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Limit rndc query message sizes to 32 KiB (#41073)

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(cherry picked from commit 9b17fd447c)
This commit is contained in:
Mukund Sivaraman 2015-11-11 09:55:25 +05:30
parent 68f0d1f5c4
commit 380eee242d
2 changed files with 9 additions and 0 deletions
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5
CHANGES
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@ -1,3 +1,8 @@
4258. [bug] Limit rndc query message sizes to 32 KiB. This should
not break any legitimate rndc commands, but will
prevent a rogue rndc query from allocating too
much memory. [RT #41073]
4257. [cleanup] Python scripts reported incorrect version. [RT #41080]
4256. [bug] Allow rndc command arguments to be quoted so as

4
bin/named/controlconf.c
View file

@ -547,6 +547,10 @@ newconnection(controllistener_t *listener, isc_socket_t *sock) {
conn->sock = sock;
isccc_ccmsg_init(listener->mctx, sock, &conn->ccmsg);
/* Set a 32 KiB upper limit on incoming message. */
isccc_ccmsg_setmaxsize(&conn->ccmsg, 32768);
conn->ccmsg_valid = ISC_TRUE;
conn->sending = ISC_FALSE;
conn->timer = NULL;