diff options
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r-- | erts/emulator/beam/beam_load.c | 3 | ||||
-rw-r--r-- | erts/emulator/beam/big.c | 2 | ||||
-rw-r--r-- | erts/emulator/beam/erl_bits.c | 5 | ||||
-rw-r--r-- | erts/emulator/beam/external.c | 2 |
4 files changed, 10 insertions, 2 deletions
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index cfc6146b0a..41c1b5d2c2 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -4971,7 +4971,8 @@ get_tag_and_value(LoaderState* stp, Uint len_code, arity = count/sizeof(Eterm); *result = new_literal(stp, &hp, arity+1); - (void) bytes_to_big(bigbuf, count, neg, hp); + if (is_nil(bytes_to_big(bigbuf, count, neg, hp))) + goto load_error; if (bigbuf != default_buf) { erts_free(ERTS_ALC_T_LOADER_TMP, (void *) bigbuf); diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c index de7d370938..d1e46e3063 100644 --- a/erts/emulator/beam/big.c +++ b/erts/emulator/beam/big.c @@ -1900,6 +1900,8 @@ Eterm bytes_to_big(byte *xp, dsize_t xsz, int xsgn, Eterm *r) *rwp = d; rwp++; } + if (rsz > BIG_ARITY_MAX) + return NIL; if (xsgn) { *r = make_neg_bignum_header(rsz); } diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c index 73765772c8..53c21c40e1 100644 --- a/erts/emulator/beam/erl_bits.c +++ b/erts/emulator/beam/erl_bits.c @@ -403,7 +403,10 @@ erts_bs_get_integer_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuff words_needed = 1+WSIZE(bytes); hp = HeapOnlyAlloc(p, words_needed); res = bytes_to_big(LSB, bytes, sgn, hp); - if (is_small(res)) { + if (is_nil(res)) { + p->htop = hp; + res = THE_NON_VALUE; + } else if (is_small(res)) { p->htop = hp; } else if ((actual = bignum_header_arity(*hp)+1) < words_needed) { p->htop = hp + actual; diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 9b9b4b2a62..45d1f7514e 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -3056,6 +3056,8 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, big = make_small(0); } else { big = bytes_to_big(first, n, neg, hp); + if (is_nil(big)) + goto error; if (is_big(big)) { hp += big_arity(big) + 1; } |