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Fedor Pchelkin f940ca20f1 mac802154: fix llsec key resources release in mac802154_llsec_key_del 
[ Upstream commit e8a1e58345cf40b7b272e08ac7b32328b2543e40 ]

mac802154_llsec_key_del() can free resources of a key directly without
following the RCU rules for waiting before the end of a grace period. This
may lead to use-after-free in case llsec_lookup_key() is traversing the
list of keys in parallel with a key deletion:

refcount_t: addition on 0; use-after-free.
WARNING: CPU: 4 PID: 16000 at lib/refcount.c:25 refcount_warn_saturate+0x162/0x2a0
Modules linked in:
CPU: 4 PID: 16000 Comm: wpan-ping Not tainted 6.7.0 #19
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:refcount_warn_saturate+0x162/0x2a0
Call Trace:
 <TASK>
 llsec_lookup_key.isra.0+0x890/0x9e0
 mac802154_llsec_encrypt+0x30c/0x9c0
 ieee802154_subif_start_xmit+0x24/0x1e0
 dev_hard_start_xmit+0x13e/0x690
 sch_direct_xmit+0x2ae/0xbc0
 __dev_queue_xmit+0x11dd/0x3c20
 dgram_sendmsg+0x90b/0xd60
 __sys_sendto+0x466/0x4c0
 __x64_sys_sendto+0xe0/0x1c0
 do_syscall_64+0x45/0xf0
 entry_SYSCALL_64_after_hwframe+0x6e/0x76

Also, ieee802154_llsec_key_entry structures are not freed by
mac802154_llsec_key_del():

unreferenced object 0xffff8880613b6980 (size 64):
  comm "iwpan", pid 2176, jiffies 4294761134 (age 60.475s)
  hex dump (first 32 bytes):
    78 0d 8f 18 80 88 ff ff 22 01 00 00 00 00 ad de  x.......".......
    00 00 00 00 00 00 00 00 03 00 cd ab 00 00 00 00  ................
  backtrace:
    [<ffffffff81dcfa62>] __kmem_cache_alloc_node+0x1e2/0x2d0
    [<ffffffff81c43865>] kmalloc_trace+0x25/0xc0
    [<ffffffff88968b09>] mac802154_llsec_key_add+0xac9/0xcf0
    [<ffffffff8896e41a>] ieee802154_add_llsec_key+0x5a/0x80
    [<ffffffff8892adc6>] nl802154_add_llsec_key+0x426/0x5b0
    [<ffffffff86ff293e>] genl_family_rcv_msg_doit+0x1fe/0x2f0
    [<ffffffff86ff46d1>] genl_rcv_msg+0x531/0x7d0
    [<ffffffff86fee7a9>] netlink_rcv_skb+0x169/0x440
    [<ffffffff86ff1d88>] genl_rcv+0x28/0x40
    [<ffffffff86fec15c>] netlink_unicast+0x53c/0x820
    [<ffffffff86fecd8b>] netlink_sendmsg+0x93b/0xe60
    [<ffffffff86b91b35>] ____sys_sendmsg+0xac5/0xca0
    [<ffffffff86b9c3dd>] ___sys_sendmsg+0x11d/0x1c0
    [<ffffffff86b9c65a>] __sys_sendmsg+0xfa/0x1d0
    [<ffffffff88eadbf5>] do_syscall_64+0x45/0xf0
    [<ffffffff890000ea>] entry_SYSCALL_64_after_hwframe+0x6e/0x76

Handle the proper resource release in the RCU callback function
mac802154_llsec_key_del_rcu().

Note that if llsec_lookup_key() finds a key, it gets a refcount via
llsec_key_get() and locally copies key id from key_entry (which is a
list element). So it's safe to call llsec_key_put() and free the list
entry after the RCU grace period elapses.

Found by Linux Verification Center (linuxtesting.org).

Fixes: 5d637d5aabd8 ("mac802154: add llsec structures and mutators")
Cc: stable@vger.kernel.org
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Acked-by: Alexander Aring <aahringo@redhat.com>
Message-ID: <20240228163840.6667-1-pchelkin@ispras.ru>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 09:22:33 +01:00
..
9p Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bluetooth Bluetooth: Fix bogus check for re-auth no supported with non-ssp 2024-11-18 12:12:38 +01:00
caif Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
iucv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netfilter netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() 2024-11-18 12:13:40 +01:00
netns Revert "xfrm: fix a data-race in xfrm_gen_index()" 2024-11-17 19:38:56 +01:00
nfc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
phonet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sctp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tc_act Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
6lowpan.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
act_api.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
addrconf.h net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX 2024-11-18 12:11:48 +01:00
af_ieee802154.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
af_rxrpc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
af_unix.h af_unix: fix lockdep positive in sk_diag_dump_icons() 2024-11-18 12:13:23 +01:00
af_vsock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ah.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
arp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
atmclip.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ax25.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ax88796.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bareudp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bond_3ad.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bond_alb.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bond_options.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bonding.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bpf_sk_storage.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
busy_poll.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
calipso.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cfg80211-wext.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cfg80211.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-11-19 09:22:33 +01:00
checksum.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cipso_ipv4.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cls_cgroup.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss2.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss_nl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss_prealloc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss_utils.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
codel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
codel_impl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
codel_qdisc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
compat.h net/ipv4/ipv6: Replace one-element arraya with flexible-array members 2024-11-19 08:44:49 +01:00
datalink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dcbevent.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dcbnl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
devlink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dropdump.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dsa.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dsfield.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst_cache.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst_metadata.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst_ops.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
erspan.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
esp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
espintcp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ethoc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
failover.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_notifier.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_rules.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
firewire.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
flow.h inet: shrink struct flowi_common 2024-11-18 11:43:07 +01:00
flow_dissector.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
flow_offload.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fou.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fq.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fq_impl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
garp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gen_stats.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
genetlink.h drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2024-11-18 12:11:46 +01:00
geneve.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gre.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gro_cells.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gtp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gue.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hwbm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
icmp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ieee80211_radiotap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ieee802154_netdev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
if_inet6.h net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX 2024-11-18 12:11:48 +01:00
ife.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ila.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet6_connection_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet6_hashtables.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_common.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_connection_sock.h tcp: make sure init the accept_queue's spinlocks once 2024-11-18 12:12:59 +01:00
inet_ecn.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_frag.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_hashtables.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_timewait_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inetpeer.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_checksum.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_fib.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_route.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_tunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip_fib.h ipv4/fib: send notify when delete source address routes 2024-11-08 11:26:17 +01:00
ip_tunnels.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip_vs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipcomp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipconfig.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv6_frag.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv6_stubs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipx.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
iw_handler.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kcm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
l3mdev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lag.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lapb.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lib80211.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_c_ac.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_c_ev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_c_st.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_conn.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_if.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_pdu.h llc: Drop support for ETH_P_TR_802_2. 2024-11-18 12:13:00 +01:00
llc_s_ac.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_s_ev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_s_st.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_sap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lwtunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mac80211.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
mac802154.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
macsec.h net: macsec: indicate next pn update when offloading 2024-11-08 11:25:46 +01:00
mip6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mld.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mpls.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mpls_iptunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mptcp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mrp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncsi.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ndisc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
neighbour.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_failover.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_namespace.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_ratelimit.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netevent.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netlabel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netlink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netprio_cgroup.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netrom.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nexthop.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nl802154.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nsh.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
p8022.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_pool.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pie.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ping.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pkt_cls.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pkt_sched.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pptp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
protocol.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
psample.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
psnap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raw.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rawv6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
red.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
regulatory.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
request_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rose.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
route.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rpl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rsi_91x.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rtnetlink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rtnh.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sch_generic.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
scm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
secure_seq.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
seg6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
seg6_hmac.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
seg6_local.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
skb_tracer.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slhc_vj.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
smc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
snmp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sock.h net: annotate data-races around sk->sk_dst_pending_confirm 2024-11-18 11:43:12 +01:00
sock_reuseport.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Space.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
strparser.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
switchdev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp.h mptcp: fix lockless access in subflow ULP diag 2024-11-18 22:25:39 +01:00
tcp_states.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
TEST_MAPPING Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
timewait_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tipc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tls.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tls_toe.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
transp_v6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tso.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tun_proto.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_tunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udplite.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
virt_wifi.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vsock_addr.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vxlan.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wext.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wimax.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
x25.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
x25device.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp_priv.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp_sock_drv.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xsk_buff_pool.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00