| Commit message (Collapse) | Author | Age | Files | Lines |
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In preparation for restoring CFP rules during system wide system
suspend/resume where the hardware loses its context, split the rule
validation from its actual insertion as well as the rule removal from
its actual hardware deletion operation.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We tried hard to use the hardware as a storage area, which made things
needlessly complex in that we had to both marshall and unmarshall the
ethtool_rx_flow_spec into what the CFP hardware understands but it did
not require any driver level allocations, so that was nice.
Keep a copy of the ethtool_rx_flow_spec rule we want to insert, and also
make sure we don't have a duplicate rule already. This greatly speeds up
the deletion time since we only need to clear the slice's valid bit and
not perform a full read.
This is a preparatory step for being able to restore rules upon system
resumption where the hardware loses its context partially or entirely.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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David Ahern says:
====================
net: More extack messages
Add more extack messages for several link create errors (e.g., invalid
number of queues, unknown link kind) and invalid metrics argument.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add extack arg to the nla_parse_nested calls in rtnl_newlink, and
add messages for unknown device type and link network namespace id.
In particular, it improves the failure message when the wrong link
type is used. From
$ ip li add bond1 type bonding
RTNETLINK answers: Operation not supported
to
$ ip li add bond1 type bonding
Error: Unknown device type.
(The module name is bonding but the link type is bond.)
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add extack argument to ip_fib_metrics_init and add messages for invalid
metrics.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add extack arg to rtnl_create_link and add messages for invalid
number of Tx or Rx queues.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ipv6_gro_receive() compares 34 bytes using slow memcmp(),
while handcoding with a couple of ipv6_addr_equal() is much faster.
Before this patch, "perf top -e cycles:pp -C <cpu>" would
see memcmp() using ~10% of cpu cycles on a 40Gbit NIC
receiving IPv6 TCP traffic.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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WARN_ON() already contains an unlikely(), so it's not necessary to use
unlikely.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I started looking at the history of this driver, and last time the
maintainer was active on the mailing list was when discussing how to
remove it. This was in 2012:
https://lore.kernel.org/lkml/4F4DE175.30002@melware.de/
It looks to me like this has in practice been an orphan for quite a while.
It's throwing warnings about stack size in a function that is in dire
need of refactoring, and it's probably a case of "it's time to call it".
Cc: Armin Schindler <mac@melware.de>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Masami found a slight bug in his code where he transposed the
arguments of a call to strpbrk.
The reason this wasn't detected in our tests is that the only way this
would transpire is when a kprobe event with a symbol offset is
attached to a function that belongs to a module that isn't loaded yet.
When the kprobe trace event is added, the offset would be truncated
after it was parsed, and when the module is loaded, it would use the
symbol without the offset (as the nul character added by the parsing
would not be replaced with the original character)"
* tag 'trace-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/kprobes: Fix strpbrk() argument order
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Fix strpbrk()'s argument order, it must pass acceptable string
in 2nd argument. Note that this can cause a kernel panic where
it recovers backup character to code->data.
Link: http://lkml.kernel.org/r/154108256792.2604.1816052586385217811.stgit@devbox
Fixes: a6682814f371 ("tracing/kprobes: Allow kprobe-events to record module symbol")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Pull ARM fix from Russell King:
"Ard spotted a typo in one of the assembly files which leads to a
kernel oops when that code path is executed. Fix this"
* 'spectre' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8809/1: proc-v7: fix Thumb annotation of cpu_v7_hvc_switch_mm
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Due to what appears to be a copy/paste error, the opening ENTRY()
of cpu_v7_hvc_switch_mm() lacks a matching ENDPROC(), and instead,
the one for cpu_v7_smc_switch_mm() is duplicated.
Given that it is ENDPROC() that emits the Thumb annotation, the
cpu_v7_hvc_switch_mm() routine will be called in ARM mode on a
Thumb2 kernel, resulting in the following splat:
Internal error: Oops - undefined instruction: 0 [#1] SMP THUMB2
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc1-00030-g4d28ad89189d-dirty #488
Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
PC is at cpu_v7_hvc_switch_mm+0x12/0x18
LR is at flush_old_exec+0x31b/0x570
pc : [<c0316efe>] lr : [<c04117c7>] psr: 00000013
sp : ee899e50 ip : 00000000 fp : 00000001
r10: eda28f34 r9 : eda31800 r8 : c12470e0
r7 : eda1fc00 r6 : eda53000 r5 : 00000000 r4 : ee88c000
r3 : c0316eec r2 : 00000001 r1 : eda53000 r0 : 6da6c000
Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Note the 'ISA ARM' in the last line.
Fix this by using the correct name in ENDPROC().
Cc: <stable@vger.kernel.org>
Fixes: 10115105cb3a ("ARM: spectre-v2: add firmware based hardening")
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Pull networking fixes from David Miller:
1) Handle errors mid-stream of an all dump, from Alexey Kodanev.
2) Fix build of openvswitch with certain combinations of netfilter
options, from Arnd Bergmann.
3) Fix interactions between GSO and BQL, from Eric Dumazet.
4) Don't put a '/' in RTL8201F's sysfs file name, from Holger
Hoffstätte.
5) S390 qeth driver fixes from Julian Wiedmann.
6) Allow ipv6 link local addresses for netconsole when both source and
destination are link local, from Matwey V. Kornilov.
7) Fix the BPF program address seen in /proc/kallsyms, from Song Liu.
8) Initialize mutex before use in dsa microchip driver, from Tristram
Ha.
9) Out-of-bounds access in hns3, from Yunsheng Lin.
10) Various netfilter fixes from Stefano Brivio, Jozsef Kadlecsik, Jiri
Slaby, Florian Westphal, Eric Westbrook, Andrey Ryabinin, and Pablo
Neira Ayuso.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (50 commits)
net: alx: make alx_drv_name static
net: bpfilter: fix iptables failure if bpfilter_umh is disabled
sock_diag: fix autoloading of the raw_diag module
net: core: netpoll: Enable netconsole IPv6 link local address
ipv6: properly check return value in inet6_dump_all()
rtnetlink: restore handling of dumpit return value in rtnl_dump_all()
net/ipv6: Move anycast init/cleanup functions out of CONFIG_PROC_FS
bonding/802.3ad: fix link_failure_count tracking
net: phy: realtek: fix RTL8201F sysfs name
sctp: define SCTP_SS_DEFAULT for Stream schedulers
sctp: fix strchange_flags name for Stream Change Event
mlxsw: spectrum: Fix IP2ME CPU policer configuration
openvswitch: fix linking without CONFIG_NF_CONNTRACK_LABELS
qed: fix link config error handling
net: hns3: Fix for out-of-bounds access when setting pfc back pressure
net/mlx4_en: use __netdev_tx_sent_queue()
net: do not abort bulk send on BQL status
net: bql: add __netdev_tx_sent_queue()
s390/qeth: report 25Gbit link speed
s390/qeth: sanitize ARP requests
...
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains the first batch of Netfilter fixes for
your net tree:
1) Fix splat with IPv6 defragmenting locally generated fragments,
from Florian Westphal.
2) Fix Incorrect check for missing attribute in nft_osf.
3) Missing INT_MIN & INT_MAX definition for netfilter bridge uapi
header, from Jiri Slaby.
4) Revert map lookup in nft_numgen, this is already possible with
the existing infrastructure without this extension.
5) Fix wrong listing of set reference counter, make counter
synchronous again, from Stefano Brivio.
6) Fix CIDR 0 in hash:net,port,net, from Eric Westbrook.
7) Fix allocation failure with large set, use kvcalloc().
From Andrey Ryabinin.
8) No need to disable BH when fetch ip set comment, patch from
Jozsef Kadlecsik.
9) Sanity check for valid sysfs entry in xt_IDLETIMER, from
Taehee Yoo.
10) Fix suspicious rcu usage via ip_set() macro at netlink dump,
from Jozsef Kadlecsik.
11) Fix setting default timeout via nfnetlink_cttimeout, this
comes with preparation patch to add nf_{tcp,udp,...}_pernet()
helper.
12) Allow ebtables table nat to be of filter type via nft_compat.
From Florian Westphal.
13) Incorrect calculation of next bucket in early_drop, do no bump
hash value, update bucket counter instead. From Vasily Khoruzhick.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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If there's no entry to drop in bucket that corresponds to the hash,
early_drop() should look for it in other buckets. But since it increments
hash instead of bucket number, it actually looks in the same bucket 8
times: hsize is 16k by default (14 bits) and hash is 32-bit value, so
reciprocal_scale(hash, hsize) returns the same value for hash..hash+7 in
most cases.
Fix it by increasing bucket number instead of hash and rename _hash
to bucket to avoid future confusion.
Fixes: 3e86638e9a0b ("netfilter: conntrack: consider ct netns in early_drop logic")
Cc: <stable@vger.kernel.org> # v4.7+
Signed-off-by: Vasily Khoruzhick <vasilykh@arista.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Unlike ip(6)tables, the ebtables nat table has no special properties.
This bug causes 'ebtables -A' to fail when using a target such as
'snat' (ebt_snat target sets ".table = "nat"'). Targets that have
no table restrictions work fine.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Otherwise, we hit a NULL pointer deference since handlers always assume
default timeout policy is passed.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor2'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9575 Comm: syz-executor1 Not tainted 4.19.0+ #312
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170 net/netfilter/nf_conntrack_proto_icmp.c:297
Fixes: c779e849608a ("netfilter: conntrack: remove get_timeout() indirection")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Expose these functions to access conntrack protocol tracker netns area,
nfnetlink_cttimeout needs this.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The ip_set() macro is called when either ip_set_ref_lock held only
or no lock/nfnl mutex is held at dumping. Take this into account
properly. Also, use Pablo's suggestion to use rcu_dereference_raw(),
the ref_netlink protects the set.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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When IDLETIMER rule is added, sysfs file is created under
/sys/class/xt_idletimer/timers/
But some label name shouldn't be used.
".", "..", "power", "uevent", "subsystem", etc...
So that sysfs filename checking routine is needed.
test commands:
%iptables -I INPUT -j IDLETIMER --timeout 1 --label "power"
splat looks like:
[95765.423132] sysfs: cannot create duplicate filename '/devices/virtual/xt_idletimer/timers/power'
[95765.433418] CPU: 0 PID: 8446 Comm: iptables Not tainted 4.19.0-rc6+ #20
[95765.449755] Call Trace:
[95765.449755] dump_stack+0xc9/0x16b
[95765.449755] ? show_regs_print_info+0x5/0x5
[95765.449755] sysfs_warn_dup+0x74/0x90
[95765.449755] sysfs_add_file_mode_ns+0x352/0x500
[95765.449755] sysfs_create_file_ns+0x179/0x270
[95765.449755] ? sysfs_add_file_mode_ns+0x500/0x500
[95765.449755] ? idletimer_tg_checkentry+0x3e5/0xb1b [xt_IDLETIMER]
[95765.449755] ? rcu_read_lock_sched_held+0x114/0x130
[95765.449755] ? __kmalloc_track_caller+0x211/0x2b0
[95765.449755] ? memcpy+0x34/0x50
[95765.449755] idletimer_tg_checkentry+0x4e2/0xb1b [xt_IDLETIMER]
[ ... ]
Fixes: 0902b469bd25 ("netfilter: xtables: idletimer target implementation")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The function is called when rcu_read_lock() is held and not
when rcu_read_lock_bh() is held.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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ip_set_create() and ip_set_net_init() attempt to allocate physically
contiguous memory for ip_set_list. If memory is fragmented, the
allocations could easily fail:
vzctl: page allocation failure: order:7, mode:0xc0d0
Call Trace:
dump_stack+0x19/0x1b
warn_alloc_failed+0x110/0x180
__alloc_pages_nodemask+0x7bf/0xc60
alloc_pages_current+0x98/0x110
kmalloc_order+0x18/0x40
kmalloc_order_trace+0x26/0xa0
__kmalloc+0x279/0x290
ip_set_net_init+0x4b/0x90 [ip_set]
ops_init+0x3b/0xb0
setup_net+0xbb/0x170
copy_net_ns+0xf1/0x1c0
create_new_namespaces+0xf9/0x180
copy_namespaces+0x8e/0xd0
copy_process+0xb61/0x1a00
do_fork+0x91/0x320
Use kvcalloc() to fallback to 0-order allocations if high order
page isn't available.
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Allow /0 as advertised for hash:net,port,net sets.
For "hash:net,port,net", ipset(8) says that "either subnet
is permitted to be a /0 should you wish to match port
between all destinations."
Make that statement true.
Before:
# ipset create cidrzero hash:net,port,net
# ipset add cidrzero 0.0.0.0/0,12345,0.0.0.0/0
ipset v6.34: The value of the CIDR parameter of the IP address is invalid
# ipset create cidrzero6 hash:net,port,net family inet6
# ipset add cidrzero6 ::/0,12345,::/0
ipset v6.34: The value of the CIDR parameter of the IP address is invalid
After:
# ipset create cidrzero hash:net,port,net
# ipset add cidrzero 0.0.0.0/0,12345,0.0.0.0/0
# ipset test cidrzero 192.168.205.129,12345,172.16.205.129
192.168.205.129,tcp:12345,172.16.205.129 is in set cidrzero.
# ipset create cidrzero6 hash:net,port,net family inet6
# ipset add cidrzero6 ::/0,12345,::/0
# ipset test cidrzero6 fe80::1,12345,ff00::1
fe80::1,tcp:12345,ff00::1 is in set cidrzero6.
See also:
https://bugzilla.kernel.org/show_bug.cgi?id=200897
https://github.com/ewestbrook/linux/commit/df7ff6efb0934ab6acc11f003ff1a7580d6c1d9c
Signed-off-by: Eric Westbrook <linux@westbrook.io>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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replace
Commit 45040978c899 ("netfilter: ipset: Fix set:list type crash
when flush/dump set in parallel") postponed decreasing set
reference counters to the RCU callback.
An 'ipset del' command can terminate before the RCU grace period
is elapsed, and if sets are listed before then, the reference
counter shown in userspace will be wrong:
# ipset create h hash:ip; ipset create l list:set; ipset add l
# ipset del l h; ipset list h
Name: h
Type: hash:ip
Revision: 4
Header: family inet hashsize 1024 maxelem 65536
Size in memory: 88
References: 1
Number of entries: 0
Members:
# sleep 1; ipset list h
Name: h
Type: hash:ip
Revision: 4
Header: family inet hashsize 1024 maxelem 65536
Size in memory: 88
References: 0
Number of entries: 0
Members:
Fix this by making the reference count update synchronous again.
As a result, when sets are listed, ip_set_name_byindex() might
now fetch a set whose reference count is already zero. Instead
of relying on the reference count to protect against concurrent
set renaming, grab ip_set_ref_lock as reader and copy the name,
while holding the same lock in ip_set_rename() as writer
instead.
Reported-by: Li Shuang <shuali@redhat.com>
Fixes: 45040978c899 ("netfilter: ipset: Fix set:list type crash when flush/dump set in parallel")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Laura found a better way to do this from userspace without requiring
kernel infrastructure, revert this.
Fixes: 978d8f9055c3 ("netfilter: nft_numgen: add map lookups for numgen random operations")
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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With 4.19, programs like ebtables fail to build when they include
"linux/netfilter_bridge.h". It is caused by commit 94276fa8a2a4 which
added a use of INT_MIN and INT_MAX to the header:
: In file included from /usr/include/linux/netfilter_bridge/ebtables.h:18,
: from include/ebtables_u.h:28,
: from communication.c:23:
: /usr/include/linux/netfilter_bridge.h:30:20: error: 'INT_MIN' undeclared here (not in a function)
: NF_BR_PRI_FIRST = INT_MIN,
: ^~~~~~~
Define these constants by including "limits.h" when !__KERNEL__ (the
same way as for other netfilter_* headers).
Fixes: 94276fa8a2a4 ("netfilter: bridge: Expose nf_tables bridge hook priorities through uapi")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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If the attribute is not sent, eg. old libnftnl binary, then
tb[NFTA_OSF_TTL] is NULL and kernel crashes from the _init path.
Fixes: a218dc82f0b5 ("netfilter: nft_osf: Add ttl option support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Unlike ipv4 and normal ipv6 defrag, netfilter ipv6 defragmentation did
not save/restore skb->dst.
This causes oops when handling locally generated ipv6 fragments, as
output path needs a valid dst.
Reported-by: Maciej Żenczykowski <zenczykowski@gmail.com>
Fixes: 84379c9afe01 ("netfilter: ipv6: nf_defrag: drop skb dst before queueing")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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alx_drv_name is not used outside main.c, so there's no reason for it to
have external linkage.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When iptables command is executed, ip_{set/get}sockopt() try to upload
bpfilter.ko if bpfilter is enabled. if it couldn't find bpfilter.ko,
command is failed.
bpfilter.ko is generated if CONFIG_BPFILTER_UMH is enabled.
ip_{set/get}sockopt() only checks CONFIG_BPFILTER.
So that if CONFIG_BPFILTER is enabled and CONFIG_BPFILTER_UMH is disabled,
iptables command is always failed.
test config:
CONFIG_BPFILTER=y
# CONFIG_BPFILTER_UMH is not set
test command:
%iptables -L
iptables: No chain/target/match by that name.
Fixes: d2ba09c17a06 ("net: add skeleton of bpfilter kernel module")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IPPROTO_RAW isn't registred as an inet protocol, so
inet_protos[protocol] is always NULL for it.
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Xin Long <lucien.xin@gmail.com>
Fixes: bf2ae2e4bf93 ("sock_diag: request _diag module only when the family or proto has been registered")
Signed-off-by: Andrei Vagin <avagin@gmail.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is no reason to discard using source link local address when
remote netconsole IPv6 address is set to be link local one.
The patch allows administrators to use IPv6 netconsole without
explicitly configuring source address:
netconsole=@/,@fe80::5054:ff:fe2f:6012/
Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make sure we call fib6_dump_end() if it happens that skb->len
is zero. rtnl_dump_all() can reset cb->args on the next loop
iteration there.
Fixes: 08e814c9e8eb ("net/ipv6: Bail early if user only wants cloned entries")
Fixes: ae677bbb4441 ("net: Don't return invalid table id error when dumping all families")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For non-zero return from dumpit() we should break the loop
in rtnl_dump_all() and return the result. Otherwise, e.g.,
we could get the memory leak in inet6_dump_fib() [1]. The
pointer to the allocated struct fib6_walker there (saved
in cb->args) can be lost, reset on the next iteration.
Fix it by partially restoring the previous behavior before
commit c63586dc9b3e ("net: rtnl_dump_all needs to propagate
error from dumpit function"). The returned error from
dumpit() is still passed further.
[1]:
unreferenced object 0xffff88001322a200 (size 96):
comm "sshd", pid 1484, jiffies 4296032768 (age 1432.542s)
hex dump (first 32 bytes):
00 01 00 00 00 00 ad de 00 02 00 00 00 00 ad de ................
18 09 41 36 00 88 ff ff 18 09 41 36 00 88 ff ff ..A6......A6....
backtrace:
[<0000000095846b39>] kmem_cache_alloc_trace+0x151/0x220
[<000000007d12709f>] inet6_dump_fib+0x68d/0x940
[<000000002775a316>] rtnl_dump_all+0x1d9/0x2d0
[<00000000d7cd302b>] netlink_dump+0x945/0x11a0
[<000000002f43485f>] __netlink_dump_start+0x55d/0x800
[<00000000f76bbeec>] rtnetlink_rcv_msg+0x4fa/0xa00
[<000000009b5761f3>] netlink_rcv_skb+0x29c/0x420
[<0000000087a1dae1>] rtnetlink_rcv+0x15/0x20
[<00000000691b703b>] netlink_unicast+0x4e3/0x6c0
[<00000000b5be0204>] netlink_sendmsg+0x7f2/0xba0
[<0000000096d2aa60>] sock_sendmsg+0xba/0xf0
[<000000008c1b786f>] __sys_sendto+0x1e4/0x330
[<0000000019587b3f>] __x64_sys_sendto+0xe1/0x1a0
[<00000000071f4d56>] do_syscall_64+0x9f/0x300
[<000000002737577f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[<0000000057587684>] 0xffffffffffffffff
Fixes: c63586dc9b3e ("net: rtnl_dump_all needs to propagate error from dumpit function")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move the anycast.c init and cleanup functions which were inadvertently
added inside the CONFIG_PROC_FS definition.
Fixes: 2384d02520ff ("net/ipv6: Add anycast addresses to a global hashtable")
Signed-off-by: Jeff Barnhill <0xeffeff@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 4d2c0cda07448ea6980f00102dc3964eb25e241c set slave->link to
BOND_LINK_DOWN for 802.3ad bonds whenever invalid speed/duplex values
were read, to fix a problem with slaves getting into weird states, but
in the process, broke tracking of link failures, as going straight to
BOND_LINK_DOWN when a link is indeed down (cable pulled, switch rebooted)
means we broke out of bond_miimon_inspect()'s BOND_LINK_DOWN case because
!link_state was already true, we never incremented commit, and never got
a chance to call bond_miimon_commit(), where slave->link_failure_count
would be incremented. I believe the simple fix here is to mark the slave
as BOND_LINK_FAIL, and let bond_miimon_inspect() transition the link from
_FAIL to either _UP or _DOWN, and in the latter case, we now get proper
incrementing of link_failure_count again.
Fixes: 4d2c0cda0744 ("bonding: speed/duplex update at NETDEV_UP event")
CC: Mahesh Bandewar <maheshb@google.com>
CC: David S. Miller <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: stable@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since 4.19 the following error in sysfs has appeared when using the
r8169 NIC driver:
$cd /sys/module/realtek/drivers
$ls -l
ls: cannot access 'mdio_bus:RTL8201F 10/100Mbps Ethernet': No such file or directory
[..garbled dir entries follow..]
Apparently the forward slash in "10/100Mbps Ethernet" is interpreted
as directory separator that leads nowhere, and was introduced in commit
513588dd44b ("net: phy: realtek: add RTL8201F phy-id and functions").
Fix this by removing the offending slash in the driver name.
Other drivers in net/phy seem to have the same problem, but I cannot
test/verify them.
Fixes: 513588dd44b ("net: phy: realtek: add RTL8201F phy-id and functions")
Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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According to rfc8260#section-4.3.2, SCTP_SS_DEFAULT is required to
defined as SCTP_SS_FCFS or SCTP_SS_RR.
SCTP_SS_FCFS is used for SCTP_SS_DEFAULT's value in this patch.
Fixes: 5bbbbe32a431 ("sctp: introduce stream scheduler foundations")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As defined in rfc6525#section-6.1.3, SCTP_STREAM_CHANGE_DENIED
and SCTP_STREAM_CHANGE_FAILED should be used instead of
SCTP_ASSOC_CHANGE_DENIED and SCTP_ASSOC_CHANGE_FAILED.
To keep the compatibility, fix it by adding two macros.
Fixes: b444153fb5a6 ("sctp: add support for generating add stream change event notification")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann says:
====================
pull-request: bpf 2018-11-03
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix BPF prog kallsyms and bpf_prog_get_info_by_fd() jited address export
to not use page start but actual start instead to work correctly with
profiling e.g. finding hot instructions from stack traces. Also fix latter
with regards to dumping address and jited len for !multi prog, from Song.
2) Fix bpf_prog_get_info_by_fd() for !root to zero info.nr_jited_func_lens
instead of leaving the user provided length, from Daniel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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While dbecd7388476 ("bpf: get kernel symbol addresses via syscall")
zeroed info.nr_jited_ksyms in bpf_prog_get_info_by_fd() for queries
from unprivileged users, commit 815581c11cc2 ("bpf: get JITed image
lengths of functions via syscall") forgot about doing so and therefore
returns the #elems of the user set up buffer which is incorrect. It
also needs to indicate a info.nr_jited_func_lens of zero.
Fixes: 815581c11cc2 ("bpf: get JITed image lengths of functions via syscall")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Sandipan Das <sandipan@linux.vnet.ibm.com>
Cc: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Song Liu says:
====================
Changes v1 -> v2:
1. Added main program length to bpf_prog_info->jited_fun_lens (3/3).
2. Updated commit message of 1/3 and 2/3 with more background about the
address masking, and why it is still save after the changes.
3. Replace "ulong" with "unsigned long".
This set improves bpf program address showed in /proc/kallsyms and in
bpf_prog_info. First, real program address is showed instead of page
address. Second, when there is no subprogram, bpf_prog_info->jited_ksyms
and bpf_prog_info->jited_fun_lens returns the main prog address and
length.
====================
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Currently, when there is no subprog (prog->aux->func_cnt == 0),
bpf_prog_info does not return any jited_ksyms or jited_func_lens. This
patch adds main program address (prog->bpf_func) and main program
length (prog->jited_len) to bpf_prog_info.
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Currently, jited_ksyms in bpf_prog_info shows page addresses of jited
bpf program. The main reason here is to not expose randomized start
address. However, this is not ideal for detailed profiling (find hot
instructions from stack traces). This patch replaces the page address
with real prog start address.
This change is OK because bpf_prog_get_info_by_fd() is only available
to root.
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Currently, /proc/kallsyms shows page address of jited bpf program. The
main reason here is to not expose randomized start address. However,
This is not ideal for detailed profiling (find hot instructions from
stack traces). This patch replaces the page address with real prog start
address.
This change is OK because these addresses are still protected by sysctl
kptr_restrict (see kallsyms_show_value()), and only programs loaded by
root are added to kallsyms (see bpf_prog_kallsyms_add()).
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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The CPU policer used to police packets being trapped via a local route
(IP2ME) was incorrectly configured to police based on bytes per second
instead of packets per second.
Change the policer to police based on packets per second and avoid
packet loss under certain circumstances.
Fixes: 9148e7cf73ce ("mlxsw: spectrum: Add policers for trap groups")
Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When CONFIG_CC_OPTIMIZE_FOR_DEBUGGING is enabled, the compiler
fails to optimize out a dead code path, which leads to a link failure:
net/openvswitch/conntrack.o: In function `ovs_ct_set_labels':
conntrack.c:(.text+0x2e60): undefined reference to `nf_connlabels_replace'
In this configuration, we can take a shortcut, and completely
remove the contrack label code. This may also help the regular
optimization.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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gcc-8 notices that qed_mcp_get_transceiver_data() may fail to
return a result to the caller:
drivers/net/ethernet/qlogic/qed/qed_mcp.c: In function 'qed_mcp_trans_speed_mask':
drivers/net/ethernet/qlogic/qed/qed_mcp.c:1955:2: error: 'transceiver_type' may be used uninitialized in this function [-Werror=maybe-uninitialized]
When an error is returned by qed_mcp_get_transceiver_data(), we
should propagate that to the caller of qed_mcp_trans_speed_mask()
rather than continuing with uninitialized data.
Fixes: c56a8be7e7aa ("qed: Add supported link and advertise link to display in ethtool.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The vport should be initialized to hdev->vport for each bp group,
otherwise it will cause out-of-bounds access and bp setting not
correct problem.
[ 35.254124] BUG: KASAN: slab-out-of-bounds in hclge_pause_setup_hw+0x2a0/0x3f8 [hclge]
[ 35.254126] Read of size 2 at addr ffff803b6651581a by task kworker/0:1/14
[ 35.254132] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.19.0-rc7-hulk+ #85
[ 35.254133] Hardware name: Huawei D06/D06, BIOS Hisilicon D06 UEFI RC0 - B052 (V0.52) 09/14/2018
[ 35.254141] Workqueue: events work_for_cpu_fn
[ 35.254144] Call trace:
[ 35.254147] dump_backtrace+0x0/0x2f0
[ 35.254149] show_stack+0x24/0x30
[ 35.254154] dump_stack+0x110/0x184
[ 35.254157] print_address_description+0x168/0x2b0
[ 35.254160] kasan_report+0x184/0x310
[ 35.254162] __asan_load2+0x7c/0xa0
[ 35.254170] hclge_pause_setup_hw+0x2a0/0x3f8 [hclge]
[ 35.254177] hclge_tm_init_hw+0x794/0x9f0 [hclge]
[ 35.254184] hclge_tm_schd_init+0x48/0x58 [hclge]
[ 35.254191] hclge_init_ae_dev+0x778/0x1168 [hclge]
[ 35.254196] hnae3_register_ae_dev+0x14c/0x298 [hnae3]
[ 35.254206] hns3_probe+0x88/0xa8 [hns3]
[ 35.254210] local_pci_probe+0x7c/0xf0
[ 35.254212] work_for_cpu_fn+0x34/0x50
[ 35.254214] process_one_work+0x4d4/0xa38
[ 35.254216] worker_thread+0x55c/0x8d8
[ 35.254219] kthread+0x1b0/0x1b8
[ 35.254222] ret_from_fork+0x10/0x1c
[ 35.254224] The buggy address belongs to the page:
[ 35.254228] page:ffff7e00ed994400 count:1 mapcount:0 mapping:0000000000000000 index:0x0 compound_mapcount: 0
[ 35.273835] flags: 0xfffff8000008000(head)
[ 35.282007] raw: 0fffff8000008000 dead000000000100 dead000000000200 0000000000000000
[ 35.282010] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[ 35.282012] page dumped because: kasan: bad access detected
[ 35.282014] Memory state around the buggy address:
[ 35.282017] ffff803b66515700: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[ 35.282019] ffff803b66515780: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[ 35.282021] >ffff803b66515800: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[ 35.282022] ^
[ 35.282024] ffff803b66515880: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[ 35.282026] ffff803b66515900: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[ 35.282028] ==================================================================
[ 35.282029] Disabling lock debugging due to kernel taint
[ 35.282747] hclge driver initialization finished.
Fixes: 67bf2541f4b9 ("net: hns3: Fixes the back pressure setting when sriov is enabled")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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