Commit Graph

865379 Commits

Author SHA1 Message Date
Jason A. Donenfeld ca7a03c417 ipv6: do not free rt if FIB_LOOKUP_NOREF is set on suppress rule
Commit 7d9e5f4221 removed references from certain dsts, but accounting
for this never translated down into the fib6 suppression code. This bug
was triggered by WireGuard users who use wg-quick(8), which uses the
"suppress-prefix" directive to ip-rule(8) for routing all of their
internet traffic without routing loops. The test case added here
causes the reference underflow by causing packets to evaluate a suppress
rule.

Fixes: 7d9e5f4221 ("ipv6: convert major tx path to use RT6_LOOKUP_F_DST_NOREF")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:34:25 +02:00
Li RongQing ea8564c865 openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC
userspace openvswitch patch "(dpif-linux: Implement the API
functions to allow multiple handler threads read upcall)"
changes its type from U32 to UNSPEC, but leave the kernel
unchanged

and after kernel 6e237d099f "(netlink: Relax attr validation
for fixed length types)", this bug is exposed by the below
warning

	[   57.215841] netlink: 'ovs-vswitchd': attribute type 5 has an invalid length.

Fixes: 5cd667b0a4 ("openvswitch: Allow each vport to have an array of 'port_id's")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:32:33 +02:00
Biju Das c1d419d004 dt-bindings: net: ravb: Add support for r8a774b1 SoC
Document RZ/G2N (R8A774B1) SoC bindings.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:30:13 +02:00
Thierry Reding 4f28bd956e net: stmmac: Fix page pool size
The size of individual pages in the page pool in given by an order. The
order is the binary logarithm of the number of pages that make up one of
the pages in the pool. However, the driver currently passes the number
of pages rather than the order, so it ends up wasting quite a bit of
memory.

Fix this by taking the binary logarithm and passing that in the order
field.

Fixes: 2af6106ae9 ("net: stmmac: Introducing support for Page Pool")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:27:47 +02:00
Xin Long ba56d8ce38 macsec: drop skb sk before calling gro_cells_receive
Fei Liu reported a crash when doing netperf on a topo of macsec
dev over veth:

  [  448.919128] refcount_t: underflow; use-after-free.
  [  449.090460] Call trace:
  [  449.092895]  refcount_sub_and_test+0xb4/0xc0
  [  449.097155]  tcp_wfree+0x2c/0x150
  [  449.100460]  ip_rcv+0x1d4/0x3a8
  [  449.103591]  __netif_receive_skb_core+0x554/0xae0
  [  449.108282]  __netif_receive_skb+0x28/0x78
  [  449.112366]  netif_receive_skb_internal+0x54/0x100
  [  449.117144]  napi_gro_complete+0x70/0xc0
  [  449.121054]  napi_gro_flush+0x6c/0x90
  [  449.124703]  napi_complete_done+0x50/0x130
  [  449.128788]  gro_cell_poll+0x8c/0xa8
  [  449.132351]  net_rx_action+0x16c/0x3f8
  [  449.136088]  __do_softirq+0x128/0x320

The issue was caused by skb's true_size changed without its sk's
sk_wmem_alloc increased in tcp/skb_gro_receive(). Later when the
skb is being freed and the skb's truesize is subtracted from its
sk's sk_wmem_alloc in tcp_wfree(), underflow occurs.

macsec is calling gro_cells_receive() to receive a packet, which
actually requires skb->sk to be NULL. However when macsec dev is
over veth, it's possible the skb->sk is still set if the skb was
not unshared or expanded from the peer veth.

ip_rcv() is calling skb_orphan() to drop the skb's sk for tproxy,
but it is too late for macsec's calling gro_cells_receive(). So
fix it by dropping the skb's sk earlier on rx path of macsec.

Fixes: 5491e7c6b1 ("macsec: enable GRO and RPS on macsec devices")
Reported-by: Xiumei Mu <xmu@redhat.com>
Reported-by: Fei Liu <feliu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:25:03 +02:00
David S. Miller 2dbf45d135 mlx5-fixes-2019-09-24
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Merge tag 'mlx5-fixes-2019-09-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2019-09-24

This series introduces some fixes to mlx5 driver.
For more information please see tag log below.

Please pull and let me know if there is any problem.

For -stable v4.20:
 ('net/mlx5e: Fix traffic duplication in ethtool steering')

For -stable v4.19:
 ('net/mlx5: Add device ID of upcoming BlueField-2')

For -stable v5.3:
 ('net/mlx5e: Fix matching on tunnel addresses type')
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:08:18 +02:00
Jason A. Donenfeld adecda5bee net: print proper warning on dst underflow
Proper warnings with stack traces make it much easier to figure out
what's doing the double free and create more meaningful bug reports from
users.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:05:56 +02:00
Vinicius Costa Gomes 3e8b9bfa11 net/sched: cbs: Fix not adding cbs instance to list
When removing a cbs instance when offloading is enabled, the crash
below can be observed.

The problem happens because that when offloading is enabled, the cbs
instance is not added to the list.

Also, the current code doesn't handle correctly the case when offload
is disabled without removing the qdisc: if the link speed changes the
credit calculations will be wrong. When we create the cbs instance
with offloading enabled, it's not added to the notification list, when
later we disable offloading, it's not in the list, so link speed
changes will not affect it.

The solution for both issues is the same, add the cbs instance being
created unconditionally to the global list, even if the link state
notification isn't useful "right now".

Crash log:

[518758.189866] BUG: kernel NULL pointer dereference, address: 0000000000000000
[518758.189870] #PF: supervisor read access in kernel mode
[518758.189871] #PF: error_code(0x0000) - not-present page
[518758.189872] PGD 0 P4D 0
[518758.189874] Oops: 0000 [#1] SMP PTI
[518758.189876] CPU: 3 PID: 4825 Comm: tc Not tainted 5.2.9 #1
[518758.189877] Hardware name: Gigabyte Technology Co., Ltd. Z390 AORUS ULTRA/Z390 AORUS ULTRA-CF, BIOS F7 03/14/2019
[518758.189881] RIP: 0010:__list_del_entry_valid+0x29/0xa0
[518758.189883] Code: 90 48 b8 00 01 00 00 00 00 ad de 55 48 8b 17 4c 8b 47 08 48 89 e5 48 39 c2 74 27 48 b8 00 02 00 00 00 00 ad de 49 39 c0 74 2d <49> 8b 30 48 39 fe 75 3d 48 8b 52 08 48 39 f2 75 4c b8 01 00 00 00
[518758.189885] RSP: 0018:ffffa27e43903990 EFLAGS: 00010207
[518758.189887] RAX: dead000000000200 RBX: ffff8bce69f0f000 RCX: 0000000000000000
[518758.189888] RDX: 0000000000000000 RSI: ffff8bce69f0f064 RDI: ffff8bce69f0f1e0
[518758.189890] RBP: ffffa27e43903990 R08: 0000000000000000 R09: ffff8bce69e788c0
[518758.189891] R10: ffff8bce62acd400 R11: 00000000000003cb R12: ffff8bce69e78000
[518758.189892] R13: ffff8bce69f0f140 R14: 0000000000000000 R15: 0000000000000000
[518758.189894] FS:  00007fa1572c8f80(0000) GS:ffff8bce6e0c0000(0000) knlGS:0000000000000000
[518758.189895] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[518758.189896] CR2: 0000000000000000 CR3: 000000040a398006 CR4: 00000000003606e0
[518758.189898] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[518758.189899] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[518758.189900] Call Trace:
[518758.189904]  cbs_destroy+0x32/0xa0 [sch_cbs]
[518758.189906]  qdisc_destroy+0x45/0x120
[518758.189907]  qdisc_put+0x25/0x30
[518758.189908]  qdisc_graft+0x2c1/0x450
[518758.189910]  tc_get_qdisc+0x1c8/0x310
[518758.189912]  ? get_page_from_freelist+0x91a/0xcb0
[518758.189914]  rtnetlink_rcv_msg+0x293/0x360
[518758.189916]  ? kmem_cache_alloc_node_trace+0x178/0x260
[518758.189918]  ? __kmalloc_node_track_caller+0x38/0x50
[518758.189920]  ? rtnl_calcit.isra.0+0xf0/0xf0
[518758.189922]  netlink_rcv_skb+0x48/0x110
[518758.189923]  rtnetlink_rcv+0x10/0x20
[518758.189925]  netlink_unicast+0x15b/0x1d0
[518758.189926]  netlink_sendmsg+0x1ea/0x380
[518758.189929]  sock_sendmsg+0x2f/0x40
[518758.189930]  ___sys_sendmsg+0x295/0x2f0
[518758.189932]  ? ___sys_recvmsg+0x151/0x1e0
[518758.189933]  ? do_wp_page+0x7e/0x450
[518758.189935]  __sys_sendmsg+0x48/0x80
[518758.189937]  __x64_sys_sendmsg+0x1a/0x20
[518758.189939]  do_syscall_64+0x53/0x1f0
[518758.189941]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[518758.189942] RIP: 0033:0x7fa15755169a
[518758.189944] Code: 48 c7 c0 ff ff ff ff eb be 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 18 b8 2e 00 00 00 c5 fc 77 0f 05 <48> 3d 00 f0 ff ff 77 5e c3 0f 1f 44 00 00 48 83 ec 28 89 54 24 1c
[518758.189946] RSP: 002b:00007ffda58b60b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[518758.189948] RAX: ffffffffffffffda RBX: 000055e4b836d9a0 RCX: 00007fa15755169a
[518758.189949] RDX: 0000000000000000 RSI: 00007ffda58b6128 RDI: 0000000000000003
[518758.189951] RBP: 00007ffda58b6190 R08: 0000000000000001 R09: 000055e4b9d848a0
[518758.189952] R10: 0000000000000000 R11: 0000000000000246 R12: 000000005d654b49
[518758.189953] R13: 0000000000000000 R14: 00007ffda58b6230 R15: 00007ffda58b6210
[518758.189955] Modules linked in: sch_cbs sch_etf sch_mqprio netlink_diag unix_diag e1000e igb intel_pch_thermal thermal video backlight pcc_cpufreq
[518758.189960] CR2: 0000000000000000
[518758.189961] ---[ end trace 6a13f7aaf5376019 ]---
[518758.189963] RIP: 0010:__list_del_entry_valid+0x29/0xa0
[518758.189964] Code: 90 48 b8 00 01 00 00 00 00 ad de 55 48 8b 17 4c 8b 47 08 48 89 e5 48 39 c2 74 27 48 b8 00 02 00 00 00 00 ad de 49 39 c0 74 2d <49> 8b 30 48 39 fe 75 3d 48 8b 52 08 48 39 f2 75 4c b8 01 00 00 00
[518758.189967] RSP: 0018:ffffa27e43903990 EFLAGS: 00010207
[518758.189968] RAX: dead000000000200 RBX: ffff8bce69f0f000 RCX: 0000000000000000
[518758.189969] RDX: 0000000000000000 RSI: ffff8bce69f0f064 RDI: ffff8bce69f0f1e0
[518758.189971] RBP: ffffa27e43903990 R08: 0000000000000000 R09: ffff8bce69e788c0
[518758.189972] R10: ffff8bce62acd400 R11: 00000000000003cb R12: ffff8bce69e78000
[518758.189973] R13: ffff8bce69f0f140 R14: 0000000000000000 R15: 0000000000000000
[518758.189975] FS:  00007fa1572c8f80(0000) GS:ffff8bce6e0c0000(0000) knlGS:0000000000000000
[518758.189976] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[518758.189977] CR2: 0000000000000000 CR3: 000000040a398006 CR4: 00000000003606e0
[518758.189979] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[518758.189980] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Fixes: e0a7683d30 ("net/sched: cbs: fix port_rate miscalculation")
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 09:03:03 +02:00
Krzysztof Kozlowski 02bc5eb990 drivers: net: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
    $ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 08:56:17 +02:00
Krzysztof Kozlowski bf69abad27 net: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
    $ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 08:56:17 +02:00
Rain River 34b7bb2995 MAINTAINERS: add Yanjun to FORCEDETH maintainers list
Yanjun has been spending quite a lot of time fixing bugs
in FORCEDETH source code. I'd like to add Yanjun to maintainers
list.

Signed-off-by: Rain River <rain.1986.08.12@gmail.com>
Acked-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26 08:51:21 +02:00
Shubhrajyoti Datta 99dcb8432a net: macb: Remove dead code
macb_64b_desc is always called when HW_DMA_CAP_64B is defined.
So the return NULL can never be reached. Remove the dead code.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:59:43 +02:00
Jose Abreu b0ce902feb net: stmmac: selftests: Flow Control test can also run with ASYM Pause
The Flow Control selftest is also available with ASYM Pause. Lets add
this check to the test and fix eventual false positive failures.

Fixes: 091810dbde ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:58:25 +02:00
YueHaibing 9f5c44cf61 gianfar: Make reset_gfar static
Fix sparse warning:

drivers/net/ethernet/freescale/gianfar.c:2070:6:
 warning: symbol 'reset_gfar' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:56:41 +02:00
Colin Ian King 5c94ad1793 atm: he: clean up an indentation issue
There is a statement that is indented one level too many, remove
the extraneous tab.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:54:45 +02:00
Takeshi Misawa 4c247de564 ppp: Fix memory leak in ppp_write
When ppp is closing, __ppp_xmit_process() failed to enqueue skb
and skb allocated in ppp_write() is leaked.

syzbot reported :
BUG: memory leak
unreferenced object 0xffff88812a17bc00 (size 224):
  comm "syz-executor673", pid 6952, jiffies 4294942888 (age 13.040s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000d110fff9>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<00000000d110fff9>] slab_post_alloc_hook mm/slab.h:522 [inline]
    [<00000000d110fff9>] slab_alloc_node mm/slab.c:3262 [inline]
    [<00000000d110fff9>] kmem_cache_alloc_node+0x163/0x2f0 mm/slab.c:3574
    [<000000002d616113>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:197
    [<000000000167fc45>] alloc_skb include/linux/skbuff.h:1055 [inline]
    [<000000000167fc45>] ppp_write+0x48/0x120 drivers/net/ppp/ppp_generic.c:502
    [<000000009ab42c0b>] __vfs_write+0x43/0xa0 fs/read_write.c:494
    [<00000000086b2e22>] vfs_write fs/read_write.c:558 [inline]
    [<00000000086b2e22>] vfs_write+0xee/0x210 fs/read_write.c:542
    [<00000000a2b70ef9>] ksys_write+0x7c/0x130 fs/read_write.c:611
    [<00000000ce5e0fdd>] __do_sys_write fs/read_write.c:623 [inline]
    [<00000000ce5e0fdd>] __se_sys_write fs/read_write.c:620 [inline]
    [<00000000ce5e0fdd>] __x64_sys_write+0x1e/0x30 fs/read_write.c:620
    [<00000000d9d7b370>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:296
    [<0000000006e6d506>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fix this by freeing skb, if ppp is closing.

Fixes: 6d066734e9 ("ppp: avoid loop in xmit recursion detection code")
Reported-and-tested-by: syzbot+d9c8bf24e56416d7ce2c@syzkaller.appspotmail.com
Signed-off-by: Takeshi Misawa <jeliantsurux@gmail.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Tested-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:45:03 +02:00
David S. Miller 8875cf9c7c Merge branch 'ibmvnic-serialization-fixes'
Juliet Kim says:

====================
net/ibmvnic: serialization fixes

This series includes two fixes. The first improves reset code to allow
linkwatch_event to proceed during reset. The second ensures that no more
than one thread runs in reset at a time.

v2:
- Separate change param reset from do_reset()
- Return IBMVNIC_OPEN_FAILED if __ibmvnic_open fails
- Remove setting wait_for_reset to false from __ibmvnic_reset(), this
  is done in wait_for_reset()
- Move the check for force_reset_recovery from patch 1 to patch 2

v3:
- Restore reset’s successful return in open failure case

v4:
- Change resetting flag access to atomic
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:41:41 +02:00
Juliet Kim 7ed5b31f4a net/ibmvnic: prevent more than one thread from running in reset
The current code allows more than one thread to run in reset. This can
corrupt struct adapter data. Check adapter->resetting before performing
a reset, if there is another reset running delay (100 msec) before trying
again.

Signed-off-by: Juliet Kim <julietk@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:41:41 +02:00
Juliet Kim b27507bb59 net/ibmvnic: unlock rtnl_lock in reset so linkwatch_event can run
Commit a5681e20b5 ("net/ibmnvic: Fix deadlock problem in reset")
made the change to hold the RTNL lock during a reset to avoid deadlock
but linkwatch_event is fired during the reset and needs the RTNL lock.
That keeps linkwatch_event process from proceeding until the reset
is complete. The reset process cannot tolerate the linkwatch_event
processing after reset completes, so release the RTNL lock during the
process to allow a chance for linkwatch_event to run during reset.
This does not guarantee that the linkwatch_event will be processed as
soon as link state changes, but is an improvement over the current code
where linkwatch_event processing is always delayed, which prevents
transmissions on the device from being deactivated leading transmit
watchdog timer to time-out.

Release the RTNL lock before link state change and re-acquire after
the link state change to allow linkwatch_event to grab the RTNL lock
and run during the reset.

Fixes: a5681e20b5 ("net/ibmnvic: Fix deadlock problem in reset")
Signed-off-by: Juliet Kim <julietk@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25 13:41:41 +02:00
Stephen Hemminger 5aafeb74b5 skge: fix checksum byte order
Running old skge driver on PowerPC causes checksum errors
because hardware reported 1's complement checksum is in little-endian
byte order.

Reported-by: Benoit <benoit.sansoni@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:53:19 +02:00
Uwe Kleine-König 02a0704683 arcnet: provide a buffer big enough to actually receive packets
struct archdr is only big enough to hold the header of various types of
arcnet packets. So to provide enough space to hold the data read from
hardware provide a buffer large enough to hold a packet with maximal
size.

The problem was noticed by the stack protector which makes the kernel
oops.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:48:31 +02:00
David S. Miller 0edc3f703f Merge branch 'check-CAP_NEW_RAW'
Greg Kroah-Hartman says:

====================
Raw socket cleanups

Ori Nimron pointed out that there are a number of places in the kernel
where you can create a raw socket, without having to have the
CAP_NET_RAW permission.

To resolve this, here's a short patch series to test these odd and old
protocols for this permission before allowing the creation to succeed

All patches are currently against the net tree.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:37:18 +02:00
Ori Nimron 3a359798b1 nfc: enforce CAP_NET_RAW for raw sockets
When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked
first.

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:37:18 +02:00
Ori Nimron e69dbd4619 ieee802154: enforce CAP_NET_RAW for raw sockets
When creating a raw AF_IEEE802154 socket, CAP_NET_RAW needs to be
checked first.

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:37:18 +02:00
Ori Nimron 0614e2b737 ax25: enforce CAP_NET_RAW for raw sockets
When creating a raw AF_AX25 socket, CAP_NET_RAW needs to be checked
first.

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:37:18 +02:00
Ori Nimron 6cc03e8aa3 appletalk: enforce CAP_NET_RAW for raw sockets
When creating a raw AF_APPLETALK socket, CAP_NET_RAW needs to be checked
first.

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:37:18 +02:00
Ori Nimron b91ee4aa2a mISDN: enforce CAP_NET_RAW for raw sockets
When creating a raw AF_ISDN socket, CAP_NET_RAW needs to be checked
first.

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:37:18 +02:00
Eric Dumazet 3d66b89c30 net: sched: fix possible crash in tcf_action_destroy()
If the allocation done in tcf_exts_init() failed,
we end up with a NULL pointer in exts->actions.

kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8198 Comm: syz-executor.3 Not tainted 5.3.0-rc8+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tcf_action_destroy+0x71/0x160 net/sched/act_api.c:705
Code: c3 08 44 89 ee e8 4f cb bb fb 41 83 fd 20 0f 84 c9 00 00 00 e8 c0 c9 bb fb 48 89 d8 48 b9 00 00 00 00 00 fc ff df 48 c1 e8 03 <80> 3c 08 00 0f 85 c0 00 00 00 4c 8b 33 4d 85 f6 0f 84 9d 00 00 00
RSP: 0018:ffff888096e16ff0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000040000 RSI: ffffffff85b6ab30 RDI: 0000000000000000
RBP: ffff888096e17020 R08: ffff8880993f6140 R09: fffffbfff11cae67
R10: fffffbfff11cae66 R11: ffffffff88e57333 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888096e177a0 R15: 0000000000000001
FS:  00007f62bc84a700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000758040 CR3: 0000000088b64000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tcf_exts_destroy+0x38/0xb0 net/sched/cls_api.c:3030
 tcindex_set_parms+0xf7f/0x1e50 net/sched/cls_tcindex.c:488
 tcindex_change+0x230/0x318 net/sched/cls_tcindex.c:519
 tc_new_tfilter+0xa4b/0x1c70 net/sched/cls_api.c:2152
 rtnetlink_rcv_msg+0x838/0xb00 net/core/rtnetlink.c:5214
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5241
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2311
 __sys_sendmmsg+0x1bf/0x4d0 net/socket.c:2413
 __do_sys_sendmmsg net/socket.c:2442 [inline]

Fixes: 90b73b77d0 ("net: sched: change action API to use array of pointers to actions")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24 16:33:57 +02:00
Dmytro Linkin fe1587a7de net/mlx5e: Fix matching on tunnel addresses type
In mlx5 parse_tunnel_attr() function dispatch on encap IP address type
is performed by directly checking flow_rule_match_key() on
FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, and then on
FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS. However, since those are stored in
union, first check is always true if any type of encap address is set,
which leads to IPv6 tunnel encap address being parsed as IPv4 by mlx5.
Determine correct IP address type by checking control key first and if
it set, take address type from match.key->addr_type.

Fixes: d1bda7eecd ("net/mlx5e: Allow matching only enc_key_id/enc_dst_port for decapsulation action")
Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-24 12:38:08 +03:00
Saeed Mahameed d22fcc806b net/mlx5e: Fix traffic duplication in ethtool steering
Before this patch, when adding multiple ethtool steering rules with
identical classification, the driver used to append the new destination
to the already existing hw rule, which caused the hw to forward the
traffic to all destinations (rx queues).

Here we avoid this by setting the "no append" mlx5 fs core flag when
adding a new ethtool rule.

Fixes: 6dc6071cfc ("net/mlx5e: Add ethtool flow steering support")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-24 12:38:08 +03:00
Bodong Wang d19a79ee38 net/mlx5: Add device ID of upcoming BlueField-2
Add the device ID of upcoming BlueField-2 integrated ConnectX-6 Dx
network controller. Its VFs will be using the generic VF device ID:
0x101e "ConnectX Family mlx5Gen Virtual Function".

Fixes: 2e9d3e83ab ("net/mlx5: Update the list of the PCI supported devices")
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-24 12:38:07 +03:00
Alaa Hleihel 640bdb1fdb net/mlx5: DR, Allow matching on vport based on vhca_id
In case source_eswitch_owner_vhca_id is given as a match,
the source_vport (vhca_id) will be set in case vhca_id_valid.

This will allow matching on peer vports, vports that belong
to the other pf.

Fixes: 26d688e33f ("net/mlx5: DR, Add Steering entry (STE) utilities")
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-24 12:38:07 +03:00
Alex Vesker 48cbde4bd2 net/mlx5: DR, Fix getting incorrect prev node in ste_free
When we free an STE and the STE is in the middle of collision
list, the prev_ste was obtained incorrectly from the list.
To avoid such issues list_entry calls replaced with standard list API.

Fixes: 26d688e33f ("net/mlx5: DR, Add Steering entry (STE) utilities")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-24 12:38:07 +03:00
Alex Vesker cc5fd15fc5 net/mlx5: DR, Remove redundant vport number from action
The vport number is part of the vport_cap, there is no reason
to store in a separate variable on the vport.

Fixes: 9db810ed2d ("net/mlx5: DR, Expose steering action functionality")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-24 12:38:07 +03:00
Yevgeny Kliteynik d32d7c52e0 net/mlx5: DR, Fix SW steering HW bits and definitions
Fix wrong reserved bits offsets.

Fixes: 97b5484ed6 ("net/mlx5: Add HW bits and definitions required for SW steering")
Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-24 12:38:06 +03:00
Nishad Kamdar 34b4688425 net: dsa: Use the correct style for SPDX License Identifier
This patch corrects the SPDX License Identifier style
in header file for Distributed Switch Architecture drivers.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used)

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-22 15:25:08 -07:00
Nishad Kamdar 938e4d49c2 net: dsa: b53: Use the correct style for SPDX License Identifier
This patch corrects the SPDX License Identifier style
in header file for Broadcom BCM53xx managed switch driver.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used)

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-22 15:24:51 -07:00
Dan Carpenter 73a63ee995 ionic: Fix an error code in ionic_lif_alloc()
We need to set the error code on this path.  Otherwise it probably
results in a NULL dereference down the line.

Fixes: aa3198819b ("ionic: Add RSS support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-22 14:16:15 -07:00
Mao Wenan ff04cfbaa2 net: ena: Select DIMLIB for ENA_ETHERNET
If CONFIG_ENA_ETHERNET=y and CONFIG_DIMLIB=n,
below erros can be found:
drivers/net/ethernet/amazon/ena/ena_netdev.o: In function `ena_dim_work':
ena_netdev.c:(.text+0x21cc): undefined reference to `net_dim_get_rx_moderation'
ena_netdev.c:(.text+0x21cc): relocation truncated to
fit: R_AARCH64_CALL26 against undefined symbol `net_dim_get_rx_moderation'
drivers/net/ethernet/amazon/ena/ena_netdev.o: In function `ena_io_poll':
ena_netdev.c:(.text+0x7bd4): undefined reference to `net_dim'
ena_netdev.c:(.text+0x7bd4): relocation truncated to fit:
R_AARCH64_CALL26 against undefined symbol `net_dim'

After commit 282faf61a0 ("net: ena: switch to dim algorithm for rx adaptive
interrupt moderation"), it introduces dim algorithm, which configured by CONFIG_DIMLIB.
So, this patch is to select DIMLIB for ENA_ETHERNET.

Fixes: 282faf61a0 ("net: ena: switch to dim algorithm for rx adaptive interrupt moderation")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-22 14:05:18 -07:00
Christophe JAILLET 24ccb0ab95 qede: qede_fp: simplify a bit 'qede_rx_build_skb()'
Use 'skb_put_data()' instead of rewritting it.
This improves readability.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 20:15:03 -07:00
Arnd Bergmann b6b6cc9acd net: stmmac: selftest: avoid large stack usage
Putting a struct stmmac_rss object on the stack is a bad idea,
as it exceeds the warning limit for a stack frame on 32-bit architectures:

drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c:1221:12: error: stack frame size of 1208 bytes in function '__stmmac_test_l3filt' [-Werror,-Wframe-larger-than=]
drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c:1338:12: error: stack frame size of 1208 bytes in function '__stmmac_test_l4filt' [-Werror,-Wframe-larger-than=]

As the object is the trivial empty case, change the called function
to accept a NULL pointer to mean the same thing and remove the
large variable in the two callers.

Fixes: 4647e02119 ("net: stmmac: selftests: Add selftest for L3/L4 Filters")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 19:46:14 -07:00
Mao Wenan a8d570de0c net: dsa: sja1105: Add dependency for NET_DSA_SJA1105_TAS
If CONFIG_NET_DSA_SJA1105_TAS=y and CONFIG_NET_SCH_TAPRIO=n,
below error can be found:
drivers/net/dsa/sja1105/sja1105_tas.o: In function `sja1105_setup_tc_taprio':
sja1105_tas.c:(.text+0x318): undefined reference to `taprio_offload_free'
sja1105_tas.c:(.text+0x590): undefined reference to `taprio_offload_get'
drivers/net/dsa/sja1105/sja1105_tas.o: In function `sja1105_tas_teardown':
sja1105_tas.c:(.text+0x610): undefined reference to `taprio_offload_free'
make: *** [vmlinux] Error 1

sja1105_tas needs tc-taprio, so this patch add the dependency for it.

Fixes: 317ab5b86c ("net: dsa: sja1105: Configure the Time-Aware Scheduler via tc-taprio offload")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 19:41:19 -07:00
Cong Wang 199ce850ce net_sched: add policy validation for action attributes
Similar to commit 8b4c3cdd9d
("net: sched: Add policy validation for tc attributes"), we need
to add proper policy validation for TC action attributes too.

Cc: David Ahern <dsahern@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 19:33:13 -07:00
Cong Wang 62794fc4fb net_sched: add max len check for TCA_KIND
The TCA_KIND attribute is of NLA_STRING which does not check
the NUL char. KMSAN reported an uninit-value of TCA_KIND which
is likely caused by the lack of NUL.

Change it to NLA_NUL_STRING and add a max len too.

Fixes: 8b4c3cdd9d ("net: sched: Add policy validation for tc attributes")
Reported-and-tested-by: syzbot+618aacd49e8c8b8486bd@syzkaller.appspotmail.com
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 19:18:51 -07:00
Arnd Bergmann b0e1ee435a net: remove netx ethernet driver
The ARM netx platform got removed in 5.3, so this driver
is now useless.

Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 19:08:31 -07:00
Bjorn Andersson 73f0c11d11 net: qrtr: Stop rx_worker before freeing node
As the endpoint is unregistered there might still be work pending to
handle incoming messages, which will result in a use after free
scenario. The plan is to remove the rx_worker, but until then (and for
stable@) ensure that the work is stopped before the node is freed.

Fixes: bdabad3e36 ("net: Add Qualcomm IPC router")
Cc: stable@vger.kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 18:45:46 -07:00
Peter Mamonov e47488b2df net/phy: fix DP83865 10 Mbps HDX loopback disable function
According to the DP83865 datasheet "the 10 Mbps HDX loopback can be
disabled in the expanded memory register 0x1C0.1". The driver erroneously
used bit 0 instead of bit 1.

Fixes: 4621bf1298 ("phy: Add file missed in previous commit.")
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 18:21:52 -07:00
Bjørn Mork 8d3d7c2029 usbnet: ignore endpoints with invalid wMaxPacketSize
Endpoints with zero wMaxPacketSize are not usable for transferring
data. Ignore such endpoints when looking for valid in, out and
status pipes, to make the drivers more robust against invalid and
meaningless descriptors.

The wMaxPacketSize of these endpoints are used for memory allocations
and as divisors in many usbnet minidrivers. Avoiding zero is therefore
critical.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 12:06:55 -07:00
Bjørn Mork 3fe4b33513 cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize
Endpoints with zero wMaxPacketSize are not usable for transferring
data. Ignore such endpoints when looking for valid in, out and
status pipes, to make the driver more robust against invalid and
meaningless descriptors.

The wMaxPacketSize of the out pipe is used as divisor. So this change
fixes a divide-by-zero bug.

Reported-by: syzbot+ce366e2b8296e25d84f5@syzkaller.appspotmail.com
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-21 12:06:49 -07:00
Eric Dumazet 7b09c2d052 ipv6: fix a typo in fib6_rule_lookup()
Yi Ren reported an issue discovered by syzkaller, and bisected
to the cited commit.

Many thanks to Yi, this trivial patch does not reflect the patient
work that has been done.

Fixes: d64a1f574a ("ipv6: honor RT6_LOOKUP_F_DST_NOREF in rule lookup logic")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Wei Wang <weiwan@google.com>
Bisected-and-reported-by: Yi Ren <c4tren@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-20 19:17:57 -07:00