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Anant Thazhemadam 229bdf0b13 net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid
[ Upstream commit 7ca1db21ef ]

In p9_fd_create_unix, checking is performed to see if the addr (passed
as an argument) is NULL or not.
However, no check is performed to see if addr is a valid address, i.e.,
it doesn't entirely consist of only 0's.
The initialization of sun_server.sun_path to be equal to this faulty
addr value leads to an uninitialized variable, as detected by KMSAN.
Checking for this (faulty addr) and returning a negative error number
appropriately, resolves this issue.

Link: http://lkml.kernel.org/r/20201012042404.2508-1-anant.thazhemadam@gmail.com
Reported-by: syzbot+75d51fe5bf4ebe988518@syzkaller.appspotmail.com
Tested-by: syzbot+75d51fe5bf4ebe988518@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-05 11:43:20 +01:00
..
6lowpan 6lowpan: no need to check return value of debugfs_create functions 2019-07-06 12:50:01 +02:00
9p net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid 2020-11-05 11:43:20 +01:00
802 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
8021q vlan: vlan_changelink() should propagate errors 2020-01-12 12:21:50 +01:00
appletalk appletalk: Fix atalk_proc_init() return path 2020-08-11 15:33:40 +02:00
atm atm: fix a memory leak of vcc->user_back 2020-10-01 13:17:58 +02:00
ax25 AX.25: Prevent integer overflows in connect and sendmsg 2020-07-31 18:39:31 +02:00
batman-adv batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh 2020-10-01 13:18:19 +02:00
bluetooth Bluetooth: Only mark socket zapped after unlocking 2020-10-29 09:58:06 +01:00
bpf bpf/flow_dissector: support flags in BPF_PROG_TEST_RUN 2019-07-25 18:00:41 -07:00
bpfilter net/bpfilter: remove superfluous testing message 2020-04-21 09:04:53 +02:00
bridge netfilter: ebtables: Fixes dropping of small packets in bridge nat 2020-10-29 09:57:57 +01:00
caif net: use skb_queue_empty_lockless() in poll() handlers 2019-10-28 13:33:41 -07:00
can net: j1939: j1939_session_fresh_new(): fix missing initialization of skbcnt 2020-10-29 09:57:24 +01:00
ceph libceph: don't omit recovery_deletes in target_copy() 2020-07-22 09:33:17 +02:00
core socket: don't clear SOCK_TSTAMP_NEW when SO_TIMESTAMPNS is disabled 2020-11-01 12:01:01 +01:00
dcb net: DCB: Validate DCB_ATTR_DCB_BUFFER argument 2020-09-26 18:03:12 +02:00
dccp dccp: Fix possible memleak in dccp_init and dccp_fini 2020-06-17 16:40:32 +02:00
decnet net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2020-01-04 19:18:58 +01:00
dns_resolver KEYS: Don't write out to userspace while holding key semaphore 2020-04-23 10:36:45 +02:00
dsa dsa: Allow forwarding of redirected IGMP traffic 2020-09-23 12:40:33 +02:00
ethernet net: add annotations on hh->hh_len lockless accesses 2020-01-09 10:20:06 +01:00
hsr hsr: check protocol version in hsr_newlink() 2020-04-21 09:04:44 +02:00
ieee802154 nl802154: add missing attribute validation for dev_type 2020-03-18 07:17:44 +01:00
ife net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
ipv4 tcp: Prevent low rmem stalls with SO_RCVLOWAT. 2020-11-01 12:01:04 +01:00
ipv6 netfilter: nf_log: missing vlan offload tag and proto 2020-10-29 09:57:45 +01:00
iucv net/af_iucv: mark expected switch fall-throughs 2019-07-29 10:26:14 -07:00
kcm kcm: disable preemption in kcm_parse_func_strparser() 2019-09-27 10:27:14 +02:00
key af_key: pfkey_dump needs parameter validation 2020-09-26 18:03:10 +02:00
l2tp l2tp: remove skb_dst_set() from l2tp_xmit_skb() 2020-07-22 09:32:47 +02:00
l3mdev ipv6: convert major tx path to use RT6_LOOKUP_F_DST_NOREF 2019-06-23 13:24:17 -07:00
lapb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-17 20:20:36 -07:00
llc net: silence data-races on sk_backlog.tail 2020-10-01 13:17:15 +02:00
mac80211 mac80211: handle lack of sband->bitrates in rates 2020-10-29 09:58:04 +01:00
mac802154 mac802154: tx: fix use-after-free 2020-10-01 13:18:17 +02:00
mpls net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-18 16:08:42 +01:00
ncsi net/ncsi: Disable global multicast filter 2019-09-19 18:04:40 -07:00
netfilter netfilter: nftables_offload: KASAN slab-out-of-bounds Read in nft_flow_rule_create 2020-11-01 12:01:01 +01:00
netlabel netlabel: fix problems with mapping removal 2020-09-12 14:18:55 +02:00
netlink genetlink: remove genl_bind 2020-07-22 09:32:46 +02:00
netrom net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node 2020-04-29 16:33:08 +02:00
nfc nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download() 2020-10-29 09:57:26 +01:00
nsh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
openvswitch openvswitch: handle DNAT tuple collision 2020-10-14 10:33:02 +02:00
packet net/packet: fix overflow in tpacket_rcv 2020-09-09 19:12:29 +02:00
phonet net: use skb_queue_empty_lockless() in poll() handlers 2019-10-28 13:33:41 -07:00
psample net: psample: fix skb_over_panic 2019-12-04 22:30:54 +01:00
qrtr net: qrtr: check skb_put_padto() return value 2020-09-26 18:03:15 +02:00
rds rds: Prevent kernel-infoleak in rds_notify_queue_get() 2020-08-05 09:59:44 +02:00
rfkill rfkill: Fix incorrect check to avoid NULL pointer dereference 2020-01-12 12:21:33 +01:00
rose net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
rxrpc rxrpc: Fix server keyring leak 2020-10-14 10:33:05 +02:00
sched net/sched: act_mpls: Add softdep on mpls_gso.ko 2020-11-01 12:01:03 +01:00
sctp sctp: fix sctp_auth_init_hmacs() error path 2020-10-14 10:33:01 +02:00
smc net/smc: fix valid DMBE buffer sizes 2020-10-29 09:57:23 +01:00
strparser Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-22 08:59:24 -04:00
sunrpc SUNRPC: Mitigate cond_resched() in xprt_transmit() 2020-11-05 11:43:18 +01:00
switchdev treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tipc tipc: fix memory leak caused by tipc_buf_append() 2020-11-01 12:01:04 +01:00
tls net/tls: sendfile fails with ktls offload 2020-10-29 09:57:23 +01:00
unix skbuff: fix a data race in skb_queue_len() 2020-10-01 13:17:31 +02:00
vmw_vsock net: virtio_vsock: Enhance connection semantics 2020-10-07 08:01:24 +02:00
wimax wimax: no need to check return value of debugfs_create functions 2019-08-10 15:25:47 -07:00
wireless nl80211: fix non-split wiphy information 2020-10-29 09:57:44 +01:00
x25 net/x25: Fix null-ptr-deref in x25_disconnect 2020-08-05 09:59:44 +02:00
xdp xdp: Fix xsk_generic_xmit errno 2020-06-24 17:50:44 +02:00
xfrm xfrm: Use correct address family in xfrm_state_find 2020-10-14 10:33:03 +02:00
Kconfig net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build 2020-04-01 11:02:18 +02:00
Makefile
compat.c net/compat: Add missing sock updates for SCM_RIGHTS 2020-08-21 13:05:25 +02:00
socket.c net: Set fput_needed iff FDPUT_FPUT is set 2020-08-19 08:16:22 +02:00
sysctl_net.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00