Stephen Hemminger 14f91ab8d3 sch/netem: fix use after free in netem_dequeue ... commit 3b3a2a9c63 upstream. If netem_dequeue() enqueues packet to inner qdisc and that qdisc returns __NET_XMIT_STOLEN. The packet is dropped but qdisc_tree_reduce_backlog() is not called to update the parent's q.qlen, leading to the similar use-after-free as Commit e04991a48dbaf382 ("netem: fix return value if duplicate enqueue fails") Commands to trigger KASAN UaF: ip link add type dummy ip link set lo up ip link set dummy0 up tc qdisc add dev lo parent root handle 1: drr tc filter add dev lo parent 1: basic classid 1:1 tc class add dev lo classid 1:1 drr tc qdisc add dev lo parent 1:1 handle 2: netem tc qdisc add dev lo parent 2: handle 3: drr tc filter add dev lo parent 3: basic classid 3:1 action mirred egress redirect dev dummy0 tc class add dev lo classid 3:1 drr ping -c1 -W0.01 localhost # Trigger bug tc class del dev lo classid 1:1 tc class add dev lo classid 1:1 drr ping -c1 -W0.01 localhost # UaF Fixes: 50612537e9 ("netem: fix classful handling") Reported-by: Budimir Markovic <markovicbudimir@gmail.com> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Link: https://patch.msgid.link/20240901182438.4992-1-stephen@networkplumber.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-09-12 11:07:42 +02:00
..
6lowpan
9p	net/9p: fix uninit-value in p9_client_rpc()	2024-06-16 13:39:58 +02:00
802	mrp: introduce active flags to prevent UAF when applicant uninit	2022-12-31 13:14:42 +01:00
8021q	vlan: skip nested type that is not IFLA_VLAN_QOS_MAPPING	2024-02-23 08:54:27 +01:00
appletalk	appletalk: Fix Use-After-Free in atalk_ioctl	2023-12-20 15:17:37 +01:00
atm	atm: Fix Use-After-Free in do_vcc_ioctl	2023-12-20 15:17:35 +01:00
ax25
batman-adv	batman-adv: Don't accept TT entries for out-of-spec VIDs	2024-07-05 09:14:49 +02:00
bluetooth	Bluetooth: MGMT: Add error handling to pair_device()	2024-09-04 13:23:35 +02:00
bpf	bpf: Set run context for rawtp test_run callback	2024-07-05 09:14:06 +02:00
bpfilter
bridge	netfilter: nf_queue: drop packets with cloned unconfirmed conntracks	2024-09-04 13:23:19 +02:00
caif	net: caif: Fix use-after-free in cfusbl_device_notify()	2023-03-17 08:48:54 +01:00
can	net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new	2024-07-05 09:14:48 +02:00
ceph	libceph: fix race between delayed_work() and ceph_monc_stop()	2024-07-18 13:07:42 +02:00
core	ethtool: check device is present when getting link settings	2024-09-04 13:23:40 +02:00
dcb	net: dcb: choose correct policy to parse DCB_ATTR_BCN	2023-08-11 15:13:53 +02:00
dccp	Fix race for duplicate reqsk on identical SYN	2024-07-05 09:14:41 +02:00
dns_resolver	keys, dns: Fix size check of V1 server-list header	2024-01-25 14:52:46 -08:00
dsa	net: dsa: tag_sja1105: always prefer source port information from INCL_SRCPT	2024-06-16 13:39:54 +02:00
ethernet	ethernet: Add helper for assigning packet type when dest address does not match device address	2024-05-02 16:24:49 +02:00
ethtool	ethtool: check device is present when getting link settings	2024-09-04 13:23:40 +02:00
hsr	hsr: Handle failures in module init	2024-03-26 18:21:36 -04:00
ieee802154	net: drop nopreempt requirement on sock_prot_inuse_add()	2024-07-05 09:14:08 +02:00
ife	net: sched: ife: fix potential use-after-free	2024-01-05 15:13:29 +01:00
ipv4	netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init().	2024-08-19 05:45:32 +02:00
ipv6	ipv6: prevent possible UAF in ip6_xmit()	2024-09-04 13:23:34 +02:00
iucv	s390/iucv: fix receive buffer virtual vs physical address confusion	2024-09-04 13:23:27 +02:00
kcm	kcm: Serialise kcm_sendmsg() for the same socket.	2024-09-04 13:23:32 +02:00
key	net: af_key: fix sadb_x_filter validation	2023-08-26 14:23:32 +02:00
l2tp	l2tp: fix lockdep splat	2024-08-19 05:45:36 +02:00
l3mdev
lapb
llc	llc: call sock_orphan() at release time	2024-02-23 08:54:54 +01:00
mac80211	wifi: mac80211: fix BA session teardown race	2024-09-04 13:23:20 +02:00
mac802154	net: mac802154: Fix racy device stats updates by DEV_STATS_INC() and DEV_STATS_ADD()	2024-07-27 10:46:13 +02:00
mctp	mctp: perform route lookups under a RCU read-side lock	2023-10-25 11:58:59 +02:00
mpls	net: mpls: fix stale pointer if allocation fails during device rename	2023-02-22 12:57:09 +01:00
mptcp	mptcp: sched: check both backup in retrans	2024-09-04 13:23:38 +02:00
ncsi	net/ncsi: Fix the multi thread manner of NCSI driver	2024-07-05 09:14:06 +02:00
netfilter	netfilter: flowtable: validate vlan header	2024-09-04 13:23:34 +02:00
netlabel	calipso: fix memory leak in netlbl_calipso_add_pass()	2024-01-25 14:52:33 -08:00
netlink	netlink: hold nlk->cb_mutex longer in __netlink_dump_start()	2024-09-04 13:23:25 +02:00
netrom	netrom: Fix a memory leak in nr_heartbeat_expiry()	2024-07-05 09:14:29 +02:00
nfc	nfc: nci: Fix handling of zero-length payload packets in nci_rx_work()	2024-06-16 13:39:48 +02:00
nsh	nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().	2024-05-17 11:50:48 +02:00
openvswitch	openvswitch: Set the skbuff pkt_type for proper pmtud support.	2024-06-16 13:39:47 +02:00
packet	af_packet: Handle outgoing VLAN packets without hardware offloading	2024-08-19 05:45:11 +02:00
phonet	phonet: fix rtm_phonet_notify() skb allocation	2024-05-17 11:50:58 +02:00
psample	psample: Require 'CAP_NET_ADMIN' when joining "packets" group	2023-12-13 18:36:37 +01:00
qrtr	net: qrtr: ns: Fix module refcnt	2024-06-16 13:39:33 +02:00
rds	net:rds: Fix possible deadlock in rds_message_put	2024-09-04 13:23:39 +02:00
rfkill	net: rfkill: gpio: set GPIO direction	2024-01-05 15:13:34 +01:00
rose	net/rose: fix races in rose_kill_by_device()	2024-01-05 15:13:29 +01:00
rxrpc	rxrpc: Fix response to PING RESPONSE ACKs to a dead call	2024-02-23 08:54:58 +01:00
sched	sch/netem: fix use after free in netem_dequeue	2024-09-12 11:07:42 +02:00
sctp	sctp: Fix null-ptr-deref in reuseport_add_sock().	2024-08-19 05:45:35 +02:00
smc	net/smc: set rmb's SG_MAX_SINGLE_ALLOC limitation only when CONFIG_ARCH_NO_SG_CHAIN is defined	2024-08-19 05:44:56 +02:00
strparser
sunrpc	sunrpc: use the struct net as the svc proc private	2024-09-04 13:23:30 +02:00
switchdev
tipc	tipc: Return non-zero value from tipc_udp_addr2str() on error	2024-08-19 05:45:24 +02:00
tls	tls: fix race between tx work scheduling and socket close	2024-08-19 05:45:49 +02:00
unix	af_unix: Read with MSG_PEEK loops if the first unread byte is OOB	2024-07-05 09:14:19 +02:00
vmw_vsock	virtio/vsock: fix logic which reduces credit update messages	2024-01-25 14:52:38 -08:00
wireless	wifi: cfg80211: make hash table duplicates more survivable	2024-09-12 11:07:41 +02:00
x25	net/x25: fix incorrect parameter validation in the x25_getsockopt() function	2024-03-26 18:21:23 -04:00
xdp	net: drop nopreempt requirement on sock_prot_inuse_add()	2024-07-05 09:14:08 +02:00
xfrm	net: fix __dst_negative_advice() race	2024-06-16 13:39:59 +02:00
compat.c
devres.c
Kconfig	Remove DECnet support from kernel	2023-06-21 15:59:15 +02:00
Makefile	Remove DECnet support from kernel	2023-06-21 15:59:15 +02:00
socket.c	net: Save and restore msg_namelen in sock_sendmsg	2024-01-15 18:51:16 +01:00
sysctl_net.c