Duoming Zhou bc6de28784 drivers: net: hippi: Fix deadlock in rr_close() ... There is a deadlock in rr_close(), which is shown below: (Thread 1) | (Thread 2) | rr_open() rr_close() | add_timer() spin_lock_irqsave() //(1) | (wait a time) ... | rr_timer() del_timer_sync() | spin_lock_irqsave() //(2) (wait timer to stop) | ... We hold rrpriv->lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need rrpriv->lock in position (2) of thread 2. As a result, rr_close() will block forever. This patch extracts del_timer_sync() from the protection of spin_lock_irqsave(), which could let timer handler to obtain the needed lock. Signed-off-by: Duoming Zhou <duoming@zju.edu.cn> Link: https://lore.kernel.org/r/20220417125519.82618-1-duoming@zju.edu.cn Signed-off-by: Paolo Abeni <pabeni@redhat.com>		2022-04-21 10:30:45 +02:00
..
appletalk
arcnet	net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()	2022-03-03 10:29:13 +00:00
bonding	bonding: do not discard lowest hash bit for non layer3+4 hashing	2022-04-17 13:34:01 +01:00
caif	net: caif: Use netif_rx().	2022-03-04 12:02:19 +00:00
can	can: gs_usb: gs_make_candev(): fix memory leak for devices with extended bit timing configuration	2022-03-31 09:55:27 +02:00
dsa	net: dsa: felix: fix tagging protocol changes with multiple CPU ports	2022-04-14 08:52:26 +02:00
ethernet	net: stmmac: Use readl_poll_timeout_atomic() in atomic state	2022-04-20 11:10:27 +01:00
fddi
fjes
hamradio	hamradio: Fix wrong assignment of 'bbc->cfg.loopback'	2022-03-16 19:17:49 -07:00
hippi	drivers: net: hippi: Fix deadlock in rr_close()	2022-04-21 10:30:45 +02:00
hyperv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-03-17 13:56:58 -07:00
ieee802154	spi: Updates for v5.18	2022-03-21 18:33:57 -07:00
ipa	net: ipa: use struct_size() for the interconnect array	2022-03-11 22:50:07 -08:00
ipvlan	net: add per-cpu storage and net->core_stats	2022-03-11 23:17:24 -08:00
mctp	mctp i2c: correct mctp_i2c_header_create result	2022-04-01 12:04:15 +01:00
mdio	net: mdio: don't defer probe forever if PHY IRQ provider is missing	2022-04-08 14:17:55 -07:00
netdevsim	devlink: hold the instance lock during eswitch_mode callbacks	2022-03-21 14:11:38 +00:00
pcs
phy	net: phy: LAN937x: added PHY_POLL_CABLE_TEST flag	2022-04-15 10:50:01 +01:00
plip	slip/plip: Use netif_rx().	2022-03-06 11:05:31 +00:00
ppp
slip	drivers: net: slip: fix NPD bug in sl_tx_timeout()	2022-04-06 23:00:16 -07:00
team
usb	net: usb: aqc111: Fix out-of-bounds accesses in RX fixup	2022-04-06 15:22:49 +01:00
vmxnet3
vxlan	vxlan: fix error return code in vxlan_fdb_append	2022-04-08 12:35:12 +01:00
wan	Networking changes for 5.18.	2022-03-24 13:13:26 -07:00
wireguard	wireguard: socket: ignore v6 endpoints when ipv6 is disabled	2022-03-30 19:14:09 -07:00
wireless	Networking fixes for 5.18-rc3, including fixes from wireless and	2022-04-14 11:58:19 -07:00
wwan	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-03-23 10:53:49 -07:00
xen-netback
amt.c
bareudp.c	bareudp: use ipv6_mod_enabled to check if IPv6 enabled	2022-03-16 19:16:57 -07:00
dummy.c
eql.c
geneve.c	net: geneve: add missing netlink policy and size for IFLA_GENEVE_INNER_PROTO_INHERIT	2022-03-22 22:19:46 -07:00
gtp.c	gtp: Fix inconsistent indenting	2022-03-16 08:47:02 -07:00
ifb.c
Kconfig
LICENSE.SRC
loopback.c	net: Add skb_clear_tstamp() to keep the mono delivery_time	2022-03-03 14:38:48 +00:00
macsec.c
macvlan.c	macvlan: Fix leaking skb in source mode with nodst option	2022-04-13 12:25:02 +01:00
macvtap.c	macvtap: advertise link netns via netlink	2022-03-01 17:59:28 -08:00
Makefile	vxlan: move to its own directory	2022-03-01 08:38:01 +00:00
mdio.c
mhi_net.c
mii.c
net_failover.c	net: add per-cpu storage and net->core_stats	2022-03-11 23:17:24 -08:00
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c	net: tap: track dropped skb via kfree_skb_reason()	2022-03-06 11:04:01 +00:00
thunderbolt.c
tun.c	tun: annotate access to queue->trans_start	2022-04-14 08:30:09 +02:00
veth.c	veth: Ensure eth header is in skb's linear part	2022-04-08 12:15:28 +01:00
virtio_net.c	virtio: features, fixes	2022-03-31 13:57:15 -07:00
vrf.c	vrf: fix packet sniffing for traffic originating from ip tunnels	2022-04-01 11:56:55 +01:00
vsockmon.c
xen-netfront.c	xen/grant-table: remove readonly parameter from functions	2022-03-15 20:34:40 -05:00