linux/net
Tetsuo Handa 9cfc84b1d4 Bluetooth: hci_core: cancel all works upon hci_unregister_dev()
[ Upstream commit 0d151a1037 ]

syzbot is reporting that calling hci_release_dev() from hci_error_reset()
due to hci_dev_put() from hci_error_reset() can cause deadlock at
destroy_workqueue(), for hci_error_reset() is called from
hdev->req_workqueue which destroy_workqueue() needs to flush.

We need to make sure that hdev->{rx_work,cmd_work,tx_work} which are
queued into hdev->workqueue and hdev->{power_on,error_reset} which are
queued into hdev->req_workqueue are no longer running by the moment

       destroy_workqueue(hdev->workqueue);
       destroy_workqueue(hdev->req_workqueue);

are called from hci_release_dev().

Call cancel_work_sync() on these work items from hci_unregister_dev()
as soon as hdev->list is removed from hci_dev_list.

Reported-by: syzbot <syzbot+da0a9c9721e36db712e8@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=da0a9c9721e36db712e8
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-07-27 10:38:32 +02:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-09-15 09:47:31 +02:00
9p net/9p: fix uninit-value in p9_client_rpc() 2024-06-16 13:28:51 +02:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2023-01-18 11:41:37 +01:00
8021q vlan: skip nested type that is not IFLA_VLAN_QOS_MAPPING 2024-02-23 08:24:50 +01:00
appletalk appletalk: Fix Use-After-Free in atalk_ioctl 2023-12-20 15:41:18 +01:00
atm atm: Fix Use-After-Free in do_vcc_ioctl 2023-12-20 15:41:15 +01:00
ax25 ax25: Fix UAF bugs in ax25 timers 2022-04-20 09:19:40 +02:00
batman-adv batman-adv: Don't accept TT entries for out-of-spec VIDs 2024-07-05 09:08:31 +02:00
bluetooth Bluetooth: hci_core: cancel all works upon hci_unregister_dev() 2024-07-27 10:38:32 +02:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2023-01-18 11:41:04 +01:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-07-14 16:53:33 +02:00
bridge net: bridge: fix corrupted ethernet header on multicast-to-unicast 2024-05-17 11:43:54 +02:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:32:51 +01:00
can net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new 2024-07-05 09:08:30 +02:00
ceph libceph: fix race between delayed_work() and ceph_monc_stop() 2024-07-18 11:40:55 +02:00
core ipv6: Fix data races around sk->sk_prot. 2024-07-05 09:08:32 +02:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 11:53:57 +02:00
dccp dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2023-11-20 10:30:15 +01:00
decnet Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
dns_resolver
dsa net: dsa: tag_sja1105: fix MAC DA patching from meta frames 2023-07-27 08:37:24 +02:00
ethernet ethernet: Add helper for assigning packet type when dest address does not match device address 2024-05-02 16:18:36 +02:00
hsr hsr: Handle failures in module init 2024-03-26 18:22:25 -04:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-11-03 23:56:54 +09:00
ife net: sched: ife: fix potential use-after-free 2024-01-08 11:29:44 +01:00
ipv4 tcp: avoid too many retransmit packets 2024-07-18 11:40:56 +02:00
ipv6 ila: block BH in ila_output() 2024-07-27 10:38:29 +02:00
iucv net/iucv: Avoid explicit cpumask var allocation on stack 2024-07-05 09:08:28 +02:00
kcm net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function 2024-03-26 18:22:18 -04:00
key net: af_key: fix sadb_x_filter validation 2023-08-30 16:27:16 +02:00
l2tp net l2tp: drop flow hash on forward 2024-05-17 11:43:49 +02:00
l3mdev l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu 2022-04-27 13:50:47 +02:00
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:25:28 +01:00
llc llc: call sock_orphan() at release time 2024-02-23 08:25:04 +01:00
mac80211 wifi: mac80211: fix UBSAN noise in ieee80211_prep_hw_scan() 2024-07-27 10:38:29 +02:00
mac802154 net: mac802154: Fix racy device stats updates by DEV_STATS_INC() and DEV_STATS_ADD() 2024-07-27 10:38:31 +02:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:50:41 +01:00
ncsi net/ncsi: Fix netlink major/minor version numbers 2024-01-25 14:34:25 -08:00
netfilter netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers 2024-07-05 09:08:27 +02:00
netlabel calipso: fix memory leak in netlbl_calipso_add_pass() 2024-01-25 14:34:23 -08:00
netlink netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter 2024-03-06 14:36:08 +00:00
netrom netrom: Fix a memory leak in nr_heartbeat_expiry() 2024-07-05 09:08:22 +02:00
nfc nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() 2024-06-16 13:28:46 +02:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-05-17 11:43:49 +02:00
openvswitch openvswitch: Set the skbuff pkt_type for proper pmtud support. 2024-06-16 13:28:45 +02:00
packet af_packet: do not call packet_read_pending() from tpacket_destruct_skb() 2024-06-16 13:28:40 +02:00
phonet phonet: fix rtm_phonet_notify() skb allocation 2024-05-17 11:43:54 +02:00
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2023-12-13 18:18:17 +01:00
qrtr net: qrtr: fix another OOB Read in qrtr_endpoint_post 2021-09-03 10:08:12 +02:00
rds net/rds: fix possible cp null dereference 2024-04-13 12:51:33 +02:00
rfkill net: rfkill: gpio: set GPIO direction 2024-01-08 11:29:47 +01:00
rose net/rose: fix races in rose_kill_by_device() 2024-01-08 11:29:44 +01:00
rxrpc rxrpc: Fix response to PING RESPONSE ACKs to a dead call 2024-02-23 08:25:07 +01:00
sched net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc() 2024-07-05 09:08:23 +02:00
sctp sctp: prefer struct_size over open coded arithmetic 2024-07-18 11:40:48 +02:00
smc net/smc: fix illegal rmb_desc access in SMC-D connection dump 2024-02-23 08:24:50 +01:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-17 09:48:48 +01:00
sunrpc SUNRPC: Fix RPC client cleaned up the freed pipefs dentries 2024-07-18 11:40:56 +02:00
switchdev net: switchdev: do not propagate bridge updates across bridges 2021-10-27 09:54:24 +02:00
tipc tipc: fix UAF in error path 2024-05-17 11:43:55 +02:00
tls tls: stop recv() if initial process_rx_list gave us non-DATA 2024-03-01 13:13:37 +01:00
unix af_unix: Annotate data-race of sk->sk_shutdown in sk_diag_fill(). 2024-07-05 09:08:12 +02:00
vmw_vsock virtio/vsock: fix logic which reduces credit update messages 2024-01-25 14:34:25 -08:00
wimax
wireless wifi: cfg80211: wext: add extra SIOCSIWSCAN data check 2024-07-27 10:38:30 +02:00
x25 net/x25: fix incorrect parameter validation in the x25_getsockopt() function 2024-03-26 18:22:18 -04:00
xdp xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING 2024-06-16 13:28:52 +02:00
xfrm net: fix __dst_negative_advice() race 2024-06-16 13:28:52 +02:00
compat.c net: Return the correct errno code 2021-06-18 09:59:00 +02:00
Kconfig Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
socket.c net: Save and restore msg_namelen in sock_sendmsg 2024-01-15 18:25:26 +01:00
sysctl_net.c