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Anant Thazhemadam 7ca1db21ef net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid 
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>
2020-10-12 10:05:47 +02:00
..
6lowpan
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
9p
net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid
2020-10-12 10:05:47 +02:00
802
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8021q
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
appletalk
appletalk: Fix atalk_proc_init() return path
2020-08-03 15:48:32 -07:00
atm
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
ax25
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-07-25 17:49:04 -07:00
batman-adv
batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh
2020-09-15 10:05:24 +02:00
bluetooth
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
bpf
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
bpfilter
Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-08-04 14:27:25 -07:00
bridge
net: bridge: br_vlan_get_pvid_rcu() should dereference the VLAN group under RCU
2020-09-21 17:37:44 -07:00
caif
net: caif: fix error code handling
2020-08-25 07:50:25 -07:00
can
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
ceph
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
core
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2020-09-15 19:26:21 -07:00
dcb
net: DCB: Validate DCB_ATTR_DCB_BUFFER argument
2020-09-10 15:09:08 -07:00
dccp
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
decnet
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
dns_resolver
docs: networking: convert dns_resolver.txt to ReST
2020-04-28 14:39:46 -07:00
dsa
net: mscc: ocelot: add locking for the port TX timestamp ID
2020-09-18 13:52:33 -07:00
ethernet
net: move devres helpers into a separate source file
2020-05-23 16:56:17 -07:00
ethtool
ethtool: add and use message type for tunnel info reply
2020-09-17 16:43:20 -07:00
hsr
hsr: avoid newline at end of message in NL_SET_ERR_MSG_MOD
2020-09-09 11:15:26 -07:00
ieee802154
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
ife
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ipv4
inet_diag: validate INET_DIAG_REQ_PROTOCOL attribute
2020-09-21 17:38:51 -07:00
ipv6
ipv6: route: convert comma to semicolon
2020-09-21 14:52:18 -07:00
iucv
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
kcm
net: pass a sockptr_t into ->setsockopt
2020-07-24 15:41:54 -07:00
key
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-08-02 01:02:12 -07:00
l2tp
l2tp: improve API documentation in l2tp_core.h
2020-07-30 16:45:31 -07:00
l3mdev
net: Fix some comments
2020-08-27 07:55:59 -07:00
lapb
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
llc
net: pass a sockptr_t into ->setsockopt
2020-07-24 15:41:54 -07:00
mac80211
mac80211: fix 80 MHz association to 160/80+80 AP on 6 GHz
2020-09-18 14:01:24 +02:00
mac802154
Merge tag 'ieee802154-for-davem-2020-09-08' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan
2020-09-08 20:12:58 -07:00
mpls
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
mptcp
mptcp: fix kmalloc flag in mptcp_pm_nl_get_local_id
2020-09-10 12:30:03 -07:00
ncsi
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
netfilter
netfilter: nft_meta: use socket user_ns to retrieve skuid and skgid
2020-09-08 13:04:56 +02:00
netlabel
netlabel: fix problems with mapping removal
2020-08-24 16:08:00 -07:00
netlink
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-09-03 18:50:48 -07:00
netrom
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
nfc
net/nfc/rawsock.c: add CAP_NET_RAW check.
2020-08-11 10:34:30 -07:00
nsh
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
openvswitch
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
packet
net/packet: fix overflow in tpacket_rcv
2020-09-04 11:56:02 -07:00
phonet
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
psample
net: psample: fix build error when CONFIG_INET is not enabled
2020-05-23 16:36:05 -07:00
qrtr
net: qrtr: check skb_put_padto() return value
2020-09-09 11:04:39 -07:00
rds
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
rfkill
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rose
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
rxrpc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-09-03 18:50:48 -07:00
sched
net: sched: initialize with 0 before setting erspan md->u
2020-09-14 16:53:38 -07:00
sctp
net: sctp: Fix IPv6 ancestor_size calc in sctp_copy_descendant
2020-09-20 14:15:12 -07:00
smc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-09-03 18:50:48 -07:00
strparser
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sunrpc
SUNRPC: Fix svc_flush_dcache()
2020-09-21 10:13:25 -04:00
switchdev
net: switchdev: kerneldoc fixes
2020-07-13 17:20:40 -07:00
tipc
net: tipc: kerneldoc fixes
2020-09-15 13:33:04 -07:00
tls
net/tls: Fix kmap usage
2020-08-11 10:20:34 -07:00
unix
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
vmw_vsock
vsock: fix potential null pointer dereference in vsock_poll()
2020-08-12 12:56:06 -07:00
wimax
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wireless
cfg80211: fix 6 GHz channel conversion
2020-09-18 11:43:46 +02:00
x25
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
xdp
xsk: Fix number of pinned pages/umem size discrepancy
2020-09-14 18:35:09 -07:00
xfrm
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
compat.c
net/scm: Fix typo in SCM_RIGHTS compat refactoring
2020-08-07 12:43:25 -07:00
devres.c
net: devres: rename the release callback of devm_register_netdev()
2020-06-30 15:57:34 -07:00
Kconfig
net: ethtool: Remove PHYLIB direct dependency
2020-07-07 15:41:05 -07:00
Makefile
net: move devres helpers into a separate source file
2020-05-23 16:56:17 -07:00
socket.c
net: Fix some comments
2020-08-27 07:55:59 -07:00
sysctl_net.c
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