|author||Linus Torvalds <firstname.lastname@example.org>||2013-06-26 19:24:37 -1000|
|committer||Linus Torvalds <email@example.com>||2013-06-26 19:24:37 -1000|
Pull networking fixes from David Miller: 1) Found via trinity: If you connect up an ipv6 socket to an ipv4 mapped address then an ipv6 one, sendmsg() can croak because ip6_sk_dst_check() assumes the route cached in the socket is an ipv6 one. In this case there is an ipv4 route attached, so it gets stomped on. Reported by Dave Jones and Hannes Frederic Sowa, fixed by Eric Dumazet. 2) AF_KEY notifications leak some kernel memory to userspace, fix from Mathias Krause. 3) DLCI calls __dev_get_by_name() without proper locking, and dlci_del doesn't validate that the device being deleted is actually a DLCI one. Fixes from Li Zefan. 4) Length check on bluetooth l2cap information responses is wrong, each response type has a different lenth, so we should make sure it's in a given range rather than enforce one single valid length. From Jaganath Kanakkassery. 5) Receive FIFO overflow is really easy to trigger in stress scenerios in the sh_eth driver, but the event isn't being handled properly at all. Specifically, the mask of error interrupts doesn't include the event so we never clear it, resulting in the driver becomming wedged processing an interrupt that never gets cleared. Fix from Sergei Shtylyov. 6) qlcnic sleeps while holding a spinlock, use mdelay() instead of msleep(). From Shahed Shaikh. 7) Missing curly braces causes SIP netfilter NAT module to always drop packets. Fix from Balazs Peter Odor. 8) ipt_ULOG in netfilter passes the wrong value to timer setup, causing the timer to dereference crap when it fires. Fix from Gao Feng. 9) Missing RCU protection around txq->axq_acq traversal in ath_txq_schedule(). Fix from Felix Fietkau. 10) Idle state transition test in ath9k_htc_config() is reversed, fix from Sujith Manoharan. 11) IPV6 forwarding handles unicast Router Alert packets incorrectly. It tests the wrong option state. Previously opt->ra being non-zero indicated a router alert marking in the SKB, but now it's indicated by a bit in opt->flags. Fix from YOSHIFUJI Hideaki. 12) SKB leak in GRE tunnel GSO handling, from Eric Dumazet. 13) get_user_pages_fast() error handling in TUN and MACVTAP use the same local variable for the base index and the loop iterator for page traversal, oops! Fix from Michael S Tsirkin. 14) ipv6_get_lladdr() can fail, and we must therefore check it's return value in inet6_set_iftoken(). For from Hannes Frederic Sowa. 15) If you change an interface name and meanwhile can sneak in something that looks up the name (like SO_BINDTODEVICE or SIOCGIFNAME) we can deadlock with CONFIG_PREEMPT=n. Fix this by providing a helper function that properly uses raw_seqcount_begin(). From Nicolas Schichan. 16) Chain noise calibration test is inverted in iwlwifi, fix from Nikolay Martynov. 17) Properly set TX iwlwifi descriptor flags for back requests. Fix from Emmanuel Grumbach. 18) We can't assume skb_transport_header() is set in xt_TCPOPTSTRAP module, fix from Pablo Neira Ayuso. 19) Some crummy APs don't provide the proper High Throughput info in association response frames. Add a workaround by assume we'll use whatever is in the beacon/probe. Fix from Johannes Berg. 20) mac80211 call to rate_idx_match_mask() swaps two arguments (mask and channel width). Fix from Simon Wunderlich. 21) xt_TCPMSS (like xt_TCPOPTSTRAP) must not try to handle fragmented frames. Fix from Phil Oester. 22) Fix rate control regression causing iwlwifi/iwlegacy chips to use 1Mbit/s on pre-11n networks. From Moshe Benji and Stanslaw Gruszka. 23) Disable brcmsmac power-save functions, they cause regressions. From Arend van Spriel. 24) Enforce a sane minimum MTU in l2cap_build_cmd() otherwise we can easily crash. Fix from Anderson Lizardo. 25) If a learning packet arrives during vxlan_stop() we crash, easily fixed by checking netif_running(). From Stephen Hemminger. 26) Static vxlan FDB entries should not be migrated, also from Stephen. 27) skb_clone() failures not handled in vxlan_xmit(), oops. Also from Stephen. 28) Add minimal driver for AR816x/AR817x ethernet chips, from Johannes Berg. 29) Fix regression in userspace VLAN acceleration control, added by the 802.1ad support changes. Fix from Fernando Luis Vazquez Cao. 30) Interval selection for MLD queries in the bridging code was reversed. Fix from Linus Lüssing. 31) ipv6's ndisc_send_redirect() erroneously writes to the packet we received not the packet we are building to send out. Fix from Matthias Schiffer. 32) Don't free netdev before unregistering it, in usb_8dev can driver. From Marc Kleine-Budde. 33) Fix nl80211 attribute buffer races, from Johannes Berg. 34) Although netlink_diag.h is under uapi/ it isn't present in Kbuild. From Stephen Hemminger. 35) Wrong address and family passed to MD5 key lookups in TCP, from Aydin Arik. 36) phy_type attribute created by SFC driver should not be writable. From Ben Hutchings. 37) Receive/Transmit queue allocations in pxa168_eth and mv643xx_eth should use kzalloc(). Otherwise if setup fails half-way, we'll dereference garbage when trying to teardown the rings. From Lubomir Rintel. 38) Fix double-allocation of dst (resulting in unfreeable net device) in ipv6's init_loopback(). From Gao Feng. 39) Fix fragmentation handling SKB leak in netfilter conntrack, we were freeing the wrong skb pointer. From Phil Oester. 40) Don't report "-1" (SPEED_UNKNOWN) in bond_miimon_commit(), from Nikolay Aleksandrov. 41) davinci_cpdma doesn't check for DMA mapping errors, letting the device scribble to random addresses. From Sebastian Siewior. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits) dlci: validate the net device in dlci_del() dlci: acquire rtnl_lock before calling __dev_get_by_name() af_key: fix info leaks in notify messages ipv6: ip6_sk_dst_check() must not assume ipv6 dst net: fix kernel deadlock with interface rename and netdev name retrieval. net/tg3: Avoid delay during MMIO access ipv6: check return value of ipv6_get_lladdr macvtap: fix recovery from gup errors tun: fix recovery from gup errors gre: fix a possible skb leak ipv6: Process unicast packet with Router Alert by checking flag in skb. ath9k_htc: Handle IDLE state transition properly ath9k: fix an RCU issue in calling ieee80211_get_tx_rates netfilter: ipt_ULOG: fix incorrect setting of ulog timer netfilter: ctnetlink: send event when conntrack label was modified netfilter: nf_nat_sip: fix mangling qlcnic: Do not sleep while holding spinlock drivers: net: cpsw: fix compilation error with cpsw driver tcp: doc : fix the syncookies default value sh_eth: fix misreporting of transmit abort ...
Diffstat (limited to 'Documentation')
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index f98ca633b528..3458d6343e01 100644
@@ -420,10 +420,10 @@ tcp_synack_retries - INTEGER
for a passive TCP connection will happen after 63seconds.
tcp_syncookies - BOOLEAN
- Only valid when the kernel was compiled with CONFIG_SYNCOOKIES
+ Only valid when the kernel was compiled with CONFIG_SYN_COOKIES
Send out syncookies when the syn backlog queue of a socket
overflows. This is to prevent against the common 'SYN flood attack'
- Default: FALSE
+ Default: 1
Note, that syncookies is fallback facility.
It MUST NOT be used to help highly loaded servers to stand