diff options
| author | Erlang/OTP <[email protected]> | 2019-05-14 15:27:40 +0200 |
|---|---|---|
| committer | Erlang/OTP <[email protected]> | 2019-05-14 15:27:40 +0200 |
| commit | 7b9cce213cc303115f37af788e68fb2249418c95 (patch) | |
| tree | 6bb407e7aaf24601ee035b6d17a898d54df77307 /erts/emulator/test | |
| parent | 19787959d0f6fd3c580c41fa7dc58d8eb081235e (diff) | |
| parent | 529aec04776dcead1eb7b7fe3ff975d7538cfa5b (diff) | |
| download | otp-7b9cce213cc303115f37af788e68fb2249418c95.tar.gz otp-7b9cce213cc303115f37af788e68fb2249418c95.tar.bz2 otp-7b9cce213cc303115f37af788e68fb2249418c95.zip | |
Merge branch 'john/erts/fix-xxx_to_existing_atom-overflow/ERL-944/OTP-15819' into maint-21
* john/erts/fix-xxx_to_existing_atom-overflow/ERL-944/OTP-15819:
erts: Fix buffer overflow in xxx_to_existing_atom
Diffstat (limited to 'erts/emulator/test')
| -rw-r--r-- | erts/emulator/test/bif_SUITE.erl | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl index 9e7bcd5255..9f6e1059b9 100644 --- a/erts/emulator/test/bif_SUITE.erl +++ b/erts/emulator/test/bif_SUITE.erl @@ -609,6 +609,16 @@ binary_to_existing_atom(Config) when is_list(Config) -> UnlikelyAtom = binary_to_atom(id(UnlikelyBin), latin1), UnlikelyAtom = binary_to_existing_atom(UnlikelyBin, latin1), + + %% ERL-944; a binary that was too large would overflow the latin1-to-utf8 + %% conversion buffer. + OverflowAtom = <<0:511/unit:8, + 196, 133, 196, 133, 196, 133, 196, 133, 196, 133, + 196, 133, 196, 133, 196, 133, 196, 133, 196, 133, + 196, 133, 196, 133, 196, 133, 196, 133, 196, 133, + 196, 133, 196, 133, 196, 133, 196, 133, 196, 133>>, + {'EXIT', _} = (catch binary_to_existing_atom(OverflowAtom, latin1)), + ok. |