android_kernel_motorola_sm6375/include/net
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Kuniyuki Iwashima d7343f8de0 net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().
[ Upstream commit dfd9248c071a3710c24365897459538551cb7167 ]

KCSAN found a data race in sock_recv_cmsgs() where the read access
to sk->sk_stamp needs READ_ONCE().

BUG: KCSAN: data-race in packet_recvmsg / packet_recvmsg

write (marked) to 0xffff88803c81f258 of 8 bytes by task 19171 on cpu 0:
 sock_write_timestamp include/net/sock.h:2670 [inline]
 sock_recv_cmsgs include/net/sock.h:2722 [inline]
 packet_recvmsg+0xb97/0xd00 net/packet/af_packet.c:3489
 sock_recvmsg_nosec net/socket.c:1019 [inline]
 sock_recvmsg+0x11a/0x130 net/socket.c:1040
 sock_read_iter+0x176/0x220 net/socket.c:1118
 call_read_iter include/linux/fs.h:1845 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x5e0/0x630 fs/read_write.c:470
 ksys_read+0x163/0x1a0 fs/read_write.c:613
 __do_sys_read fs/read_write.c:623 [inline]
 __se_sys_read fs/read_write.c:621 [inline]
 __x64_sys_read+0x41/0x50 fs/read_write.c:621
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

read to 0xffff88803c81f258 of 8 bytes by task 19183 on cpu 1:
 sock_recv_cmsgs include/net/sock.h:2721 [inline]
 packet_recvmsg+0xb64/0xd00 net/packet/af_packet.c:3489
 sock_recvmsg_nosec net/socket.c:1019 [inline]
 sock_recvmsg+0x11a/0x130 net/socket.c:1040
 sock_read_iter+0x176/0x220 net/socket.c:1118
 call_read_iter include/linux/fs.h:1845 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x5e0/0x630 fs/read_write.c:470
 ksys_read+0x163/0x1a0 fs/read_write.c:613
 __do_sys_read fs/read_write.c:623 [inline]
 __se_sys_read fs/read_write.c:621 [inline]
 __x64_sys_read+0x41/0x50 fs/read_write.c:621
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

value changed: 0xffffffffc4653600 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 19183 Comm: syz-executor.5 Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014

Fixes: 6c7c98bad4 ("sock: avoid dirtying sk_stamp, if possible")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230508175543.55756-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-30 12:44:01 +01:00
..
9p
bluetooth Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put 2022-08-03 11:59:37 +02:00
caif
iucv
netfilter netfilter: nf_tables: deactivate anonymous set from preparation phase 2023-05-17 11:35:57 +02:00
netns ipv4: convert fib_num_tclassid_users to atomic_t 2021-12-08 09:01:12 +01:00
nfc NFC: add NCI_UNREG flag to eliminate the race 2021-12-01 09:23:35 +01:00
phonet
sctp sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop 2023-03-11 16:44:11 +01:00
tc_act net/sched: act_pedit: really ensure the skb is writable 2022-05-18 09:47:25 +02:00
6lowpan.h
act_api.h
addrconf.h ipv6/addrconf: fix a null-ptr-deref bug for ip6_ptr 2022-08-03 11:59:39 +02:00
af_ieee802154.h
af_rxrpc.h
af_unix.h
af_vsock.h
ah.h
arp.h ipv4: Invalidate neighbour for broadcast address upon address addition 2022-04-15 14:18:33 +02:00
atmclip.h
ax25.h ax25: fix reference count leaks of ax25_dev 2022-04-20 09:19:39 +02:00
ax88796.h
bond_3ad.h bonding: fix data-races around agg_select_timer 2022-02-23 11:59:58 +01:00
bond_alb.h bonding: make tx_rebalance_counter an atomic 2021-12-14 14:49:00 +01:00
bond_options.h
bonding.h bonding: Rename slave_arr to usable_slaves 2023-01-18 11:41:05 +01:00
bpf_sk_storage.h
busy_poll.h net: Fix a data-race around sysctl_net_busy_poll. 2022-09-05 10:27:42 +02:00
calipso.h
cfg80211-wext.h
cfg80211.h
cfg802154.h
checksum.h net: Force inlining of checksum functions in net/checksum.h 2022-03-02 11:41:08 +01:00
cipso_ipv4.h
cls_cgroup.h
codel.h
codel_impl.h
codel_qdisc.h
compat.h
datalink.h
dcbevent.h
dcbnl.h
devlink.h
dn.h
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h
drop_monitor.h
dsa.h
dsfield.h
dst.h net: add atomic_long_t to net_device_stats fields 2023-01-18 11:41:37 +01:00
dst_cache.h
dst_metadata.h net: fix a memleak when uncloning an skb dst and its metadata 2022-02-16 12:52:51 +01:00
dst_ops.h
erspan.h
esp.h esp: limit skb_page_frag_refill use to a single page 2022-07-12 16:30:45 +02:00
ethoc.h
failover.h
fib_notifier.h
fib_rules.h ipv6: fix memory leak in fib6_rule_suppress 2021-12-08 09:01:13 +01:00
firewire.h
flow.h
flow_dissector.h net/sched: flower: fix parsing of ethertype following VLAN header 2022-04-20 09:19:34 +02:00
flow_offload.h
fou.h
fq.h
fq_impl.h
garp.h
gen_stats.h
genetlink.h
geneve.h
gre.h
gro_cells.h
gtp.h
gue.h
hwbm.h
icmp.h
ieee80211_radiotap.h
ieee802154_netdev.h net: ieee802154: return -EINVAL for unknown addr type 2022-10-26 13:22:59 +02:00
if_inet6.h ipv6: fix locking issues with loops over idev->addr_list 2022-06-14 18:11:25 +02:00
ife.h
ila.h
inet6_connection_sock.h
inet6_hashtables.h
inet_common.h
inet_connection_sock.h
inet_ecn.h
inet_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 09:19:54 +01:00
inet_hashtables.h secure_seq: use the 64 bits of the siphash for port offset calculation 2022-06-06 08:33:49 +02:00
inet_sock.h tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept. 2022-07-29 17:14:11 +02:00
inet_timewait_sock.h
inetpeer.h
ip.h ip: Fix a data-race around sysctl_fwmark_reflect. 2022-07-29 17:14:11 +02:00
ip6_checksum.h
ip6_fib.h ipv6: annotate accesses to fn->fn_sernum 2022-02-01 17:24:38 +01:00
ip6_route.h
ip6_tunnel.h
ip_fib.h ipv4: convert fib_num_tclassid_users to atomic_t 2021-12-08 09:01:12 +01:00
ip_tunnels.h
ip_vs.h
ipcomp.h
ipconfig.h
ipv6.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 11:24:05 +02:00
ipv6_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 09:19:54 +01:00
ipv6_stubs.h net: ipv6: add fib6_nh_release_dsts stub 2021-12-01 09:23:33 +01:00
ipx.h
iw_handler.h
kcm.h
l3mdev.h
lag.h
lapb.h
lib80211.h
llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-17 09:48:47 +01:00
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
lwtunnel.h
mac80211.h
mac802154.h
mip6.h
mld.h
mpls.h
mpls_iptunnel.h
mrp.h mrp: introduce active flags to prevent UAF when applicant uninit 2023-01-18 11:41:37 +01:00
ncsi.h
ndisc.h
neighbour.h net, neigh: Enable state migration between NUD_PERMANENT and NTF_USE 2021-11-17 09:48:49 +01:00
net_failover.h
net_namespace.h
net_ratelimit.h
netevent.h
netlabel.h
netlink.h
netprio_cgroup.h
netrom.h
nexthop.h
nl802154.h net: ieee802154: handle iftypes as u32 2021-12-01 09:23:32 +01:00
nsh.h
p8022.h
page_pool.h
ping.h
pkt_cls.h
pkt_sched.h net: prevent user from passing illegal stab size 2021-10-17 10:42:34 +02:00
pptp.h
protocol.h tcp/udp: Make early_demux back namespacified. 2022-11-10 17:57:55 +01:00
psample.h
psnap.h
raw.h raw: Fix a data-race around sysctl_raw_l3mdev_accept. 2022-07-21 20:59:22 +02:00
rawv6.h
red.h
regulatory.h
request_sock.h
rose.h
route.h ipv4: remove sparse error in ip_neigh_gw4() 2022-02-01 17:24:39 +01:00
rsi_91x.h
rtnetlink.h
rtnh.h
sch_generic.h net/sched: sch_taprio: fix possible use-after-free 2023-02-06 07:52:37 +01:00
scm.h scm: fix MSG_CTRUNC setting condition for SO_PASSSEC 2023-05-17 11:35:41 +02:00
secure_seq.h secure_seq: use the 64 bits of the siphash for port offset calculation 2022-06-06 08:33:49 +02:00
seg6.h
seg6_hmac.h
seg6_local.h
slhc_vj.h
smc.h
snmp.h
sock.h net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs(). 2023-05-30 12:44:01 +01:00
sock_reuseport.h
Space.h
stp.h
strparser.h bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-17 09:48:48 +01:00
switchdev.h
tcp.h tcp/udp: Make early_demux back namespacified. 2022-11-10 17:57:55 +01:00
tcp_states.h
timewait_sock.h
tipc.h
tls.h net/tls: Fix flipped sign in tls_err_abort() calls 2021-11-02 19:46:12 +01:00
transp_v6.h
tso.h
tun_proto.h
udp.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 11:24:05 +02:00
udp_tunnel.h udp: call udp_encap_enable for v6 sockets when enabling encap 2022-04-15 14:18:01 +02:00
udplite.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 11:24:05 +02:00
vsock_addr.h
vxlan.h
wext.h
wimax.h
x25.h
x25device.h
xdp.h
xdp_priv.h
xdp_sock.h
xfrm.h xfrm: Check if_id in xfrm_migrate 2022-03-19 13:40:16 +01:00