A group of security researchers brought to our attention
the weakness of hash function used in rt6_exception_hash()
Lets use siphash instead of Jenkins Hash, to considerably
reduce security risks.
Following patch deals with IPv4.
Fixes: 35732d01fe ("ipv6: introduce a hash table to store dst cache")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Keyu Man <kman001@ucr.edu>
Cc: Wei Wang <weiwan@google.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-5.14-20210826' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine says:
====================
pull-request: can 2021-08-26
this is a pull request of a single patch for net/master.
Stefan Mätje's patch fixes the interchange of RX and TX error counters
inthe esd_usb2 CAN driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the interchanged fetch of the CAN RX and TX error
counters from the ESD_EV_CAN_ERROR_EXT message. The RX error counter
is really in struct rx_msg::data[2] and the TX error counter is in
struct rx_msg::data[3].
Fixes: 96d8e90382 ("can: Add driver for esd CAN-USB/2 device")
Link: https://lore.kernel.org/r/20210825215227.4947-2-stefan.maetje@esd.eu
Cc: stable@vger.kernel.org
Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/usb/asix_devices.c:757:60-65: WARNING: conversion to bool not needed here
Remove unneeded conversion to bool
Semantic patch information:
Relational and logical operators evaluate to bool,
explicit conversion is overly verbose and unneeded.
Generated by: scripts/coccinelle/misc/boolconv.cocci
Fixes: 7a141e64cf ("net: usb: asix: ax88772: move embedded PHY detection as early as possible")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20210825183538.13070-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
While running kselftests, Hangbin observed that sch_ets.sh often crashes,
and splats like the following one are seen in the output of 'dmesg':
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 159f12067 P4D 159f12067 PUD 159f13067 PMD 0
Oops: 0000 [#1] SMP NOPTI
CPU: 2 PID: 921 Comm: tc Not tainted 5.14.0-rc6+ #458
Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
RIP: 0010:__list_del_entry_valid+0x2d/0x50
Code: 48 8b 57 08 48 b9 00 01 00 00 00 00 ad de 48 39 c8 0f 84 ac 6e 5b 00 48 b9 22 01 00 00 00 00 ad de 48 39 ca 0f 84 cf 6e 5b 00 <48> 8b 32 48 39 fe 0f 85 af 6e 5b 00 48 8b 50 08 48 39 f2 0f 85 94
RSP: 0018:ffffb2da005c3890 EFLAGS: 00010217
RAX: 0000000000000000 RBX: ffff9073ba23f800 RCX: dead000000000122
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff9073ba23fbc8
RBP: ffff9073ba23f890 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: dead000000000100
R13: ffff9073ba23fb00 R14: 0000000000000002 R15: 0000000000000002
FS: 00007f93e5564e40(0000) GS:ffff9073bba00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000014ad34000 CR4: 0000000000350ee0
Call Trace:
ets_qdisc_reset+0x6e/0x100 [sch_ets]
qdisc_reset+0x49/0x1d0
tbf_reset+0x15/0x60 [sch_tbf]
qdisc_reset+0x49/0x1d0
dev_reset_queue.constprop.42+0x2f/0x90
dev_deactivate_many+0x1d3/0x3d0
dev_deactivate+0x56/0x90
qdisc_graft+0x47e/0x5a0
tc_get_qdisc+0x1db/0x3e0
rtnetlink_rcv_msg+0x164/0x4c0
netlink_rcv_skb+0x50/0x100
netlink_unicast+0x1a5/0x280
netlink_sendmsg+0x242/0x480
sock_sendmsg+0x5b/0x60
____sys_sendmsg+0x1f2/0x260
___sys_sendmsg+0x7c/0xc0
__sys_sendmsg+0x57/0xa0
do_syscall_64+0x3a/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f93e44b8338
Code: 89 02 48 c7 c0 ff ff ff ff eb b5 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 25 43 2c 00 8b 00 85 c0 75 17 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 41 54 41 89 d4 55
RSP: 002b:00007ffc0db737a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000061255c06 RCX: 00007f93e44b8338
RDX: 0000000000000000 RSI: 00007ffc0db73810 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000000b R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000687880 R14: 0000000000000000 R15: 0000000000000000
Modules linked in: sch_ets sch_tbf dummy rfkill iTCO_wdt iTCO_vendor_support intel_rapl_msr intel_rapl_common joydev i2c_i801 pcspkr i2c_smbus lpc_ich virtio_balloon ip_tables xfs libcrc32c crct10dif_pclmul crc32_pclmul crc32c_intel ahci libahci ghash_clmulni_intel libata serio_raw virtio_blk virtio_console virtio_net net_failover failover sunrpc dm_mirror dm_region_hash dm_log dm_mod
CR2: 0000000000000000
When the change() function decreases the value of 'nstrict', we must take
into account that packets might be already enqueued on a class that flips
from 'strict' to 'quantum': otherwise that class will not be added to the
bandwidth-sharing list. Then, a call to ets_qdisc_reset() will attempt to
do list_del(&alist) with 'alist' filled with zero, hence the NULL pointer
dereference.
For classes flipping from 'strict' to 'quantum', initialize an empty list
and eventually add it to the bandwidth-sharing list, if there are packets
already enqueued. In this way, the kernel will:
a) prevent crashing as described above.
b) avoid retaining the backlog packets (for an arbitrarily long time) in
case no packet is enqueued after a change from 'strict' to 'quantum'.
Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Fixes: dcc68b4d80 ("net: sch_ets: Add a new Qdisc")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thanks to Kees Cook who detected the problem of memset that starting
from not the first member, but sized for the whole struct.
The better change will be to remove the redundant memset and to clear
only the msix_cnt member.
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Reported-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ensure a valid XSK buffer before proceed to free the xdp buffer.
The following kernel panic is observed without this patch:
RIP: 0010:xp_free+0x5/0x40
Call Trace:
stmmac_napi_poll_rxtx+0x332/0xb30 [stmmac]
? stmmac_tx_timer+0x3c/0xb0 [stmmac]
net_rx_action+0x13d/0x3d0
__do_softirq+0xfc/0x2fb
? smpboot_register_percpu_thread+0xe0/0xe0
run_ksoftirqd+0x32/0x70
smpboot_thread_fn+0x1d8/0x2c0
kthread+0x169/0x1a0
? kthread_park+0x90/0x90
ret_from_fork+0x1f/0x30
---[ end trace 0000000000000002 ]---
Fixes: bba2556efa ("net: stmmac: Enable RX via AF_XDP zero-copy")
Cc: <stable@vger.kernel.org> # 5.13.x
Suggested-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After free xsk_pool, there is possibility that napi polling is still
running in the middle, thus causes a kernel crash due to kernel NULL
pointer dereference of rx_q->xsk_pool and tx_q->xsk_pool.
Fix this by changing the XDP pool setup sequence to:
1. disable napi before free xsk_pool
2. enable napi after init xsk_pool
The following kernel panic is observed without this patch:
RIP: 0010:xsk_uses_need_wakeup+0x5/0x10
Call Trace:
stmmac_napi_poll_rxtx+0x3a9/0xae0 [stmmac]
__napi_poll+0x27/0x130
net_rx_action+0x233/0x280
__do_softirq+0xe2/0x2b6
run_ksoftirqd+0x1a/0x20
smpboot_thread_fn+0xac/0x140
? sort_range+0x20/0x20
kthread+0x124/0x150
? set_kthread_struct+0x40/0x40
ret_from_fork+0x1f/0x30
---[ end trace a77c8956b79ac107 ]---
Fixes: bba2556efa ("net: stmmac: Enable RX via AF_XDP zero-copy")
Cc: <stable@vger.kernel.org> # 5.13.x
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
macb_ptp_desc will not return NULL under most circumstances with correct
Kconfig and IP design config register. But for the sake of the extreme
corner case, check for NULL when using the helper. In case of rx_tstamp,
no action is necessary except to return (similar to timestamp disabled)
and warn. In case of TX, return -EINVAL to let the skb be free. Perform
this check before marking skb in progress.
Fixes coverity warning:
(4) Event dereference:
Dereferencing a null pointer "desc_ptp"
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 2c896fb02e
"net: stmmac: dwmac-rk: add pd_gmac support for rk3399" and fixes
unbalanced pm_runtime_enable warnings.
In the commit to be reverted, support for power management was
introduced to the Rockchip glue code. Later, power management support
was introduced to the stmmac core code, resulting in multiple
invocations of pm_runtime_{enable,disable,get_sync,put_sync}.
The multiple invocations happen in rk_gmac_powerup and
stmmac_{dvr_probe, resume} as well as in rk_gmac_powerdown and
stmmac_{dvr_remove, suspend}, respectively, which are always called
in conjunction.
Fixes: 5ec5582343 ("net: stmmac: add clocks management for gmac driver")
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
In early erratas this issue only covered port 0 when changing from
[x]MII (rev A 3.6). In subsequent errata versions this errata changed to
cover the additional "Hardware reset in CPU managed mode" condition, and
removed the note specifying that it only applied to port 0.
In designs where the device is configured with CPU managed mode
(CPU_MGD), on reset all SERDES ports (p0, p9, p10) have a stuck power
down bit and require this initial power up procedure. As such apply this
errata to all three SERDES ports of the mv88e6393x.
Signed-off-by: Nathan Rossi <nathan.rossi@digi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
correct comments in set and get fn_sernum
Signed-off-by: zhang kai <zhangkaiheb@126.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
For VFs we should return with an error in case we didn't get the exact
number of msix vectors as we requested.
Not doing that will lead to a crash when starting queues for this VF.
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Oleksij Rempel says:
====================
asix fixes
changes v2:
- rebase against current net
- add one more fix for the ax88178 variant
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix crash on reboot on a system with ASIX AX88178 USB adapter attached
to it:
| asix 1-1.4:1.0 eth0: unregister 'asix' usb-ci_hdrc.0-1.4, ASIX AX88178 USB 2.0 Ethernet
| 8<--- cut here ---
| Unable to handle kernel NULL pointer dereference at virtual address 0000028c
| pgd = 5ec93aee
| [0000028c] *pgd=00000000
| Internal error: Oops: 5 [#1] PREEMPT SMP ARM
| Modules linked in:
| CPU: 1 PID: 1 Comm: systemd-shutdow Not tainted 5.14.0-rc1-20210811-1 #4
| Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
| PC is at phy_disconnect+0x8/0x48
| LR is at ax88772_unbind+0x14/0x20
| [<80650d04>] (phy_disconnect) from [<80741aa4>] (ax88772_unbind+0x14/0x20)
| [<80741aa4>] (ax88772_unbind) from [<8074e250>] (usbnet_disconnect+0x48/0xd8)
| [<8074e250>] (usbnet_disconnect) from [<807655e0>] (usb_unbind_interface+0x78/0x25c)
| [<807655e0>] (usb_unbind_interface) from [<805b03a0>] (__device_release_driver+0x154/0x20c)
| [<805b03a0>] (__device_release_driver) from [<805b0478>] (device_release_driver+0x20/0x2c)
| [<805b0478>] (device_release_driver) from [<805af944>] (bus_remove_device+0xcc/0xf8)
| [<805af944>] (bus_remove_device) from [<805ab26c>] (device_del+0x178/0x4b0)
| [<805ab26c>] (device_del) from [<807634a4>] (usb_disable_device+0xcc/0x178)
| [<807634a4>] (usb_disable_device) from [<8075a060>] (usb_disconnect+0xd8/0x238)
| [<8075a060>] (usb_disconnect) from [<8075a02c>] (usb_disconnect+0xa4/0x238)
| [<8075a02c>] (usb_disconnect) from [<8075a02c>] (usb_disconnect+0xa4/0x238)
| [<8075a02c>] (usb_disconnect) from [<80af3520>] (usb_remove_hcd+0xa0/0x198)
| [<80af3520>] (usb_remove_hcd) from [<807902e0>] (host_stop+0x38/0xa8)
| [<807902e0>] (host_stop) from [<8078d9e4>] (ci_hdrc_remove+0x3c/0x118)
| [<8078d9e4>] (ci_hdrc_remove) from [<805b27ec>] (platform_remove+0x20/0x50)
| [<805b27ec>] (platform_remove) from [<805b03a0>] (__device_release_driver+0x154/0x20c)
| [<805b03a0>] (__device_release_driver) from [<805b0478>] (device_release_driver+0x20/0x2c)
| [<805b0478>] (device_release_driver) from [<805af944>] (bus_remove_device+0xcc/0xf8)
| [<805af944>] (bus_remove_device) from [<805ab26c>] (device_del+0x178/0x4b0)
For this adapter we call ax88178_bind() and ax88772_unbind(), which is
related to different chip version and different counter part *bind()
function.
Since this chip is currently not ported to the PHYLIB, we do not need to
call phy_disconnect() here. So, to fix this crash, we need to add
ax88178_unbind().
Fixes: e532a096be ("net: usb: asix: ax88772: add phylib support")
Reported-by: Robin van der Gracht <robin@protonic.nl>
Tested-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some HW revisions need additional MAC configuration before the embedded PHY
can be enabled. If this is not done, we won't be able to get response
from the internal PHY.
This issue was detected on chipcode == AX_AX88772_CHIPCODE variant,
where ax88772_hw_reset() was executed with missing embd_phy flag.
Fixes: e532a096be ("net: usb: asix: ax88772: add phylib support")
Reported-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
According to Armada XP datasheet bit at 0 position is corresponding for
TxInProg indication.
Fixes: c5aff18204 ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the case of taprio offload is not enabled, the error handling path
causes a kernel crash due to kernel NULL pointer deference.
Fix this by adding check for NULL before attempt to access 'plat->est'
on the mutex_lock() call.
The following kernel panic is observed without this patch:
RIP: 0010:mutex_lock+0x10/0x20
Call Trace:
tc_setup_taprio+0x482/0x560 [stmmac]
kmem_cache_alloc_trace+0x13f/0x490
taprio_disable_offload.isra.0+0x9d/0x180 [sch_taprio]
taprio_destroy+0x6c/0x100 [sch_taprio]
qdisc_create+0x2e5/0x4f0
tc_modify_qdisc+0x126/0x740
rtnetlink_rcv_msg+0x12b/0x380
_raw_spin_lock_irqsave+0x19/0x40
_raw_spin_unlock_irqrestore+0x18/0x30
create_object+0x212/0x340
rtnl_calcit.isra.0+0x110/0x110
netlink_rcv_skb+0x50/0x100
netlink_unicast+0x191/0x230
netlink_sendmsg+0x243/0x470
sock_sendmsg+0x5e/0x60
____sys_sendmsg+0x20b/0x280
copy_msghdr_from_user+0x5c/0x90
__mod_memcg_state+0x87/0xf0
___sys_sendmsg+0x7c/0xc0
lru_cache_add+0x7f/0xa0
_raw_spin_unlock+0x16/0x30
wp_page_copy+0x449/0x890
handle_mm_fault+0x921/0xfc0
__sys_sendmsg+0x59/0xa0
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
---[ end trace b1f19b24368a96aa ]---
Fixes: b60189e039 ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Cc: <stable@vger.kernel.org> # 5.10.x
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-08-20
This series contains updates to igc and e1000e drivers.
Aaron Ma resolves a page fault which occurs when thunderbolt is
unplugged for igc.
Toshiki Nishioka fixes Tx queue looping to use actual number of queues
instead of max value for igc.
Sasha fixes an incorrect latency comparison by decoding the values before
comparing and prevents attempted writes to read-only NVMs for e1000e.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A successful 'xge_mdio_config()' call should be balanced by a corresponding
'xge_mdio_remove()' call in the error handling path of the probe, as
already done in the remove function.
Update the error handling path accordingly.
Fixes: ea8ab16ab2 ("drivers: net: xgene-v2: Add MDIO support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Validate csum_start in gre_handle_offloads before we call _gre_xmit so
that we do not crash later when the csum_start value is used in the
lco_csum function call.
This patch deals with ipv6 code.
Fixes: Fixes: b05229f442 ("gre6: Cleanup GREv6 transmit path, call common
GRE functions")
Reported-by: syzbot+ff8e1b9f2f36481e2efc@syzkaller.appspotmail.com
Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Validate csum_start in gre_handle_offloads before we call _gre_xmit so
that we do not crash later when the csum_start value is used in the
lco_csum function call.
This patch deals with ipv4 code.
Fixes: c544193214 ("GRE: Refactor GRE tunneling code.")
Reported-by: syzbot+ff8e1b9f2f36481e2efc@syzkaller.appspotmail.com
Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit a955318fe6 ("stmmac: align RX buffers"),
which breaks at least one platform (Nvidia Jetson-X1), causing
packet corruption. This is 100% reproducible, and reverting
the patch results in a working system again.
Given that it is "only" a performance optimisation, let's
return to a known working configuration until we can have a
good understanding of what is happening here.
Fixes: a955318fe6 ("stmmac: align RX buffers")
Cc: Matteo Croce <mcroce@linux.microsoft.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Link: https://lore.kernel.org/netdev/871r71azjw.wl-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210820183002.457226-1-maz@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
On new platforms, the NVM is read-only. Attempting to update the NVM
is causing a lockup to occur. Do not attempt to write to the NVM
on platforms where it's not supported.
Emit an error message when the NVM checksum is invalid.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=213667
Fixes: fb776f5d57 ("e1000e: Add support for Tiger Lake")
Suggested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Suggested-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
We should decode the latency and the max_latency before directly compare.
The latency should be presented as lat_enc = scale x value:
lat_enc_d = (lat_enc & 0x0x3ff) x (1U << (5*((max_ltr_enc & 0x1c00)
>> 10)))
Fixes: cf8fb73c23 ("e1000e: add support for LTR on I217/I218")
Suggested-by: Yee Li <seven.yi.lee@gmail.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Use num_tx_queues rather than the IGC_MAX_TX_QUEUES fixed number 4 when
iterating over tx_ring queue since instantiated queue count could be
less than 4 where on-line cpu count is less than 4.
Fixes: ec50a9d437 ("igc: Add support for taprio offloading")
Signed-off-by: Toshiki Nishioka <toshiki.nishioka@intel.com>
Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Tested-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
After unplug thunderbolt dock with i225, pciehp interrupt is triggered,
remove call will read/write mmio address which is already disconnected,
then cause page fault and make system hang.
Check PCI state to remove device safely.
Trace:
BUG: unable to handle page fault for address: 000000000000b604
Oops: 0000 [#1] SMP NOPTI
RIP: 0010:igc_rd32+0x1c/0x90 [igc]
Call Trace:
igc_ptp_suspend+0x6c/0xa0 [igc]
igc_ptp_stop+0x12/0x50 [igc]
igc_remove+0x7f/0x1c0 [igc]
pci_device_remove+0x3e/0xb0
__device_release_driver+0x181/0x240
Fixes: 13b5b7fd6a ("igc: Add support for Tx/Rx rings")
Fixes: b03c49cde6 ("igc: Save PTP time before a reset")
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
- restore the behavior in enable_net_traffic() to avoid regressions - Jakub
Kicinski;
- hurried up and removed redundant assignment in pegasus_open() before yet
another checker complains;
Fixes: 8a160e2e9a ("net: usb: pegasus: Check the return value of get_geristers() and friends;")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Petko Manolov <petko.manolov@konsulko.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This check was incomplete, did not consider size is 0:
if (len != ALIGN(size, 4) + hdrlen)
goto err;
if size from qrtr_hdr is 0, the result of ALIGN(size, 4)
will be 0, In case of len == hdrlen and size == 0
in header this check won't fail and
if (cb->type == QRTR_TYPE_NEW_SERVER) {
/* Remote node endpoint can bridge other distant nodes */
const struct qrtr_ctrl_pkt *pkt = data + hdrlen;
qrtr_node_assign(node, le32_to_cpu(pkt->server.node));
}
will also read out of bound from data, which is hdrlen allocated block.
Fixes: 194ccc8829 ("net: qrtr: Support decoding incoming v2 packets")
Fixes: ad9d24c942 ("net: qrtr: fix OOB Read in qrtr_endpoint_post")
Signed-off-by: Xiaolong Huang <butterflyhuangxx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The devlink dev info command reports version information about the
device and firmware running on the board. This includes the "board.id"
field which is supposed to represent an identifier of the board design.
The ice driver uses the Product Board Assembly identifier for this.
In some cases, the PBA is not present in the NVM. If this happens,
devlink dev info will fail with an error. Instead, modify the
ice_info_pba function to just exit without filling in the context
buffer. This will cause the board.id field to be skipped. Log a dev_dbg
message in case someone wants to confirm why board.id is not showing up
for them.
Fixes: e961b679fb ("ice: add board identifier info to devlink .info_get")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20210819223451.245613-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mac80211 trees.
Current release - regressions:
- tipc: call tipc_wait_for_connect only when dlen is not 0
- mac80211: fix locking in ieee80211_restart_work()
Current release - new code bugs:
- bpf: add rcu_read_lock in bpf_get_current_[ancestor_]cgroup_id()
- ethernet: ice: fix perout start time rounding
- wwan: iosm: prevent underflow in ipc_chnl_cfg_get()
Previous releases - regressions:
- bpf: clear zext_dst of dead insns
- sch_cake: fix srchost/dsthost hashing mode
- vrf: reset skb conntrack connection on VRF rcv
- net/rds: dma_map_sg is entitled to merge entries
Previous releases - always broken:
- ethernet: bnxt: fix Tx path locking and races, add Rx path barriers
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes, including fixes from bpf, wireless and mac80211
trees.
Current release - regressions:
- tipc: call tipc_wait_for_connect only when dlen is not 0
- mac80211: fix locking in ieee80211_restart_work()
Current release - new code bugs:
- bpf: add rcu_read_lock in bpf_get_current_[ancestor_]cgroup_id()
- ethernet: ice: fix perout start time rounding
- wwan: iosm: prevent underflow in ipc_chnl_cfg_get()
Previous releases - regressions:
- bpf: clear zext_dst of dead insns
- sch_cake: fix srchost/dsthost hashing mode
- vrf: reset skb conntrack connection on VRF rcv
- net/rds: dma_map_sg is entitled to merge entries
Previous releases - always broken:
- ethernet: bnxt: fix Tx path locking and races, add Rx path
barriers"
* tag 'net-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (42 commits)
net: dpaa2-switch: disable the control interface on error path
Revert "flow_offload: action should not be NULL when it is referenced"
iavf: Fix ping is lost after untrusted VF had tried to change MAC
i40e: Fix ATR queue selection
r8152: fix the maximum number of PLA bp for RTL8153C
r8152: fix writing USB_BP2_EN
mptcp: full fully established support after ADD_ADDR
mptcp: fix memory leak on address flush
net/rds: dma_map_sg is entitled to merge entries
net: mscc: ocelot: allow forwarding from bridge ports to the tag_8021q CPU port
net: asix: fix uninit value bugs
ovs: clear skb->tstamp in forwarding path
net: mdio-mux: Handle -EPROBE_DEFER correctly
net: mdio-mux: Don't ignore memory allocation errors
net: mdio-mux: Delete unnecessary devm_kfree
net: dsa: sja1105: fix use-after-free after calling of_find_compatible_node, or worse
sch_cake: fix srchost/dsthost hashing mode
ixgbe, xsk: clean up the resources in ixgbe_xsk_pool_enable error path
net: qlcnic: add missed unlock in qlcnic_83xx_flash_read32
mac80211: fix locking in ieee80211_restart_work()
...
A small set of pdx86 fixes for 5.14:
- asus-nb-wmi: Enable SW_TABLET_MODE support for the TP200s (DMI quirk)
- gigabyte-wmi: Enable on 2 more Gigabyte motherboards (2 DMI quirks)
The following is an automated git shortlog grouped by driver:
asus-nb-wmi:
- Add tablet_mode_sw=lid-flip quirk for the TP200s
- Allow configuring SW_TABLET_MODE method with a module option
gigabyte-wmi:
- add support for B450M S2H V2
- add support for X570 GAMING X
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Merge tag 'platform-drivers-x86-v5.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- Enable SW_TABLET_MODE support for the TP200s
- Enable WMI on two more Gigabyte motherboards
* tag 'platform-drivers-x86-v5.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: gigabyte-wmi: add support for B450M S2H V2
platform/x86: gigabyte-wmi: add support for X570 GAMING X
platform/x86: asus-nb-wmi: Add tablet_mode_sw=lid-flip quirk for the TP200s
platform/x86: asus-nb-wmi: Allow configuring SW_TABLET_MODE method with a module option
Currently dpaa2_switch_takedown has a funny name and does not do the
opposite of dpaa2_switch_init, which makes probing fail when we need to
handle an -EPROBE_DEFER.
A sketch of what dpaa2_switch_init does:
dpsw_open
dpaa2_switch_detect_features
dpsw_reset
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
dpsw_if_disable
dpsw_if_set_stp
dpsw_vlan_remove_if_untagged
dpsw_if_set_tci
dpsw_vlan_remove_if
}
dpsw_vlan_remove
alloc_ordered_workqueue
dpsw_fdb_remove
dpaa2_switch_ctrl_if_setup
When dpaa2_switch_takedown is called from the error path of
dpaa2_switch_probe(), the control interface, enabled by
dpaa2_switch_ctrl_if_setup from dpaa2_switch_init, remains enabled,
because dpaa2_switch_takedown does not call
dpaa2_switch_ctrl_if_teardown.
Since dpaa2_switch_probe might fail due to EPROBE_DEFER of a PHY, this
means that a second probe of the driver will happen with the control
interface directly enabled.
This will trigger a second error:
[ 93.273528] fsl_dpaa2_switch dpsw.0: dpsw_ctrl_if_set_pools() failed
[ 93.281966] fsl_dpaa2_switch dpsw.0: fsl_mc_driver_probe failed: -13
[ 93.288323] fsl_dpaa2_switch: probe of dpsw.0 failed with error -13
Which if we investigate the /dev/dpaa2_mc_console log, we find out is
caused by:
[E, ctrl_if_set_pools:2211, DPMNG] ctrl_if must be disabled
So make dpaa2_switch_takedown do the opposite of dpaa2_switch_init (in
reasonable limits, no reason to change STP state, re-add VLANs etc), and
rename it to something more conventional, like dpaa2_switch_teardown.
Fixes: 613c0a5810 ("staging: dpaa2-switch: enable the control interface")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20210819141755.1931423-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This reverts commit 9ea3e52c5b.
Cited commit added a check to make sure 'action' is not NULL, but
'action' is already dereferenced before the check, when calling
flow_offload_has_one_action().
Therefore, the check does not make any sense and results in a smatch
warning:
include/net/flow_offload.h:322 flow_action_mixed_hw_stats_check() warn:
variable dereferenced before check 'action' (see line 319)
Fix by reverting this commit.
Cc: gushengxian <gushengxian@yulong.com>
Fixes: 9ea3e52c5b ("flow_offload: action should not be NULL when it is referenced")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://lore.kernel.org/r/20210819105842.1315705-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-08-18
This series contains updates to i40e and iavf drivers.
Arkadiusz fixes Flow Director not using the correct queue due to calling
the wrong pick Tx function for i40e.
Sylwester resolves traffic loss for iavf when it attempts to change its
MAC address when it does not have permissions to do so.
====================
Link: https://lore.kernel.org/r/20210818174217.4138922-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Make changes to MAC address dependent on the response of PF.
Disallow changes to HW MAC address and MAC filter from untrusted
VF, thanks to that ping is not lost if VF tries to change MAC.
Add a new field in iavf_mac_filter, to indicate whether there
was response from PF for given filter. Based on this field pass
or discard the filter.
If untrusted VF tried to change it's address, it's not changed.
Still filter was changed, because of that ping couldn't go through.
Fixes: c5c922b3e0 ("iavf: fix MAC address setting for VFs when filter is rejected")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Gurucharan G <Gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Without this patch, ATR does not work. Receive/transmit uses queue
selection based on SW DCB hashing method.
If traffic classes are not configured for PF, then use
netdev_pick_tx function for selecting queue for packet transmission.
Instead of calling i40e_swdcb_skb_tx_hash, call netdev_pick_tx,
which ensures that packet is transmitted/received from CPU that is
running the application.
Reproduction steps:
1. Load i40e driver
2. Map each MSI interrupt of i40e port for each CPU
3. Disable ntuple, enable ATR i.e.:
ethtool -K $interface ntuple off
ethtool --set-priv-flags $interface flow-director-atr
4. Run application that is generating traffic and is bound to a
single CPU, i.e.:
taskset -c 9 netperf -H 1.1.1.1 -t TCP_RR -l 10
5. Observe behavior:
Application's traffic should be restricted to the CPU provided in
taskset.
Fixes: 89ec1f0886 ("i40e: Fix queue-to-TC mapping on Tx")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Daniel Borkmann says:
====================
pull-request: bpf 2021-08-19
We've added 3 non-merge commits during the last 3 day(s) which contain
a total of 3 files changed, 29 insertions(+), 6 deletions(-).
The main changes are:
1) Fix to clear zext_dst for dead instructions which was causing invalid program
rejections on JITs with bpf_jit_needs_zext such as s390x, from Ilya Leoshkevich.
2) Fix RCU splat in bpf_get_current_{ancestor_,}cgroup_id() helpers when they are
invoked from sleepable programs, from Yonghong Song.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests, bpf: Test that dead ldx_w insns are accepted
bpf: Clear zext_dst of dead insns
bpf: Add rcu_read_lock in bpf_get_current_[ancestor_]cgroup_id() helpers
====================
Link: https://lore.kernel.org/r/20210819144904.20069-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Hayes Wang says:
====================
r8152: fix bp settings
Fix the wrong bp settings of the firmware.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The maximum PLA bp number of RTL8153C is 16, not 8. That is, the
bp 0 ~ 15 are at 0xfc28 ~ 0xfc46, and the bp_en is at 0xfc48.
Fixes: 195aae321c ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The register of USB_BP2_EN is 16 bits, so we should use
ocp_write_word(), not ocp_write_byte().
Fixes: 9370f2d05a ("support request_firmware for RTL8153")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mat Martineau says:
====================
mptcp: Bug fixes
Here are two bug fixes for the net tree:
Patch 1 fixes a memory leak that could be encountered when clearing the
list of advertised MPTCP addresses.
Patch 2 fixes a protocol issue early in an MPTCP connection, to ensure
both peers correctly understand that the full MPTCP connection handshake
has completed even when the server side quickly sends an ADD_ADDR
option.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If directly after an MP_CAPABLE 3WHS, the client receives an ADD_ADDR
with HMAC from the server, it is enough to switch to a "fully
established" mode because it has received more MPTCP options.
It was then OK to enable the "fully_established" flag on the MPTCP
socket. Still, best to check if the ADD_ADDR looks valid by looking if
it contains an HMAC (no 'echo' bit). If an ADD_ADDR echo is received
while we are not in "fully established" mode, it is strange and then
we should not switch to this mode now.
But that is not enough. On one hand, the path-manager has be notified
the state has changed. On the other hand, the "fully_established" flag
on the subflow socket should be turned on as well not to re-send the
MP_CAPABLE 3rd ACK content with the next ACK.
Fixes: 84dfe3677a ("mptcp: send out dedicated ADD_ADDR packet")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Function "dma_map_sg" is entitled to merge adjacent entries
and return a value smaller than what was passed as "nents".
Subsequently "ib_map_mr_sg" needs to work with this value ("sg_dma_len")
rather than the original "nents" parameter ("sg_len").
This old RDS bug was exposed and reliably causes kernel panics
(using RDMA operations "rds-stress -D") on x86_64 starting with:
commit c588072bba ("iommu/vt-d: Convert intel iommu driver to the iommu ops")
Simply put: Linux 5.11 and later.
Signed-off-by: Gerd Rausch <gerd.rausch@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Link: https://lore.kernel.org/r/60efc69f-1f35-529d-a7ef-da0549cad143@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently we are unable to ping a bridge on top of a felix switch which
uses the ocelot-8021q tagger. The packets are dropped on the ingress of
the user port and the 'drop_local' counter increments (the counter which
denotes drops due to no valid destinations).
Dumping the PGID tables, it becomes clear that the PGID_SRC of the user
port is zero, so it has no valid destinations.
But looking at the code, the cpu_fwd_mask (the bit mask of DSA tag_8021q
ports) is clearly missing from the forwarding mask of ports that are
under a bridge. So this has always been broken.
Looking at the version history of the patch, in v7
https://patchwork.kernel.org/project/netdevbpf/patch/20210125220333.1004365-12-olteanv@gmail.com/
the code looked like this:
/* Standalone ports forward only to DSA tag_8021q CPU ports */
unsigned long mask = cpu_fwd_mask;
(...)
} else if (ocelot->bridge_fwd_mask & BIT(port)) {
mask |= ocelot->bridge_fwd_mask & ~BIT(port);
while in v8 (the merged version)
https://patchwork.kernel.org/project/netdevbpf/patch/20210129010009.3959398-12-olteanv@gmail.com/
it looked like this:
unsigned long mask;
(...)
} else if (ocelot->bridge_fwd_mask & BIT(port)) {
mask = ocelot->bridge_fwd_mask & ~BIT(port);
So the breakage was introduced between v7 and v8 of the patch.
Fixes: e21268efbe ("net: dsa: felix: perform switch setup for tag_8021q")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20210817160425.3702809-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'for-5.14-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"One more fix for cross-rename, adding a missing check for directory
and subvolume, this could lead to a crash"
* tag 'for-5.14-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: prevent rename2 from exchanging a subvol with a directory from different parents
Hopefully the last PR for 5.14: here includes only a few regression
fixes and trivial device quirks.
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Merge tag 'sound-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Only a few regression fixes and trivial device quirks"
* tag 'sound-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/via: Apply runtime PM workaround for ASUS B23E
ALSA: hda: Fix hang during shutdown due to link reset
ALSA: hda/realtek: Enable 4-speaker output for Dell XPS 15 9510 laptop
ALSA: oxfw: fix functioal regression for silence in Apogee Duet FireWire
ALSA: hda - fix the 'Capture Switch' value change notifications
