armbian/linux
0
0
Fork 0
mirror of https://github.com/armbian/linux.git synced 2026-01-06 10:13:00 -08:00
Code Issues Packages Projects Releases Wiki Activity
Files
bbb8ae42eb210ba2bdff67450f3737e10cb042f3
linux/include/net
History
Eric Dumazet 8a533666d1 net: fix NULL dereferences in check_peer_redir() 
[ Upstream commit d3aaeb38c4, along
  with dependent backports of commits:
     69cce1d140
     9de79c127c
     218fa90f07
     580da35a31
     f7e57044ee
     e049f28883 ]

Gergely Kalman reported crashes in check_peer_redir().

It appears commit f39925dbde (ipv4: Cache learned redirect
information in inetpeer.) added a race, leading to possible NULL ptr
dereference.

Since we can now change dst neighbour, we should make sure a reader can
safely use a neighbour.

Add RCU protection to dst neighbour, and make sure check_peer_redir()
can be called safely by different cpus in parallel.

As neighbours are already freed after one RCU grace period, this patch
should not add typical RCU penalty (cache cold effects)

Many thanks to Gergely for providing a pretty report pointing to the
bug.

Reported-by: Gergely Kalman <synapse@hippy.csoma.elte.hu>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-13 11:06:13 -08:00
..
9p
fs/9p: Use protocol-defined value for lock/getlock 'type' field.
2011-10-03 11:40:22 -07:00
bluetooth
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2011-05-16 19:32:19 -04:00
caif
caif: Update documentation of CAIF transmit and receive functions.
2011-05-22 20:11:48 -04:00
irda
Fix common misspellings
2011-03-31 11:26:23 -03:00
iucv
Fix common misspellings
2011-03-31 11:26:23 -03:00
netfilter
netfilter: nf_nat: avoid double seq_adjust for loopback
2011-06-16 17:29:22 +02:00
netns
netns: Fail conspicously if someone uses net_generic at an inappropriate time.
2012-02-03 09:19:03 -08:00
phonet
net: dont hold rtnl mutex during netlink dump callbacks
2011-05-02 15:26:28 -07:00
sctp
sctp: fix incorrect overflow check on autoclose
2012-01-06 14:14:08 -08:00
tc_act
…
act_api.h
…
addrconf.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
af_ieee802154.h
…
af_rxrpc.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
af_unix.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
ah.h
ipsec: update MAX_AH_AUTH_LEN to support sha512
2011-01-13 21:48:25 -08:00
arp.h
net: fix NULL dereferences in check_peer_redir()
2012-02-13 11:06:13 -08:00
atmclip.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
ax25.h
…
ax88796.h
…
cfg80211.h
mac80211: fix rx->key NULL dereference during mic failure
2011-06-27 14:45:25 -04:00
checksum.h
…
cipso_ipv4.h
…
cls_cgroup.h
…
compat.h
net: Add sendmmsg socket system call
2011-05-05 11:10:14 -07:00
datalink.h
…
dcbevent.h
net_dcb: add application notifiers
2010-12-31 10:47:46 -08:00
dcbnl.h
dcbnl: add support for retrieving peer configuration - cee
2011-03-02 21:58:55 -08:00
dn_dev.h
…
dn_fib.h
decnet: Convert to use flowidn where applicable.
2011-03-12 15:08:55 -08:00
dn_neigh.h
…
dn_nsp.h
…
dn_route.h
decnet: Convert to use flowidn where applicable.
2011-03-12 15:08:55 -08:00
dn.h
decnet: Convert to use flowidn where applicable.
2011-03-12 15:08:55 -08:00
dsa.h
…
dsfield.h
…
dst_ops.h
net: Implement read-only protection and COW'ing of metrics.
2011-01-26 20:51:05 -08:00
dst.h
net: fix NULL dereferences in check_peer_redir()
2012-02-13 11:06:13 -08:00
esp.h
…
ethoc.h
…
fib_rules.h
…
flow.h
net: Handle different key sizes between address families in flow cache
2011-11-11 09:37:17 -08:00
garp.h
garp: remove last synchronize_rcu() call
2011-05-12 17:46:56 -04:00
gen_stats.h
Fix common misspellings
2011-03-31 11:26:23 -03:00
genetlink.h
treewide: fix a few typos in comments
2011-05-10 10:16:21 +02:00
gre.h
…
icmp.h
inetpeer: Move ICMP rate limiting state into inet_peer entries.
2011-02-04 15:59:53 -08:00
ieee80211_radiotap.h
mac80211: add MCS information to radiotap
2011-01-28 15:44:29 -05:00
ieee802154_netdev.h
…
ieee802154.h
…
if_inet6.h
ipv6: reduce per device ICMP mib sizes
2011-05-19 16:21:22 -04:00
inet6_connection_sock.h
inet: Pass flowi to ->queue_xmit().
2011-05-08 15:28:28 -07:00
inet6_hashtables.h
…
inet_common.h
…
inet_connection_sock.h
ipv4: Make caller provide flowi4 key to inet_csk_route_req().
2011-05-18 18:32:03 -04:00
inet_ecn.h
ipv6: restore correct ECN handling on TCP xmit
2011-05-12 18:52:14 -04:00
inet_frag.h
…
inet_hashtables.h
…
inet_sock.h
inet: Decrease overhead of on-stack inet_cork.
2011-05-06 15:37:57 -07:00
inet_timewait_sock.h
…
inetpeer.h
inet: constify ip headers and in6_addr
2011-04-22 11:04:14 -07:00
ip6_checksum.h
…
ip6_fib.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
ip6_route.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
ip6_tunnel.h
…
ip_fib.h
ipv4: Call fib_select_default() only when actually necessary.
2011-04-14 15:05:22 -07:00
ip_vs.h
IPVS: bug in ip_vs_ftp, same list heaad used in all netns.
2011-05-27 13:37:46 +02:00
ip.h
ipv4: Pass explicit daddr arg to ip_send_reply().
2011-05-10 13:32:46 -07:00
ipcomp.h
…
ipconfig.h
…
ipip.h
…
ipv6.h
ipv6: fix NULL dereference in udp6_ufo_fragment()
2011-10-16 14:14:54 -07:00
ipx.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
iw_handler.h
Fix common misspellings
2011-03-31 11:26:23 -03:00
lapb.h
…
lib80211.h
…
llc_c_ac.h
…
llc_c_ev.h
…
llc_c_st.h
…
llc_conn.h
…
llc_if.h
…
llc_pdu.h
bonding,llc: Fix structure sizeof incompatibility for some PDUs
2011-05-13 15:13:24 -04:00
llc_s_ac.h
…
llc_s_ev.h
…
llc_s_st.h
…
llc_sap.h
…
llc.h
…
mac80211.h
Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2011-05-24 16:47:54 -04:00
mip6.h
…
mld.h
…
ndisc.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
neighbour.h
…
net_namespace.h
Delay struct net freeing while there's a sysfs instance refering to it
2011-06-12 17:45:41 -04:00
net_ratelimit.h
net: Kill ratelimit.h dependency in linux/net.h
2011-05-27 13:41:33 -04:00
netdma.h
…
netevent.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
netlabel.h
…
netlink.h
treewide: fix a few typos in comments
2011-05-10 10:16:21 +02:00
netrom.h
…
nexthop.h
…
nl802154.h
…
p8022.h
…
ping.h
net: ping: fix build failure
2011-05-17 14:16:58 -04:00
pkt_cls.h
…
pkt_sched.h
Fix common misspellings
2011-03-31 11:26:23 -03:00
protocol.h
net: change netdev->features to u32
2011-01-24 15:32:47 -08:00
psnap.h
…
raw.h
…
rawv6.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
red.h
sched: remove unused backlog in RED stats
2011-01-12 19:00:39 -08:00
regulatory.h
…
request_sock.h
…
rose.h
rose: Add length checks to CALL_REQUEST parsing
2011-03-27 17:59:04 -07:00
route.h
ipv4: Pass explicit destination address to rt_bind_peer().
2011-05-18 18:42:43 -04:00
rtnetlink.h
…
sch_generic.h
net_sched: fix THROTTLED/RUNNING race
2011-03-24 00:13:14 -07:00
scm.h
…
secure_seq.h
net: Compute protocol sequence numbers and fragment IDs using MD5.
2011-08-15 18:31:35 -07:00
slhc_vj.h
…
snmp.h
ipv6: reduce per device ICMP mib sizes
2011-05-19 16:21:22 -04:00
sock.h
Fix some kernel-doc warnings
2011-06-27 16:06:19 -07:00
stp.h
…
tcp_states.h
…
tcp.h
tcp: Remove debug macro of TCP_CHECK_TIMER
2011-02-20 11:10:14 -08:00
timewait_sock.h
…
transp_v6.h
ipv6: make fragment identifications less predictable
2011-08-15 18:31:37 -07:00
udp.h
udp: Switch to ip_finish_skb
2011-03-01 12:35:03 -08:00
udplite.h
udp: Switch to ip_finish_skb
2011-03-01 12:35:03 -08:00
wext.h
…
wimax.h
net: Remove __KERNEL__ cpp checks from include/net
2011-04-24 10:54:56 -07:00
wpan-phy.h
Fix common misspellings
2011-03-31 11:26:23 -03:00
x25.h
…
x25device.h
…
xfrm.h
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6
2011-05-11 14:26:58 -04:00