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Eric reports that syzbot made short work out of my speculative
fix. Indeed when queue gets detached its tfile->tun remains,
so we would try to stop NAPI twice with a detach(), close()
sequence.
Alternative fix would be to move tun_napi_disable() to
tun_detach_all() and let the NAPI run after the queue
has been detached.
Fixes: a8fc8cb5692a ("net: tun: stop NAPI when detaching queues")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220629181911.372047-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When adding/deleting mdb entries on other net_devices, eg., tap
interfaces, it should not crash.
Fixes: 3bacfccdcb2d ("net: sparx5: Add mdb handlers")
Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Link: https://lore.kernel.org/r/20220630122226.316812-1-casper.casan@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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sfp_probe() allocates a memory chunk from sfp with sfp_alloc(). When
devm_add_action() fails, sfp is not freed, which leads to a memory leak.
We should use devm_add_action_or_reset() instead of devm_add_action().
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20220629075550.2152003-1-niejianglei2021@163.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In mlxsw_sp_nexthop6_init(), a next hop is always added to the router
linked list, and mlxsw_sp_nexthop_type_init() is invoked afterwards. When
that function results in an error, the next hop will not have been removed
from the linked list. As the error is propagated upwards and the caller
frees the next hop object, the linked list ends up holding an invalid
object.
A similar issue comes up with mlxsw_sp_nexthop4_init(), where rollback
block does exist, however does not include the linked list removal.
Both IPv6 and IPv4 next hops have a similar issue with next-hop counter
rollbacks. As these were introduced in the same patchset as the next hop
linked list, include the cleanup in this patch.
Fixes: dbe4598c1e92 ("mlxsw: spectrum_router: Keep nexthops in a linked list")
Fixes: a5390278a5eb ("mlxsw: spectrum: Add support for setting counters on nexthops")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20220629070205.803952-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This patch corrects packet receiving in ax88179_rx_fixup.
- problem observed:
ifconfig shows allways a lot of 'RX Errors' while packets
are received normally.
This occurs because ax88179_rx_fixup does not recognise properly
the usb urb received.
The packets are normally processed and at the end, the code exits
with 'return 0', generating RX Errors.
(pkt_cnt==-2 and ptk_hdr over field rx_hdr trying to identify
another packet there)
This is a usb urb received by "tcpdump -i usbmon2 -X" on a
little-endian CPU:
0x0000: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
^ packet 1 start (pkt_len = 0x05ec)
^^^^ IP alignment pseudo header
^ ethernet packet start
last byte ethernet packet v
padding (8-bytes aligned) vvvv vvvv
0x05e0: c92d d444 1420 8a69 83dd 272f e82b 9811
0x05f0: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
... ^ packet 2
0x0be0: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
...
0x1130: 9d41 9171 8a38 0ec5 eeee f8e3 3b19 87a0
...
0x1720: 8cfc 15ff 5e4c e85c eeee f8e3 3b19 87a0
...
0x1d10: ecfa 2a3a 19ab c78c eeee f8e3 3b19 87a0
...
0x2070: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
... ^ packet 7
0x2120: 7c88 4ca5 5c57 7dcc 0d34 7577 f778 7e0a
0x2130: f032 e093 7489 0740 3008 ec05 0000 0080
====1==== ====2====
hdr_off ^
pkt_len = 0x05ec ^^^^
AX_RXHDR_*=0x00830 ^^^^ ^
pkt_len = 0 ^^^^
AX_RXHDR_DROP_ERR=0x80000000 ^^^^ ^
0x2140: 3008 ec05 0000 0080 3008 5805 0000 0080
0x2150: 3008 ec05 0000 0080 3008 ec05 0000 0080
0x2160: 3008 5803 0000 0080 3008 c800 0000 0080
===11==== ===12==== ===13==== ===14====
0x2170: 0000 0000 0e00 3821
^^^^ ^^^^ rx_hdr
^^^^ pkt_cnt=14
^^^^ hdr_off=0x2138
^^^^ ^^^^ padding
The dump shows that pkt_cnt is the number of entrys in the
per-packet metadata. It is "2 * packet count".
Each packet have two entrys. The first have a valid
value (pkt_len and AX_RXHDR_*) and the second have a
dummy-header 0x80000000 (pkt_len=0 with AX_RXHDR_DROP_ERR).
Why exists dummy-header for each packet?!?
My guess is that this was done probably to align the
entry for each packet to 64-bits and maintain compatibility
with old firmware.
There is also a padding (0x00000000) before the rx_hdr to
align the end of rx_hdr to 64-bit.
Note that packets have a alignment of 64-bits (8-bytes).
This patch assumes that the dummy-header and the last
padding are optional. So it preserves semantics and
recognises the same valid packets as the current code.
This patch was made using only the dumpfile information and
tested with only one device:
0b95:1790 ASIX Electronics Corp. AX88179 Gigabit Ethernet
Fixes: 57bc3d3ae8c1 ("net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup")
Fixes: e2ca90c276e1 ("ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver")
Signed-off-by: Jose Alonso <joalonsof@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/d6970bb04bf67598af4d316eaeb1792040b18cfd.camel@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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commit 0622cab0341c ("bonding: fix 802.3ad aggregator reselection"),
resolve case, when there is several aggregation groups in the same bond.
bond_3ad_unbind_slave will invalidate (clear) aggregator when
__agg_active_ports return zero. So, ad_clear_agg can be executed even, when
num_of_ports!=0. Than bond_3ad_unbind_slave can be executed again for,
previously cleared aggregator. NOTE: at this time bond_3ad_unbind_slave
will not update slave ports list, because lag_ports==NULL. So, here we
got slave ports, pointing to freed aggregator memory.
Fix with checking actual number of ports in group (as was before
commit 0622cab0341c ("bonding: fix 802.3ad aggregator reselection") ),
before ad_clear_agg().
The KASAN logs are as follows:
[ 767.617392] ==================================================================
[ 767.630776] BUG: KASAN: use-after-free in bond_3ad_state_machine_handler+0x13dc/0x1470
[ 767.638764] Read of size 2 at addr ffff00011ba9d430 by task kworker/u8:7/767
[ 767.647361] CPU: 3 PID: 767 Comm: kworker/u8:7 Tainted: G O 5.15.11 #15
[ 767.655329] Hardware name: DNI AmazonGo1 A7040 board (DT)
[ 767.660760] Workqueue: lacp_1 bond_3ad_state_machine_handler
[ 767.666468] Call trace:
[ 767.668930] dump_backtrace+0x0/0x2d0
[ 767.672625] show_stack+0x24/0x30
[ 767.675965] dump_stack_lvl+0x68/0x84
[ 767.679659] print_address_description.constprop.0+0x74/0x2b8
[ 767.685451] kasan_report+0x1f0/0x260
[ 767.689148] __asan_load2+0x94/0xd0
[ 767.692667] bond_3ad_state_machine_handler+0x13dc/0x1470
Fixes: 0622cab0341c ("bonding: fix 802.3ad aggregator reselection")
Co-developed-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20220629012914.361-1-yevhen.orlov@plvision.eu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In case of asix_ax88772a_link_change_notify() workaround, we run soft
reset which will automatically clear MII_ADVERTISE configuration. The
PHYlib framework do not know about changed configuration state of the
PHY, so we need use phy_init_hw() to reinit PHY configuration.
Fixes: dde258469257 ("net: usb/phy: asix: add support for ax88772A/C PHYs")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220628114349.3929928-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Upon system sleep, mdio_bus_phy_suspend() stops the phy_state_machine(),
but subsequent interrupts may retrigger it:
They may have been left enabled to facilitate wakeup and are not
quiesced until the ->suspend_noirq() phase. Unwanted interrupts may
hence occur between mdio_bus_phy_suspend() and dpm_suspend_noirq(),
as well as between dpm_resume_noirq() and mdio_bus_phy_resume().
Retriggering the phy_state_machine() through an interrupt is not only
undesirable for the reason given in mdio_bus_phy_suspend() (freezing it
midway with phydev->lock held), but also because the PHY may be
inaccessible after it's suspended: Accesses to USB-attached PHYs are
blocked once usb_suspend_both() clears the can_submit flag and PHYs on
PCI network cards may become inaccessible upon suspend as well.
Amend phy_interrupt() to avoid triggering the state machine if the PHY
is suspended. Signal wakeup instead if the attached net_device or its
parent has been configured as a wakeup source. (Those conditions are
identical to mdio_bus_phy_may_suspend().) Postpone handling of the
interrupt until the PHY has resumed.
Before stopping the phy_state_machine() in mdio_bus_phy_suspend(),
wait for a concurrent phy_interrupt() to run to completion. That is
necessary because phy_interrupt() may have checked the PHY's suspend
status before the system sleep transition commenced and it may thus
retrigger the state machine after it was stopped.
Likewise, after re-enabling interrupt handling in mdio_bus_phy_resume(),
wait for a concurrent phy_interrupt() to complete to ensure that
interrupts which it postponed are properly rerun.
The issue was exposed by commit 1ce8b37241ed ("usbnet: smsc95xx: Forward
PHY interrupts to PHY driver to avoid polling"), but has existed since
forever.
Fixes: 541cd3ee00a4 ("phylib: Fix deadlock on resume")
Link: https://lore.kernel.org/netdev/a5315a8a-32c2-962f-f696-de9a26d30091@samsung.com/
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: stable@vger.kernel.org # v2.6.33+
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/b7f386d04e9b5b0e2738f0125743e30676f309ef.1656410895.git.lukas@wunner.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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usbnet provides some helper functions that are also used in
the context of reset() operations. During a reset the other
drivers on a device are unable to operate. As that can be block
drivers, a driver for another interface cannot use paging
in its memory allocations without risking a deadlock.
Use GFP_NOIO in the helpers.
Fixes: 877bd862f32b8 ("usbnet: introduce usbnet 3 command helpers")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20220628093517.7469-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Don't print a misleading header length mismatch error if the i2c call
returns an error. Instead just return the error code without any error
message.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are packets which doesn't have a payload. In that case, the second
i2c_master_read() will have a zero length. But because the NFC
controller doesn't have any data left, it will NACK the I2C read and
-ENXIO will be returned. In case there is no payload, just skip the
second i2c master read.
Fixes: 6be88670fc59 ("NFC: nxp-nci_i2c: Add I2C support to NXP NCI driver")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The irq_of_parse_and_map() returns 0 on failure, not a negative ERRNO.
Reported-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Fixes: caf6e49bf6d0 ("NFC: nfcmrvl: add spi driver")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220627124048.296253-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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syzbot has two reports involving the same root cause.
bond_alb_initialize() must not set bond->alb_info.rlb_enabled
if a memory allocation error is detected.
Report 1:
general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 PID: 12276 Comm: kworker/u4:10 Not tainted 5.19.0-rc3-syzkaller-00132-g3b89b511ea0c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:rlb_clear_slave+0x10e/0x690 drivers/net/bonding/bond_alb.c:393
Code: 8e fc 83 fb ff 0f 84 74 02 00 00 e8 cc 2a 8e fc 48 8b 44 24 08 89 dd 48 c1 e5 06 4c 8d 34 28 49 8d 7e 14 48 89 f8 48 c1 e8 03 <42> 0f b6 14 20 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffffc90018a8f678 EFLAGS: 00010203
RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88803375bb00 RSI: ffffffff84ec4ac4 RDI: 0000000000000014
RBP: 0000000000000000 R08: 0000000000000005 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880ac889000 R14: 0000000000000000 R15: ffff88815a668c80
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005597077e10b0 CR3: 0000000026668000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bond_alb_deinit_slave+0x43c/0x6b0 drivers/net/bonding/bond_alb.c:1663
__bond_release_one.cold+0x383/0xd53 drivers/net/bonding/bond_main.c:2370
bond_slave_netdev_event drivers/net/bonding/bond_main.c:3778 [inline]
bond_netdev_event+0x993/0xad0 drivers/net/bonding/bond_main.c:3889
notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945
call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
call_netdevice_notifiers net/core/dev.c:1997 [inline]
unregister_netdevice_many+0x948/0x18b0 net/core/dev.c:10839
default_device_exit_batch+0x449/0x590 net/core/dev.c:11333
ops_exit_list+0x125/0x170 net/core/net_namespace.c:167
cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>
Report 2:
general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 1 PID: 5206 Comm: syz-executor.1 Not tainted 5.18.0-syzkaller-12108-g58f9d52ff689 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rlb_req_update_slave_clients+0x109/0x2f0 drivers/net/bonding/bond_alb.c:502
Code: 5d 18 8f fc 41 80 3e 00 0f 85 a5 01 00 00 89 d8 48 c1 e0 06 49 03 84 24 68 01 00 00 48 8d 78 30 49 89 c7 48 89 fa 48 c1 ea 03 <80> 3c 2a 00 0f 85 98 01 00 00 4d 39 6f 30 75 83 e8 22 18 8f fc 49
RSP: 0018:ffffc9000300ee80 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90016c11000
RDX: 0000000000000006 RSI: ffffffff84eb6bf3 RDI: 0000000000000030
RBP: dffffc0000000000 R08: 0000000000000005 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888027c80c80
R13: ffff88807d7ff800 R14: ffffed1004f901bd R15: 0000000000000000
FS: 00007f6f46c58700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 00000000516cc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
alb_fasten_mac_swap+0x886/0xa80 drivers/net/bonding/bond_alb.c:1070
bond_alb_handle_active_change+0x624/0x1050 drivers/net/bonding/bond_alb.c:1765
bond_change_active_slave+0xfa1/0x29b0 drivers/net/bonding/bond_main.c:1173
bond_select_active_slave+0x23f/0xa50 drivers/net/bonding/bond_main.c:1253
bond_enslave+0x3b34/0x53b0 drivers/net/bonding/bond_main.c:2159
do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2577
rtnl_newlink_create net/core/rtnetlink.c:3380 [inline]
__rtnl_newlink+0x13ac/0x17e0 net/core/rtnetlink.c:3580
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3593
rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
____sys_sendmsg+0x6eb/0x810 net/socket.c:2492
___sys_sendmsg+0xf3/0x170 net/socket.c:2546
__sys_sendmsg net/socket.c:2575 [inline]
__do_sys_sendmsg net/socket.c:2584 [inline]
__se_sys_sendmsg net/socket.c:2582 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f6f45a89109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6f46c58168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f6f45b9c030 RCX: 00007f6f45a89109
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 00007f6f45ae308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed99029af R14: 00007f6f46c58300 R15: 0000000000022000
</TASK>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20220627102813.126264-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We should respect link partner capabilities and not force flow control
support on every link. Even more, in current state the MAC driver do not
advertises pause support so we should not keep flow control enabled at
all.
Fixes: e532a096be0e ("net: usb: asix: ax88772: add phylib support")
Reported-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: Anton Lundin <glance@acc.umu.se>
Link: https://lore.kernel.org/r/20220624075139.3139300-2-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If cable is attached after probe sequence, the usbnet framework would
not automatically start processing RX packets except at least one
packet was transmitted.
On systems with any kind of address auto configuration this issue was
not detected, because some packets are send immediately after link state
is changed to "running".
With this patch we will notify usbnet about link status change provided by the
PHYlib.
Fixes: e532a096be0e ("net: usb: asix: ax88772: add phylib support")
Reported-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: Anton Lundin <glance@acc.umu.se>
Link: https://lore.kernel.org/r/20220624075139.3139300-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This should be bitwise operator not logical.
Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Shreenidhi Shedi <sshedi@vmware.com>
Link: https://lore.kernel.org/r/20220626132947.3992423-1-sshedi@vmware.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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epic_close() calls epic_rx() and uses dma buffer, but in epic_remove_one()
we already freed the dma buffer. To fix this issue, reorder function calls
like in the .probe function.
BUG: KASAN: use-after-free in epic_rx+0xa6/0x7e0 [epic100]
Call Trace:
epic_rx+0xa6/0x7e0 [epic100]
epic_close+0xec/0x2f0 [epic100]
unregister_netdev+0x18/0x20
epic_remove_one+0xaa/0xf0 [epic100]
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Yilun Wu <yiluwu@cs.stonybrook.edu>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Reviewed-by: Francois Romieu <romieu@fr.zoreil.com>
Link: https://lore.kernel.org/r/20220627043351.25615-1-ztong0001@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
While looking at a syzbot report I noticed the NAPI only gets
disabled before it's deleted. I think that user can detach
the queue before destroying the device and the NAPI will never
be stopped.
Fixes: 943170998b20 ("tun: enable NAPI for TUN/TAP driver")
Acked-by: Petar Penkov <ppenkov@aviatrix.com>
Link: https://lore.kernel.org/r/20220623042105.2274812-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Some RX errors, notably when disconnecting the cable, increase the RCSR
register. Once half full (0x7fff), an interrupt flood is generated. I
measured ~3k/s interrupts even after the RX errors transfer was
stopped.
Since we don't read and clear the RCSR register, we should disable this
interrupt.
Fixes: 87461f7a58ab ("net: phy: DP83822 initial driver submission")
Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
When unplugging an Ethernet cable, false carrier events were produced by
the PHY at a very high rate. Once the false carrier counter full, an
interrupt was triggered every few clock cycles until the cable was
replugged. This resulted in approximately 10k/s interrupts.
Since the false carrier counter (FCSCR) is never used, we can safely
disable this interrupt.
In addition to improving performance, this also solved MDIO read
timeouts I was randomly encountering with an i.MX8 fec MAC because of
the interrupt flood. The interrupt count and MDIO timeout fix were
tested on a v5.4.110 kernel.
Fixes: 87461f7a58ab ("net: phy: DP83822 initial driver submission")
Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Syzbot found a race between tun file and device destruction.
NAPIs live in struct tun_file which can get destroyed before
the netdev so we have to del them explicitly. The current
code is missing deleting the NAPI if the queue was detached
first.
Fixes: 943170998b20 ("tun: enable NAPI for TUN/TAP driver")
Reported-by: syzbot+b75c138e9286ac742647@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20220623042039.2274708-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
The pause settings reported by the PHY should also be applied to the GMII port
status override otherwise the switch will not generate pause frames towards the
link partner despite the advertisement saying otherwise.
Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220623030204.1966851-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
of_find_node_by_name() will decrease the refcount of its first arg and
we need a of_node_get() to keep refcount balance.
Fixes: 7d9ee2e8ff15 ("net: dsa: hellcreek: Add PTP status LEDs")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220622040621.4094304-1-windhl@126.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf and netfilter.
Current release - regressions:
- netfilter: cttimeout: fix slab-out-of-bounds read in
cttimeout_net_exit
Current release - new code bugs:
- bpf: ftrace: keep address offset in ftrace_lookup_symbols
- bpf: force cookies array to follow symbols sorting
Previous releases - regressions:
- ipv4: ping: fix bind address validity check
- tipc: fix use-after-free read in tipc_named_reinit
- eth: veth: add updating of trans_start
Previous releases - always broken:
- sock: redo the psock vs ULP protection check
- netfilter: nf_dup_netdev: fix skb_under_panic
- bpf: fix request_sock leak in sk lookup helpers
- eth: igb: fix a use-after-free issue in igb_clean_tx_ring
- eth: ice: prohibit improper channel config for DCB
- eth: at803x: fix null pointer dereference on AR9331 phy
- eth: virtio_net: fix xdp_rxq_info bug after suspend/resume
Misc:
- eth: hinic: replace memcpy() with direct assignment"
* tag 'net-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
net: openvswitch: fix parsing of nw_proto for IPv6 fragments
sock: redo the psock vs ULP protection check
Revert "net/tls: fix tls_sk_proto_close executed repeatedly"
virtio_net: fix xdp_rxq_info bug after suspend/resume
igb: Make DMA faster when CPU is active on the PCIe link
net: dsa: qca8k: reduce mgmt ethernet timeout
net: dsa: qca8k: reset cpu port on MTU change
MAINTAINERS: Add a maintainer for OCP Time Card
hinic: Replace memcpy() with direct assignment
Revert "drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c"
net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode
ice: ethtool: Prohibit improper channel config for DCB
ice: ethtool: advertise 1000M speeds properly
ice: Fix switchdev rules book keeping
ice: ignore protocol field in GTP offload
netfilter: nf_dup_netdev: add and use recursion counter
netfilter: nf_dup_netdev: do not push mac header a second time
selftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh
net/tls: fix tls_sk_proto_close executed repeatedly
erspan: do not assume transport header is always set
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- mtk-sd: Fix dma hang issues
- sdhci-pci-o2micro: Fix card detect by dealing with debouncing
* tag 'mmc-v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: mediatek: wait dma stop bit reset to 0
mmc: sdhci-pci-o2micro: Fix card detect by dealing with debouncing
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All small changes, mostly device-specific:
- A regression fix for PCM WC-page allocation on x86
- A regression fix for i915 audio component binding
- Fixes for (longstanding) beep handling bug
- Runtime PM fixes for Intel LPE HDMI audio
- A couple of pending FireWire fixes
- Usual HD-audio and USB-audio quirks, new Intel dspconf entries"
* tag 'sound-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Add quirk for Clevo NS50PU
ALSA: hda: Fix discovery of i915 graphics PCI device
ALSA: hda/via: Fix missing beep setup
ALSA: hda/conexant: Fix missing beep setup
ALSA: memalloc: Drop x86-specific hack for WC allocations
ALSA: hda/realtek: Add quirk for Clevo PD70PNT
ALSA: x86: intel_hdmi_audio: use pm_runtime_resume_and_get()
ALSA: x86: intel_hdmi_audio: enable pm_runtime and set autosuspend delay
ALSA: hda: intel-nhlt: remove use of __func__ in dev_dbg
ALSA: hda: intel-dspcfg: use SOF for UpExtreme and UpExtreme11 boards
firewire: convert sysfs sprintf/snprintf family to sysfs_emit
firewire: cdev: fix potential leak of kernel stack due to uninitialized value
ALSA: hda/realtek: Apply fixup for Lenovo Yoga Duet 7 properly
ALSA: hda/realtek - ALC897 headset MIC no sound
ALSA: usb-audio: US16x08: Move overflow check before array access
ALSA: hda/realtek: Add mute LED quirk for HP Omen laptop
|
|
The following sequence currently causes a driver bug warning
when using virtio_net:
# ip link set eth0 up
# echo mem > /sys/power/state (or e.g. # rtcwake -s 10 -m mem)
<resume>
# ip link set eth0 down
Missing register, driver bug
WARNING: CPU: 0 PID: 375 at net/core/xdp.c:138 xdp_rxq_info_unreg+0x58/0x60
Call trace:
xdp_rxq_info_unreg+0x58/0x60
virtnet_close+0x58/0xac
__dev_close_many+0xac/0x140
__dev_change_flags+0xd8/0x210
dev_change_flags+0x24/0x64
do_setlink+0x230/0xdd0
...
This happens because virtnet_freeze() frees the receive_queue
completely (including struct xdp_rxq_info) but does not call
xdp_rxq_info_unreg(). Similarly, virtnet_restore() sets up the
receive_queue again but does not call xdp_rxq_info_reg().
Actually, parts of virtnet_freeze_down() and virtnet_restore_up()
are almost identical to virtnet_close() and virtnet_open(): only
the calls to xdp_rxq_info_(un)reg() are missing. This means that
we can fix this easily and avoid such problems in the future by
just calling virtnet_close()/open() from the freeze/restore handlers.
Aside from adding the missing xdp_rxq_info calls the only difference
is that the refill work is only cancelled if netif_running(). However,
this should not make any functional difference since the refill work
should only be active if the network interface is actually up.
Fixes: 754b8a21a96d ("virtio_net: setup xdp_rxq_info")
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20220621114845.3650258-1-stephan.gerhold@kernkonzept.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-06-21
This series contains updates to ice driver only.
Marcin fixes GTP filters by allowing ignoring of the inner ethertype field.
Wojciech adds VSI handle tracking in order to properly distinguish similar
filters for removal.
Anatolii removes ability to set 1000baseT and 1000baseX fields
concurrently which caused link issues. He also disallows setting
channels to less than the number of Traffic Classes which would cause
NULL pointer dereference.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ice: ethtool: Prohibit improper channel config for DCB
ice: ethtool: advertise 1000M speeds properly
ice: Fix switchdev rules book keeping
ice: ignore protocol field in GTP offload
====================
Link: https://lore.kernel.org/r/20220621224756.631765-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Intel I210 on some Intel Alder Lake platforms can only achieve ~750Mbps
Tx speed via iperf. The RR2DCDELAY shows around 0x2xxx DMA delay, which
will be significantly lower when 1) ASPM is disabled or 2) SoC package
c-state stays above PC3. When the RR2DCDELAY is around 0x1xxx the Tx
speed can reach to ~950Mbps.
According to the I210 datasheet "8.26.1 PCIe Misc. Register - PCIEMISC",
"DMA Idle Indication" doesn't seem to tie to DMA coalesce anymore, so
set it to 1b for "DMA is considered idle when there is no Rx or Tx AND
when there are no TLPs indicating that CPU is active detected on the
PCIe link (such as the host executes CSR or Configuration register read
or write operation)" and performing Tx should also fall under "active
CPU on PCIe link" case.
In addition to that, commit b6e0c419f040 ("igb: Move DMA Coalescing init
code to separate function.") seems to wrongly changed from enabling
E1000_PCIEMISC_LX_DECISION to disabling it, also fix that.
Fixes: b6e0c419f040 ("igb: Move DMA Coalescing init code to separate function.")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220621221056.604304-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
The current mgmt ethernet timeout is set to 100ms. This value is too
big and would slow down any mdio command in case the mgmt ethernet
packet have some problems on the receiving part.
Reduce it to just 5ms to handle case when some operation are done on the
master port that would cause the mgmt ethernet to not work temporarily.
Fixes: 5950c7c0a68c ("net: dsa: qca8k: add support for mgmt read/write in Ethernet packet")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20220621151633.11741-1-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
It was discovered that the Documentation lacks of a fundamental detail
on how to correctly change the MAX_FRAME_SIZE of the switch.
In fact if the MAX_FRAME_SIZE is changed while the cpu port is on, the
switch panics and cease to send any packet. This cause the mgmt ethernet
system to not receive any packet (the slow fallback still works) and
makes the device not reachable. To recover from this a switch reset is
required.
To correctly handle this, turn off the cpu ports before changing the
MAX_FRAME_SIZE and turn on again after the value is applied.
Fixes: f58d2598cf70 ("net: dsa: qca8k: implement the port MTU callbacks")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20220621151122.10220-1-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Under CONFIG_FORTIFY_SOURCE=y and CONFIG_UBSAN_BOUNDS=y, Clang is bugged
here for calculating the size of the destination buffer (0x10 instead of
0x14). This copy is a fixed size (sizeof(struct fw_section_info_st)), with
the source and dest being struct fw_section_info_st, so the memcpy should
be safe, assuming the index is within bounds, which is UBSAN_BOUNDS's
responsibility to figure out.
Avoid the whole thing and just do a direct assignment. This results in
no change to the executable code.
[This is a duplicate of commit 2c0ab32b73cf ("hinic: Replace memcpy()
with direct assignment") which was applied to net-next.]
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Tom Rix <trix@redhat.com>
Cc: llvm@lists.linux.dev
Link: https://github.com/ClangBuiltLinux/linux/issues/1592
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build
Link: https://lore.kernel.org/r/20220616052312.292861-1-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
vxge-main.c"
This reverts commit 8fc74d18639a2402ca52b177e990428e26ea881f.
BAR0 is the main (only?) register bank for this device. We most
obviously can't unmap it before the netdev is unregistered.
This was pointed out in review but the patch got reposted and
merged, anyway.
The author of the patch was only testing it with a QEMU model,
which I presume does not emulate enough for the netdev to be brought
up (author's replies are not visible in lore because they kept sending
their emails in HTML).
Link: https://lore.kernel.org/all/20220616085059.680dc215@kernel.org/
Fixes: 8fc74d18639a ("drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Simon reports that if two LAN9514 USB adapters are directly connected
without an intermediate switch, the link fails to come up and link LEDs
remain dark. The issue was introduced by commit 1ce8b37241ed ("usbnet:
smsc95xx: Forward PHY interrupts to PHY driver to avoid polling").
The PHY suffers from a known erratum wherein link detection becomes
unreliable if Energy Detect Power-Down is used. In poll mode, the
driver works around the erratum by briefly disabling EDPD for 640 msec
to detect a neighbor, then re-enabling it to save power.
In interrupt mode, no interrupt is signaled if EDPD is used by both link
partners, so it must not be enabled at all.
We'll recoup the power savings by enabling SUSPEND1 mode on affected
LAN95xx chips in a forthcoming commit.
Fixes: 1ce8b37241ed ("usbnet: smsc95xx: Forward PHY interrupts to PHY driver to avoid polling")
Reported-by: Simon Han <z.han@kunbus.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/439a3f3168c2f9d44b5fd9bb8d2b551711316be6.1655714438.git.lukas@wunner.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Do not allow setting less channels, than Traffic Classes there are
via ethtool. There must be at least one channel per Traffic Class.
If you set less channels, than Traffic Classes there are, then during
ice_vsi_rebuild there would be allocated only the requested amount
of tx/rx rings in ice_vsi_alloc_arrays. But later in ice_vsi_setup_q_map
there would be requested at least one channel per Traffic Class. This
results in setting num_rxq > alloc_rxq and num_txq > alloc_txq.
Later, there would be a NULL pointer dereference in
ice_vsi_map_rings_to_vectors, because we go beyond of rx_rings or
tx_rings arrays.
Change ice_set_channels() to return error if you try to allocate less
channels, than Traffic Classes there are.
Change ice_vsi_setup_q_map() and ice_vsi_setup_q_map_mqprio() to return
status code instead of void.
Add error handling for ice_vsi_setup_q_map() and
ice_vsi_setup_q_map_mqprio() in ice_vsi_init() and ice_vsi_cfg_tc().
[53753.889983] INFO: Flow control is disabled for this traffic class (0) on this vsi.
[53763.984862] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[53763.992915] PGD 14b45f5067 P4D 0
[53763.996444] Oops: 0002 [#1] SMP NOPTI
[53764.000312] CPU: 12 PID: 30661 Comm: ethtool Kdump: loaded Tainted: GOE --------- - - 4.18.0-240.el8.x86_64 #1
[53764.011825] Hardware name: Intel Corporation WilsonCity/WilsonCity, BIOS WLYDCRB1.SYS.0020.P21.2012150710 12/15/2020
[53764.022584] RIP: 0010:ice_vsi_map_rings_to_vectors+0x7e/0x120 [ice]
[53764.029089] Code: 41 0d 0f b7 b7 12 05 00 00 0f b6 d0 44 29 de 44 0f b7 c6 44 01 c2 41 39 d0 7d 2d 4c 8b 47 28 44 0f b7 ce 83 c6 01 4f 8b 04 c8 <49> 89 48 28 4 c 8b 89 b8 01 00 00 4d 89 08 4c 89 81 b8 01 00 00 44
[53764.048379] RSP: 0018:ff550dd88ea47b20 EFLAGS: 00010206
[53764.053884] RAX: 0000000000000002 RBX: 0000000000000004 RCX: ff385ea42fa4a018
[53764.061301] RDX: 0000000000000006 RSI: 0000000000000005 RDI: ff385e9baeedd018
[53764.068717] RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000004
[53764.076133] R10: 0000000000000002 R11: 0000000000000004 R12: 0000000000000000
[53764.083553] R13: 0000000000000000 R14: ff385e658fdd9000 R15: ff385e9baeedd018
[53764.090976] FS: 000014872c5b5740(0000) GS:ff385e847f100000(0000) knlGS:0000000000000000
[53764.099362] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[53764.105409] CR2: 0000000000000028 CR3: 0000000a820fa002 CR4: 0000000000761ee0
[53764.112851] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[53764.120301] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[53764.127747] PKRU: 55555554
[53764.130781] Call Trace:
[53764.133564] ice_vsi_rebuild+0x611/0x870 [ice]
[53764.138341] ice_vsi_recfg_qs+0x94/0x100 [ice]
[53764.143116] ice_set_channels+0x1a8/0x3e0 [ice]
[53764.147975] ethtool_set_channels+0x14e/0x240
[53764.152667] dev_ethtool+0xd74/0x2a10
[53764.156665] ? __mod_lruvec_state+0x44/0x110
[53764.161280] ? __mod_lruvec_state+0x44/0x110
[53764.165893] ? page_add_file_rmap+0x15/0x170
[53764.170518] ? inet_ioctl+0xd1/0x220
[53764.174445] ? netdev_run_todo+0x5e/0x290
[53764.178808] dev_ioctl+0xb5/0x550
[53764.182485] sock_do_ioctl+0xa0/0x140
[53764.186512] sock_ioctl+0x1a8/0x300
[53764.190367] ? selinux_file_ioctl+0x161/0x200
[53764.195090] do_vfs_ioctl+0xa4/0x640
[53764.199035] ksys_ioctl+0x60/0x90
[53764.202722] __x64_sys_ioctl+0x16/0x20
[53764.206845] do_syscall_64+0x5b/0x1a0
[53764.210887] entry_SYSCALL_64_after_hwframe+0x65/0xca
Fixes: 87324e747fde ("ice: Implement ethtool ops for channels")
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
In current implementation ice_update_phy_type enables all link modes
for selected speed. This approach doesn't work for 1000M speeds,
because both copper (1000baseT) and optical (1000baseX) standards
cannot be enabled at once.
Fix this, by adding the function `ice_set_phy_type_from_speed()`
for 1000M speeds.
Fixes: 48cb27f2fd18 ("ice: Implement handlers for ethtool PHY/link operations")
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
Adding two filters with same matching criteria ends up with
one rule in hardware with act = ICE_FWD_TO_VSI_LIST.
In order to remove them properly we have to keep the
information about vsi handle which is used in VSI bitmap
(ice_adv_fltr_mgmt_list_entry::vsi_list_info::vsi_map).
Fixes: 0d08a441fb1a ("ice: ndo_setup_tc implementation for PF")
Reported-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
Commit 34a897758efe ("ice: Add support for inner etype in switchdev")
added the ability to match on inner ethertype. A side effect of that change
is that it is now impossible to add some filters for protocols which do not
contain inner ethtype field. tc requires the protocol field to be specified
when providing certain other options, e.g. src_ip. This is a problem in
case of GTP - when user wants to specify e.g. src_ip, they also need to
specify protocol in tc command (otherwise tc fails with: Illegal "src_ip").
Because GTP is a tunnel, the protocol field is treated as inner protocol.
GTP does not contain inner ethtype field and the filter cannot be added.
To fix this, ignore the ethertype field in case of GTP filters.
Fixes: 9a225f81f540 ("ice: Support GTP-U and GTP-C offload in switchdev")
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
- remove pointless include of asm/efi.h, which does not exist on ia64
- fix DXE service marshalling prototype for mixed mode
* tag 'efi-urgent-for-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi/x86: libstub: Fix typo in __efi64_argmap* name
efi: sysfb_efi: remove unnecessary <asm/efi.h> include
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Nothing defined in the header is used by drivers/firmware/efi/sysfb_efi.c
but also, including it can lead to build errors when built on arches that
don't have an asm/efi.h header file.
This can happen for example if a driver that is built when COMPILE_TEST is
enabled selects the SYSFB symbol, e.g. on powerpc with allyesconfig:
drivers/firmware/efi/sysfb_efi.c:29:10: fatal error: asm/efi.h: No such file or directory
29 | #include <asm/efi.h>
| ^~~~~~~~~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Eight fixes, all in drivers (ufs, scsi_debug, storvsc, iscsi, ibmvfc).
Apart from the ufs command clearing updates, these are mostly minor
and obvious fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ibmvfc: Store vhost pointer during subcrq allocation
scsi: ibmvfc: Allocate/free queue resource only during probe/remove
scsi: storvsc: Correct reporting of Hyper-V I/O size limits
scsi: ufs: Fix a race between the interrupt handler and the reset handler
scsi: ufs: Support clearing multiple commands at once
scsi: ufs: Simplify ufshcd_clear_cmd()
scsi: iscsi: Exclude zero from the endpoint ID range
scsi: scsi_debug: Fix zone transition to full condition
|
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Check vm_fault->pgoff before using it. When we removed the warning, we
also removed the check.
Fixes: 7b26e4e2119d ("udmabuf: drop WARN_ON() check.")
Reported-by: zdi-disclosures@trendmicro.com
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of interrupt subsystem updates:
Core:
- Ensure runtime power management for chained interrupts
Drivers:
- A collection of OF node refcount fixes
- Unbreak MIPS uniprocessor builds
- Fix xilinx interrupt controller Kconfig dependencies
- Add a missing compatible string to the Uniphier driver"
* tag 'irq-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/loongson-liointc: Use architecture register to get coreid
irqchip/uniphier-aidet: Add compatible string for NX1 SoC
dt-bindings: interrupt-controller/uniphier-aidet: Add bindings for NX1 SoC
irqchip/realtek-rtl: Fix refcount leak in map_interrupts
irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions
irqchip/gic-v3: Fix error handling in gic_populate_ppi_partitions
irqchip/apple-aic: Fix refcount leak in aic_of_ic_init
irqchip/apple-aic: Fix refcount leak in build_fiq_affinity
irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
irqchip/xilinx: Remove microblaze+zynq dependency
genirq: PM: Use runtime PM for chained interrupts
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes for real from Greg KH:
"Let's tag the proper branch this time...
Here are some small char/misc driver fixes for 5.19-rc3 that resolve
some reported issues.
They include:
- mei driver fixes
- comedi driver fix
- rtsx build warning fix
- fsl-mc-bus driver fix
All of these have been in linux-next for a while with no reported
issues"
This is what the merge in commit f0ec9c65a8d6 _should_ have merged, but
Greg fat-fingered the pull request and I got some small changes from
linux-next instead there. Credit to Nathan Chancellor for eagle-eyes.
Link: https://lore.kernel.org/all/Yqywy+Md2AfGDu8v@dev-arch.thelio-3990X/
* tag 'char-misc-5.19-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove()
mei: me: add raptor lake point S DID
mei: hbm: drop capability response on early shutdown
mei: me: set internal pg flag to off on hardware reset
misc: rtsx: Fix clang -Wsometimes-uninitialized in rts5261_init_from_hw()
comedi: vmk80xx: fix expression for tx buffer size
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"MAINTAINERS rectifications and a few minor driver fixes"
* tag 'i2c-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mediatek: Fix an error handling path in mtk_i2c_probe()
i2c: designware: Use standard optional ref clock implementation
MAINTAINERS: core DT include belongs to core
MAINTAINERS: add include/dt-bindings/i2c to I2C SUBSYSTEM HOST DRIVERS
i2c: npcm7xx: Add check for platform_driver_register
MAINTAINERS: Update Synopsys DesignWare I2C to Supported
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Latest kernel will explode on the PHY interrupt config, since it depends
now on allocated priv. So, run probe to allocate priv to fix it.
ar9331_switch ethernet.1:10 lan0 (uninitialized): PHY [!ahb!ethernet@1a000000!mdio!switch@10:00] driver [Qualcomm Atheros AR9331 built-in PHY] (irq=13)
CPU 0 Unable to handle kernel paging request at virtual address 0000000a, epc == 8050e8a8, ra == 80504b34
...
Call Trace:
[<8050e8a8>] at803x_config_intr+0x5c/0xd0
[<80504b34>] phy_request_interrupt+0xa8/0xd0
[<8050289c>] phylink_bringup_phy+0x2d8/0x3ac
[<80502b68>] phylink_fwnode_phy_connect+0x118/0x130
[<8074d8ec>] dsa_slave_create+0x270/0x420
[<80743b04>] dsa_port_setup+0x12c/0x148
[<8074580c>] dsa_register_switch+0xaf0/0xcc0
[<80511344>] ar9331_sw_probe+0x370/0x388
[<8050cb78>] mdio_probe+0x44/0x70
[<804df300>] really_probe+0x200/0x424
[<804df7b4>] __driver_probe_device+0x290/0x298
[<804df810>] driver_probe_device+0x54/0xe4
[<804dfd50>] __device_attach_driver+0xe4/0x130
[<804dcb00>] bus_for_each_drv+0xb4/0xd8
[<804dfac4>] __device_attach+0x104/0x1a4
[<804ddd24>] bus_probe_device+0x48/0xc4
[<804deb44>] deferred_probe_work_func+0xf0/0x10c
[<800a0ffc>] process_one_work+0x314/0x4d4
[<800a17fc>] worker_thread+0x2a4/0x354
[<800a9a54>] kthread+0x134/0x13c
[<8006306c>] ret_from_kernel_thread+0x14/0x1c
Same Issue would affect some other PHYs (QCA8081, QCA9561), so fix it
too.
Fixes: 3265f4218878 ("net: phy: at803x: add fiber support")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The pointer vdev points to a memory region adjacent to a net_device
structure ndev, which is a field of hldev. At line 4740, the invocation
to vxge_device_unregister unregisters device hldev, and it also releases
the memory region pointed by vdev->bar0. At line 4743, the freed memory
region is referenced (i.e., iounmap(vdev->bar0)), resulting in a
use-after-free vulnerability. We can fix the bug by calling iounmap
before vxge_device_unregister.
4721. static void vxge_remove(struct pci_dev *pdev)
4722. {
4723. struct __vxge_hw_device *hldev;
4724. struct vxgedev *vdev;
…
4731. vdev = netdev_priv(hldev->ndev);
…
4740. vxge_device_unregister(hldev);
4741. /* Do not call pci_disable_sriov here, as it
will break child devices */
4742. vxge_hw_device_terminate(hldev);
4743. iounmap(vdev->bar0);
…
4749 vxge_debug_init(vdev->level_trace, "%s:%d
Device unregistered",
4750 __func__, __LINE__);
4751 vxge_debug_entryexit(vdev->level_trace, "%s:%d
Exiting...", __func__,
4752 __LINE__);
4753. }
This is the screenshot when the vulnerability is triggered by using
KASAN. We can see that there is a use-after-free reported by KASAN.
/***************************start**************************/
root@kernel:~# echo 1 > /sys/bus/pci/devices/0000:00:03.0/remove
[ 178.296316] vxge_remove
[ 182.057081]
==================================================================
[ 182.057548] BUG: KASAN: use-after-free in vxge_remove+0xe0/0x15c
[ 182.057760] Read of size 8 at addr ffff888006c76598 by task bash/119
[ 182.057983]
[ 182.058747] CPU: 0 PID: 119 Comm: bash Not tainted 5.18.0 #5
[ 182.058919] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 182.059463] Call Trace:
[ 182.059726] <TASK>
[ 182.060017] dump_stack_lvl+0x34/0x44
[ 182.060316] print_report.cold+0xb2/0x6b7
[ 182.060401] ? kfree+0x89/0x290
[ 182.060478] ? vxge_remove+0xe0/0x15c
[ 182.060545] kasan_report+0xa9/0x120
[ 182.060629] ? vxge_remove+0xe0/0x15c
[ 182.060706] vxge_remove+0xe0/0x15c
[ 182.060793] pci_device_remove+0x5d/0xe0
[ 182.060968] device_release_driver_internal+0xf1/0x180
[ 182.061063] pci_stop_bus_device+0xae/0xe0
[ 182.061150] pci_stop_and_remove_bus_device_locked+0x11/0x20
[ 182.061236] remove_store+0xc6/0xe0
[ 182.061297] ? subordinate_bus_number_show+0xc0/0xc0
[ 182.061359] ? __mutex_lock_slowpath+0x10/0x10
[ 182.061438] ? sysfs_kf_write+0x6d/0xa0
[ 182.061525] kernfs_fop_write_iter+0x1b0/0x260
[ 182.061610] ? sysfs_kf_bin_read+0xf0/0xf0
[ 182.061695] new_sync_write+0x209/0x310
[ 182.061789] ? new_sync_read+0x310/0x310
[ 182.061865] ? cgroup_rstat_updated+0x5c/0x170
[ 182.061937] ? preempt_count_sub+0xf/0xb0
[ 182.061995] ? pick_next_entity+0x13a/0x220
[ 182.062063] ? __inode_security_revalidate+0x44/0x80
[ 182.062155] ? security_file_permission+0x46/0x2a0
[ 182.062230] vfs_write+0x33f/0x3e0
[ 182.062303] ksys_write+0xb4/0x150
[ 182.062369] ? __ia32_sys_read+0x40/0x40
[ 182.062451] do_syscall_64+0x3b/0x90
[ 182.062531] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 182.062894] RIP: 0033:0x7f3f37d17274
[ 182.063558] Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f
80 00 00 00 00 48 8d 05 89 54 0d 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f
05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 41 54 49 89 d4 55 48 89 f5 53
[ 182.063797] RSP: 002b:00007ffd5ba9e178 EFLAGS: 00000246
ORIG_RAX: 0000000000000001
[ 182.064117] RAX: ffffffffffffffda RBX: 0000000000000002
RCX: 00007f3f37d17274
[ 182.064219] RDX: 0000000000000002 RSI: 000055bbec327180
RDI: 0000000000000001
[ 182.064315] RBP: 000055bbec327180 R08: 000000000000000a
R09: 00007f3f37de7cf0
[ 182.064414] R10: 000000000000000a R11: 0000000000000246
R12: 00007f3f37de8760
[ 182.064513] R13: 0000000000000002 R14: 00007f3f37de3760
R15: 0000000000000002
[ 182.064691] </TASK>
[ 182.064916]
[ 182.065224] The buggy address belongs to the physical page:
[ 182.065804] page:00000000ef31e4f4 refcount:0 mapcount:0
mapping:0000000000000000 index:0x0 pfn:0x6c76
[ 182.067419] flags: 0x100000000000000(node=0|zone=1)
[ 182.068997] raw: 0100000000000000 0000000000000000
ffffea00001b1d88 0000000000000000
[ 182.069118] raw: 0000000000000000 0000000000000000
00000000ffffffff 0000000000000000
[ 182.069294] page dumped because: kasan: bad access detected
[ 182.069331]
[ 182.069360] Memory state around the buggy address:
[ 182.070006] ffff888006c76480: ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff
[ 182.070136] ffff888006c76500: ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff
[ 182.070230] >ffff888006c76580: ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff
[ 182.070305] ^
[ 182.070456] ffff888006c76600: ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff
[ 182.070505] ffff888006c76680: ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff
[ 182.070606]
==================================================================
[ 182.071374] Disabling lock debugging due to kernel taint
/*****************************end*****************************/
After fixing the bug as done in the patch, we can find KASAN do not report
the bug and the device(00:03.0) has been successfully removed.
/*****************************start***************************/
root@kernel:~# echo 1 > /sys/bus/pci/devices/0000:00:03.0/remove
root@kernel:~#
/******************************end****************************/
Signed-off-by: Wentao_Liang <Wentao_Liang_g@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
The bonding ARP monitor fails to decrement send_peer_notif, the
number of peer notifications (gratuitous ARP or ND) to be sent. This
results in a continuous series of notifications.
Correct this by decrementing the counter for each notification.
Reported-by: Jonathan Toppins <jtoppins@redhat.com>
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Fixes: b0929915e035 ("bonding: Fix RTNL: assertion failed at net/core/rtnetlink.c for ab arp monitor")
Link: https://lore.kernel.org/netdev/b2fd4147-8f50-bebd-963a-1a3e8d1d9715@redhat.com/
Tested-by: Jonathan Toppins <jtoppins@redhat.com>
Reviewed-by: Jonathan Toppins <jtoppins@redhat.com>
Link: https://lore.kernel.org/r/9400.1655407960@famine
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix the following use-after-free bug in igb_clean_tx_ring routine when
the NIC is running in XDP mode. The issue can be triggered redirecting
traffic into the igb NIC and then closing the device while the traffic
is flowing.
[ 73.322719] CPU: 1 PID: 487 Comm: xdp_redirect Not tainted 5.18.3-apu2 #9
[ 73.330639] Hardware name: PC Engines APU2/APU2, BIOS 4.0.7 02/28/2017
[ 73.337434] RIP: 0010:refcount_warn_saturate+0xa7/0xf0
[ 73.362283] RSP: 0018:ffffc9000081f798 EFLAGS: 00010282
[ 73.367761] RAX: 0000000000000000 RBX: ffffc90000420f80 RCX: 0000000000000000
[ 73.375200] RDX: ffff88811ad22d00 RSI: ffff88811ad171e0 RDI: ffff88811ad171e0
[ 73.382590] RBP: 0000000000000900 R08: ffffffff82298f28 R09: 0000000000000058
[ 73.390008] R10: 0000000000000219 R11: ffffffff82280f40 R12: 0000000000000090
[ 73.397356] R13: ffff888102343a40 R14: ffff88810359e0e4 R15: 0000000000000000
[ 73.404806] FS: 00007ff38d31d740(0000) GS:ffff88811ad00000(0000) knlGS:0000000000000000
[ 73.413129] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 73.419096] CR2: 000055cff35f13f8 CR3: 0000000106391000 CR4: 00000000000406e0
[ 73.426565] Call Trace:
[ 73.429087] <TASK>
[ 73.431314] igb_clean_tx_ring+0x43/0x140 [igb]
[ 73.436002] igb_down+0x1d7/0x220 [igb]
[ 73.439974] __igb_close+0x3c/0x120 [igb]
[ 73.444118] igb_xdp+0x10c/0x150 [igb]
[ 73.447983] ? igb_pci_sriov_configure+0x70/0x70 [igb]
[ 73.453362] dev_xdp_install+0xda/0x110
[ 73.457371] dev_xdp_attach+0x1da/0x550
[ 73.461369] do_setlink+0xfd0/0x10f0
[ 73.465166] ? __nla_validate_parse+0x89/0xc70
[ 73.469714] rtnl_setlink+0x11a/0x1e0
[ 73.473547] rtnetlink_rcv_msg+0x145/0x3d0
[ 73.477709] ? rtnl_calcit.isra.0+0x130/0x130
[ 73.482258] netlink_rcv_skb+0x8d/0x110
[ 73.486229] netlink_unicast+0x230/0x340
[ 73.490317] netlink_sendmsg+0x215/0x470
[ 73.494395] __sys_sendto+0x179/0x190
[ 73.498268] ? move_addr_to_user+0x37/0x70
[ 73.502547] ? __sys_getsockname+0x84/0xe0
[ 73.506853] ? netlink_setsockopt+0x1c1/0x4a0
[ 73.511349] ? __sys_setsockopt+0xc8/0x1d0
[ 73.515636] __x64_sys_sendto+0x20/0x30
[ 73.519603] do_syscall_64+0x3b/0x80
[ 73.523399] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 73.528712] RIP: 0033:0x7ff38d41f20c
[ 73.551866] RSP: 002b:00007fff3b945a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 73.559640] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff38d41f20c
[ 73.567066] RDX: 0000000000000034 RSI: 00007fff3b945b30 RDI: 0000000000000003
[ 73.574457] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
[ 73.581852] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3b945ab0
[ 73.589179] R13: 0000000000000000 R14: 0000000000000003 R15: 00007fff3b945b30
[ 73.596545] </TASK>
[ 73.598842] ---[ end trace 0000000000000000 ]---
Fixes: 9cbc948b5a20c ("igb: add XDP support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/r/e5c01d549dc37bff18e46aeabd6fb28a7bcf84be.1655388571.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv fixes from Wei Liu:
- Fix hv_init_clocksource annotation (Masahiro Yamada)
- Two bug fixes for vmbus driver (Saurabh Sengar)
- Fix SEV negotiation (Tianyu Lan)
- Fix comments in code (Xiang Wang)
- One minor fix to HID driver (Michael Kelley)
* tag 'hyperv-fixes-signed-20220617' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
x86/Hyper-V: Add SEV negotiate protocol support in Isolation VM
Drivers: hv: vmbus: Release cpu lock in error case
HID: hyperv: Correctly access fields declared as __le16
clocksource: hyper-v: unexport __init-annotated hv_init_clocksource()
Drivers: hv: Fix syntax errors in comments
Drivers: hv: vmbus: Don't assign VMbus channel interrupts to isolated CPUs
|