diff options
| author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-02-21 17:04:22 +0000 |
|---|---|---|
| committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-02-21 17:04:22 +0000 |
| commit | 6b0f5967193ab3a827ac07d24bdf1c099135c381 (patch) | |
| tree | ebbf951ad949fc526bb53e1b4df9a1eac57db9cd /ext/socket | |
| parent | 60f2cec6468bd4ce1d9821d851c9758b4299635c (diff) | |
| download | ruby-6b0f5967193ab3a827ac07d24bdf1c099135c381.tar.gz | |
* ext/socket/ancdata.c (bsock_recvmsg_internal): check max length
overflow.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22491 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/socket')
| -rw-r--r-- | ext/socket/ancdata.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ext/socket/ancdata.c b/ext/socket/ancdata.c index 28f00649d7..e3f56fe50f 100644 --- a/ext/socket/ancdata.c +++ b/ext/socket/ancdata.c @@ -1313,6 +1313,8 @@ bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock) int grown = 0; #if defined(HAVE_ST_MSG_CONTROL) if (NIL_P(vmaxdatlen) && (mh.msg_flags & MSG_TRUNC)) { + if (SIZE_MAX/2 < maxdatlen) + rb_raise(rb_eArgError, "max data length too big"); maxdatlen *= 2; grown = 1; } @@ -1328,6 +1330,8 @@ bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock) } } else { + if (SIZE_MAX/2 < maxctllen) + rb_raise(rb_eArgError, "max control message length too big"); maxctllen *= 2; grown = 1; } @@ -1335,6 +1339,8 @@ bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock) } #else if (NIL_P(vmaxdatlen) && ss != -1 && ss == iov.iov_len) { + if (SIZE_MAX/2 < maxdatlen) + rb_raise(rb_eArgError, "max data length too big"); maxdatlen *= 2; grown = 1; } |