diff options
| -rw-r--r-- | erts/emulator/beam/external.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 152dbcf085..9d52ed4e98 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -3118,6 +3118,9 @@ decoded_size(byte *ep, byte* endp, int internal_tags) case LARGE_BIG_EXT: CHKSIZE(4); n = get_int32(ep); + if (n > BIG_ARITY_MAX*sizeof(ErtsDigit)) { + return -1; + } SKIP2(n,4+1); /* skip, size,sign,digits */ heap_size += 1+1+(n+sizeof(Eterm)-1)/sizeof(Eterm); /* XXX: 1 too much? */ break; |