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2009-06-15mac80211: avoid NULL ptr deref when finding max_rates in PID and minstrelJohn W. Linville
commit 621ad7c96aa138cfeab53cd4debc5a4e08b2189b upstream. "There is another problem with this piece of code. The sband will be NULL after second iteration on single band device and cause null pointer dereference. Everything is working with dual band card. Sorry, but i don't know how to explain this clearly in English. I have looked on the second patch for pid algorithm and found similar bug." Reported-by: Karol Szuster <qflon@o2.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15mac80211: pid, fix memory corruptionJiri Slaby
commit 6909268dc93ae4b0b8e1ebb4b2fa70b1a47dd347 upstream. pid doesn't count with some band having more bitrates than the one associated the first time. Fix that by counting the maximal available bitrate count and allocate big enough space. Secondly, fix touching uninitialized memory which causes panics. Index sucked from this random memory points to the hell. The fix is to sort the rates on each band change. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15mac80211: minstrel, fix memory corruptionJiri Slaby
commit 8e532175277d9a5eae49768ed086555081f741a7 upstream. minstrel doesn't count max rate count in fact, since it doesn't use a loop variable `i' and hence allocs space only for bitrates found in the first band. Fix it by involving the `i' as an index so that it traverses all the bands now and finds the real max bitrate count. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15cfg80211: fix race between core hint and driver's custom applyLuis R. Rodriguez
commit 5078b2e32ad4b1f753b1c837c15892202f753c97 upstream. Its possible for cfg80211 to have scheduled the work and for the global workqueue to not have kicked in prior to a cfg80211 driver's regulatory hint or wiphy_apply_custom_regulatory(). Although this is very unlikely its possible and should fix this race. When this race would happen you are expected to have hit a null pointer dereference panic. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15wimax: fix oops if netlink fails to add attributeInaky Perez-Gonzalez
commit d1a2627a29667fe7c4a9d06e1579a2d65bd39bba upstream. When sending a message to user space using wimax_msg(), if nla_put() fails, correctly interpret the return code from wimax_msg_alloc() as an err ptr and return the error code instead of crashing (as it is assuming than non-NULL means the pointer is ok). Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15vlan/macvlan: fix NULL pointer dereferences in ethtool handlersPatrick McHardy
[ Upstream commit 7816a0a862d851d0b05710e7d94bfe390f3180e2 ] Check whether the underlying device provides a set of ethtool ops before checking for individual handlers to avoid NULL pointer dereferences. Reported-by: Art van Breemen <ard@telegraafnet.nl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15pktgen: do not access flows[] beyond its lengthFlorian Westphal
[ Upstream commit 5b5f792a6a9a2f9ae812d151ed621f72e99b1725 ] typo -- pkt_dev->nflows is for stats only, the number of concurrent flows is stored in cflows. Reported-By: Vladimir Ivashchenko <hazard@francoudi.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15Revert "rose: zero length frame filtering in af_rose.c"David S. Miller
[ Upstream commit 6fd4777a1fec1f7757b5a302ad3fdcc1eae2abba ] This reverts commit 244f46ae6e9e18f6fc0be7d1f49febde4762c34b. Alan Cox did the research, and just like the other radio protocols zero-length frames have meaning because at the top level ROSE is X.25 PLP. So this zero-length filtering is invalid. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15net: fix rtable leak in net/ipv4/route.cEric Dumazet
[ Upstream commit 1ddbcb005c395518c2cd0df504cff3d4b5c85853 ] Alexander V. Lukyanov found a regression in 2.6.29 and made a complete analysis found in http://bugzilla.kernel.org/show_bug.cgi?id=13339 Quoted here because its a perfect one : begin_of_quotation 2.6.29 patch has introduced flexible route cache rebuilding. Unfortunately the patch has at least one critical flaw, and another problem. rt_intern_hash calculates rthi pointer, which is later used for new entry insertion. The same loop calculates cand pointer which is used to clean the list. If the pointers are the same, rtable leak occurs, as first the cand is removed then the new entry is appended to it. This leak leads to unregister_netdevice problem (usage count > 0). Another problem of the patch is that it tries to insert the entries in certain order, to facilitate counting of entries distinct by all but QoS parameters. Unfortunately, referencing an existing rtable entry moves it to list beginning, to speed up further lookups, so the carefully built order is destroyed. For the first problem the simplest patch it to set rthi=0 when rthi==cand, but it will also destroy the ordering. end_of_quotation Problematic commit is 1080d709fb9d8cd4392f93476ee46a9d6ea05a5b (net: implement emergency route cache rebulds when gc_elasticity is exceeded) Trying to keep dst_entries ordered is too complex and breaks the fact that order should depend on the frequency of use for garbage collection. A possible fix is to make rt_intern_hash() simpler, and only makes rt_check_expire() a litle bit smarter, being able to cope with an arbitrary entries order. The added loop is running on cache hot data, while cpu is prefetching next object, so should be unnoticied. Reported-and-analyzed-by: Alexander V. Lukyanov <lav@yar.ru> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15net: fix length computation in rt_check_expire()Eric Dumazet
[ Upstream commit cf8da764fc6959b7efb482f375dfef9830e98205 ] rt_check_expire() computes average and standard deviation of chain lengths, but not correclty reset length to 0 at beginning of each chain. This probably gives overflows for sum2 (and sum) on loaded machines instead of meaningful results. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15sch_teql: should not dereference skb after ndo_start_xmit()Eric Dumazet
[ Upstream commit c0f84d0d4be3f7d818b4ffb04d27f9bae64397f0 ] It is illegal to dereference a skb after a successful ndo_start_xmit() call. We must store skb length in a local variable instead. Bug was introduced in 2.6.27 by commit 0abf77e55a2459aa9905be4b226e4729d5b4f0cb (net_sched: Add accessor function for packet length for qdiscs) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15net: fix skb_seq_read returning wrong offset/length for page frag dataThomas Chenault
[ Upstream commit 995b337952cdf7e05d288eede580257b632a8343 ] When called with a consumed value that is less than skb_headlen(skb) bytes into a page frag, skb_seq_read() incorrectly returns an offset/length relative to skb->data. Ensure that data which should come from a page frag does. Signed-off-by: Thomas Chenault <thomas_chenault@dell.com> Tested-by: Shyam Iyer <shyam_iyer@dell.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15tcp: fix >2 iw selectionIlpo Jarvinen
[ Upstream commit 86bcebafc5e7f5163ccf828792fe694b112ed6fa ] A long-standing feature in tcp_init_metrics() is such that any of its goto reset prevents call to tcp_init_cwnd(). Signed-off-by: Ilpo Jarvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15tcp: fix MSG_PEEK race checkIlpo Jarvinen
[ Upstream commit 775273131810caa41dfc7f9e552ea5d8508caf40 ] Commit 518a09ef11 (tcp: Fix recvmsg MSG_PEEK influence of blocking behavior) lets the loop run longer than the race check did previously expect, so we need to be more careful with this check and consider the work we have been doing. I tried my best to deal with urg hole madness too which happens here: if (!sock_flag(sk, SOCK_URGINLINE)) { ++*seq; ... by using additional offset by one but I certainly have very little interest in testing that part. Signed-off-by: Ilpo Jarvinen <ilpo.jarvinen@helsinki.fi> Tested-by: Frans Pop <elendil@planet.nl> Tested-by: Ian Zimmermann <itz@buug.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15xfrm: wrong hash value for temporary SANicolas Dichtel
[ Upstream commit 6a783c9067e3f71aac61a9262fe42c1f68efd4fc ] When kernel inserts a temporary SA for IKE, it uses the wrong hash value for dst list. Two hash values were calcultated before: one with source address and one with a wildcard source address. Bug hinted by Junwei Zhang <junwei.zhang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-05-18netlabel: Add new NetLabel KAPI interfaces for request_sock security attributesPaul Moore
[NOTE: based on 389fb800ac8be2832efedd19978a2b8ced37eb61 and 07feee8f812f7327a46186f7604df312c8c81962] This patch adds the netlbl_req_setattr() and netlbl_req_delattr() functions which can be used by LSMs to set and remove the NetLabel security attributes from request_sock objects used in incoming connection requests. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-05-18netlabel: Add CIPSO {set, del}attr request_sock functionsPaul Moore
[NOTE: based on 389fb800ac8be2832efedd19978a2b8ced37eb61] Add the cipso_v4_req_setattr() and cipso_v4_req_delattr() functions to set and delete the CIPSO security attributes on a request_sock used during a incoming connection request. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-05-18lsm: Relocate the IPv4 security_inet_conn_request() hooksPaul Moore
[NOTE: present in Linus' tree as 284904aa79466a4736f4c775fdbe5c7407fa136c] The current placement of the security_inet_conn_request() hooks do not allow individual LSMs to override the IP options of the connection's request_sock. This is a problem as both SELinux and Smack have the ability to use labeled networking protocols which make use of IP options to carry security attributes and the inability to set the IP options at the start of the TCP handshake is problematic. This patch moves the IPv4 security_inet_conn_request() hooks past the code where the request_sock's IP options are set/reset so that the LSM can safely manipulate the IP options as needed. This patch intentionally does not change the related IPv6 hooks as IPv6 based labeling protocols which use IPv6 options are not currently implemented, once they are we will have a better idea of the correct placement for the IPv6 hooks. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-05-08mac80211: fix basic rate bitmap calculationJohannes Berg
upstream commit: 7e0986c17f695952ce5d61ed793ce048ba90a661 "mac80211: fix basic rates setting from association response" introduced a copy/paste error. Unfortunately, this not just leads to wrong data being passed to the driver but is remotely exploitable for some hardware or driver combinations. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-05-08mac80211: Fix bug in getting rx status for frames pending in reorder bufferVasanthakumar Thiagarajan
upstream commit: b3631286aca3f54427ca0eb950981e9753866f6c Currently rx status for frames which are completed from reorder buffer is taken from it's cb area which is not always right, cb is not holding the rx status when driver uses mac80211's non-irq rx handler to pass it's received frames. This results in dropping almost all frames from reorder buffer when security is enabled by doing double decryption (first in hw, second in sw because of wrong rx status). This patch copies rx status into cb area before the frame is put into reorder buffer. After this patch, there is a significant improvement in throughput with ath9k + WPA2(AES). Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-27gso: Fix support for linear packetsHerbert Xu
upstream commit: 2f181855a0b3c2b39314944add7b41c15647cf86 When GRO/frag_list support was added to GSO, I made an error which broke the support for segmenting linear GSO packets (GSO packets are normally non-linear in the payload). These days most of these packets are constructed by the tun driver, which prefers to allocate linear memory if possible. This is fixed in the latest kernel, but for 2.6.29 and earlier it is still the norm. Therefore this bug causes failures with GSO when used with tun in 2.6.29. Reported-by: James Huang <jamesclhuang@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-27netfilter: {ip, ip6, arp}_tables: fix incorrect loop detectionPatrick McHardy
upstream commit: 1f9352ae2253a97b07b34dcf16ffa3b4ca12c558 Commit e1b4b9f ([NETFILTER]: {ip,ip6,arp}_tables: fix exponential worst-case search for loops) introduced a regression in the loop detection algorithm, causing sporadic incorrectly detected loops. When a chain has already been visited during the check, it is treated as having a standard target containing a RETURN verdict directly at the beginning in order to not check it again. The real target of the first rule is then incorrectly treated as STANDARD target and checked not to contain invalid verdicts. Fix by making sure the rule does actually contain a standard target. Based on patch by Francis Dupont <Francis_Dupont@isc.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-27net/netrom: Fix socket lockingJean Delvare
upstream commit: cc29c70dd581f85ee7a3e7980fb031f90b90a2ab Patch "af_rose/x25: Sanity check the maximum user frame size" (commit 83e0bbcbe2145f160fbaa109b0439dae7f4a38a9) from Alan Cox got locking wrong. If we bail out due to user frame size being too large, we must unlock the socket beforehand. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-27af_rose/x25: Sanity check the maximum user frame sizeAlan Cox
upstream commit: 83e0bbcbe2145f160fbaa109b0439dae7f4a38a9 CVE-2009-0795. Otherwise we can wrap the sizes and end up sending garbage. Closes #10423 Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-02cfg80211: fix incorrect assumption on last_request for 11dLuis R. Rodriguez
upstream commit: cc0b6fe88e99096868bdbacbf486c97299533b5a The incorrect assumption is the last regulatory request (last_request) is always a country IE when processing country IEs. Although this is true 99% of the time the first time this happens this could not be true. This fixes an oops in the branch check for the last_request when accessing drv_last_ie. The access was done under the assumption the struct won't be null. Note to stable: to port to 29 replace as follows, only 29 has country IE code: s|NL80211_REGDOM_SET_BY_COUNTRY_IE|REGDOM_SET_BY_COUNTRY_IE Cc: stable@kernel.org Reported-by: Quentin Armitage <Quentin@armitage.org.uk> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> [chrisw: backport to 2.6.29] Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-02cfg80211: force last_request to be set for OLD_REG if regdom is EULuis R. Rodriguez
upstream commit: 2e097dc65673ed421bbc2e49f52c125aa43a8ee6 Although EU is a bogus alpha2 we need to process the send request as our code depends on last_request being set. Cc: stable@kernel.org Reported-by: Quentin Armitage <Quentin@armitage.org.uk> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> [chrisw: backport to 2.6.29] Signed-off-by: Chris Wright <chrisw@sous-sol.org> Port-acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
2009-04-02xfrm: spin_lock() should be spin_unlock() in xfrm_state.cChuck Ebbert
[ Upstream commit 7d0b591c655ca0d72ebcbd242cf659a20a8995c5 ] spin_lock() should be spin_unlock() in xfrm_state_walk_done(). caused by: commit 12a169e7d8f4b1c95252d8b04ed0f1033ed7cfe2 "ipsec: Put dumpers on the dump list" Reported-by: Marc Milgram <mmilgram@redhat.com> Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-02ipv6: Plug sk_buff leak in ipv6_rcv (net/ipv6/ip6_input.c)Jesper Nilsson
[ Upstream commit 71f6f6dfdf7c7a67462386d9ea05c1095a89c555 ] Commit 778d80be52699596bf70e0eb0761cf5e1e46088d (ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface) seems to have introduced a leak of sk_buff's for ipv6 traffic, at least in some configurations where idev is NULL, or when ipv6 is disabled via sysctl. The problem is that if the first condition of the if-statement returns non-NULL, it returns an skb with only one reference, and when the other conditions apply, execution jumps to the "out" label, which does not call kfree_skb for it. To plug this leak, change to use the "drop" label instead. (this relies on it being ok to call kfree_skb on NULL) This also allows us to avoid calling rcu_read_unlock here, and removes the only user of the "out" label. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-02GRO: Disable GRO on legacy netif_rx pathHerbert Xu
[ Upstream commit 8f1ead2d1a626ed0c85b3d2c2046a49081d5933f ] When I fixed the GRO crash in the legacy receive path I used napi_complete to replace __napi_complete. Unfortunately they're not the same when NETPOLL is enabled, which may result in us not calling __napi_complete at all. What's more, we really do need to keep the __napi_complete call within the IRQ-off section since in theory an IRQ can occur in between and fill up the backlog to the maximum, causing us to lock up. Since we can't seem to find a fix that works properly right now, this patch reverts all the GRO support from the netif_rx path. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-02bridge: bad error handling when adding invalid ether addressStephen Hemminger
[ Upstream commit cda6d377ec6b2ee2e58d563d0bd7eb313e0165df ] This fixes an crash when empty bond device is added to a bridge. If an interface with invalid ethernet address (all zero) is added to a bridge, then bridge code detects it when setting up the forward databas entry. But the error unwind is broken, the bridge port object can get freed twice: once when ref count went to zeo, and once by kfree. Since object is never really accessible, just free it. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-02udp: Wrong locking code in udp seq_file infrastructureVitaly Mayatskikh
[ Upstream commit 30842f2989aacfaba3ccb39829b3417be9313dbe ] Reading zero bytes from /proc/net/udp or other similar files which use the same seq_file udp infrastructure panics kernel in that way: ===================================== [ BUG: bad unlock balance detected! ] ------------------------------------- read/1985 is trying to release lock (&table->hash[i].lock) at: [<ffffffff81321d83>] udp_seq_stop+0x27/0x29 but there are no more locks to release! other info that might help us debug this: 1 lock held by read/1985: #0: (&p->lock){--..}, at: [<ffffffff810eefb6>] seq_read+0x38/0x348 stack backtrace: Pid: 1985, comm: read Not tainted 2.6.29-rc8 #9 Call Trace: [<ffffffff81321d83>] ? udp_seq_stop+0x27/0x29 [<ffffffff8106dab9>] print_unlock_inbalance_bug+0xd6/0xe1 [<ffffffff8106db62>] lock_release_non_nested+0x9e/0x1c6 [<ffffffff810ef030>] ? seq_read+0xb2/0x348 [<ffffffff8106bdba>] ? mark_held_locks+0x68/0x86 [<ffffffff81321d83>] ? udp_seq_stop+0x27/0x29 [<ffffffff8106dde7>] lock_release+0x15d/0x189 [<ffffffff8137163c>] _spin_unlock_bh+0x1e/0x34 [<ffffffff81321d83>] udp_seq_stop+0x27/0x29 [<ffffffff810ef239>] seq_read+0x2bb/0x348 [<ffffffff810eef7e>] ? seq_read+0x0/0x348 [<ffffffff8111aedd>] proc_reg_read+0x90/0xaf [<ffffffff810d878f>] vfs_read+0xa6/0x103 [<ffffffff8106bfac>] ? trace_hardirqs_on_caller+0x12f/0x153 [<ffffffff810d88a2>] sys_read+0x45/0x69 [<ffffffff8101123a>] system_call_fastpath+0x16/0x1b BUG: scheduling while atomic: read/1985/0xffffff00 INFO: lockdep is turned off. Modules linked in: cpufreq_ondemand acpi_cpufreq freq_table dm_multipath kvm ppdev snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi_event arc4 snd_s eq ecb thinkpad_acpi snd_seq_device iwl3945 hwmon sdhci_pci snd_pcm_oss sdhci rfkill mmc_core snd_mixer_oss i2c_i801 mac80211 yenta_socket ricoh_mmc i2c_core iTCO_wdt snd_pcm iTCO_vendor_support rs rc_nonstatic snd_timer snd lib80211 cfg80211 soundcore snd_page_alloc video parport_pc output parport e1000e [last unloaded: scsi_wait_scan] Pid: 1985, comm: read Not tainted 2.6.29-rc8 #9 Call Trace: [<ffffffff8106b456>] ? __debug_show_held_locks+0x1b/0x24 [<ffffffff81043660>] __schedule_bug+0x7e/0x83 [<ffffffff8136ede9>] schedule+0xce/0x838 [<ffffffff810d7972>] ? fsnotify_access+0x5f/0x67 [<ffffffff810112d0>] ? sysret_careful+0xb/0x37 [<ffffffff8106be9c>] ? trace_hardirqs_on_caller+0x1f/0x153 [<ffffffff8137127b>] ? trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff810112f6>] sysret_careful+0x31/0x37 read[1985]: segfault at 7fffc479bfe8 ip 0000003e7420a180 sp 00007fffc479bfa0 error 6 Kernel panic - not syncing: Aiee, killing interrupt handler! udp_seq_stop() tries to unlock not yet locked spinlock. The lock was lost during splitting global udp_hash_lock to subsequent spinlocks. Signed-off by: Vitaly Mayatskikh <v.mayatskih@gmail.com> Acked-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-04-02netfilter: nf_conntrack_tcp: fix unaligned memory access in tcp_sackMark H. Weaver
[ Upstream commit 534f81a5068799799e264fd162e9488a129f98d4 ] This patch fixes an unaligned memory access in tcp_sack while reading sequence numbers from TCP selective acknowledgement options. Prior to applying this patch, upstream linux-2.6.27.20 was occasionally generating messages like this on my sparc64 system: [54678.532071] Kernel unaligned access at TPC[6b17d4] tcp_packet+0xcd4/0xd00 Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2009-03-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits) ucc_geth: Fix oops when using fixed-link support dm9000: locking bugfix net: update dnet.c for bus_id removal dnet: DNET should depend on HAS_IOMEM dca: add missing copyright/license headers nl80211: Check that function pointer != NULL before using it sungem: missing net_device_ops be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycle be2net: replenish when posting to rx-queue is starved in out of mem conditions bas_gigaset: correctly allocate USB interrupt transfer buffer smsc911x: reset last known duplex and carrier on open sh_eth: Fix mistake of the address of SH7763 sh_eth: Change handling of IRQ netns: oops in ip[6]_frag_reasm incrementing stats net: kfree(napi->skb) => kfree_skb net: fix sctp breakage ipv6: fix display of local and remote sit endpoints net: Document /proc/sys/net/core/netdev_budget tulip: fix crash on iface up with shirq debug virtio_net: Make virtio_net support carrier detection ...
2009-03-20nl80211: Check that function pointer != NULL before using itJouni Malinen
NL80211_CMD_GET_MESH_PARAMS and NL80211_CMD_SET_MESH_PARAMS handlers did not verify whether a function pointer is NULL (not supported by the driver) before trying to call the function. The former nl80211 command is available for unprivileged users, too, so this can potentially allow normal users to kill networking (or worse..) if mac80211 is built without CONFIG_MAC80211_MESH=y. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-18netns: oops in ip[6]_frag_reasm incrementing statsJorge Boncompte [DTI2]
dev can be NULL in ip[6]_frag_reasm for skb's coming from RAW sockets. Quagga's OSPFD sends fragmented packets on a RAW socket, when netfilter conntrack reassembles them on the OUTPUT path you hit this code path. You can test it with something like "hping2 -0 -d 2000 -f AA.BB.CC.DD" With help from Jarek Poplawski. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18net: kfree(napi->skb) => kfree_skbRoel Kluin
struct sk_buff pointers should be freed with kfree_skb. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18net: fix sctp breakageAl Viro
broken by commit 5e739d1752aca4e8f3e794d431503bfca3162df4; AFAICS should be -stable fodder as well... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Aced-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18ipv6: fix display of local and remote sit endpointsBjørn Mork
This fixes the regressions cause by commit 1326c3d5a4b792a2b15877feb7fb691f8945d203 (v2.6.28-rc6-461-g23a12b1) broke the display of local and remote addresses of an SIT tunnel in iproute2. nt->parms is used by ipip6_tunnel_init() and therefore need to be initialized first. Tracked as http://bugzilla.kernel.org/show_bug.cgi?id=12868 Reported-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-17Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2009-03-17Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2009-03-17gro: Fix legacy path napi_complete crashHerbert Xu
On the legacy netif_rx path, I incorrectly tried to optimise the napi_complete call by using __napi_complete before we reenable IRQs. This simply doesn't work since we need to flush the held GRO packets first. This patch fixes it by doing the obvious thing of reenabling IRQs first and then calling napi_complete. Reported-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-16mac80211: Fix panic on fragmentation with power savingJouni Malinen
It was possible to hit a kernel panic on NULL pointer dereference in dev_queue_xmit() when sending power save buffered frames to a STA that woke up from sleep. This happened when the buffered frame was requeued for transmission in ap_sta_ps_end(). In order to avoid the panic, copy the skb->dev and skb->iif values from the first fragment to all other fragments. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-16lib80211: silence excessive crypto debugging messagesJohn W. Linville
When they were part of the now defunct ieee80211 component, these messages were only visible when special debugging settings were enabled. Let's mirror that with a new lib80211 debugging Kconfig option. Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits) r8169: revert "r8169: read MAC address from EEPROM on init (2nd attempt)" r8169: use hardware auto-padding. igb: remove ASPM L0s workaround netxen: remove old flash check. mv643xx_eth: fix unicast address filter corruption on mtu change xfrm: Fix xfrm_state_find() wrt. wildcard source address. emac: Fix clock control for 405EX and 405EXr chips ixgbe: fix multiple unicast address support via-velocity: Fix DMA mapping length errors on transmit. qlge: bugfix: Pad outbound frames smaller than 60 bytes. qlge: bugfix: Move netif_napi_del() to common call point. qlge: bugfix: Tell hw to strip vlan header. qlge: bugfix: Increase filter on inbound csum. dnet: replace obsolete *netif_rx_* functions with *napi_* net: Add be2net driver. dnet: Fix warnings on 64-bit. dnet: Dave DNET ethernet controller driver (updated) ipv6: Fix BUG when disabled ipv6 module is unloaded bnx2x: Using DMAE to initialize the chip bnx2x: Casting page alignment ...
2009-03-16netfilter: conntrack: check for NEXTHDR_NONE before header sanity checkingChristoph Paasch
NEXTHDR_NONE doesn't has an IPv6 option header, so the first check for the length will always fail and results in a confusing message "too short" if debugging enabled. With this patch, we check for NEXTHDR_NONE before length sanity checkings are done. Signed-off-by: Christoph Paasch <christoph.paasch@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-03-16netfilter: conntrack: fix dropping packet after l4proto->packet()Christoph Paasch
We currently use the negative value in the conntrack code to encode the packet verdict in the error. As NF_DROP is equal to 0, inverting NF_DROP makes no sense and, as a result, no packets are ever dropped. Signed-off-by: Christoph Paasch <christoph.paasch@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-03-16netfilter: ctnetlink: fix crash during expectation creationPablo Neira Ayuso
This patch fixes a possible crash due to the missing initialization of the expectation class when nf_ct_expect_related() is called. Reported-by: BORBELY Zoltan <bozo@andrews.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-03-13xfrm: Fix xfrm_state_find() wrt. wildcard source address.David S. Miller
The change to make xfrm_state objects hash on source address broke the case where such source addresses are wildcarded. Fix this by doing a two phase lookup, first with fully specified source address, next using saddr wildcarded. Reported-by: Nicolas Dichtel <nicolas.dichtel@dev.6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-11SUNRPC: xprt_connect() don't abort the task if the transport isn't boundTrond Myklebust
If the transport isn't bound, then we should just return ENOTCONN, letting call_connect_status() and/or call_status() deal with retrying. Currently, we appear to abort all pending tasks with an EIO error. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-03-11SUNRPC: Fix an Oops due to socket not set up yet...Trond Myklebust
We can Oops in both xs_udp_send_request() and xs_tcp_send_request() if the call to xs_sendpages() returns an error due to the socket not yet being set up. Deal with that situation by returning a new error: ENOTSOCK, so that we know to avoid dereferencing transport->sock. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>