Eric Dumazet 615501d41b udp: annotate data-races around up->pending ... [ Upstream commit 482521d8e0 ] up->pending can be read without holding the socket lock, as pointed out by syzbot [1] Add READ_ONCE() in lockless contexts, and WRITE_ONCE() on write side. [1] BUG: KCSAN: data-race in udpv6_sendmsg / udpv6_sendmsg write to 0xffff88814e5eadf0 of 4 bytes by task 15547 on cpu 1: udpv6_sendmsg+0x1405/0x1530 net/ipv6/udp.c:1596 inet6_sendmsg+0x63/0x80 net/ipv6/af_inet6.c:657 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x257/0x310 net/socket.c:2192 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0x78/0x90 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b read to 0xffff88814e5eadf0 of 4 bytes by task 15551 on cpu 0: udpv6_sendmsg+0x22c/0x1530 net/ipv6/udp.c:1373 inet6_sendmsg+0x63/0x80 net/ipv6/af_inet6.c:657 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x37c/0x4d0 net/socket.c:2586 ___sys_sendmsg net/socket.c:2640 [inline] __sys_sendmmsg+0x269/0x500 net/socket.c:2726 __do_sys_sendmmsg net/socket.c:2755 [inline] __se_sys_sendmmsg net/socket.c:2752 [inline] __x64_sys_sendmmsg+0x57/0x60 net/socket.c:2752 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b value changed: 0x00000000 -> 0x0000000a Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 15551 Comm: syz-executor.1 Tainted: G W 6.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Reported-by: syzbot+8d482d0e407f665d9d10@syzkaller.appspotmail.com Link: https://lore.kernel.org/netdev/0000000000009e46c3060ebcdffd@google.com/ Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-01-25 15:27:49 -08:00
..
6lowpan
9p	net: 9p: avoid freeing uninit memory in p9pdu_vreadf	2024-01-01 12:39:04 +00:00
802
8021q	net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev()	2024-01-01 12:38:57 +00:00
appletalk	appletalk: Fix Use-After-Free in atalk_ioctl	2023-12-20 17:00:19 +01:00
atm	atm: Fix Use-After-Free in do_vcc_ioctl	2023-12-20 17:00:17 +01:00
ax25
batman-adv	net: vlan: introduce skb_vlan_eth_hdr()	2023-12-20 17:00:16 +01:00
bluetooth	Bluetooth: Fix atomicity violation in {min,max}_key_size_set	2024-01-25 15:27:43 -08:00
bpf
bpfilter
bridge	netfilter: nf_conntrack_bridge: initialize err to 0	2023-11-28 17:07:05 +00:00
caif
can	net: annotate data-races around sk->sk_tsflags	2024-01-10 17:10:23 +01:00
ceph	libceph: use kernel_connect()	2023-10-19 23:08:56 +02:00
core	Revert "net: rtnetlink: Enslave device before bringing it up"	2024-01-25 15:27:43 -08:00
dcb	net: dcb: choose correct policy to parse DCB_ATTR_BCN	2023-08-11 12:08:17 +02:00
dccp	dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses.	2023-11-20 11:52:16 +01:00
devlink	devlink: remove reload failed checks in params get/set callbacks	2023-09-23 11:11:01 +02:00
dns_resolver	keys, dns: Fix size check of V1 server-list header	2024-01-25 15:27:38 -08:00
dsa	net: dsa: sja1105: always enable the send_meta options	2023-07-19 16:22:06 +02:00
ethernet
ethtool	ethtool: don't propagate EOPNOTSUPP from dumps	2024-01-10 17:10:32 +01:00
hsr	hsr: Prevent use after free in prp_create_tagged_frame()	2023-11-20 11:52:15 +01:00
ieee802154
ife	net: sched: ife: fix potential use-after-free	2024-01-01 12:38:56 +00:00
ipv4	udp: annotate data-races around up->pending	2024-01-25 15:27:49 -08:00
ipv6	udp: annotate data-races around up->pending	2024-01-25 15:27:49 -08:00
iucv
kcm	kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().	2023-09-19 12:28:10 +02:00
key	net: af_key: fix sadb_x_filter validation	2023-08-23 17:52:32 +02:00
l2tp	udp: annotate data-races around udp->encap_type	2024-01-10 17:10:28 +01:00
l3mdev
lapb
llc	llc: verify mac len before reading mac header	2023-11-20 11:52:15 +01:00
mac80211	wifi: mac80211: handle 320 MHz in ieee80211_ht_cap_ie_to_sta_ht_cap	2024-01-20 11:50:03 +01:00
mac802154
mctp	mctp: perform route lookups under a RCU read-side lock	2023-10-19 23:08:57 +02:00
mpls
mptcp	mptcp: refine opt_mp_capable determination	2024-01-25 15:27:49 -08:00
ncsi	net/ncsi: Fix netlink major/minor version numbers	2024-01-25 15:27:24 -08:00
netfilter	netfilter: nf_tables: check if catch-all set element is active in next generation	2024-01-25 15:27:42 -08:00
netlabel	calipso: fix memory leak in netlbl_calipso_add_pass()	2024-01-25 15:27:20 -08:00
netlink	drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group	2023-12-13 18:39:12 +01:00
netrom	netrom: Deny concurrent connect().	2023-09-13 09:42:35 +02:00
nfc	nfc: llcp_core: Hold a ref to llcp_local->dev when holding a ref to llcp_local	2024-01-10 17:10:22 +01:00
nsh
openvswitch	net/sched: act_ct: Always fill offloading tuple iifidx	2024-01-10 17:10:36 +01:00
packet	packet: Move reference count in packet_sock to atomic_long_t	2023-12-13 18:39:20 +01:00
phonet
psample	psample: Require 'CAP_NET_ADMIN' when joining "packets" group	2023-12-13 18:39:11 +01:00
qrtr	net: qrtr: ns: Return 0 if server port is not present	2024-01-20 11:50:09 +01:00
rds	net: prevent address rewrite in kernel_bind()	2023-10-19 23:08:50 +02:00
rfkill	net: rfkill: gpio: set GPIO direction	2024-01-01 12:39:04 +00:00
rose	net/rose: fix races in rose_kill_by_device()	2024-01-01 12:38:57 +00:00
rxrpc
sched	net/sched: act_ct: fix skb leak and crash on ooo frags	2024-01-25 15:27:31 -08:00
sctp	sctp: fix busy polling	2024-01-25 15:27:30 -08:00
smc	net/smc: fix invalid link access in dumping SMC-R connections	2024-01-10 17:10:25 +01:00
strparser
sunrpc	SUNRPC: fix _xprt_switch_find_current_entry logic	2024-01-25 15:27:23 -08:00
switchdev
tipc	tipc: Fix kernel-infoleak due to uninitialized TLV value	2023-11-28 17:07:05 +00:00
tls	net: tls, update curr on splice as well	2023-12-20 17:00:28 +01:00
unix	bpf: sockmap, fix proto update hook to avoid dup calls	2024-01-25 15:27:30 -08:00
vmw_vsock	virtio/vsock: fix logic which reduces credit update messages	2024-01-25 15:27:28 -08:00
wireless	wifi: cfg80211: lock wiphy mutex for rfkill poll	2024-01-20 11:50:03 +01:00
x25
xdp	xsk: Skip polling event check for unbound socket	2023-12-13 18:39:08 +01:00
xfrm	net: xfrm: skip policies marked as dead while reinserting policies	2023-10-25 12:03:12 +02:00
compat.c
devres.c
Kconfig
Kconfig.debug
Makefile	devlink: move code to a dedicated directory	2023-08-30 16:11:00 +02:00
socket.c	splice, net: Add a splice_eof op to file-ops and socket-ops	2024-01-10 17:10:27 +01:00
sysctl_net.c