John Fastabend 4363023d26 bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list ... When skb has a frag_list its possible for skb_to_sgvec() to fail. This happens when the scatterlist has fewer elements to store pages than would be needed for the initial skb plus any of its frags. This case appears rare, but is possible when running an RX parser/verdict programs exposed to the internet. Currently, when this happens we throw an error, break the pipe, and kfree the msg. This effectively breaks the application or forces it to do a retry. Lets catch this case and handle it by doing an skb_linearize() on any skb we receive with frags. At this point skb_to_sgvec should not fail because the failing conditions would require frags to be in place. Fixes: 604326b41a6fb ("bpf, sockmap: convert to generic sk_msg interface") Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com> Link: https://lore.kernel.org/bpf/160556576837.73229.14800682790808797635.stgit@john-XPS-13-9370		2020-11-18 00:14:04 +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: Fixed signedness in vlan_group_prealloc_vid()	2020-09-28 00:51:39 -07:00
appletalk
atm	net: atm: fix update of position index in lec_seq_next	2020-10-31 12:26:30 -07:00
ax25
batman-adv	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
bluetooth	Bluetooth: Replace zero-length array with flexible-array member	2020-10-29 17:22:59 -05:00
bpf	bpf: fix raw_tp test run in preempt kernel	2020-09-30 08:34:08 -07:00
bpfilter	Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"	2020-10-15 12:33:24 -07:00
bridge	netfilter: ebtables: Fixes dropping of small packets in bridge nat	2020-10-20 13:54:53 +02:00
caif
can	can: isotp: padlen(): make const array static, makes object smaller	2020-11-03 22:30:32 +01:00
ceph	libceph: clear con->out_msg on Policy::stateful_server faults	2020-10-12 15:29:27 +02:00
core	bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list	2020-11-18 00:14:04 +01:00
dcb
dccp	inet: remove icsk_ack.blocked	2020-09-30 14:21:30 -07:00
decnet
dns_resolver
dsa	net: dsa: tag_ksz: KSZ8795 and KSZ9477 also use tail tags	2020-10-19 17:32:50 -07:00
ethernet
ethtool	ethtool: correct policy for ETHTOOL_MSG_CHANNELS_SET	2020-10-08 16:06:01 -07:00
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	bpf, sockmap: Ensure SO_RCVBUF memory is observed on ingress redirect	2020-11-18 00:12:34 +01:00
ipv6	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec	2020-11-04 08:12:52 -08:00
iucv	net/iucv: fix indentation in __iucv_message_receive()	2020-10-03 16:51:07 -07:00
kcm
key
l2tp	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
l3mdev
lapb
llc
mac80211	mac80211: don't require VHT elements for HE on 2.4 GHz	2020-10-30 10:22:42 +01:00
mac802154
mpls	mpls: load mpls_gso after mpls_iptunnel	2020-10-20 21:16:45 -07:00
mptcp	mptcp: token: fix unititialized variable	2020-11-03 13:08:30 -08:00
ncsi	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
netfilter	netfilter: ipset: Update byte and packet counters regardless of whether they match	2020-10-31 11:11:11 +01:00
netlabel	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
netlink	netlink: export policy in extended ACK	2020-10-09 20:22:32 -07:00
netrom
nfc	nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download()	2020-10-20 17:06:22 -07:00
nsh
openvswitch	net: openvswitch: silence suspicious RCU usage warning	2020-11-03 16:57:42 -08:00
packet	net/packet: Fix a comment about network_header	2020-09-19 16:40:48 -07:00
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
rose
rxrpc	rxrpc: Fix loss of final ack on shutdown	2020-10-15 13:28:00 +01:00
sched	netem: fix zero division in tabledist	2020-10-29 11:45:47 -07:00
sctp	sctp: Fix COMM_LOST/CANT_STR_ASSOC err reporting on big-endian platforms	2020-11-02 15:03:25 -08:00
smc	flexible-array member conversion patches for 5.10-rc2	2020-10-31 14:31:28 -07:00
strparser
sunrpc	The one new feature this time, from Anna Schumaker, is READ_PLUS, which	2020-10-22 09:44:27 -07:00
switchdev	net: switchdev: Fixed kerneldoc warning	2020-09-23 17:46:31 -07:00
tipc	Networking fixes for 5.10-rc2.	2020-10-29 12:55:02 -07:00
tls	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-10-15 12:43:21 -07:00
unix	networking changes for the 5.10 merge window	2020-10-15 18:42:13 -07:00
vmw_vsock	vsock: use ns_capable_noaudit() on socket create	2020-10-26 16:22:42 -07:00
wimax	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
wireless	cfg80211: regulatory: Fix inconsistent format argument	2020-10-30 10:06:56 +01:00
x25
xdp	xsk: Fix possible memory leak at socket close	2020-10-29 15:19:56 +01:00
xfrm	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec	2020-11-04 08:12:52 -08:00
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