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Without this initialization one gets
kernel BUG at kernel/rtmutex_common.h:80!
This patch should also be included in the -stable kernel.
Signed-off-by: G. Liakhovetski <gl@dsa-ac.de>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[SPARC64]: Get DEBUG_PAGEALLOC working again.
We have to make sure to use base-pagesize TLB entries even during the
early transition period where we need TLB miss handling but don't have
the kernel page tables setup yet for the linear region.
Also, it is necessary therefore to not use the 4MB TSB for these
translations, and instead use the normal kernel TSB. This allows us
to also get rid of the 4MB tsb for debug builds which shrinks the
kernel a little bit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[SPARC64]: Add missing HPAGE_MASK masks on address parameters.
These pte loops all assume the passed in address is HPAGE
aligned, make sure that is actually true.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NET]: Copy mac_len in skb_clone() as well
ANK says: "It is rarely used, that's wy it was not noticed.
But in the places, where it is used, it should be disaster."
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[IPV6]: ipv6_fl_socklist is inadvertently shared.
The ipv6_fl_socklist from listening socket is inadvertently shared
with new socket created for connection. This leads to a variety of
interesting, but fatal, bugs. For example, removing one of the
sockets may lead to the other socket's encountering a page fault
when the now freed list is referenced.
The fix is to not share the flow label list with the new socket.
Signed-off-by: Masayuki Nakagawa <nakagawa.msy@ncos.nec.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[IPV4]: Do not disable preemption in trie_leaf_remove().
Hello, Just discussed this Patrick...
We have two users of trie_leaf_remove, fn_trie_flush and fn_trie_delete
both are holding RTNL. So there shouldn't be need for this preempt stuff.
This is assumed to a leftover from an older RCU-take.
> Mhh .. I think I just remembered something - me incorrectly suggesting
> to add it there while we were talking about this at OLS :) IIRC the
> idea was to make sure tnode_free (which at that time didn't use
> call_rcu) wouldn't free memory while still in use in a rcu read-side
> critical section. It should have been synchronize_rcu of course,
> but with tnode_free using call_rcu it seems to be completely
> unnecessary. So I guess we can simply remove it.
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
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>
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[XFRM]: Fix missing protocol comparison of larval SAs.
I noticed that in xfrm_state_add we look for the larval SA in a few
places without checking for protocol match. So when using both
AH and ESP, whichever one gets added first, deletes the larval SA.
It seems AH always gets added first and ESP is always the larval
SA's protocol since the xfrm->tmpl has it first. Thus causing the
additional km_query()
Adding the check eliminates accidental double SA creation.
Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Initialize the timer with the rest of the private-struct.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When iterating through an array, one must be careful to test one's index
variable rather than another similarly-named variable.
The loop will read off the end of conf->disks[] in the following
(pathological) case:
% dd bs=1 seek=840716287 if=/dev/zero of=d1 count=1
% for i in 2 3 4; do dd if=/dev/zero of=d$i bs=1k count=$(($i+150)); done
% ./vmlinux ubd0=root ubd1=d1 ubd2=d2 ubd3=d3 ubd4=d4
# mdadm -C /dev/md0 --level=linear --raid-devices=4 /dev/ubd[1234]
adding some printks, I saw this:
[42949374.960000] hash_spacing = 821120
[42949374.960000] cnt = 4
[42949374.960000] min_spacing = 801
[42949374.960000] j=0 size=820928 sz=820928
[42949374.960000] i=0 sz=820928 hash_spacing=820928
[42949374.960000] j=1 size=64 sz=64
[42949374.960000] j=2 size=64 sz=128
[42949374.960000] j=3 size=64 sz=192
[42949374.960000] j=4 size=1515870810 sz=1515871002
Cc: Gautham R Shenoy <ego@in.ibm.com>
Acked-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The maximum seconds value we can handle on 32bit is LONG_MAX.
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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hrtimer_forward() does not check for the possible overflow of
timer->expires. This can happen on 64 bit machines with large interval
values and results currently in an endless loop in the softirq because the
expiry value becomes negative and therefor the timer is expired all the
time.
Check for this condition and set the expiry value to the max. expiry time
in the future. The fix should be applied to stable kernel series as well.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Looks like we need a check in nfs_getattr() for a regular file. It makes
no sense to call nfs_sync_mapping_range() on anything else. I think that
should fix your problem: it will stop the NFS client from interfering
with dirty pages on that inode's mapping.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Testing of -rt by IBM uncovered a locking bug in wake_futex_pi(): the PI
state needs to be locked before we access it.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes a bogus lockdep warning which causes lockdep to disable itself.
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as870) adds a delay to ehci-hcd's bus_resume routine.
Apparently there are controllers and/or BIOSes out there which need
such a delay to get the ports back into their correct state. This
fixes Bugzilla #8190.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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madvise(MADV_REMOVE) can go into an infinite loop or cause an oops if the
call covers a region from the start of a vma, and extending past that vma.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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adjust legacy IDE resource setting (v2)
The change to force legacy mode IDE channels' resources to fixed non-zero
values confuses (at least some versions of) X, because the values reported
by the kernel and those readable from PCI config space aren't consistent
anymore. Therefore, this patch arranges for the respective BARs to also
get updated if possible.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[IA64] fix NULL pointer in ia64/irq_chip-mask/unmask function
This patch fixes boot failure because irq_desc->mask() is NULL.
- Added mask/unmask functions to ia64's irq desc function table.
- rename hw_interrupt_type to irq_chip. hw_interrupt_type is old name.
- Tony: Added same change to arch/ia64/sn/kernel/irq.c as pointed out
by Eric Biederman ... mask/unmask functions there can be no-op.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nfnetlink_log: fix reference counting
Fix reference counting (memory leak) problem in __nfulnl_send() and callers
related to packet queueing.
Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The current CIPSO engine has a problem where it does not verify that the given
sensitivity level has a valid CIPSO mapping when the "std" CIPSO DOI type is
used. The end result is that bad packets are sent on the wire which should
have never been sent in the first place. This patch corrects this problem by
verifying the sensitivity level mapping similar to what is done with the
category mapping. This patch also changes the returned error code in this case
to -EPERM to better match what the category mapping verification code returns.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Recent alterations to the gdth_fill_raw_cmd() path no longer set the
sg_ranz field for zero transfer commands. However, this field is used
lower down in the function to initialise ha->cmd_len to the size of
the firmware packet. If this uninitialised field contains a bogus
value, ha->cmd_len can become much larger than the actual firmware
packet and end up oopsing in gdth_copy_cmd() as it tries to copy this
huge packet to the device (usually because it runs into an unallocated
page).
The fix is to initialise the sg_ranz field to zero at the start of
gdth_fill_raw_cmd().
Signed-off-by: Joerg Dorchain <joerg@dorchain.net>
Acked-by: "Achim Leubner" <Achim_Leubner@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[IPV4]: Fix rtm_to_ifaddr() error handling.
Return negative error value (embedded in the pointer) instead of
returning NULL.
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[IPV6]: Fix for ipv6_setsockopt NULL dereference
I came across this bug in http://bugzilla.kernel.org/show_bug.cgi?id=8155
Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[UDP]: Reread uh pointer after pskb_trim
The header may have moved when trimming.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[INET]: twcal_jiffie should be unsigned long, not int
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>
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[SPARC]: Fix bus handling in build_device_resources().
We mistakedly modify 'bus' in the innermost loop. What
should happen is that at each register index iteration,
we start with the same 'bus'.
So preserve it's value at the top level, and use a loop
local variable 'dbus' for iteration.
This bug causes registers other than the first to be
decoded improperly.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[CONNECTOR]: Bugfix for cn_call_callback()
When system under heavy stress and must allocate new work
instead of reusing old one, new work must use correct
completion callback.
Patch is based on Philipp's and Lars' work.
I only cleaned small stuff (and removed spaces instead of tabs).
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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At least the Keyspan USA-19HS USB-to-serial converter supports
two different configurations, one where the input endpoints
have interrupt transfer type and one where they are bulk endpoints.
The default UHCI configuration uses the interrupt input endpoints.
The keyspan driver, OTOH, assumes that the device has only bulk
endpoints (all URBs are initialized by calling usb_fill_bulk_urb
in keyspan.c/ keyspan_setup_urb). This causes the interval field
of the input URBs to have a value of zero instead of one, which
'accidentally' worked with Linux at least up to 2.6.17.11 but
stopped to with 2.6.18, which changed the UHCI support code handling
URBs for interrupt endpoints. The patch below modifies to driver to
initialize its input URBs either as interrupt or as bulk URBs,
depending on the transfertype contained in the associated endpoint
descriptor (only tested with the default configuration) enabling
the driver to again receive data from the serial converter.
Greg K-H reworked the patch.
Signed-off-by: Rainer Weikusat <rweikusat@sncag.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NET]: Fix compat_sock_common_getsockopt typo.
This patch fixes a typo in compat_sock_common_getsockopt.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Some versions of the bcm43xx chips only support 30-bit DMA, which means
that the descriptors and buffers must be in the first 1 GB of RAM. On
the i386 and x86_64 architectures with more than 1 GB RAM, an incorrect
assignment may occur. This patch ensures that the various DMA addresses
are within the capability of the chip. Testing has been limited to x86_64
as no one has an i386 system with more than 1 GB RAM.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- addresses the reported bug (with GFP_KERNEL -> GFP_ATOMIC)
- improves error checking, and
- is a subset of the changes to scsi_debug in lk 2.6.21-rc*
Compiled and lightly tested (in lk 2.6.21-rc2 environment).
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nfnetlink_log: fix crash on bridged packet
physoutdev is only set on purely bridged packet, when nfnetlink_log is used
in the OUTPUT/FORWARD/POSTROUTING hooks on packets forwarded from or to a
bridge it crashes when trying to dereference skb->nf_bridge->physoutdev.
Reported by Holger Eitzenberger <heitzenberger@astaro.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nfnetlink_log: zero-terminate prefix
Userspace expects a zero-terminated string, so include the trailing
zero in the netlink message.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nf_conntrack: fix incorrect classification of IPv6 fragments as ESTABLISHED
The individual fragments of a packet reassembled by conntrack have the
conntrack reference from the reassembled packet attached, but nfctinfo
is not copied. This leaves it initialized to 0, which unfortunately is
the value of IP_CT_ESTABLISHED.
The result is that all IPv6 fragments are tracked as ESTABLISHED,
allowing them to bypass a usual ruleset which accepts ESTABLISHED
packets early.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: ip6_route_me_harder should take into account mark
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nfnetlink_log: fix possible NULL pointer dereference
Eliminate possible NULL pointer dereference in nfulnl_recv_config().
Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nfnetlink_log: fix NULL pointer dereference
Fix the nasty NULL dereference on multiple packets per netlink message.
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000004
printing eip:
f8a4b3bf
*pde = 00000000
Oops: 0002 [#1]
SMP
Modules linked in: nfnetlink_log ipt_ttl ipt_REDIRECT xt_tcpudp iptable_nat nf_nat nf_conntrack
_ipv4 xt_state ipt_ipp2p xt_NFLOG xt_hashlimit ip6_tables iptable_filter xt_multiport xt_mark i
pt_set iptable_raw xt_MARK iptable_mangle ip_tables cls_fw cls_u32 sch_esfq sch_htb ip_set_ipma
p ip_set ipt_ULOG x_tables dm_snapshot dm_mirror loop e1000 parport_pc parport e100 floppy ide_
cd cdrom
CPU: 0
EIP: 0060:[<f8a4b3bf>] Not tainted VLI
EFLAGS: 00010206 (2.6.20 #5)
EIP is at __nfulnl_send+0x24/0x51 [nfnetlink_log]
eax: 00000000 ebx: f2b5cbc0 ecx: c03f5f54 edx: c03f4000
esi: f2b5cbc8 edi: c03f5f54 ebp: f8a4b3ec esp: c03f5f30
ds: 007b es: 007b ss: 0068
Process swapper (pid: 0, ti=c03f4000 task=c03bece0 task.ti=c03f4000)
Stack: f2b5cbc0 f8a4b401 00000100 c0444080 c012af49 00000000 f6f19100 f6f19000
c1707800 c03f5f54 c03f5f54 00000123 00000021 c03e8d08 c0426380 00000009
c0126932 00000000 00000046 c03e9980 c03e6000 0047b007 c01269bd 00000000
Call Trace:
[<f8a4b401>] nfulnl_timer+0x15/0x25 [nfnetlink_log]
[<c012af49>] run_timer_softirq+0x10a/0x164
[<c0126932>] __do_softirq+0x60/0xba
[<c01269bd>] do_softirq+0x31/0x35
[<c0104f6e>] do_IRQ+0x62/0x74
[<c01036cb>] common_interrupt+0x23/0x28
[<c0101018>] default_idle+0x0/0x3f
[<c0101045>] default_idle+0x2d/0x3f
[<c01010fa>] cpu_idle+0xa0/0xb9
[<c03fb7f5>] start_kernel+0x1a8/0x1ac
[<c03fb293>] unknown_bootoption+0x0/0x181
=======================
Code: 5e 5f 5b 5e 5f 5d c3 53 89 c3 8d 40 1c 83 7b 1c 00 74 05 e8 2c ee 6d c7 83 7b 14 00 75 04
31 c0 eb 34 83 7b 10 01 76 09 8b 43 18 <66> c7 40 04 03 00 8b 53 34 8b 43 14 b9 40 00 00 00 e8
08 9a 84
EIP: [<f8a4b3bf>] __nfulnl_send+0x24/0x51 [nfnetlink_log] SS:ESP 0068:c03f5f30
<0>Kernel panic - not syncing: Fatal exception in interrupt
<0>Rebooting in 5 seconds..
Panic no more!
Signed-off-by: Micha Mirosaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nfnetlink_log: fix use after free
Paranoia: instance_put() might have freed the inst pointer when we
spin_unlock_bh().
Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: nfnetlink_log: fix reference leak
Stop reference leaking in nfulnl_log_packet(). If we start a timer we
are already taking another reference.
Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: tcp conntrack: accept SYN|URG as valid
Some stacks apparently send packets with SYN|URG set. Linux accepts
these packets, so TCP conntrack should to.
Pointed out by Martijn Posthuma <posthuma@sangine.com>.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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[NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs
The nf_conntrack_netlink config option is named CONFIG_NF_CT_NETLINK,
but multiple files use CONFIG_IP_NF_CONNTRACK_NETLINK or
CONFIG_NF_CONNTRACK_NETLINK for ifdefs.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[NETFILTER]: conntrack: fix {nf,ip}_ct_iterate_cleanup endless loops
Fix {nf,ip}_ct_iterate_cleanup unconfirmed list handling:
- unconfirmed entries can not be killed manually, they are removed on
confirmation or final destruction of the conntrack entry, which means
we might iterate forever without making forward progress.
This can happen in combination with the conntrack event cache, which
holds a reference to the conntrack entry, which is only released when
the packet makes it all the way through the stack or a different
packet is handled.
- taking references to an unconfirmed entry and using it outside the
locked section doesn't work, the list entries are not refcounted and
another CPU might already be waiting to destroy the entry
What the code really wants to do is make sure the references of the hash
table to the selected conntrack entries are released, so they will be
destroyed once all references from skbs and the event cache are dropped.
Since unconfirmed entries haven't even entered the hash yet, simply mark
them as dying and skip confirmation based on that.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes http://bugzilla.kernel.org/show_bug.cgi?id=8134
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
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Occasionally the kernel has bugs that result in no irq being found for a
given cpu vector. If we acknowledge the irq the system has a good chance
of continuing even though we dropped an irq message. If we continue to
simply print a message and not acknowledge the irq the system is likely to
become non-responsive shortly there after.
AK: Fixed compilation for UP kernels
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: "Luigi Genoni" <luigi.genoni@pirelli.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
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Based on a patch from Don Howard <dhoward@redhat.com>
When calling write() with a buffer larger than 512 bytes, the
driver's write buffer overflows, allowing to overwrite the EIP and
execute arbitrary code with kernel privileges.
In read(), there exists a similar problem, but coming from the device.
A malicous or buggy device sending more than 512 bytes can overflow
of the driver's read buffer, with the same effects as above.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
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On 2/28/07, KOVACS Krisztian <hidden@balabit.hu> wrote:
>
> Hi,
>
> While reading TCP minisock code I've found this suspiciously looking
> code fragment:
>
> - 8< -
> struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, struct sk_buff *skb)
> {
> struct sock *newsk = inet_csk_clone(sk, req, GFP_ATOMIC);
>
> if (newsk != NULL) {
> const struct inet_request_sock *ireq = inet_rsk(req);
> struct tcp_request_sock *treq = tcp_rsk(req);
> struct inet_connection_sock *newicsk = inet_csk(sk);
> struct tcp_sock *newtp;
> - 8< -
>
> The above code initializes newicsk to inet_csk(sk), isn't that supposed
> to be inet_csk(newsk)? As far as I can tell this might leave
> icsk_ack.last_seg_size zero even if we do have received data.
Good catch!
David, please apply the attached patch.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
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Fix a locking mistake in the quota code, we do a mutex_lock instead of a
mutex_unlock.
Signed-off-by: Josef Whiter <jwhiter@redhat.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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If an ATA drive uses legacy mode, ata driver will choose 14 and 15 as the
fixed irq number. On ia64 platform, such numbers are GSI and should be
converted to irq vector.
Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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