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Wang Yufen b4be80aa4b netlabel: fix out-of-bounds memory accesses 
[ Upstream commit f22881de730ebd472e15bcc2c0d1d46e36a87b9c ]

In calipso_map_cat_ntoh(), in the for loop, if the return value of
netlbl_bitmap_walk() is equal to (net_clen_bits - 1), when
netlbl_bitmap_walk() is called next time, out-of-bounds memory accesses
of bitmap[byte_offset] occurs.

The bug was found during fuzzing. The following is the fuzzing report
 BUG: KASAN: slab-out-of-bounds in netlbl_bitmap_walk+0x3c/0xd0
 Read of size 1 at addr ffffff8107bf6f70 by task err_OH/252

 CPU: 7 PID: 252 Comm: err_OH Not tainted 5.17.0-rc7+ #17
 Hardware name: linux,dummy-virt (DT)
 Call trace:
  dump_backtrace+0x21c/0x230
  show_stack+0x1c/0x60
  dump_stack_lvl+0x64/0x7c
  print_address_description.constprop.0+0x70/0x2d0
  __kasan_report+0x158/0x16c
  kasan_report+0x74/0x120
  __asan_load1+0x80/0xa0
  netlbl_bitmap_walk+0x3c/0xd0
  calipso_opt_getattr+0x1a8/0x230
  calipso_sock_getattr+0x218/0x340
  calipso_sock_getattr+0x44/0x60
  netlbl_sock_getattr+0x44/0x80
  selinux_netlbl_socket_setsockopt+0x138/0x170
  selinux_socket_setsockopt+0x4c/0x60
  security_socket_setsockopt+0x4c/0x90
  __sys_setsockopt+0xbc/0x2b0
  __arm64_sys_setsockopt+0x6c/0x84
  invoke_syscall+0x64/0x190
  el0_svc_common.constprop.0+0x88/0x200
  do_el0_svc+0x88/0xa0
  el0_svc+0x128/0x1b0
  el0t_64_sync_handler+0x9c/0x120
  el0t_64_sync+0x16c/0x170

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2022-04-15 14:18:35 +02:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-09-15 09:47:31 +02:00
9p xen/9p: use alloc/free_pages_exact() 2022-03-11 11:22:39 +01:00
802 net/802/garp: fix memleak in garp_request_join() 2021-07-31 08:19:38 +02:00
8021q net: vlan: fix underflow for the real_dev refcnt 2021-12-01 09:23:34 +01:00
appletalk appletalk: Fix skb allocation size in loopback case 2021-04-07 14:47:41 +02:00
atm atm: fix a memory leak of vcc->user_back 2020-10-01 13:17:58 +02:00
ax25 ax25: Fix NULL pointer dereference in ax25_kill_by_device 2022-03-16 13:21:45 +01:00
batman-adv ipv6: make mc_forwarding atomic 2022-04-15 14:18:32 +02:00
bluetooth Bluetooth: Fix use after free in hci_send_acl 2022-04-15 14:18:34 +02:00
bpf bpf/flow_dissector: support flags in BPF_PROG_TEST_RUN 2019-07-25 18:00:41 -07:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-07-14 16:53:33 +02:00
bridge net: bridge: fix stale eth hdr pointer in br_dev_xmit 2022-02-16 12:52:50 +01:00
caif net-caif: avoid user-triggerable WARN_ON(1) 2021-09-22 12:26:40 +02:00
can can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM 2021-12-08 09:01:08 +01:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-11-05 11:43:34 +01:00
core bpf: Make dst_port field in struct bpf_sock 16-bit wide 2022-04-15 14:18:32 +02:00
dcb net: dcb: disable softirqs in dcbnl_flush_dev() 2022-03-08 19:07:51 +01:00
dccp dccp: don't duplicate ccid when cloning dccp sock 2021-09-22 12:26:40 +02:00
decnet net: decnet: Fix sleeping inside in af_decnet 2021-07-28 13:30:56 +02:00
dns_resolver KEYS: Don't write out to userspace while holding key semaphore 2020-04-23 10:36:45 +02:00
dsa net: dsa: Add missing of_node_put() in dsa_port_parse_of 2022-03-23 09:12:07 +01:00
ethernet net: add annotations on hh->hh_len lockless accesses 2020-01-09 10:20:06 +01:00
hsr hsr: use netdev_err() instead of WARN_ONCE() 2021-05-14 09:44:10 +02:00
ieee802154 net: ieee802154: Return meaningful error codes from the netlink helpers 2022-02-08 18:24:31 +01:00
ife net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
ipv4 ipv4: Invalidate neighbour for broadcast address upon address addition 2022-04-15 14:18:33 +02:00
ipv6 ipv6: make mc_forwarding atomic 2022-04-15 14:18:32 +02:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:20:42 +01:00
kcm kcm: disable preemption in kcm_parse_func_strparser() 2019-09-27 10:27:14 +02:00
key af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register 2022-04-15 14:17:56 +02:00
l2tp net/l2tp: Fix reference count leak in l2tp_udp_recv_core 2021-09-22 12:26:41 +02:00
l3mdev ipv6: convert major tx path to use RT6_LOOKUP_F_DST_NOREF 2019-06-23 13:24:17 -07:00
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:25:28 +01:00
llc llc: only change llc->dev when bind() succeeds 2022-03-28 08:46:48 +02:00
mac80211 mac80211: fix potential double free on mesh join 2022-03-28 08:46:48 +02:00
mac802154 net: mac802154: Fix general protection fault 2021-04-14 08:24:18 +02:00
mpls net: mpls: Fix notifications when deleting a device 2021-12-08 09:01:12 +01:00
ncsi net/ncsi: check for error return from call to nla_put_u32 2022-01-05 12:37:45 +01:00
netfilter netfilter: nf_conntrack_tcp: preserve liberal flag in tcp options 2022-04-15 14:18:20 +02:00
netlabel netlabel: fix out-of-bounds memory accesses 2022-04-15 14:18:35 +02:00
netlink af_netlink: Fix shift out of bounds in group mask calculation 2022-04-15 14:18:16 +02:00
netrom netrom: Decrease sock refcount when sock timers expire 2021-07-28 13:30:56 +02:00
nfc nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind() 2022-01-27 09:19:26 +01:00
nsh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
openvswitch openvswitch: Fixed nd target mask field in the flow dump. 2022-04-15 14:18:31 +02:00
packet net/packet: fix slab-out-of-bounds access in packet_recvmsg() 2022-03-23 09:12:06 +01:00
phonet phonet: refcount leak in pep_sock_accep 2022-01-11 15:23:33 +01:00
psample net: psample: fix skb_over_panic 2019-12-04 22:30:54 +01:00
qrtr net: qrtr: fix another OOB Read in qrtr_endpoint_post 2021-09-03 10:08:12 +02:00
rds rds: memory leak in __rds_conn_create() 2021-12-22 09:29:37 +01:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2020-11-24 13:29:05 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-12-08 10:40:23 +01:00
rxrpc rxrpc: Adjust retransmission backoff 2022-02-01 17:24:38 +01:00
sched net: sched: limit TC_ACT_REPEAT loops 2022-02-23 11:59:59 +01:00
sctp sctp: fix the processing for INIT chunk 2022-03-19 13:40:13 +01:00
smc net/smc: correct settings of RMB window update limit 2022-04-15 14:18:34 +02:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-17 09:48:48 +01:00
sunrpc SUNRPC: avoid race between mod_timer() and del_timer_sync() 2022-04-15 14:17:58 +02:00
switchdev net: switchdev: do not propagate bridge updates across bridges 2021-10-27 09:54:24 +02:00
tipc tipc: fix the timer expires after interval 100ms 2022-04-15 14:18:17 +02:00
tls net/tls: Fix authentication failure in CCM mode 2021-12-08 09:01:14 +01:00
unix af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress 2022-01-27 09:19:53 +01:00
vmw_vsock vsock: remove vsock from connected table when connect is interrupted by a signal 2022-02-23 11:59:57 +01:00
wimax wimax: no need to check return value of debugfs_create functions 2019-08-10 15:25:47 -07:00
wireless nl80211: Update bss channel on channel switch for P2P_CLIENT 2022-03-19 13:40:17 +01:00
x25 net/x25: Fix null-ptr-deref caused by x25_disconnect 2022-04-15 14:18:21 +02:00
xdp Revert "xsk: Do not sleep in poll() when need_wakeup set" 2021-12-22 09:29:40 +01:00
xfrm xfrm: fix tunnel model fragmentation behavior 2022-04-15 14:17:56 +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: Return the correct errno code 2021-06-18 09:59:00 +02:00
socket.c net: don't unconditionally copy_from_user a struct ifreq for socket ioctls 2021-09-03 10:08:16 +02:00
sysctl_net.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00