Sungwoo Kim 19a7814396 Bluetooth: L2CAP: Fix u8 overflow ... [ Upstream commit bcd70260ef ] By keep sending L2CAP_CONF_REQ packets, chan->num_conf_rsp increases multiple times and eventually it will wrap around the maximum number (i.e., 255). This patch prevents this by adding a boundary check with L2CAP_MAX_CONF_RSP Btmon log: Bluetooth monitor ver 5.64 = Note: Linux version 6.1.0-rc2 (x86_64) 0.264594 = Note: Bluetooth subsystem version 2.22 0.264636 @ MGMT Open: btmon (privileged) version 1.22 {0x0001} 0.272191 = New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0) [hci0] 13.877604 @ RAW Open: 9496 (privileged) version 2.22 {0x0002} 13.890741 = Open Index: 00:00:00:00:00:00 [hci0] 13.900426 (...) > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #32 [hci0] 14.273106 invalid packet size (12 != 1033) 08 00 01 00 02 01 04 00 01 10 ff ff ............ > ACL Data RX: Handle 200 flags 0x00 dlen 1547 #33 [hci0] 14.273561 invalid packet size (14 != 1547) 0a 00 01 00 04 01 06 00 40 00 00 00 00 00 ........@..... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #34 [hci0] 14.274390 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04 ........@....... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #35 [hci0] 14.274932 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00 ........@....... = bluetoothd: Bluetooth daemon 5.43 14.401828 > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #36 [hci0] 14.275753 invalid packet size (12 != 1033) 08 00 01 00 04 01 04 00 40 00 00 00 ........@... Signed-off-by: Sungwoo Kim <iam@sung-woo.kim> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-12-21 17:36:38 +01:00
..
6lowpan	6lowpan: iphc: Fix an off-by-one check of array index	2021-07-22 16:19:03 +02:00
9p	9p/xen: check logical size for buffer size	2022-12-14 11:37:17 +01:00
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	net/atm: fix proc_mpc_write incorrect return value	2022-10-29 10:12:55 +02:00
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 u8 overflow	2022-12-21 17:36:38 +01:00
bpf	bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb()	2022-11-26 09:24:35 +01:00
bpfilter	bpfilter: Specify the log level for the kmsg message	2021-06-25 13:13:50 +02:00
bridge	bridge: switchdev: Fix memory leaks when changing VLAN protocol	2022-11-26 09:24:40 +01:00
caif	net: caif: fix double disconnect client in chnl_net_open()	2022-11-26 09:24:39 +01:00
can	can: af_can: fix NULL pointer dereference in can_rcv_filter	2022-12-14 11:37:22 +01:00
ceph	libceph: fix potential use-after-free on linger ping and resends	2022-05-25 09:57:28 +02:00
core	netfilter: conntrack: Fix data-races around ct mark	2022-12-02 17:41:04 +01:00
dcb	net: dcb: disable softirqs in dcbnl_flush_dev()	2022-03-08 19:12:52 +01:00
dccp	dccp/tcp: Reset saddr on failure after inet6?_hash_connect().	2022-12-02 17:41:07 +01:00
decnet	net: Fix data-races around sysctl_[rw]mem(_offset)?.	2022-08-03 12:03:51 +02:00
dns_resolver	…
dsa	net: dsa: sja1105: Check return value	2022-12-14 11:37:25 +01:00
ethernet	move netdev_boot_setup into Space.c	2021-08-03 13:05:26 +01:00
ethtool	ethtool: eeprom: fix null-deref on genl_info in dump	2022-11-03 23:59:14 +09:00
hsr	net: hsr: Fix potential use-after-free	2022-12-08 11:28:41 +01:00
ieee802154	net: ieee802154: fix error return code in dgram_bind()	2022-11-03 23:59:14 +09:00
ife	…
ipv4	ipv4: Fix incorrect route flushing when table ID 0 is used	2022-12-14 11:37:28 +01:00
ipv6	ipv6: avoid use-after-free in ip6_fragment()	2022-12-14 11:37:29 +01:00
iucv	net/iucv: Replace deprecated CPU-hotplug functions.	2021-08-09 10:13:32 +01:00
kcm	kcm: close race conditions on sk_receive_queue	2022-11-26 09:24:50 +01:00
key	xfrm: Fix oops in __xfrm_state_delete()	2022-12-02 17:41:06 +01:00
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: mac8021: fix possible oob access in ieee80211_get_rate_duration	2022-12-08 11:28:40 +01:00
mac802154	mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()	2022-12-14 11:37:25 +01:00
mctp	mctp: Fix an error handling path in mctp_init()	2022-11-16 09:58:22 +01:00
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: ctnetlink: fix compilation warning after data race fixes in ct mark	2022-12-14 11:37:23 +01:00
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: nci: Bounds check struct nfc_target arrays	2022-12-14 11:37:27 +01:00
nsh	…
openvswitch	netfilter: conntrack: Fix data-races around ct mark	2022-12-02 17:41:04 +01:00
packet	packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE	2022-12-08 11:28:41 +01:00
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: Fix NULL pointer dereference in rose_send_frame()	2022-11-10 18:15:29 +01:00
rxrpc	rxrpc: Fix race between conn bundle lookup and bundle removal [ZDI-CAN-15975]	2022-12-02 17:41:04 +01:00
sched	net: sched: allow act_ct to be built without NF_NAT	2022-12-02 17:41:06 +01:00
sctp	sctp: fix memory leak in sctp_stream_outq_migrate()	2022-12-08 11:28:41 +01:00
smc	net/smc: Fix possible leaked pernet namespace in smc_init()	2022-11-10 18:15:31 +01:00
strparser	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding	2021-11-18 19:17:11 +01:00
sunrpc	SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed	2022-11-10 18:15:26 +01:00
switchdev	net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge	2021-08-04 12:35:07 +01:00
tipc	tipc: call tipc_lxc_xmit without holding node_read_lock	2022-12-14 11:37:29 +01:00
tls	net/tls: Remove the context from the list in tls_device_down	2022-08-03 12:03:47 +02:00
unix	af_unix: Get user_ns from in_skb in unix_diag_get_exact().	2022-12-14 11:37:24 +01:00
vmw_vsock	vsock: fix possible infinite sleep in vsock_connectible_wait_data()	2022-11-10 18:15:31 +01:00
wireless	wifi: cfg80211: don't allow multi-BSSID in S1G	2022-12-08 11:28:40 +01:00
x25	net/x25: Fix skb leak in x25_lapb_receive_frame()	2022-11-26 09:24:41 +01:00
xdp	xsk: Fix backpressure mechanism on Tx	2022-10-26 12:34:40 +02:00
xfrm	xfrm: replay: Fix ESN wrap around for GSO	2022-12-02 17:41:02 +01:00
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
compat.c	net: Return the correct errno code	2021-06-03 15:13:56 -07:00
devres.c	net: devres: Correct a grammatical error	2021-06-11 12:55:28 -07:00
socket.c	net: Fix a data-race around sysctl_somaxconn.	2022-08-31 17:16:45 +02:00
sysctl_net.c	net: Ensure net namespace isolation of sysctls	2021-04-12 13:27:11 -07:00