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Veaceslav Falico 5b9e9be775 af_packet: block BH in prb_shutdown_retire_blk_timer() 
[ Upstream commit ec6f809ff6 ]

Currently we're using plain spin_lock() in prb_shutdown_retire_blk_timer(),
however the timer might fire right in the middle and thus try to re-aquire
the same spinlock, leaving us in a endless loop.

To fix that, use the spin_lock_bh() to block it.

Fixes: f6fb8f100b ("af-packet: TPACKET_V3 flexible buffer implementation.")
CC: "David S. Miller" <davem@davemloft.net>
CC: Daniel Borkmann <dborkman@redhat.com>
CC: Willem de Bruijn <willemb@google.com>
CC: Phil Sutter <phil@nwl.cc>
CC: Eric Dumazet <edumazet@google.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-08 07:29:26 -08:00
..
9p 9p: send uevent after adding/removing mount_tag attribute 2013-12-04 10:57:19 -08:00
802 net/802/mrp: fix lockdep splat 2013-05-14 13:02:30 -07:00
8021q net: vlan: fix nlmsg size calculation in vlan_get_size() 2013-11-04 04:31:02 -08:00
appletalk net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
atm net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
ax25 net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
batman-adv batman-adv: set up network coding packet handlers during module init 2013-11-20 12:27:47 -08:00
bluetooth net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
bridge bridge: flush br's address entry in fdb when remove the bridge dev 2013-12-08 07:29:26 -08:00
caif net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
can Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
ceph libceph: use pg_num_mask instead of pgp_num_mask for pg.seed calc 2013-09-26 17:18:29 -07:00
core net: core: Always propagate flag changes to interfaces 2013-12-08 07:29:26 -08:00
dcb rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
dccp net:dccp: do not report ICMP redirects to user space 2013-10-13 16:08:30 -07:00
decnet decnet: remove duplicated include from dn_table.c 2013-04-07 17:12:01 -04:00
dns_resolver
dsa dsa: fix freeing of sparse port allocation 2013-03-25 12:23:41 -04:00
ethernet net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
ieee802154 inet: prevent leakage of uninitialized memory to user in recv syscalls 2013-12-08 07:29:25 -08:00
ipv4 ipv4: fix race in concurrent ip_route_input_slow() 2013-12-08 07:29:26 -08:00
ipv6 netfilter: push reasm skb through instead of original frag skbs 2013-12-08 07:29:25 -08:00
ipx net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
irda net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
iucv net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
key net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
l2tp inet: fix addr_len/msg->msg_namelen assignment in recv_error and rxpmtu functions 2013-12-08 07:29:25 -08:00
lapb
llc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
mac80211 mac80211: fix crash if bitrate calculation goes wrong 2013-11-13 12:05:30 +09:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-30 03:55:20 -04:00
netfilter netfilter: push reasm skb through instead of original frag skbs 2013-12-08 07:29:25 -08:00
netlabel netlabel: improve domain mapping validation 2013-05-19 14:49:55 -07:00
netlink net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
netrom net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
nfc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
openvswitch openvswitch: Remove unneeded ovs_netdev_get_ifindex() 2013-04-30 00:19:11 -04:00
packet af_packet: block BH in prb_shutdown_retire_blk_timer() 2013-12-08 07:29:26 -08:00
phonet inet: prevent leakage of uninitialized memory to user in recv syscalls 2013-12-08 07:29:25 -08:00
rds net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
rfkill Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-04-22 14:58:14 -04:00
rose net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
rxrpc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
sched net_sched: htb: fix a typo in htb_change_class() 2013-10-13 16:08:29 -07:00
sctp sctp: Perform software checksum if packet has to be fragmented. 2013-11-04 04:31:04 -08:00
sunrpc SUNRPC: Fix a data corruption issue when retransmitting RPC calls 2013-11-29 11:11:52 -08:00
tipc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
unix net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
vmw_vsock net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
wimax
wireless cfg80211: fix scheduled scan pointer access 2013-12-04 10:57:30 -08:00
x25 net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
xfrm xfrm: force a garbage collection after deleting a policy 2013-05-31 17:30:07 -07:00
compat.c net: clamp ->msg_namelen instead of returning an error 2013-12-08 07:29:25 -08:00
Kconfig netlink: kconfig: move mmap i/o into netlink kconfig 2013-05-01 15:02:42 -04:00
Makefile VSOCK: Introduce VM Sockets 2013-02-10 19:41:08 -05:00
nonet.c
socket.c net: clamp ->msg_namelen instead of returning an error 2013-12-08 07:29:25 -08:00
sysctl_net.c net: Update the sysctl permissions handler to test effective uid/gid 2013-10-13 16:08:34 -07:00