linux_dsm_epyc7002/net
Aleksandr Nogikh 4a31baf55f net: add kcov handle to skb extensions
[ Upstream commit 6370cc3bbd8a0f9bf975b013781243ab147876c6 ]

Remote KCOV coverage collection enables coverage-guided fuzzing of the
code that is not reachable during normal system call execution. It is
especially helpful for fuzzing networking subsystems, where it is
common to perform packet handling in separate work queues even for the
packets that originated directly from the user space.

Enable coverage-guided frame injection by adding kcov remote handle to
skb extensions. Default initialization in __alloc_skb and
__build_skb_around ensures that no socket buffer that was generated
during a system call will be missed.

Code that is of interest and that performs packet processing should be
annotated with kcov_remote_start()/kcov_remote_stop().

An alternative approach is to determine kcov_handle solely on the
basis of the device/interface that received the specific socket
buffer. However, in this case it would be impossible to distinguish
between packets that originated during normal background network
processes or were intentionally injected from the user space.

Signed-off-by: Aleksandr Nogikh <nogikh@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-28 14:35:33 +02:00
..
6lowpan
9p net: 9p: advance iov on empty read 2021-04-07 15:00:08 +02:00
802
8021q net: vlan: avoid leaks on register_vlan_dev() failures 2021-01-17 14:16:55 +01:00
appletalk appletalk: Fix skb allocation size in loopback case 2021-04-07 15:00:08 +02:00
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: Avoid WARN_ON timing related checks 2021-06-23 14:42:41 +02:00
bluetooth Bluetooth: mgmt: Fix the command returns garbage parameter value 2021-07-19 09:44:54 +02:00
bpf bpf: Reject too big ctx_size_in for raw_tp test run 2021-01-27 11:55:07 +01:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-07-14 16:56:29 +02:00
bridge net: bridge: sync fdb to new unicast-filtering ports 2021-07-25 14:36:19 +02:00
caif net: caif: fix memory leak in cfusbl_device_notify 2021-06-10 13:39:25 +02:00
can can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0 2021-07-14 16:56:27 +02:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-10-12 15:29:27 +02:00
core net: add kcov handle to skb extensions 2021-07-28 14:35:33 +02:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-23 16:04:01 +01:00
dccp ipv6: weaken the v4mapped source check 2021-03-30 14:32:01 +02:00
decnet
dns_resolver
dsa net: dsa: properly check for the bridge_leave methods in dsa_switch_bridge_leave() 2021-07-25 14:36:20 +02:00
ethernet
ethtool net: ethtool: clear heap allocations for ethtool function 2021-06-30 08:47:20 -04:00
hsr net: hsr: fix mac_len checks 2021-06-03 09:00:50 +02:00
ieee802154 net: ieee802154: fix null deref in parse dev addr 2021-06-18 10:00:03 +02:00
ife
ipv4 udp: annotate data races around unix_sk(sk)->gso_size 2021-07-25 14:36:22 +02:00
ipv6 udp: annotate data races around unix_sk(sk)->gso_size 2021-07-25 14:36:22 +02:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:34:05 +01:00
kcm
key af_key: relax availability checks for skb size calculation 2021-02-13 13:55:02 +01:00
l2tp net: l2tp: reduce log level of messages in receive path, add counter instead 2021-03-17 17:06:11 +01:00
l3mdev
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:29:14 +01:00
llc
mac80211 mac80211: consider per-CPU statistics if present 2021-07-19 09:44:53 +02:00
mac802154 net: mac802154: Fix general protection fault 2021-04-14 08:42:13 +02:00
mpls net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-17 17:06:11 +01:00
mptcp mptcp: generate subflow hmac after mptcp_finish_join() 2021-07-14 16:56:17 +02:00
ncsi net/ncsi: Avoid channel_monitor hrtimer deadlock 2021-04-14 08:42:08 +02:00
netfilter netfilter: ctnetlink: suspicious RCU usage in ctnetlink_dump_helpinfo 2021-07-25 14:36:19 +02:00
netlabel netlabel: Fix memory leak in netlbl_mgmt_add_common 2021-07-14 16:56:22 +02:00
netlink netlink: disable IRQs for netlink_lock_table() 2021-06-16 12:01:36 +02:00
netrom
nfc net/nfc/rawsock.c: fix a permission check bug 2021-06-16 12:01:35 +02:00
nsh
openvswitch openvswitch: meter: fix race when getting now_ms. 2021-06-03 09:00:47 +02:00
packet net/packet: annotate accesses to po->ifindex 2021-06-30 08:47:22 -04:00
phonet
psample net: psample: Fix netlink skb length with tunnel info 2021-03-07 12:34:07 +01:00
qrtr net: qrtr: ns: Fix error return code in qrtr_ns_init() 2021-07-14 16:56:16 +02:00
rds net: rds: fix memory leak in rds_recvmsg 2021-06-23 14:42:42 +02:00
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 clearance of Tx/Rx ring when releasing a call 2021-02-17 11:02:28 +01:00
sched net/sched: act_ct: remove and free nf_table callbacks 2021-07-25 14:36:19 +02:00
sctp sctp: add size validation when walking chunks 2021-07-19 09:44:55 +02:00
smc net/smc: remove device from smcd_dev_list after failed device_add() 2021-06-03 09:00:48 +02:00
strparser
sunrpc SUNRPC: prevent port reuse on transports which don't request it. 2021-07-20 16:05:51 +02:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:37:12 +01:00
tipc net: tipc: fix FB_MTU eat two pages 2021-07-14 16:56:32 +02:00
tls tls: prevent oversized sendfile() hangs by ignoring MSG_MORE 2021-07-14 16:56:24 +02:00
unix net/af_unix: fix a data-race in unix_dgram_sendmsg / unix_release_sock 2021-06-23 14:42:46 +02:00
vmw_vsock vsock: notify server to shutdown when client has pending signal 2021-07-19 09:44:52 +02:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless cfg80211: fix default HE tx bitrate mask in 2G band 2021-07-19 09:44:53 +02:00
x25 net/x25: Return the correct errno code 2021-06-18 10:00:06 +02:00
xdp xsk: Fix broken Tx ring validation 2021-07-14 16:56:23 +02:00
xfrm xfrm: Fix error reporting in xfrm_state_construct. 2021-07-19 09:44:49 +02:00
compat.c net: Return the correct errno code 2021-06-18 10:00:06 +02:00
devres.c
Kconfig drop_monitor: Convert to using devlink tracepoint 2020-09-30 18:01:26 -07:00
Makefile
socket.c net: make get_net_ns return error if NET_NS is disabled 2021-06-23 14:42:44 +02:00
sysctl_net.c