If the trapping instruction contains a ':', for a memory access through
segment registers for example, the sed substitution will insert the '*'
marker in the middle of the instruction instead of the line address:
2b: 65 48 0f c7 0f cmpxchg16b %gs:*(%rdi) <-- trapping instruction
I started to think I had forgotten some quirk of the assembly syntax
before noticing that it was actually coming from the script. Fix it to
add the address marker at the right place for these instructions:
28: 49 8b 06 mov (%r14),%rax
2b:* 65 48 0f c7 0f cmpxchg16b %gs:(%rdi) <-- trapping instruction
30: 0f 94 c0 sete %al
Fixes: 18ff44b189 ("scripts/decodecode: make faulting insn ptr more robust")
Signed-off-by: Ivan Delalande <colona@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/20200419223653.GA31248@visor
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Without CONFIG_PREEMPT, it can happen that we get soft lockups detected,
e.g., while booting up.
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1]
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.6.0-next-20200331+ #4
Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
RIP: __pageblock_pfn_to_page+0x134/0x1c0
Call Trace:
set_zone_contiguous+0x56/0x70
page_alloc_init_late+0x166/0x176
kernel_init_freeable+0xfa/0x255
kernel_init+0xa/0x106
ret_from_fork+0x35/0x40
The issue becomes visible when having a lot of memory (e.g., 4TB)
assigned to a single NUMA node - a system that can easily be created
using QEMU. Inside VMs on a hypervisor with quite some memory
overcommit, this is fairly easy to trigger.
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Shile Zhang <shile.zhang@linux.alibaba.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Alexander Duyck <alexander.duyck@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200416073417.5003-1-david@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When I run my memcg testcase which creates lots of memcgs, I found
there're unexpected out of memory logs while there're still enough
available free memory. The error log is
mkdir: cannot create directory 'foo.65533': Cannot allocate memory
The reason is when we try to create more than MEM_CGROUP_ID_MAX memcgs,
an -ENOMEM errno will be set by mem_cgroup_css_alloc(), but the right
errno should be -ENOSPC "No space left on device", which is an
appropriate errno for userspace's failed mkdir.
As the errno really misled me, we should make it right. After this
patch, the error log will be
mkdir: cannot create directory 'foo.65533': No space left on device
[akpm@linux-foundation.org: s/EBUSY/ENOSPC/, per Michal]
[akpm@linux-foundation.org: s/EBUSY/ENOSPC/, per Michal]
Fixes: 73f576c04b ("mm: memcontrol: fix cgroup creation failure after many small jobs")
Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Link: http://lkml.kernel.org/r/20200407063621.GA18914@dhcp22.suse.cz
Link: http://lkml.kernel.org/r/1586192163-20099-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking fixes from David Miller:
1) Fix reference count leaks in various parts of batman-adv, from Xiyu
Yang.
2) Update NAT checksum even when it is zero, from Guillaume Nault.
3) sk_psock reference count leak in tls code, also from Xiyu Yang.
4) Sanity check TCA_FQ_CODEL_DROP_BATCH_SIZE netlink attribute in
fq_codel, from Eric Dumazet.
5) Fix panic in choke_reset(), also from Eric Dumazet.
6) Fix VLAN accel handling in bnxt_fix_features(), from Michael Chan.
7) Disallow out of range quantum values in sch_sfq, from Eric Dumazet.
8) Fix crash in x25_disconnect(), from Yue Haibing.
9) Don't pass pointer to local variable back to the caller in
nf_osf_hdr_ctx_init(), from Arnd Bergmann.
10) Wireguard should use the ECN decap helper functions, from Toke
Høiland-Jørgensen.
11) Fix command entry leak in mlx5 driver, from Moshe Shemesh.
12) Fix uninitialized variable access in mptcp's
subflow_syn_recv_sock(), from Paolo Abeni.
13) Fix unnecessary out-of-order ingress frame ordering in macsec, from
Scott Dial.
14) IPv6 needs to use a global serial number for dst validation just
like ipv4, from David Ahern.
15) Fix up PTP_1588_CLOCK deps, from Clay McClure.
16) Missing NLM_F_MULTI flag in gtp driver netlink messages, from
Yoshiyuki Kurauchi.
17) Fix a regression in that dsa user port errors should not be fatal,
from Florian Fainelli.
18) Fix iomap leak in enetc driver, from Dejin Zheng.
19) Fix use after free in lec_arp_clear_vccs(), from Cong Wang.
20) Initialize protocol value earlier in neigh code paths when
generating events, from Roman Mashak.
21) netdev_update_features() must be called with RTNL mutex in macsec
driver, from Antoine Tenart.
22) Validate untrusted GSO packets even more strictly, from Willem de
Bruijn.
23) Wireguard decrypt worker needs a cond_resched(), from Jason
Donenfeld.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (111 commits)
net: flow_offload: skip hw stats check for FLOW_ACTION_HW_STATS_DONT_CARE
MAINTAINERS: put DYNAMIC INTERRUPT MODERATION in proper order
wireguard: send/receive: use explicit unlikely branch instead of implicit coalescing
wireguard: selftests: initalize ipv6 members to NULL to squelch clang warning
wireguard: send/receive: cond_resched() when processing worker ringbuffers
wireguard: socket: remove errant restriction on looping to self
wireguard: selftests: use normal kernel stack size on ppc64
net: ethernet: ti: am65-cpsw-nuss: fix irqs type
ionic: Use debugfs_create_bool() to export bool
net: dsa: Do not leave DSA master with NULL netdev_ops
net: dsa: remove duplicate assignment in dsa_slave_add_cls_matchall_mirred
net: stricter validation of untrusted gso packets
seg6: fix SRH processing to comply with RFC8754
net: mscc: ocelot: ANA_AUTOAGE_AGE_PERIOD holds a value in seconds, not ms
net: dsa: ocelot: the MAC table on Felix is twice as large
net: dsa: sja1105: the PTP_CLK extts input reacts on both edges
selftests: net: tcp_mmap: fix SO_RCVLOWAT setting
net: hsr: fix incorrect type usage for protocol variable
net: macsec: fix rtnl locking issue
net: mvpp2: cls: Prevent buffer overflow in mvpp2_ethtool_cls_rule_del()
...
This patch adds FLOW_ACTION_HW_STATS_DONT_CARE which tells the driver
that the frontend does not need counters, this hw stats type request
never fails. The FLOW_ACTION_HW_STATS_DISABLED type explicitly requests
the driver to disable the stats, however, if the driver cannot disable
counters, it bails out.
TCA_ACT_HW_STATS_* maintains the 1:1 mapping with FLOW_ACTION_HW_STATS_*
except by disabled which is mapped to FLOW_ACTION_HW_STATS_DISABLED
(this is 0 in tc). Add tc_act_hw_stats() to perform the mapping between
TCA_ACT_HW_STATS_* and FLOW_ACTION_HW_STATS_*.
Fixes: 319a1d1947 ("flow_offload: check for basic action hw stats type")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 9b038086f0 ("docs: networking: convert DIM to RST") added a new
file entry to DYNAMIC INTERRUPT MODERATION to the end, and not following
alphabetical order.
So, ./scripts/checkpatch.pl -f MAINTAINERS complains:
WARNING: Misordered MAINTAINERS entry - list file patterns in alphabetic
order
#5966: FILE: MAINTAINERS:5966:
+F: lib/dim/
+F: Documentation/networking/net_dim.rst
Reorder the file entries to keep MAINTAINERS nicely ordered.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason A. Donenfeld says:
====================
wireguard fixes for 5.7-rc5
With Ubuntu and Debian having backported this into their kernels, we're
finally seeing testing from places we hadn't seen prior, which is nice.
With that comes more fixes:
1) The CI for PPC64 was running with extremely small stacks for 64-bit,
causing spurious crashes in surprising places.
2) There's was an old leftover routing loop restriction, which no longer
makes sense given the queueing architecture, and was causing problems
for people who really did want nested routing.
3) Not yielding our kthread on CONFIG_PREEMPT_VOLUNTARY systems caused
RCU stalls and other issues, reported by Wang Jian, with the fix
suggested by Sultan Alsawaf.
4) Clang spewed warnings in a selftest for CONFIG_IPV6=n, reported by
Arnd Bergmann.
5) A complicated if statement was simplified to an assignment while also
making the likely/unlikely hinting more correct and simple, and
increasing readability, suggested by Sultan.
Patches (2) and (3) have Fixes: lines and are probably good candidates
for stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It's very unlikely that send will become true. It's nearly always false
between 0 and 120 seconds of a session, and in most cases becomes true
only between 120 and 121 seconds before becoming false again. So,
unlikely(send) is clearly the right option here.
What happened before was that we had this complex boolean expression
with multiple likely and unlikely clauses nested. Since this is
evaluated left-to-right anyway, the whole thing got converted to
unlikely. So, we can clean this up to better represent what's going on.
The generated code is the same.
Suggested-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Without setting these to NULL, clang complains in certain
configurations that have CONFIG_IPV6=n:
In file included from drivers/net/wireguard/ratelimiter.c:223:
drivers/net/wireguard/selftest/ratelimiter.c:173:34: error: variable 'skb6' is uninitialized when used here [-Werror,-Wuninitialized]
ret = timings_test(skb4, hdr4, skb6, hdr6, &test_count);
^~~~
drivers/net/wireguard/selftest/ratelimiter.c:123:29: note: initialize the variable 'skb6' to silence this warning
struct sk_buff *skb4, *skb6;
^
= NULL
drivers/net/wireguard/selftest/ratelimiter.c:173:40: error: variable 'hdr6' is uninitialized when used here [-Werror,-Wuninitialized]
ret = timings_test(skb4, hdr4, skb6, hdr6, &test_count);
^~~~
drivers/net/wireguard/selftest/ratelimiter.c:125:22: note: initialize the variable 'hdr6' to silence this warning
struct ipv6hdr *hdr6;
^
We silence this warning by setting the variables to NULL as the warning
suggests.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Users with pathological hardware reported CPU stalls on CONFIG_
PREEMPT_VOLUNTARY=y, because the ringbuffers would stay full, meaning
these workers would never terminate. That turned out not to be okay on
systems without forced preemption, which Sultan observed. This commit
adds a cond_resched() to the bottom of each loop iteration, so that
these workers don't hog the core. Note that we don't need this on the
napi poll worker, since that terminates after its budget is expended.
Suggested-by: Sultan Alsawaf <sultan@kerneltoast.com>
Reported-by: Wang Jian <larkwang@gmail.com>
Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's already possible to create two different interfaces and loop
packets between them. This has always been possible with tunnels in the
kernel, and isn't specific to wireguard. Therefore, the networking stack
already needs to deal with that. At the very least, the packet winds up
exceeding the MTU and is discarded at that point. So, since this is
already something that happens, there's no need to forbid the not very
exceptional case of routing a packet back to the same interface; this
loop is no different than others, and we shouldn't special case it, but
rather rely on generic handling of loops in general. This also makes it
easier to do interesting things with wireguard such as onion routing.
At the same time, we add a selftest for this, ensuring that both onion
routing works and infinite routing loops do not crash the kernel. We
also add a test case for wireguard interfaces nesting packets and
sending traffic between each other, as well as the loop in this case
too. We make sure to send some throughput-heavy traffic for this use
case, to stress out any possible recursion issues with the locks around
workqueues.
Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While at some point it might have made sense to be running these tests
on ppc64 with 4k stacks, the kernel hasn't actually used 4k stacks on
64-bit powerpc in a long time, and more interesting things that we test
don't really work when we deviate from the default (16k). So, we stop
pushing our luck in this commit, and return to the default instead of
the minimum.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The K3 INTA driver, which is source TX/RX IRQs for CPSW NUSS, defines IRQs
triggering type as EDGE by default, but triggering type for CPSW NUSS TX/RX
IRQs has to be LEVEL as the EDGE triggering type may cause unnecessary IRQs
triggering and NAPI scheduling for empty queues. It was discovered with
RT-kernel.
Fix it by explicitly specifying CPSW NUSS TX/RX IRQ type as
IRQF_TRIGGER_HIGH.
Fixes: 93a7653031 ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently bool ionic_cq.done_color is exported using
debugfs_create_u8(), which requires a cast, preventing further compiler
checks.
Fix this by switching to debugfs_create_bool(), and dropping the cast.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
When ndo_get_phys_port_name() for the CPU port was added we introduced
an early check for when the DSA master network device in
dsa_master_ndo_setup() already implements ndo_get_phys_port_name(). When
we perform the teardown operation in dsa_master_ndo_teardown() we would
not be checking that cpu_dp->orig_ndo_ops was successfully allocated and
non-NULL initialized.
With network device drivers such as virtio_net, this leads to a NPD as
soon as the DSA switch hanging off of it gets torn down because we are
now assigning the virtio_net device's netdev_ops a NULL pointer.
Fixes: da7b9e9b00 ("net: dsa: Add ndo_get_phys_port_name() for CPU port")
Reported-by: Allen Pais <allen.pais@oracle.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Allen Pais <allen.pais@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This was caused by a poor merge conflict resolution on my side. The
"act = &cls->rule->action.entries[0];" assignment was already present in
the code prior to the patch mentioned below.
Fixes: e13c207528 ("net: dsa: refactor matchall mirred action to separate function")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Syzkaller again found a path to a kernel crash through bad gso input:
a packet with transport header extending beyond skb_headlen(skb).
Tighten validation at kernel entry:
- Verify that the transport header lies within the linear section.
To avoid pulling linux/tcp.h, verify just sizeof tcphdr.
tcp_gso_segment will call pskb_may_pull (th->doff * 4) before use.
- Match the gso_type against the ip_proto found by the flow dissector.
Fixes: bfd5f4a3d6 ("packet: Add GSO/csum offload support.")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Segment Routing Header (SRH) which defines the SRv6 dataplane is defined
in RFC8754.
RFC8754 (section 4.1) defines the SR source node behavior which encapsulates
packets into an outer IPv6 header and SRH. The SR source node encodes the
full list of Segments that defines the packet path in the SRH. Then, the
first segment from list of Segments is copied into the Destination address
of the outer IPv6 header and the packet is sent to the first hop in its path
towards the destination.
If the Segment list has only one segment, the SR source node can omit the SRH
as he only segment is added in the destination address.
RFC8754 (section 4.1.1) defines the Reduced SRH, when a source does not
require the entire SID list to be preserved in the SRH. A reduced SRH does
not contain the first segment of the related SR Policy (the first segment is
the one already in the DA of the IPv6 header), and the Last Entry field is
set to n-2, where n is the number of elements in the SR Policy.
RFC8754 (section 4.3.1.1) defines the SRH processing and the logic to
validate the SRH (S09, S10, S11) which works for both reduced and
non-reduced behaviors.
This patch updates seg6_validate_srh() to validate the SRH as per RFC8754.
Signed-off-by: Ahmed Abdelsalam <ahabdels@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean says:
====================
FDB fixes for Felix and Ocelot switches
This series fixes the following problems:
- Dynamically learnt addresses never expiring (neither for Ocelot nor
for Felix)
- Half of the FDB not visible in 'bridge fdb show' (for Felix only)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
One may notice that automatically-learnt entries 'never' expire, even
though the bridge configures the address age period at 300 seconds.
Actually the value written to hardware corresponds to a time interval
1000 times higher than intended, i.e. 83 hours.
Fixes: a556c76adc ("net: mscc: Add initial Ocelot switch support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Faineli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When running 'bridge fdb dump' on Felix, sometimes learnt and static MAC
addresses would appear, sometimes they wouldn't.
Turns out, the MAC table has 4096 entries on VSC7514 (Ocelot) and 8192
entries on VSC9959 (Felix), so the existing code from the Ocelot common
library only dumped half of Felix's MAC table. They are both organized
as a 4-way set-associative TCAM, so we just need a single variable
indicating the correct number of rows.
Fixes: 5605194877 ("net: dsa: ocelot: add driver for Felix switch family")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a resource allocation issue in cros_ec_sensorhub.c.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQCtZK6p/AktxXfkOlzbaomhzOwwgUCXrIE1wAKCRBzbaomhzOw
wrteAP4hRbJPMRDIXm5zc5TgqCk7YwgnJDWSjZTRNj0DyMlg9AEA1g9/DHPH20J5
jmd8OZR8c64BQBIM1dNc63F6NkikVg0=
=cd4R
-----END PGP SIGNATURE-----
Merge tag 'tag-chrome-platform-fixes-for-v5.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform fix from Benson Leung:
"Fix a resource allocation issue in cros_ec_sensorhub.c"
* tag 'tag-chrome-platform-fixes-for-v5.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: cros_ec_sensorhub: Allocate sensorhub resource before claiming sensors
It looks like the sja1105 external timestamping input is not as generic
as we thought. When fed a signal with 50% duty cycle, it will timestamp
both the rising and the falling edge. When fed a short pulse signal,
only the timestamp of the falling edge will be seen in the PTPSYNCTS
register, because that of the rising edge had been overwritten. So the
moral is: don't feed it short pulse inputs.
Luckily this is not a complete deal breaker, as we can still work with
1 Hz square waves. But the problem is that the extts polling period was
not dimensioned enough for this input signal. If we leave the period at
half a second, we risk losing timestamps due to jitter in the measuring
process. So we need to increase it to 4 times per second.
Also, the very least we can do to inform the user is to deny any other
flags combination than with PTP_RISING_EDGE and PTP_FALLING_EDGE both
set.
Fixes: 747e5eb31d ("net: dsa: sja1105: configure the PTP_CLK pin as EXT_TS or PER_OUT")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since chunk_size is no longer an integer, we can not
use it directly as an argument of setsockopt().
This patch should fix tcp_mmap for Big Endian kernels.
Fixes: 597b01edaf ("selftests: net: avoid ptl lock contention in tcp_mmap")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Arjun Roy <arjunroy@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix following sparse checker warning:-
net/hsr/hsr_slave.c:38:18: warning: incorrect type in assignment (different base types)
net/hsr/hsr_slave.c:38:18: expected unsigned short [unsigned] [usertype] protocol
net/hsr/hsr_slave.c:38:18: got restricted __be16 [usertype] h_proto
net/hsr/hsr_slave.c:39:25: warning: restricted __be16 degrades to integer
net/hsr/hsr_slave.c:39:57: warning: restricted __be16 degrades to integer
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
netdev_update_features() must be called with the rtnl lock taken. Not
doing so triggers a warning, as ASSERT_RTNL() is used in
__netdev_update_features(), the first function called by
netdev_update_features(). Fix this.
Fixes: c850240b6c ("net: macsec: report real_dev features when HW offloading is enabled")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The "info->fs.location" is a u32 that comes from the user via the
ethtool_set_rxnfc() function. We need to check for invalid values to
prevent a buffer overflow.
I copy and pasted this check from the mvpp2_ethtool_cls_rule_ins()
function.
Fixes: 90b509b39a ("net: mvpp2: cls: Add Classification offload support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The "rss_context" variable comes from the user via ethtool_get_rxfh().
It can be any u32 value except zero. Eventually it gets passed to
mvpp22_rss_ctx() and if it is over MVPP22_N_RSS_TABLES (8) then it
results in an array overflow.
Fixes: 895586d5dc ("net: mvpp2: cls: Use RSS contexts to handle RSS tables")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We added fields in tcp_zerocopy_receive structure,
so make sure to clear all fields to not pass garbage to the kernel.
We were lucky because recent additions added 'out' parameters,
still we need to clean our reference implementation, before folks
copy/paste it.
Fixes: c8856c0514 ("tcp-zerocopy: Return inq along with tcp receive zerocopy.")
Fixes: 33946518d4 ("tcp-zerocopy: Return sk_err (if set) along with tcp receive zerocopy.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Arjun Roy <arjunroy@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull crypto fixes from Herbert Xu:
"This fixes a potential scheduling latency problem for the algorithms
used by WireGuard"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: arch/nhpoly1305 - process in explicit 4k chunks
crypto: arch/lib - limit simd usage to 4k chunks
* Avoid loading asus-nb-wmi module on selected laptop models
* Fix S0ix debug support for Jasper Lake PMC
* Few fixes which have been reported by Hulk bot and others
The following is an automated git shortlog grouped by driver:
asus-nb-wmi:
- Do not load on Asus T100TA and T200TA
intel_pmc_core:
- avoid unused-function warnings
- Change Jasper Lake S0ix debug reg map back to ICL
platform/x86/intel-uncore-freq:
- make uncore_root_kobj static
surface3_power:
- Fix a NULL vs IS_ERR() check in probe
thinkpad_acpi:
- Remove always false 'value < 0' statement
wmi:
- Make two functions static
-----BEGIN PGP SIGNATURE-----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=u8gZ
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v5.7-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Andy Shevchenko:
- Avoid loading asus-nb-wmi module on selected laptop models
- Fix S0ix debug support for Jasper Lake PMC
- Few fixes which have been reported by Hulk bot and others
* tag 'platform-drivers-x86-v5.7-2' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: thinkpad_acpi: Remove always false 'value < 0' statement
platform/x86: intel_pmc_core: avoid unused-function warnings
platform/x86: asus-nb-wmi: Do not load on Asus T100TA and T200TA
platform/x86: intel_pmc_core: Change Jasper Lake S0ix debug reg map back to ICL
platform/x86/intel-uncore-freq: make uncore_root_kobj static
platform/x86: wmi: Make two functions static
platform/x86: surface3_power: Fix a NULL vs IS_ERR() check in probe
When a new neighbor entry has been added, event is generated but it does not
include protocol, because its value is assigned after the event notification
routine has run, so move protocol assignment code earlier.
Fixes: df9b0e30d4 ("neighbor: Add protocol attribute")
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit d7a5502b0b ("net: broadcom: convert to
devm_platform_ioremap_resource_byname()") will broke this driver.
idm_base and nicpm_base were optional, after this change, they are
mandatory. it will probe fails with -22 when the dtb doesn't have them
defined. so revert part of this commit and make idm_base and nicpm_base
as optional.
Fixes: d7a5502b0b ("net: broadcom: convert to devm_platform_ioremap_resource_byname()")
Reported-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Cc: Scott Branden <scott.branden@broadcom.com>
Cc: Ray Jui <ray.jui@broadcom.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since 'value' is declared as unsigned long, the following statement is
always false.
value < 0
So let's remove it.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
When both CONFIG_DEBUG_FS and CONFIG_PM_SLEEP are disabled, the
functions that got moved out of the #ifdef section now cause
a warning:
drivers/platform/x86/intel_pmc_core.c:654:13: error: 'pmc_core_lpm_display' defined but not used [-Werror=unused-function]
654 | static void pmc_core_lpm_display(struct pmc_dev *pmcdev, struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~
drivers/platform/x86/intel_pmc_core.c:617:13: error: 'pmc_core_slps0_display' defined but not used [-Werror=unused-function]
617 | static void pmc_core_slps0_display(struct pmc_dev *pmcdev, struct device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~
Rather than add even more #ifdefs here, remove them entirely and
let the compiler work it out, it can actually get rid of all the
debugfs calls without problems as long as the struct member is
there.
The two PM functions just need a __maybe_unused annotations to avoid
another warning instead of the #ifdef.
Fixes: aae43c2bcd ("platform/x86: intel_pmc_core: Relocate pmc_core_*_display() to outside of CONFIG_DEBUG_FS")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
asus-nb-wmi does not add any extra functionality on these Asus
Transformer books. They have detachable keyboards, so the hotkeys are
send through a HID device (and handled by the hid-asus driver) and also
the rfkill functionality is not used on these devices.
Besides not adding any extra functionality, initializing the WMI interface
on these devices actually has a negative side-effect. For some reason
the \_SB.ATKD.INIT() function which asus_wmi_platform_init() calls drives
GPO2 (INT33FC:02) pin 8, which is connected to the front facing webcam LED,
high and there is no (WMI or other) interface to drive this low again
causing the LED to be permanently on, even during suspend.
This commit adds a blacklist of DMI system_ids on which not to load the
asus-nb-wmi and adds these Transformer books to this list. This fixes
the webcam LED being permanently on under Linux.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Jasper Lake uses Icelake PCH IPs and the S0ix debug interfaces are same as
Icelake. It uses SLP_S0_DBG register latch/read interface from Icelake
generation. It doesn't use Tiger Lake LPM debug registers. Change the
Jasper Lake S0ix debug interface to use the ICL reg map.
Fixes: 16292bed9c ("platform/x86: intel_pmc_core: Add Atom based Jasper Lake (JSL) platform support")
Signed-off-by: Archana Patni <archana.patni@intel.com>
Acked-by: David E. Box <david.e.box@intel.com>
Tested-by: Divagar Mohandass <divagar.mohandass@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Pull HID fixes from Jiri Kosina:
- Wacom driver functional and regression fixes from Jason Gerecke
- race condition fix in usbhid, found by syzbot and fixed by Alan Stern
- a few device-specific quirks and ID additions
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: quirks: Add HID_QUIRK_NO_INIT_REPORTS quirk for Dell K12A keyboard-dock
HID: mcp2221: add gpiolib dependency
HID: i2c-hid: reset Synaptics SYNA2393 on resume
HID: wacom: Report 2nd-gen Intuos Pro S center button status over BT
HID: usbhid: Fix race between usbhid_close() and usbhid_stop()
Revert "HID: wacom: generic: read the number of expected touches on a per collection basis"
HID: alps: ALPS_1657 is too specific; use U1_UNICORN_LEGACY instead
HID: alps: Add AUI1657 device ID
HID: logitech: Add support for Logitech G11 extra keys
HID: multitouch: add eGalaxTouch P80H84 support
HID: wacom: Read HID_DG_CONTACTMAX directly for non-generic devices
In function nfp_abm_vnic_set_mac, pointer nsp is allocated by nfp_nsp_open.
But when nfp_nsp_has_hwinfo_lookup fail, the pointer is not released,
which can lead to a memory leak bug. Fix this issue by adding
nfp_nsp_close(nsp) in the error path.
Fixes: f6e71efdf9 ("nfp: abm: look up MAC addresses via management FW")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gengming reported a UAF in lec_arp_clear_vccs(),
where we add a vcc socket to an entry in a per-device
list but free the socket without removing it from the
list when vcc->dev is NULL.
We need to call lec_vcc_close() to search and remove
those entries contain the vcc being destroyed. This can
be done by calling vcc->push(vcc, NULL) unconditionally
in vcc_destroy_socket().
Another issue discovered by Gengming's reproducer is
the vcc->dev may point to the static device lecatm_dev,
for which we don't need to register/unregister device,
so we can just check for vcc->dev->ops->owner.
Reported-by: Gengming Liu <l.dmxcsnsbh@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The multiplication of cfg->ctr[1] by 1000000000 is performed using a
32 bit multiplication (since cfg->ctr[1] is a u32) and this can lead
to a potential overflow. Fix this by making the constant a ULL to
ensure a 64 bit multiply occurs.
Fixes: 504723af0d ("net: stmmac: Add basic EST support for GMAC5+")
Addresses-Coverity: ("Unintentional integer overflow")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we tell kernel to dump filters from root (ffff:ffff),
those filters on ingress (ffff:0000) are matched, but their
true parents must be dumped as they are. However, kernel
dumps just whatever we tell it, that is either ffff:ffff
or ffff:0000:
$ nl-cls-list --dev=dummy0 --parent=root
cls basic dev dummy0 id none parent root prio 49152 protocol ip match-all
cls basic dev dummy0 id :1 parent root prio 49152 protocol ip match-all
$ nl-cls-list --dev=dummy0 --parent=ffff:
cls basic dev dummy0 id none parent ffff: prio 49152 protocol ip match-all
cls basic dev dummy0 id :1 parent ffff: prio 49152 protocol ip match-all
This is confusing and misleading, more importantly this is
a regression since 4.15, so the old behavior must be restored.
And, when tc filters are installed on a tc class, the parent
should be the classid, rather than the qdisc handle. Commit
edf6711c98 ("net: sched: remove classid and q fields from tcf_proto")
removed the classid we save for filters, we can just restore
this classid in tcf_block.
Steps to reproduce this:
ip li set dev dummy0 up
tc qd add dev dummy0 ingress
tc filter add dev dummy0 parent ffff: protocol arp basic action pass
tc filter show dev dummy0 root
Before this patch:
filter protocol arp pref 49152 basic
filter protocol arp pref 49152 basic handle 0x1
action order 1: gact action pass
random type none pass val 0
index 1 ref 1 bind 1
After this patch:
filter parent ffff: protocol arp pref 49152 basic
filter parent ffff: protocol arp pref 49152 basic handle 0x1
action order 1: gact action pass
random type none pass val 0
index 1 ref 1 bind 1
Fixes: a10fa20101 ("net: sched: propagate q and parent from caller down to tcf_fill_node")
Fixes: edf6711c98 ("net: sched: remove classid and q fields from tcf_proto")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc-10 warns about functions that return a pointer to a stack
variable. In chcr_write_cpl_set_tcb_ulp(), this does not actually
happen, but it's too hard to see for the compiler:
drivers/crypto/chelsio/chcr_ktls.c: In function 'chcr_write_cpl_set_tcb_ulp.constprop':
drivers/crypto/chelsio/chcr_ktls.c:760:9: error: function may return address of local variable [-Werror=return-local-addr]
760 | return pos;
| ^~~
drivers/crypto/chelsio/chcr_ktls.c:712:5: note: declared here
712 | u8 buf[48] = {0};
| ^~~
Split the middle part of the function out into a helper to make
it easier to understand by both humans and compilers, which avoids
the warning.
Fixes: 5a4b9fe7fe ("cxgb4/chcr: complete record tx handling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
With the introduction of TX coalescing, .ndo_start_xmit now potentially
starts the TX completion timer. So only kill the timer _after_ TX has
been disabled.
Fixes: ee1e52d1e4 ("s390/qeth: add TX IRQ coalescing support for IQD devices")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A couple of bug fixes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl6vmuYPHG1zdEByZWRo
YXQuY29tAAoJECgfDbjSjVRp9n0H/3jlNn/NTaSpvHJUSfVl6jQRDXvfaDFRCjWO
30ueh+R+k0LnaL33XvWGLmfB0nQjnymYWhZT8MXwIG0iZUVDEMaiF3GV9SP+Ss6L
iDokQT3Xhc+bP3PC/kk/PFkrJFmkJHi6M5j6jSRhbWR/Krxy5+eveNlaD9W3cbY0
tMw61WZ+IyhTmBV6u79A8arjCu8ihTVX7EPCcQ4ZcWWpBmKYtXPoDj22ZsoB4IJK
cYM6XYmbnQ3ZTyL7EbgONgo8UvdkN2LN9L7CkdRVRrzMqWKkbJ3vbjanTtN+uOKA
ZRSuw10dfgzBF3Gl/8kRF2UASXpMQHaR5fiLjC4V2D1A65+F2aU=
=Ow6r
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"A couple of bug fixes"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost: vsock: kick send_pkt worker once device is started
virtio-blk: handle block_device_operations callbacks after hot unplug
the related system resources were not released when enetc_hw_alloc()
return error in the enetc_pci_mdio_probe(), add iounmap() for error
handling label "err_hw_alloc" to fix it.
Fixes: 6517798dd3 ("enetc: Make MDIO accessors more generic and export to include/linux/fsl")
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Delalande