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| author | Sverker Eriksson <[email protected]> | 2012-02-20 19:53:32 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2012-02-21 12:10:40 +0100 |
| commit | de742bb6eb202c5a524bab3617a2ede918598705 (patch) | |
| tree | 46685357e8a3ee9dacb2c2f0f2ae49f231916ed0 /erts/emulator/beam/external.c | |
| parent | 75b831aa879234db6d8821a32f4c411ef6cfc6ff (diff) | |
| download | otp-de742bb6eb202c5a524bab3617a2ede918598705.tar.gz otp-de742bb6eb202c5a524bab3617a2ede918598705.tar.bz2 otp-de742bb6eb202c5a524bab3617a2ede918598705.zip | |
erts: Fail binary_to_term if bignum arity is too large
Diffstat (limited to 'erts/emulator/beam/external.c')
| -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; |