mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-20 01:20:54 +00:00
Code Issues Releases Wiki Activity
linux-stable/net
History
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
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
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
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
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
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
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
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
compat.c
devres.c
Kconfig
Makefile
socket.c net: Fix a data-race around sysctl_somaxconn. 2022-08-31 17:16:45 +02:00
sysctl_net.c