Paul Mackerras: Remote Linux DoS on ppp servers (CAN-2005-0384)
Linux Kernel Mailing List <[email protected]> Wed, 16 Mar 2005 16:35:16 +0000
| Newsgroups | gmane.linux.kernel.commits.2-4 |
|---|---|
| Message-ID | <[email protected]> |
ChangeSet 1.1583, 2005/03/16 13:35:16-03:00, [email protected] Paul Mackerras: Remote Linux DoS on ppp servers (CAN-2005-0384) ppp_async.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -Nru a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c --- a/drivers/net/ppp_async.c 2005-03-16 15:03:09 -08:00 +++ b/drivers/net/ppp_async.c 2005-03-16 15:03:09 -08:00 @@ -996,7 +996,7 @@ data += 4; dlen -= 4; /* data[0] is code, data[1] is length */ - while (dlen >= 2 && dlen >= data[1]) { + while (dlen >= 2 && dlen >= data[1] && data[1] >= 2) { switch (data[0]) { case LCP_MRU: val = (data[2] << 8) + data[3];