Zhang Changzhong d48db508f9 can: j1939: j1939_xtp_rx_rts_session_new(): abort TP less than 9 bytes ... commit a4fbe70c5cb746441d56b28cf88161d9e0e25378 upstream. The receiver should abort TP if 'total message size' in TP.CM_RTS and TP.CM_BAM is less than 9 or greater than 1785 [1], but currently the j1939 stack only checks the upper bound and the receiver will accept the following broadcast message: vcan1 18ECFF00 [8] 20 08 00 02 FF 00 23 01 vcan1 18EBFF00 [8] 01 00 00 00 00 00 00 00 vcan1 18EBFF00 [8] 02 00 FF FF FF FF FF FF This patch adds check for the lower bound and abort illegal TP. [1] SAE-J1939-82 A.3.4 Row 2 and A.3.6 Row 6. Fixes: 9d71dd0c70 ("can: add support of SAE J1939 protocol") Link: https://lore.kernel.org/all/1634203601-3460-1-git-send-email-zhangchangzhong@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-10-27 09:56:51 +02:00
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6lowpan
9p
802
8021q
appletalk
atm
ax25
batman-adv
bluetooth
bpf
bpfilter
bridge
caif
can	can: j1939: j1939_xtp_rx_rts_session_new(): abort TP less than 9 bytes	2021-10-27 09:56:51 +02:00
ceph
core
dcb
dccp
decnet
dns_resolver
dsa
ethernet
ethtool
hsr
ieee802154
ife
ipv4	tcp: md5: Fix overlap between vrf and non-vrf keys	2021-10-27 09:56:48 +02:00
ipv6	ipv6: When forwarding count rx stats on the orig netdev	2021-10-27 09:56:48 +02:00
iucv
kcm
key
l2tp
l3mdev
lapb
llc
mac80211
mac802154
mpls
mptcp
ncsi
netfilter	netfilter: ipvs: make global sysctl readonly in non-init netns	2021-10-27 09:56:48 +02:00
netlabel
netlink
netrom
nfc	NFC: digital: fix possible memory leak in digital_in_send_sdd_req()	2021-10-20 11:45:04 +02:00
nsh
openvswitch
packet
phonet
psample
qrtr
rds
rfkill
rose
rxrpc
sched	mqprio: Correct stats in mqprio_dump_class_stats().	2021-10-20 11:45:06 +02:00
sctp
smc
strparser
sunrpc
switchdev
tipc
tls
unix
vmw_vsock
wimax
wireless
x25
xdp
xfrm
compat.c
devres.c
Kconfig
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socket.c
sysctl_net.c