Kuniyuki Iwashima a22730b1b4 kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). ... syzkaller found a memory leak in kcm_sendmsg(), and commit c821a88bd7 ("kcm: Fix memory leak in error path of kcm_sendmsg()") suppressed it by updating kcm_tx_msg(head)->last_skb if partial data is copied so that the following sendmsg() will resume from the skb. However, we cannot know how many bytes were copied when we get the error. Thus, we could mess up the MSG_MORE queue. When kcm_sendmsg() fails for SOCK_DGRAM, we should purge the queue as we do so for UDP by udp_flush_pending_frames(). Even without this change, when the error occurred, the following sendmsg() resumed from a wrong skb and the queue was messed up. However, we have yet to get such a report, and only syzkaller stumbled on it. So, this can be changed safely. Note this does not change SOCK_SEQPACKET behaviour. Fixes: c821a88bd7 ("kcm: Fix memory leak in error path of kcm_sendmsg()") Fixes: ab7ac4eb98 ("kcm: Kernel Connection Multiplexor module") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230912022753.33327-1-kuniyu@amazon.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>		2023-09-14 10:43:51 +02:00
..
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	ax.25: Update to register_net_sysctl_sz	2023-08-15 15:26:17 -07:00
batman-adv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-24 10:51:39 -07:00
bluetooth	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
bpf	bpf: Prevent inlining of bpf_fentry_test7()	2023-08-30 08:36:17 +02:00
bpfilter
bridge	sysctl-6.6-rc1	2023-08-29 17:39:15 -07:00
caif	sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)	2023-06-24 15:50:13 -07:00
can	net: annotate data-races around sk->sk_tsflags	2023-09-01 07:27:33 +01:00
ceph	libceph: do not include crypto/algapi.h	2023-08-24 11:24:37 +02:00
core	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
dcb	net: dcb: choose correct policy to parse DCB_ATTR_BCN	2023-08-01 21:07:46 -07:00
dccp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-29 07:44:56 +02:00
devlink	devlink: move devlink_notify_register/unregister() to dev.c	2023-08-28 08:02:24 -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	ethtool: netlink: always pass genl_info to .prepare_data	2023-08-15 15:01:03 -07:00
handshake	net/handshake: fix null-ptr-deref in handshake_nl_done_doit()	2023-09-01 07:25:14 +01:00
hsr	hsr: Fix uninit-value access in fill_frame_info()	2023-09-11 08:28:36 +01:00
ieee802154	sysctl-6.6-rc1	2023-08-29 17:39:15 -07:00
ife
ipv4	tcp: Fix bind() regression for v4-mapped-v6 non-wildcard address.	2023-09-13 07:18:04 +01:00
ipv6	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
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	inet: introduce inet->inet_flags	2023-08-16 11:09:16 +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	wireless-next patches for v6.6	2023-08-25 18:35:09 -07:00
mac802154	Core WPAN changes:	2023-06-24 15:41:46 -07:00
mctp	sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)	2023-06-24 15:50:13 -07:00
mpls	networking: Update to register_net_sysctl_sz	2023-08-15 15:26:18 -07:00
mptcp	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
ncsi	genetlink: make genl_info->nlhdr const	2023-08-15 14:54:44 -07:00
netfilter	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
netlabel	netlabel: Remove unused declaration netlbl_cipsov4_doi_free()	2023-08-02 12:28:22 -07:00
netlink	genetlink: add a family pointer to struct genl_info	2023-08-15 15:01:03 -07:00
netrom	netrom: Deny concurrent connect().	2023-08-28 06:58:46 +01:00
nfc	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
nsh
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-18 12:44:56 -07:00
packet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-10 14:10:53 -07:00
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	sysctl-6.6-rc1	2023-08-29 17:39:15 -07:00
rfkill
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: sch_qfq: Fix UAF in qfq_dequeue()	2023-09-05 08:54:12 +02:00
sctp	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
smc	net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add	2023-09-10 19:31:42 +01:00
strparser
sunrpc	NFS CLient Updates for Linux 6.6	2023-08-31 15:36:41 -07:00
switchdev	net: switchdev: Add a helper to replay objects on a bridge port	2023-07-21 08:54:03 +01:00
tipc	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
tls	net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()	2023-09-12 09:51:49 +02:00
unix	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
vmw_vsock	vsock: Remove unused function declarations	2023-07-31 14:41:08 -07:00
wireless	wifi: nl80211: Remove unused declaration nl80211_pmsr_dump_results()	2023-08-22 21:40:40 +02:00
x25	sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)	2023-06-24 15:50:13 -07:00
xdp	xsk: Fix xsk_diag use-after-free error during socket cleanup	2023-08-31 13:21:11 +02:00
xfrm	sysctl-6.6-rc1	2023-08-29 17:39:15 -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	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
sysctl_net.c	sysctl: Add size to register_net_sysctl function	2023-08-15 15:26:17 -07:00