Patch "net: Zero terminate ifr_name in dev_ifname()." has been added to the 4.4-stable tree

Patch "net: Zero terminate ifr_name in dev_ifname()." has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net: Zero terminate ifr_name in dev_ifname().

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-zero-terminate-ifr_name-in-dev_ifname.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Tue Aug  8 16:51:58 PDT 2017
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 19 Jul 2017 13:33:24 -0700
Subject: net: Zero terminate ifr_name in dev_ifname().

From: "David S. Miller" <davem@davemloft.net>


[ Upstream commit 63679112c536289826fec61c917621de95ba2ade ]

The ifr.ifr_name is passed around and assumed to be NULL terminated.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/dev_ioctl.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -28,6 +28,7 @@ static int dev_ifname(struct net *net, s
 
 	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
 		return -EFAULT;
+	ifr.ifr_name[IFNAMSIZ-1] = 0;
 
 	error = netdev_get_name(net, ifr.ifr_name, ifr.ifr_ifindex);
 	if (error)


Patches currently in stable-queue which might be from davem@davemloft.net are

queue-4.4/ipv4-ipv6-initialize-treq-txhash-in-cookie_v_check.patch
queue-4.4/openvswitch-fix-potential-out-of-bound-access-in-parse_ct.patch
queue-4.4/ipv6-don-t-increase-ipstats_mib_fragfails-twice-in-ip6_fragment.patch
queue-4.4/sctp-don-t-dereference-ptr-before-leaving-_sctp_walk_-params-errors.patch
queue-4.4/net-ethernet-nb8800-handle-all-4-rgmii-modes-identically.patch
queue-4.4/sctp-fix-the-check-for-_sctp_walk_params-and-_sctp_walk_errors.patch
queue-4.4/packet-fix-use-after-free-in-prb_retire_rx_blk_timer_expired.patch
queue-4.4/rtnetlink-allocate-more-memory-for-dev_set_mac_address.patch
queue-4.4/sparc64-measure-receiver-forward-progress-to-avoid-send-mondo-timeout.patch
queue-4.4/dccp-fix-a-memleak-that-dccp_ipv6-doesn-t-put-reqsk-properly.patch
queue-4.4/sparc64-prevent-perf-from-running-during-super-critical-sections.patch
queue-4.4/dccp-fix-a-memleak-that-dccp_ipv4-doesn-t-put-reqsk-properly.patch
queue-4.4/mcs7780-fix-initialization-when-config_vmap_stack-is-enabled.patch
queue-4.4/net-zero-terminate-ifr_name-in-dev_ifname.patch
queue-4.4/net-phy-correctly-process-phy_halted-in-phy_stop_machine.patch
queue-4.4/ipv6-avoid-overflow-of-offset-in-ip6_find_1stfragopt.patch
queue-4.4/xen-netback-correctly-schedule-rate-limited-queues.patch
queue-4.4/dccp-fix-a-memleak-for-dccp_feat_init-err-process.patch
queue-4.4/ipv4-initialize-fib_trie-prior-to-register_netdev_notifier-call.patch