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Tadeusz Struk 6644989642 nfc: fix segfault in nfc_genl_dump_devices_done 
commit fd79a0cbf0b2e34bcc45b13acf962e2032a82203 upstream.

When kmalloc in nfc_genl_dump_devices() fails then
nfc_genl_dump_devices_done() segfaults as below

KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014
Workqueue: events netlink_sock_destruct_work
RIP: 0010:klist_iter_exit+0x26/0x80
Call Trace:
<TASK>
class_dev_iter_exit+0x15/0x20
nfc_genl_dump_devices_done+0x3b/0x50
genl_lock_done+0x84/0xd0
netlink_sock_destruct+0x8f/0x270
__sk_destruct+0x64/0x3b0
sk_destruct+0xa8/0xd0
__sk_free+0x2e8/0x3d0
sk_free+0x51/0x90
netlink_sock_destruct_work+0x1c/0x20
process_one_work+0x411/0x710
worker_thread+0x6fd/0xa80

Link: https://syzkaller.appspot.com/bug?id=fc0fa5a53db9edd261d56e74325419faf18bd0df
Reported-by: syzbot+f9f76f4a0766420b4a02@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211208182742.340542-1-tadeusz.struk@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-22 09:17:58 +01:00
..
6lowpan
6lowpan: Off by one handling ->nexthdr
2020-01-27 14:46:30 +01:00
9p
9p/trans_virtio: Remove sysfs file on probe failure
2021-09-26 13:37:28 +02:00
802
net/802/garp: fix memleak in garp_request_join()
2021-08-04 12:22:14 +02:00
8021q
net: vlan: avoid leaks on register_vlan_dev() failures
2021-01-17 13:58:58 +01:00
appletalk
appletalk: Fix skb allocation size in loopback case
2021-04-07 12:47:02 +02:00
atm
atm: fix a memory leak of vcc->user_back
2020-10-01 13:12:42 +02:00
ax25
AX.25: Prevent integer overflows in connect and sendmsg
2020-07-31 16:44:44 +02:00
batman-adv
batman-adv: Don't always reallocate the fragmentation skb head
2021-11-26 11:40:41 +01:00
bluetooth
Bluetooth: fix use-after-free error in lock_sock_nested()
2021-11-26 11:40:26 +01:00
bpf
…
bridge
net: bridge: use nla_total_size_64bit() in br_get_linkxstats_size()
2021-10-17 10:08:33 +02:00
caif
net-caif: avoid user-triggerable WARN_ON(1)
2021-09-22 11:45:33 +02:00
can
can: raw: raw_setsockopt(): fix raw_rcv panic for sock UAF
2021-08-04 12:22:15 +02:00
ceph
libceph: clear con->out_msg on Policy::stateful_server faults
2020-11-05 11:07:03 +01:00
core
net, neigh: clear whole pneigh_entry at alloc time
2021-12-14 10:16:55 +01:00
dcb
net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands
2021-01-23 15:48:46 +01:00
dccp
dccp: don't duplicate ccid when cloning dccp sock
2021-09-22 11:45:33 +02:00
decnet
net: decnet: Fix sleeping inside in af_decnet
2021-07-28 11:12:18 +02:00
dns_resolver
KEYS: Don't write out to userspace while holding key semaphore
2020-04-24 08:01:25 +02:00
dsa
net: dsa: Fix duplicate frames flooded by learning
2020-04-02 16:34:24 +02:00
ethernet
net: add annotations on hh->hh_len lockless accesses
2020-01-09 10:17:59 +01:00
hsr
hsr: use netdev_err() instead of WARN_ONCE()
2021-05-22 10:57:24 +02:00
ieee802154
net: Fix memory leak in ieee802154_raw_deliver
2021-08-26 08:37:02 -04:00
ife
…
ipv4
net: return correct error code
2021-12-08 08:46:53 +01:00
ipv6
seg6: fix the iif in the IPv6 socket control block
2021-12-14 10:16:54 +01:00
ipx
…
iucv
net/af_iucv: set correct sk_protocol for child sockets
2020-12-08 10:17:32 +01:00
kcm
kcm: switch order of device registration to fix a crash
2019-04-17 08:37:45 +02:00
key
af_key: relax availability checks for skb size calculation
2021-02-23 14:00:29 +01:00
l2tp
net/l2tp: Fix reference count leak in l2tp_udp_recv_core
2021-09-22 11:45:33 +02:00
l3mdev
…
lapb
net: lapb: Copy the skb before sending a packet
2021-02-10 09:12:08 +01:00
llc
net: llc: fix skb_over_panic
2021-08-04 12:22:17 +02:00
mac80211
mac80211: Drop frames from invalid MAC address in ad-hoc mode
2021-10-17 10:08:34 +02:00
mac802154
net: mac802154: Fix general protection fault
2021-04-16 11:57:52 +02:00
mpls
net: mpls: Fix notifications when deleting a device
2021-12-08 08:46:55 +01:00
ncsi
net/ncsi: Avoid GFP_KERNEL in response handler
2021-04-16 11:57:51 +02:00
netfilter
netfilter: ipvs: Fix reuse connection if RS weight is 0
2021-12-08 08:46:48 +01:00
netlabel
net: fix NULL pointer reference in cipso_v4_doi_free
2021-09-22 11:45:32 +02:00
netlink
netlink: annotate data races around nlk->bound
2021-10-17 10:08:33 +02:00
netrom
netrom: Decrease sock refcount when sock timers expire
2021-07-28 11:12:18 +02:00
nfc
nfc: fix segfault in nfc_genl_dump_devices_done
2021-12-22 09:17:58 +01:00
nsh
…
openvswitch
openvswitch: fix stack OOB read while fragmenting IPv4 packets
2021-05-22 10:57:21 +02:00
packet
net/packet: annotate accesses to po->ifindex
2021-06-30 08:48:58 -04:00
phonet
net: use skb_queue_empty_lockless() in poll() handlers
2019-11-10 11:25:34 +01:00
psample
net: psample: fix skb_over_panic
2019-12-05 15:38:15 +01:00
qrtr
net: qrtr: fix a kernel-infoleak in qrtr_recvmsg()
2021-03-30 14:40:12 +02:00
rds
net/rds: correct socket tunable error in rds_tcp_tune()
2021-12-08 08:46:55 +01:00
rfkill
rfkill: Fix incorrect check to avoid NULL pointer dereference
2020-01-12 12:11:57 +01:00
rose
rose: Fix Null pointer dereference in rose_send_frame()
2020-12-08 10:17:32 +01:00
rxrpc
rxrpc: Fix handling of an unsupported token type in rxrpc_read()
2021-01-23 15:48:47 +01:00
sched
net_sched: fix NULL deref in fifo_set_limit()
2021-10-17 10:08:33 +02:00
sctp
sctp: add vtag check in sctp_sf_ootb
2021-11-02 18:25:13 +01:00
smc
net/smc: Keep smc_close_final rc during active close
2021-12-08 08:46:55 +01:00
strparser
…
sunrpc
rpc: fix gss_svc_init cleanup on failure
2021-09-22 11:45:30 +02:00
switchdev
…
tipc
tipc: increase timeout in tipc_sk_enqueue()
2021-09-22 11:45:33 +02:00
tls
…
unix
af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
2021-10-06 15:05:09 +02:00
vmw_vsock
vsock: prevent unnecessary refcnt inc for nonblocking connect
2021-11-26 11:40:36 +01:00
wimax
…
wireless
cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
2021-11-26 11:40:41 +01:00
x25
net/x25: Return the correct errno code
2021-06-30 08:48:47 -04:00
xfrm
xfrm: Fix error reporting in xfrm_state_construct.
2021-07-20 16:17:44 +02:00
compat.c
net: Return the correct errno code
2021-06-30 08:48:47 -04:00
Kconfig
…
Makefile
net: split out functions related to registering inflight socket files
2021-08-04 12:22:14 +02:00
socket.c
net: Set fput_needed iff FDPUT_FPUT is set
2020-08-21 09:48:14 +02:00
sysctl_net.c
…