Source 
Reported by elmknot.
This commit is contained in:
Mike Pall
2022-12-07 17:19:29 +01:00
parent 1c5113aea9
commit cc96ab9d51
2 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/lj_ctype.c
View File

@@ -187,8 +187,20 @@ CTypeID lj_ctype_intern(CTState *cts, CTInfo info, CTSize size)
}
id = cts->top;
if (LJ_UNLIKELY(id >= cts->sizetab)) {
#ifdef LUAJIT_CTYPE_CHECK_ANCHOR
CType *ct;
#endif
if (id >= CTID_MAX) lj_err_msg(cts->L, LJ_ERR_TABOV);
#ifdef LUAJIT_CTYPE_CHECK_ANCHOR
ct = lj_mem_newvec(cts->L, id+1, CType);
memcpy(ct, cts->tab, id*sizeof(CType));
memset(cts->tab, 0, id*sizeof(CType));
lj_mem_freevec(cts->g, cts->tab, cts->sizetab, CType);
cts->tab = ct;
cts->sizetab = id+1;
#else
lj_mem_growvec(cts->L, cts->tab, cts->sizetab, CTID_MAX, CType);
#endif
}
cts->top = id+1;
cts->tab[id].info = info;