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Luiz Augusto von Dentz d1e894f950 Bluetooth: L2CAP: Fix user-after-free 
[ Upstream commit 35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f ]

This uses l2cap_chan_hold_unless_zero() after calling
__l2cap_get_chan_blah() to prevent the following trace:

Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref
*kref)
Bluetooth: chan 0000000023c4974d
Bluetooth: parent 00000000ae861c08
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first
kernel/locking/mutex.c:191 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common
kernel/locking/mutex.c:671 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400
kernel/locking/mutex.c:729
Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389

Link: https://lore.kernel.org/lkml/20220622082716.478486-1-lee.jones@linaro.org
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sungwoo Kim <iam@sung-woo.kim>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 12:35:37 +02:00
..
6lowpan
6lowpan: iphc: Fix an off-by-one check of array index
2021-07-22 16:19:03 +02:00
9p
net/9p: Initialize the iounit field during fid creation
2022-08-17 14:24:23 +02:00
802
net: 802: remove dead leftover after ipx driver removal
2021-08-13 16:30:35 -07:00
8021q
net: use eth_hw_addr_set() instead of ether_addr_copy()
2022-08-31 17:16:37 +02:00
appletalk
net: socket: rework compat_ifreq_ioctl()
2021-07-23 14:20:25 +01:00
atm
atm: Use list_for_each_entry() to simplify code in resources.c
2021-06-10 14:08:09 -07:00
ax25
net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg
2022-06-22 14:22:01 +02:00
batman-adv
batman-adv: Use netif_rx_any_context() any.
2022-07-29 17:25:07 +02:00
bluetooth
Bluetooth: L2CAP: Fix user-after-free
2022-10-26 12:35:37 +02:00
bpf
bpf: Don't redirect packets with invalid pkt_len
2022-09-05 10:30:07 +02:00
bpfilter
bpfilter: Specify the log level for the kmsg message
2021-06-25 13:13:50 +02:00
bridge
netfilter: ebtables: fix memory leak when blob is malformed
2022-09-28 11:11:52 +02:00
caif
net-caif: avoid user-triggerable WARN_ON(1)
2021-09-14 12:51:15 +01:00
can
can: bcm: check the result of can_send() in bcm_can_tx()
2022-10-26 12:35:36 +02:00
ceph
libceph: fix potential use-after-free on linger ping and resends
2022-05-25 09:57:28 +02:00
core
net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory
2022-10-26 12:35:37 +02:00
dcb
net: dcb: disable softirqs in dcbnl_flush_dev()
2022-03-08 19:12:52 +01:00
dccp
dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
2022-08-17 14:23:37 +02:00
decnet
net: Fix data-races around sysctl_[rw]mem(_offset)?.
2022-08-03 12:03:51 +02:00
dns_resolver
…
dsa
net: dsa: hellcreek: Print warning only once
2022-09-20 12:39:45 +02:00
ethernet
move netdev_boot_setup into Space.c
2021-08-03 13:05:26 +01:00
ethtool
ethtool: Fix get module eeprom fallback
2022-06-29 09:03:23 +02:00
hsr
net: use eth_hw_addr_set() instead of ether_addr_copy()
2022-08-31 17:16:37 +02:00
ieee802154
net/ieee802154: reject zero-sized raw_sendmsg()
2022-10-26 12:34:49 +02:00
ife
…
ipv4
tcp: annotate data-race around tcp_md5sig_pool_populated
2022-10-26 12:35:33 +02:00
ipv6
netfilter: nft_fib: Fix for rpath check with VRF devices
2022-10-26 12:34:47 +02:00
iucv
net/iucv: Replace deprecated CPU-hotplug functions.
2021-08-09 10:13:32 +01:00
kcm
kcm: fix strp_init() order and cleanup
2022-09-08 12:28:03 +02:00
key
af_key: Do not call xfrm_probe_algs in parallel
2022-08-31 17:16:36 +02:00
l2tp
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
2022-06-22 14:21:58 +02:00
l3mdev
l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu
2022-04-27 14:38:53 +02:00
lapb
net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c
2021-06-08 16:31:25 -07:00
llc
llc: only change llc->dev when bind() succeeds
2022-03-28 09:58:46 +02:00
mac80211
wifi: mac80211: allow bw change during channel switch in mesh
2022-10-26 12:34:39 +02:00
mac802154
net: mac802154: Fix a condition in the receive path
2022-09-08 12:28:07 +02:00
mctp
mctp: Fix check for dev_hard_header() result
2022-04-13 20:59:16 +02:00
mpls
net: Use u64_stats_fetch_begin_irq() for stats fetch.
2022-09-08 12:28:07 +02:00
mptcp
mptcp: Fix crash due to tcp_tsorted_anchor was initialized before release skb
2022-08-31 17:16:50 +02:00
ncsi
net/ncsi: check for error return from call to nla_put_u32
2022-01-05 12:42:37 +01:00
netfilter
netfilter: conntrack: revisit the gc initial rescheduling bias
2022-10-26 12:34:45 +02:00
netlabel
netlabel: fix out-of-bounds memory accesses
2022-04-13 20:59:10 +02:00
netlink
net: genl: fix error path memory leak in policy dumping
2022-08-25 11:40:25 +02:00
netrom
netrom: fix api breakage in nr_setsockopt()
2022-01-27 11:04:00 +01:00
nfc
NFC: NULL out the dev->rfkill to prevent UAF
2022-06-09 10:22:46 +02:00
nsh
…
openvswitch
openvswitch: Fix overreporting of drops in dropwatch
2022-10-26 12:35:33 +02:00
packet
net/af_packet: check len when min_header_len equals to 0
2022-09-05 10:30:12 +02:00
phonet
phonet: refcount leak in pep_sock_accep
2022-01-11 15:35:16 +01:00
psample
…
qrtr
net: qrtr: start MHI channel after endpoit creation
2022-08-25 11:40:29 +02:00
rds
net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
2022-10-26 12:34:49 +02:00
rfkill
rfkill: make new event layout opt-in
2022-04-08 14:23:00 +02:00
rose
rose: check NULL rose_loopback_neigh->loopback
2022-08-31 17:16:38 +02:00
rxrpc
rxrpc: Fix calc of resend age
2022-09-23 14:15:50 +02:00
sched
net: sched: act_ct: fix possible refcount leak in tcf_ct_init()
2022-10-05 10:39:42 +02:00
sctp
sctp: handle the error returned from sctp_auth_asoc_init_active_key
2022-10-26 12:34:48 +02:00
smc
net/smc: Stop the CLC flow if no link to map buffers on
2022-09-28 11:11:53 +02:00
strparser
bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding
2021-11-18 19:17:11 +01:00
sunrpc
SUNRPC: RPC level errors should set task->tk_rpc_status
2022-08-31 17:16:37 +02:00
switchdev
net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge
2021-08-04 12:35:07 +01:00
tipc
tipc: fix shift wrapping bug in map_get()
2022-09-15 11:30:05 +02:00
tls
net/tls: Remove the context from the list in tls_device_down
2022-08-03 12:03:47 +02:00
unix
af_unix: Fix a data-race in unix_dgram_peer_wake_me().
2022-06-14 18:36:17 +02:00
vmw_vsock
vhost/vsock: Use kvmalloc/kvfree for larger packets.
2022-10-26 12:34:47 +02:00
wireless
wifi: cfg80211: update hidden BSSes to avoid WARN_ON
2022-10-15 07:59:03 +02:00
x25
net/x25: Fix null-ptr-deref caused by x25_disconnect
2022-04-08 14:23:53 +02:00
xdp
xsk: Fix backpressure mechanism on Tx
2022-10-26 12:34:40 +02:00
xfrm
xfrm: Update ipcomp_scratches with NULL when freed
2022-10-26 12:35:34 +02:00
compat.c
…
devres.c
net: devres: Correct a grammatical error
2021-06-11 12:55:28 -07:00
Kconfig
mctp: Add MCTP base
2021-07-29 15:06:49 +01:00
Makefile
mctp: Add MCTP base
2021-07-29 15:06:49 +01:00
socket.c
net: Fix a data-race around sysctl_somaxconn.
2022-08-31 17:16:45 +02:00
sysctl_net.c
…