linux/net
Phil Sutter 7802db1dd5 net: skb_find_text: Ignore patterns extending past 'to'
[ Upstream commit c4eee56e14 ]

Assume that caller's 'to' offset really represents an upper boundary for
the pattern search, so patterns extending past this offset are to be
rejected.

The old behaviour also was kind of inconsistent when it comes to
fragmentation (or otherwise non-linear skbs): If the pattern started in
between 'to' and 'from' offsets but extended to the next fragment, it
was not found if 'to' offset was still within the current fragment.

Test the new behaviour in a kselftest using iptables' string match.

Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fixes: f72b948dcb ("[NET]: skb_find_text ignores to argument")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Reviewed-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:59:01 +01:00
..
6lowpan
9p net: annotate data-races around sock->ops 2023-08-09 15:32:43 -07:00
802
8021q Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-18 12:44:56 -07:00
appletalk sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
atm sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
ax25 ax25: Kconfig: Update link for linux-ax25.org 2023-09-18 12:56:58 +01:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-24 10:51:39 -07:00
bluetooth Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name 2023-10-13 20:06:33 -07:00
bpf bpf: Prevent inlining of bpf_fentry_test7() 2023-08-30 08:36:17 +02:00
bpfilter net: Use umd_cleanup_helper() 2023-05-31 13:06:57 +02:00
bridge neighbour: fix data-races around n->output 2023-10-01 17:14:37 +01:00
caif sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
can can: isotp: isotp_sendmsg(): fix TX state detection and wait behavior 2023-10-06 12:54:33 +02:00
ceph libceph: use kernel_connect() 2023-10-09 13:35:24 +02:00
core net: skb_find_text: Ignore patterns extending past 'to' 2023-11-20 11:59:01 +01:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-01 21:07:46 -07:00
dccp dccp: fix dccp_v4_err()/dccp_v6_err() again 2023-09-18 07:10:31 +01:00
devlink devlink: Hold devlink lock on health reporter dump get 2023-10-06 15:56:46 -07:00
dns_resolver
dsa net: dsa: mark parsed interface mode for legacy switch drivers 2023-08-09 13:08:09 -07:00
ethernet
ethtool Revert "ethtool: Fix mod state of verbose no_mask bitset" 2023-10-19 09:27:12 -07:00
handshake net/handshake: fix file ref count in handshake_nl_accept_doit() 2023-10-23 10:19:33 -07:00
hsr net: hsr: Add __packed to struct hsr_sup_tlv. 2023-09-18 08:26:19 +01:00
ieee802154 sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
ife
ipv4 tcp_metrics: do not create an entry from tcp_init_metrics() 2023-11-20 11:58:59 +01:00
ipv6 udplite: fix various data-races 2023-11-20 11:58:56 +01:00
iucv
kcm kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). 2023-09-14 10:43:51 +02:00
key Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-18 12:44:56 -07:00
l2tp udp: annotate data-races around udp->encap_type 2023-11-20 11:58:56 +01:00
l3mdev
lapb
llc net/llc/llc_conn.c: fix 4 instances of -Wmissing-variable-declarations 2023-08-09 15:34:28 -07:00
mac80211 wifi: mac80211: fix check for unusable RX result 2023-11-20 11:58:57 +01:00
mac802154 Core WPAN changes: 2023-06-24 15:41:46 -07:00
mctp mctp: perform route lookups under a RCU read-side lock 2023-10-10 19:43:22 -07:00
mpls networking: Update to register_net_sysctl_sz 2023-08-15 15:26:18 -07:00
mptcp mptcp: avoid sending RST when closing the initial subflow 2023-10-19 09:10:00 -07:00
ncsi ncsi: Propagate carrier gain/loss events to the NCSI controller 2023-09-18 07:06:05 +01:00
netfilter netfilter: nf_tables: Drop pointless memset when dumping rules 2023-11-20 11:59:00 +01:00
netlabel netlabel: Remove unused declaration netlbl_cipsov4_doi_free() 2023-08-02 12:28:22 -07:00
netlink netlink: annotate data-races around sk->sk_err 2023-10-04 17:32:54 -07:00
netrom netrom: Deny concurrent connect(). 2023-08-28 06:58:46 +01:00
nfc nfc: nci: fix possible NULL pointer dereference in send_acknowledge() 2023-10-16 17:34:53 -07:00
nsh net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-18 12:44:56 -07:00
packet af_packet: Fix fortified memcpy() without flex array. 2023-10-12 09:15:15 +02:00
phonet sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
psample
qrtr net: qrtr: Handle IPCR control port format of older targets 2023-07-17 09:02:30 +01:00
rds net: prevent address rewrite in kernel_bind() 2023-10-01 19:31:29 +01:00
rfkill net: rfkill: reduce data->mtx scope in rfkill_fop_open 2023-10-11 16:55:10 +02:00
rose sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
rxrpc Networking changes for 6.5. 2023-06-28 16:43:10 -07:00
sched net/sched: act_ct: additional checks for outdated flows 2023-10-25 11:35:57 +02:00
sctp sctp: update hb timer immediately after users change hb_interval 2023-10-04 17:29:58 -07:00
smc net/smc: return the right falback reason when prefix checks fail 2023-10-16 16:37:40 -07:00
strparser
sunrpc SUNRPC/TLS: Lock the lower_xprt during the tls handshake 2023-09-27 15:16:40 -04:00
switchdev net: switchdev: Add a helper to replay objects on a bridge port 2023-07-21 08:54:03 +01:00
tipc tipc: Use size_add() in calls to struct_size() 2023-11-20 11:58:57 +01:00
tls tls: Use size_add() in call to struct_size() 2023-11-20 11:58:57 +01:00
unix Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
vmw_vsock vsock/virtio: initialize the_virtio_vsock before using VQs 2023-10-25 15:49:47 -07:00
wireless wifi: cfg80211: fix off-by-one in element defrag 2023-11-20 11:58:55 +01:00
x25 sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
xdp xdp: Fix zero-size allocation warning in xskq_create() 2023-10-09 16:13:29 +02:00
xfrm ipsec-2023-10-17 2023-10-17 18:21:13 -07:00
compat.c
devres.c
Kconfig bpf: Add fd-based tcx multi-prog infra with link support 2023-07-19 10:07:27 -07:00
Kconfig.debug
Makefile
socket.c net: prevent address rewrite in kernel_bind() 2023-10-01 19:31:29 +01:00
sysctl_net.c sysctl: Add size to register_net_sysctl function 2023-08-15 15:26:17 -07:00