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authorSverker Eriksson <[email protected]>2016-08-22 20:26:01 +0200
committerSverker Eriksson <[email protected]>2016-08-23 18:39:05 +0200
commit8f0d1988c0943491e89428b54cd457c8e8e580a2 (patch)
treeff2d22739ceb993b6371ca4369ef396e7afdc793 /erts/emulator
parent71894a879d6254693791585246ce340dd7414b82 (diff)
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erts: Fix load of beam with invalid imports and atom numbers
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/beam_load.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 0c2743beb2..30913910b6 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -303,13 +303,13 @@ typedef struct LoaderState {
* Atom table.
*/
- int num_atoms; /* Number of atoms in atom table. */
+ unsigned int num_atoms; /* Number of atoms in atom table. */
Eterm* atom; /* Atom table. */
int num_exps; /* Number of exports. */
ExportEntry* export; /* Pointer to export table. */
- int num_imports; /* Number of imports. */
+ unsigned int num_imports; /* Number of imports. */
ImportEntry* import; /* Import entry (translated information). */
/*
@@ -1375,13 +1375,13 @@ load_atom_table(LoaderState* stp)
static int
load_import_table(LoaderState* stp)
{
- int i;
+ unsigned int i;
GetInt(stp, 4, stp->num_imports);
stp->import = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_imports * sizeof(ImportEntry));
for (i = 0; i < stp->num_imports; i++) {
- int n;
+ unsigned int n;
Eterm mod;
Eterm func;
Uint arity;
@@ -1389,17 +1389,17 @@ load_import_table(LoaderState* stp)
GetInt(stp, 4, n);
if (n >= stp->num_atoms) {
- LoadError2(stp, "import entry %d: invalid atom number %d", i, n);
+ LoadError2(stp, "import entry %u: invalid atom number %u", i, n);
}
mod = stp->import[i].module = stp->atom[n];
GetInt(stp, 4, n);
if (n >= stp->num_atoms) {
- LoadError2(stp, "import entry %d: invalid atom number %d", i, n);
+ LoadError2(stp, "import entry %u: invalid atom number %u", i, n);
}
func = stp->import[i].function = stp->atom[n];
GetInt(stp, 4, arity);
if (arity > MAX_REG) {
- LoadError2(stp, "import entry %d: invalid arity %d", i, arity);
+ LoadError2(stp, "import entry %u: invalid arity %d", i, arity);
}
stp->import[i].arity = arity;
stp->import[i].patches = 0;