Xie He dec629e972 net: lapb: Copy the skb before sending a packet ... [ Upstream commit 88c7a9fd9b ] When sending a packet, we will prepend it with an LAPB header. This modifies the shared parts of a cloned skb, so we should copy the skb rather than just clone it, before we prepend the header. In "Documentation/networking/driver.rst" (the 2nd point), it states that drivers shouldn't modify the shared parts of a cloned skb when transmitting. The "dev_queue_xmit_nit" function in "net/core/dev.c", which is called when an skb is being sent, clones the skb and sents the clone to AF_PACKET sockets. Because the LAPB drivers first remove a 1-byte pseudo-header before handing over the skb to us, if we don't copy the skb before prepending the LAPB header, the first byte of the packets received on AF_PACKET sockets can be corrupted. Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Signed-off-by: Xie He <xie.he.0141@gmail.com> Acked-by: Martin Schiller <ms@dev.tdt.de> Link: https://lore.kernel.org/r/20210201055706.415842-1-xie.he.0141@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-02-10 09:29:14 +01:00
..
6lowpan
9p	net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid	2020-10-12 10:05:47 +02:00
802
8021q	net: vlan: avoid leaks on register_vlan_dev() failures	2021-01-17 14:16:55 +01:00
appletalk
atm	net: atm: fix update of position index in lec_seq_next	2020-10-31 12:26:30 -07:00
ax25
batman-adv	batman-adv: Don't always reallocate the fragmentation skb head	2020-11-27 08:02:55 +01:00
bluetooth	Bluetooth: Fix attempting to set RPA timeout when unsupported	2021-01-09 13:46:23 +01:00
bpf	bpf: Reject too big ctx_size_in for raw_tp test run	2021-01-27 11:55:07 +01:00
bpfilter	Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"	2020-10-15 12:33:24 -07:00
bridge	bridge: Fix a deadlock when enabling multicast snooping	2020-12-07 17:14:43 -08:00
caif
can	can: isotp: isotp_getname(): fix kernel information leak	2021-01-17 14:17:05 +01:00
ceph	libceph: clear con->out_msg on Policy::stateful_server faults	2020-10-12 15:29:27 +02:00
core	net: core: devlink: use right genl user_ptr when handling port param get/set	2021-01-27 11:55:26 +01:00
dcb	net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands	2021-01-23 16:04:01 +01:00
dccp	tcp: fix race condition when creating child sockets from syncookies	2020-11-23 16:32:33 -08:00
decnet
dns_resolver
dsa	net: dsa: unbind all switches from tree when DSA master unbinds	2021-01-23 16:04:05 +01:00
ethernet
ethtool	ethtool: fix string set id check	2021-01-06 14:56:48 +01:00
hsr	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
ieee802154	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
ife
ipv4	tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN	2021-02-03 23:28:52 +01:00
ipv6	ipv6: set multicast flag on the multicast route	2021-01-27 11:55:24 +01:00
iucv	net/af_iucv: set correct sk_protocol for child sockets	2020-11-21 14:43:45 -08:00
kcm
key
l2tp	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
l3mdev
lapb	net: lapb: Copy the skb before sending a packet	2021-02-10 09:29:14 +01:00
llc
mac80211	mac80211: fix encryption key selection for 802.3 xmit	2021-02-07 15:37:15 +01:00
mac802154
mpls	mpls: load mpls_gso after mpls_iptunnel	2020-10-20 21:16:45 -07:00
mptcp	mptcp: fix security context on server socket	2021-01-06 14:56:48 +01:00
ncsi	net/ncsi: Use real net-device for response handler	2021-01-12 20:18:10 +01:00
netfilter	netfilter: nft_dynset: add timeout extension to template	2021-02-03 23:28:44 +01:00
netlabel	netlabel: fix an uninitialized warning in netlbl_unlabel_staticlist()	2020-11-14 12:07:57 -08:00
netlink	netlink: export policy in extended ACK	2020-10-09 20:22:32 -07:00
netrom
nfc	NFC: fix possible resource leak	2021-02-03 23:28:51 +01:00
nsh
openvswitch	openvswitch: fix error return code in validate_and_copy_dec_ttl()	2020-12-04 15:43:14 -08:00
packet	net/packet: fix packet receive on L3 devices without visible hard header	2020-11-23 17:29:36 -08:00
phonet
psample	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
qrtr	net: qrtr: ns: Fix the incorrect usage of rcu_read_lock()	2020-10-06 06:01:35 -07:00
rds	RDMA: Add rdma_connect_locked()	2020-10-28 09:14:49 -03:00
rfkill	rfkill: Fix use-after-free in rfkill_resume()	2020-11-12 09:18:06 +01:00
rose	rose: Fix Null pointer dereference in rose_send_frame()	2020-11-20 10:04:58 -08:00
rxrpc	rxrpc: Fix deadlock around release of dst cached on udp tunnel	2021-02-10 09:29:13 +01:00
sched	net_sched: reject silly cell_log in qdisc_get_rtab()	2021-01-27 11:55:24 +01:00
sctp	sctp: change to hold/put transport for proto_unreach_timer	2020-11-14 11:57:12 -08:00
smc	net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid()	2020-11-19 10:59:19 -08:00
strparser
sunrpc	SUNRPC: Fix NFS READs that start at non-page-aligned offsets	2021-02-10 09:29:13 +01:00
switchdev	net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP	2021-02-07 15:37:12 +01:00
tipc	tipc: fix NULL deref in tipc_link_xmit()	2021-01-23 16:04:00 +01:00
tls	net/tls: Protect from calling tls_dev_del for TLS RX twice	2020-11-25 17:31:06 -08:00
unix	networking changes for the 5.10 merge window	2020-10-15 18:42:13 -07:00
vmw_vsock	vsock: fix the race conditions in multi-transport support	2021-02-03 23:28:52 +01:00
wimax	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
wireless	wext: fix NULL-ptr-dereference with cfg80211's lack of commit()	2021-02-03 23:28:38 +01:00
x25	net/x25: prevent a couple of overflows	2020-12-02 17:26:36 -08:00
xdp	xsk: Clear pool even for inactive queues	2021-01-27 11:55:10 +01:00
xfrm	xfrm: Fix wraparound in xfrm_policy_addr_delta()	2021-02-03 23:28:45 +01:00
compat.c	iov_iter: transparently handle compat iovecs in import_iovec	2020-10-03 00:02:13 -04:00
devres.c
Kconfig	drop_monitor: Convert to using devlink tracepoint	2020-09-30 18:01:26 -07:00
Makefile
socket.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-10-05 18:40:01 -07:00
sysctl_net.c