Messages in this thread Patch in this message |  | | | Date | Tue, 7 Aug 2007 13:43:04 -0700 | | From | Greg KH <> | | Subject | [2.6.22.2 review 08/84] SCTP scope_id handling fix |
| |
From: Vlad Yasevich <vladislav.yasevich@hp.com>
SCTP: Add scope_id validation for link-local binds
SCTP currently permits users to bind to link-local addresses, but doesn't verify that the scope id specified at bind matches the interface that the address is configured on. It was report that this can hang a system.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- net/sctp/ipv6.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -875,6 +875,10 @@ static int sctp_inet6_send_verify(struct dev = dev_get_by_index(addr->v6.sin6_scope_id); if (!dev) return 0; + if (!ipv6_chk_addr(&addr->v6.sin6_addr, dev, 0)) { + dev_put(dev); + return 0; + } dev_put(dev); } af = opt->pf->af; -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |