Duoming Zhou 23dd458135 NFC: nci: fix sleep in atomic context bugs caused by nci_skb_alloc ... There are sleep in atomic context bugs when the request to secure element of st-nci is timeout. The root cause is that nci_skb_alloc with GFP_KERNEL parameter is called in st_nci_se_wt_timeout which is a timer handler. The call paths that could trigger bugs are shown below: (interrupt context 1) st_nci_se_wt_timeout nci_hci_send_event nci_hci_send_data nci_skb_alloc(..., GFP_KERNEL) //may sleep (interrupt context 2) st_nci_se_wt_timeout nci_hci_send_event nci_hci_send_data nci_send_data nci_queue_tx_data_frags nci_skb_alloc(..., GFP_KERNEL) //may sleep This patch changes allocation mode of nci_skb_alloc from GFP_KERNEL to GFP_ATOMIC in order to prevent atomic context sleeping. The GFP_ATOMIC flag makes memory allocation operation could be used in atomic context. Fixes: ed06aeefda ("nfc: st-nci: Rename st21nfcb to st-nci") Signed-off-by: Duoming Zhou <duoming@zju.edu.cn> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220517012530.75714-1-duoming@zju.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2022-05-17 17:55:53 -07:00
..
6lowpan	net: don't include ndisc.h from ipv6.h	2022-02-04 14:15:11 -08:00
9p	xen/grant-table: remove readonly parameter from functions	2022-03-15 20:34:40 -05:00
802
8021q	vlan: use correct format characters	2022-03-17 16:34:49 -07:00
appletalk
atm
ax25	ax25: Fix UAF bugs in ax25 timers	2022-03-29 10:24:34 +02:00
batman-adv	batman-adv: Don't skb_split skbuffs with frag_list	2022-04-17 23:41:44 +02:00
bluetooth	Bluetooth: Fix the creation of hdev->name	2022-05-11 17:18:42 -07:00
bpf	bpf: Fix release of page_pool in BPF_PROG_RUN in test runner	2022-04-11 17:30:15 +02:00
bpfilter	uaccess: remove CONFIG_SET_FS	2022-02-25 09:36:06 +01:00
bridge	net: bridge: switchdev: check br_vlan_group() return value	2022-04-22 15:12:18 -07:00
caif	net: caif: Use netif_rx().	2022-03-04 12:02:19 +00:00
can	can: isotp: remove re-binding of bound socket	2022-04-29 11:02:47 +02:00
ceph	libceph: disambiguate cluster/pool full log message	2022-04-25 10:45:15 +02:00
core	net: fix wrong network header length	2022-05-09 10:48:49 +01:00
dcb	net: dcb: disable softirqs in dcbnl_flush_dev()	2022-03-03 08:01:55 -08:00
dccp	Revert "tcp/dccp: get rid of inet_twsk_purge()"	2022-05-13 12:24:12 +01:00
decnet	decnet: Use container_of() for struct dn_neigh casts	2022-05-10 12:21:51 +02:00
dns_resolver
dsa	net: dsa: flush switchdev workqueue on bridge join error path	2022-05-09 18:08:04 -07:00
ethernet
ethtool	ethtool: add support to set/get completion queue event size	2022-02-23 20:33:05 -08:00
hsr	net: add per-cpu storage and net->core_stats	2022-03-11 23:17:24 -08:00
ieee802154	net: ipv6: Handle delivery_time in ipv6 defrag	2022-03-03 14:38:48 +00:00
ife
ipv4	Revert "tcp/dccp: get rid of inet_twsk_purge()"	2022-05-13 12:24:12 +01:00
ipv6	Revert "tcp/dccp: get rid of inet_twsk_purge()"	2022-05-13 12:24:12 +01:00
iucv	s390/iucv: sort out physical vs virtual pointers usage	2022-02-22 16:09:13 -08:00
kcm
key	af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register	2022-03-10 07:39:47 +01:00
l2tp
l3mdev	l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu	2022-04-15 14:27:24 -07:00
lapb
llc	llc: only change llc->dev when bind() succeeds	2022-03-25 16:55:41 -07:00
mac80211	mac80211: Reset MBSSID parameters upon connection	2022-05-04 11:37:46 +02:00
mac802154
mctp	mctp: defer the kfree of object mdev->addrs	2022-04-26 09:14:47 +02:00
mpls	net: mpls: Fix GCC 12 warning	2022-02-10 15:29:39 +00:00
mptcp	mptcp: fix subflow accounting on close	2022-05-13 17:04:30 -07:00
ncsi
netfilter	netfilter: nft_socket: only do sk lookups when indev is available	2022-04-28 16:15:23 +02:00
netlabel	netlabel: fix out-of-bounds memory accesses	2022-03-21 10:59:11 +00:00
netlink	netlink: do not reset transport header in netlink_recvmsg()	2022-05-06 15:37:36 -07:00
netrom
nfc	NFC: nci: fix sleep in atomic context bugs caused by nci_skb_alloc	2022-05-17 17:55:53 -07:00
nsh
openvswitch	openvswitch: fix OOB access in reserve_sfa_size()	2022-04-15 11:50:02 +01:00
packet	net/packet: fix packet_sock xmit return value checking	2022-04-15 11:17:30 +01:00
phonet	phonet: Use netif_rx().	2022-03-07 11:40:41 +00:00
psample
qrtr
rds	net: rds: use maybe_get_net() when acquiring refcount on TCP sockets	2022-05-05 16:44:49 -07:00
rfkill	rfkill: make new event layout opt-in	2022-03-18 13:09:17 +02:00
rose
rxrpc	rxrpc: Enable IPv6 checksums on transport socket	2022-04-30 13:59:34 +01:00
sched	net/sched: act_pedit: sanitize shift argument before usage	2022-05-16 11:48:30 +01:00
sctp	sctp: check asoc strreset_chunk in sctp_generate_reconf_event	2022-04-23 22:34:17 +01:00
smc	net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending	2022-05-12 10:01:36 -07:00
strparser
sunrpc	Revert "SUNRPC: attempt AF_LOCAL connect on setup"	2022-04-29 20:38:27 -04:00
switchdev	net: switchdev: remove lag_mod_cb from switchdev_handle_fdb_event_to_device	2022-02-24 21:31:43 -08:00
tipc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-03-23 10:53:49 -07:00
tls	tls: Fix context leak on tls_device_down	2022-05-12 10:01:36 -07:00
unix	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-03-23 10:53:49 -07:00
vmw_vsock	vsock/virtio: enable VQs early on probe	2022-03-24 18:36:36 -07:00
wireless	nl80211: fix locking in nl80211_set_tx_bitrate_mask()	2022-05-09 14:00:07 +02:00
x25	net/x25: Fix null-ptr-deref caused by x25_disconnect	2022-03-26 11:48:16 -07:00
xdp	xsk: Fix possible crash when multiple sockets are created	2022-04-26 16:19:54 +02:00
xfrm	xfrm: set dst dev to blackhole_netdev instead of loopback_dev in ifdown	2022-05-17 11:02:07 +02:00
compat.c
devres.c
Kconfig	page_pool: Add allocation stats	2022-03-03 09:55:28 +00:00
Kconfig.debug
Makefile
socket.c	fs: allocate inode by using alloc_inode_sb()	2022-03-22 15:57:03 -07:00
sysctl_net.c