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Commit 8ff978b8b222 ("ipv4/raw: support binding to nonlocal addresses")
introduced a helper function to fold duplicated validity checks of bind
addresses into inet_addr_valid_or_nonlocal(). However, this caused an
unintended regression in ping_check_bind_addr(), which previously would
reject binding to multicast and broadcast addresses, but now these are
both incorrectly allowed as reported in [1].
This patch restores the original check. A simple reordering is done to
improve readability and make it evident that multicast and broadcast
addresses should not be allowed. Also, add an early exit for INADDR_ANY
which replaces lost behavior added by commit 0ce779a9f501 ("net: Avoid
unnecessary inet_addr_type() call when addr is INADDR_ANY").
Furthermore, this patch introduces regression selftests to catch these
specific cases.
[1] https://lore.kernel.org/netdev/CANP3RGdkAcDyAZoT1h8Gtuu0saq+eOrrTiWbxnOs+5zn+cpyKg@mail.gmail.com/
Fixes: 8ff978b8b222 ("ipv4/raw: support binding to nonlocal addresses")
Cc: Miaohe Lin <linmiaohe@huawei.com>
Reported-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Signed-off-by: Riccardo Paolo Bestetti <pbl@bestov.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hulk Robot reports incorrect sp->rx_count_cooked value in decode_std_command().
This should be caused by the subtracting from sp->rx_count_cooked before.
It seems that sp->rx_count_cooked value is changed to 0, which bypassed the
previous judgment.
The situation is shown below:
(Thread 1) | (Thread 2)
decode_std_command() | resync_tnc()
... |
if (rest == 2) |
sp->rx_count_cooked -= 2; |
else if (rest == 3) | ...
| sp->rx_count_cooked = 0;
sp->rx_count_cooked -= 1; |
for (i = 0; i < sp->rx_count_cooked; i++) // report error
checksum += sp->cooked_buf[i];
sp->rx_count_cooked is a shared variable but is not protected by a lock.
The same applies to sp->rx_count. This patch adds a lock to fix the bug.
The fail log is shown below:
=======================================================================
UBSAN: array-index-out-of-bounds in drivers/net/hamradio/6pack.c:925:31
index 400 is out of range for type 'unsigned char [400]'
CPU: 3 PID: 7433 Comm: kworker/u10:1 Not tainted 5.18.0-rc5-00163-g4b97bac0756a #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Workqueue: events_unbound flush_to_ldisc
Call Trace:
<TASK>
dump_stack_lvl+0xcd/0x134
ubsan_epilogue+0xb/0x50
__ubsan_handle_out_of_bounds.cold+0x62/0x6c
sixpack_receive_buf+0xfda/0x1330
tty_ldisc_receive_buf+0x13e/0x180
tty_port_default_receive_buf+0x6d/0xa0
flush_to_ldisc+0x213/0x3f0
process_one_work+0x98f/0x1620
worker_thread+0x665/0x1080
kthread+0x2e9/0x3a0
ret_from_fork+0x1f/0x30
...
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xu Jia <xujia39@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
syzbot found the following issue on:
==================================================================
BUG: KASAN: use-after-free in tipc_named_reinit+0x94f/0x9b0
net/tipc/name_distr.c:413
Read of size 8 at addr ffff88805299a000 by task kworker/1:9/23764
CPU: 1 PID: 23764 Comm: kworker/1:9 Not tainted
5.18.0-rc4-syzkaller-00878-g17d49e6e8012 #0
Hardware name: Google Compute Engine/Google Compute Engine,
BIOS Google 01/01/2011
Workqueue: events tipc_net_finalize_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_address_description.constprop.0.cold+0xeb/0x495
mm/kasan/report.c:313
print_report mm/kasan/report.c:429 [inline]
kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491
tipc_named_reinit+0x94f/0x9b0 net/tipc/name_distr.c:413
tipc_net_finalize+0x234/0x3d0 net/tipc/net.c:138
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:298
</TASK>
[...]
==================================================================
In the commit
d966ddcc3821 ("tipc: fix a deadlock when flushing scheduled work"),
the cancel_work_sync() function just to make sure ONLY the work
tipc_net_finalize_work() is executing/pending on any CPU completed before
tipc namespace is destroyed through tipc_exit_net(). But this function
is not guaranteed the work is the last queued. So, the destroyed instance
may be accessed in the work which will try to enqueue later.
In order to completely fix, we re-order the calling of cancel_work_sync()
to make sure the work tipc_net_finalize_work() was last queued and it
must be completed by calling cancel_work_sync().
Reported-by: syzbot+47af19f3307fc9c5c82e@syzkaller.appspotmail.com
Fixes: d966ddcc3821 ("tipc: fix a deadlock when flushing scheduled work")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 21a75f0915dd ("bonding: Fix ARP monitor validation"),
the bonding ARP / ND link monitors depend on the trans_start time to
determine link availability. NETIF_F_LLTX drivers must update trans_start
directly, which veth does not do. This prevents use of the ARP or ND link
monitors with veth interfaces in a bond.
Resolve this by having veth_xmit update the trans_start time.
Reported-by: Jonathan Toppins <jtoppins@redhat.com>
Tested-by: Jonathan Toppins <jtoppins@redhat.com>
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Fixes: 21a75f0915dd ("bonding: Fix ARP monitor validation")
Link: https://lore.kernel.org/netdev/b2fd4147-8f50-bebd-963a-1a3e8d1d9715@redhat.com/
Signed-off-by: David S. Miller <davem@davemloft.net>
Even when the eth port is resticted to work with speeds not higher than 1G,
and so the eth driver is requesting the phy (via phylink) to advertise up
to 1000BASET support, the aquantia phy device is still advertising for 2.5G
and 5G speeds.
Clear these advertising defaults when requested.
Cc: Ondrej Spacek <ondrej.spacek@nxp.com>
Fixes: 09c4c57f7bc41 ("net: phy: aquantia: add support for auto-negotiation configuration")
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://lore.kernel.org/r/20220610084037.7625-1-claudiu.manoil@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- Revert "net: Add a second bind table hashed by port and address",
needs more work
- amd-xgbe: use platform_irq_count(), static setup of IRQ resources
had been removed from DT core
- dts: at91: ksz9477_evb: add phy-mode to fix port/phy validation
Current release - new code bugs:
- hns3: modify the ring param print info
Previous releases - always broken:
- axienet: make the 64b addressable DMA depends on 64b architectures
- iavf: fix issue with MAC address of VF shown as zero
- ice: fix PTP TX timestamp offset calculation
- usb: ax88179_178a needs FLAG_SEND_ZLP
Misc:
- document some net.sctp.* sysctls
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Mostly driver fixes.
Current release - regressions:
- Revert "net: Add a second bind table hashed by port and address",
needs more work
- amd-xgbe: use platform_irq_count(), static setup of IRQ resources
had been removed from DT core
- dts: at91: ksz9477_evb: add phy-mode to fix port/phy validation
Current release - new code bugs:
- hns3: modify the ring param print info
Previous releases - always broken:
- axienet: make the 64b addressable DMA depends on 64b architectures
- iavf: fix issue with MAC address of VF shown as zero
- ice: fix PTP TX timestamp offset calculation
- usb: ax88179_178a needs FLAG_SEND_ZLP
Misc:
- document some net.sctp.* sysctls"
* tag 'net-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (31 commits)
net: axienet: add missing error return code in axienet_probe()
Revert "net: Add a second bind table hashed by port and address"
net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg
net: usb: ax88179_178a needs FLAG_SEND_ZLP
MAINTAINERS: add include/dt-bindings/net to NETWORKING DRIVERS
ARM: dts: at91: ksz9477_evb: fix port/phy validation
net: bgmac: Fix an erroneous kfree() in bgmac_remove()
ice: Fix memory corruption in VF driver
ice: Fix queue config fail handling
ice: Sync VLAN filtering features for DVM
ice: Fix PTP TX timestamp offset calculation
mlxsw: spectrum_cnt: Reorder counter pools
docs: networking: phy: Fix a typo
amd-xgbe: Use platform_irq_count()
octeontx2-vf: Add support for adaptive interrupt coalescing
xilinx: Fix build on x86.
net: axienet: Use iowrite64 to write all 64b descriptor pointers
net: axienet: make the 64b addresable DMA depends on 64b archectures
net: hns3: fix tm port shapping of fibre port is incorrect after driver initialization
net: hns3: fix PF rss size initialization bug
...
It should return error code in error path in axienet_probe().
Fixes: 00be43a74ca2 ("net: axienet: make the 64b addresable DMA depends on 64b archectures")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220616062917.3601-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Two fixes for rc1 PR.
BR, Jarkko
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Merge tag 'tpmdd-next-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm fixes from Jarkko Sakkinen:
"Two fixes for this merge window"
* tag 'tpmdd-next-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
certs: fix and refactor CONFIG_SYSTEM_BLACKLIST_HASH_LIST build
certs/blacklist_hashes.c: fix const confusion in certs blacklist
Commit addf466389d9 ("certs: Check that builtin blacklist hashes are
valid") was applied 8 months after the submission.
In the meantime, the base code had been removed by commit b8c96a6b466c
("certs: simplify $(srctree)/ handling and remove config_filename
macro").
Fix the Makefile.
Create a local copy of $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST). It is
included from certs/blacklist_hashes.c and also works as a timestamp.
Send error messages from check-blacklist-hashes.awk to stderr instead
of stdout.
Fixes: addf466389d9 ("certs: Check that builtin blacklist hashes are valid")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Mickaël Salaün <mic@linux.microsoft.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
This file fails to compile as follows:
CC certs/blacklist_hashes.o
certs/blacklist_hashes.c:4:1: error: ignoring attribute ‘section (".init.data")’ because it conflicts with previous ‘section (".init.rodata")’ [-Werror=attributes]
4 | const char __initdata *const blacklist_hashes[] = {
| ^~~~~
In file included from certs/blacklist_hashes.c:2:
certs/blacklist.h:5:38: note: previous declaration here
5 | extern const char __initconst *const blacklist_hashes[];
| ^~~~~~~~~~~~~~~~
Apply the same fix as commit 2be04df5668d ("certs/blacklist_nohashes.c:
fix const confusion in certs blacklist").
Fixes: 734114f8782f ("KEYS: Add a system blacklist keyring")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Mickaël Salaün <mic@linux.microsoft.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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Merge tag 'fs.fixes.v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull vfs idmapping fix from Christian Brauner:
"This fixes an issue where we fail to change the group of a file when
the caller owns the file and is a member of the group to change to.
This is only relevant on idmapped mounts.
There's a detailed description in the commit message and regression
tests have been added to xfstests"
* tag 'fs.fixes.v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
fs: account for group membership
The skb_recv_datagram() in ax25_recvmsg() will hold lock_sock
and block until it receives a packet from the remote. If the client
doesn`t connect to server and calls read() directly, it will not
receive any packets forever. As a result, the deadlock will happen.
The fail log caused by deadlock is shown below:
[ 369.606973] INFO: task ax25_deadlock:157 blocked for more than 245 seconds.
[ 369.608919] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 369.613058] Call Trace:
[ 369.613315] <TASK>
[ 369.614072] __schedule+0x2f9/0xb20
[ 369.615029] schedule+0x49/0xb0
[ 369.615734] __lock_sock+0x92/0x100
[ 369.616763] ? destroy_sched_domains_rcu+0x20/0x20
[ 369.617941] lock_sock_nested+0x6e/0x70
[ 369.618809] ax25_bind+0xaa/0x210
[ 369.619736] __sys_bind+0xca/0xf0
[ 369.620039] ? do_futex+0xae/0x1b0
[ 369.620387] ? __x64_sys_futex+0x7c/0x1c0
[ 369.620601] ? fpregs_assert_state_consistent+0x19/0x40
[ 369.620613] __x64_sys_bind+0x11/0x20
[ 369.621791] do_syscall_64+0x3b/0x90
[ 369.622423] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 369.623319] RIP: 0033:0x7f43c8aa8af7
[ 369.624301] RSP: 002b:00007f43c8197ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
[ 369.625756] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f43c8aa8af7
[ 369.626724] RDX: 0000000000000010 RSI: 000055768e2021d0 RDI: 0000000000000005
[ 369.628569] RBP: 00007f43c8197f00 R08: 0000000000000011 R09: 00007f43c8198700
[ 369.630208] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff845e6afe
[ 369.632240] R13: 00007fff845e6aff R14: 00007f43c8197fc0 R15: 00007f43c8198700
This patch replaces skb_recv_datagram() with an open-coded variant of it
releasing the socket lock before the __skb_wait_for_more_packets() call
and re-acquiring it after such call in order that other functions that
need socket lock could be executed.
what's more, the socket lock will be released only when recvmsg() will
block and that should produce nicer overall behavior.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Suggested-by: Thomas Osterried <thomas@osterried.de>
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reported-by: Thomas Habets <thomas@@habets.se>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The extra byte inserted by usbnet.c when
(length % dev->maxpacket == 0) is causing problems to device.
This patch sets FLAG_SEND_ZLP to avoid this.
Tested with: 0b95:1790 ASIX Electronics Corp. AX88179 Gigabit Ethernet
Problems observed:
======================================================================
1) Using ssh/sshfs. The remote sshd daemon can abort with the message:
"message authentication code incorrect"
This happens because the tcp message sent is corrupted during the
USB "Bulk out". The device calculate the tcp checksum and send a
valid tcp message to the remote sshd. Then the encryption detects
the error and aborts.
2) NETDEV WATCHDOG: ... (ax88179_178a): transmit queue 0 timed out
3) Stop normal work without any log message.
The "Bulk in" continue receiving packets normally.
The host sends "Bulk out" and the device responds with -ECONNRESET.
(The netusb.c code tx_complete ignore -ECONNRESET)
Under normal conditions these errors take days to happen and in
intense usage take hours.
A test with ping gives packet loss, showing that something is wrong:
ping -4 -s 462 {destination} # 462 = 512 - 42 - 8
Not all packets fail.
My guess is that the device tries to find another packet starting
at the extra byte and will fail or not depending on the next
bytes (old buffer content).
======================================================================
Signed-off-by: Jose Alonso <joalonsof@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-06-14
This series contains updates to ice driver only.
Michal fixes incorrect Tx timestamp offset calculation for E822 devices.
Roman enforces required VLAN filtering settings for double VLAN mode.
Przemyslaw fixes memory corruption issues with VFs by ensuring
queues are disabled in the error path of VF queue configuration and to
disabled VFs during reset.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Maintainers of the directory Documentation/devicetree/bindings/net
are also the maintainers of the corresponding directory
include/dt-bindings/net.
Add the file entry for include/dt-bindings/net to the appropriate
section in MAINTAINERS.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220613121826.11484-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Latest drivers version requires phy-mode to be set. Otherwise we will
use "NA" mode and the switch driver will invalidate this port mode.
Fixes: 65ac79e18120 ("net: dsa: microchip: add the phylink get_caps")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20220610081621.584393-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
'bgmac' is part of a managed resource allocated with bgmac_alloc(). It
should not be freed explicitly.
Remove the erroneous kfree() from the .remove() function.
Fixes: 34a5102c3235 ("net: bgmac: allocate struct bgmac just once & don't copy it")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/a026153108dd21239036a032b95c25b5cece253b.1655153616.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit e81fb4198e27 ("netfs: Further cleanups after struct netfs_inode
wrapper introduced") changed the argument types and names, and actually
updated the comment too (although that was thanks to David Howells, not
me: my original patch only changed the code).
But the comment fixup didn't go quite far enough, and didn't change the
argument name in the comment, resulting in
include/linux/netfs.h:314: warning: Function parameter or member 'ctx' not described in 'netfs_inode_init'
include/linux/netfs.h:314: warning: Excess function parameter 'inode' description in 'netfs_inode_init'
during htmldoc generation.
Fixes: e81fb4198e27 ("netfs: Further cleanups after struct netfs_inode wrapper introduced")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Disable VF's RX/TX queues, when VIRTCHNL_OP_CONFIG_VSI_QUEUES fail.
Not disabling them might lead to scenario, where PF driver leaves VF
queues enabled, when VF's VSI failed queue config.
In this scenario VF should not have RX/TX queues enabled. If PF failed
to set up VF's queues, VF will reset due to TX timeouts in VF driver.
Initialize iterator 'i' to -1, so if error happens prior to configuring
queues then error path code will not disable queue 0. Loop that
configures queues will is using same iterator, so error path code will
only disable queues that were configured.
Fixes: 77ca27c41705 ("ice: add support for virtchnl_queue_select.[tx|rx]_queues bitmap")
Suggested-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
VLAN filtering features, that is C-Tag and S-Tag, in DVM mode must be
both enabled or disabled.
In case of turning off/on only one of the features, another feature must
be turned off/on automatically with issuing an appropriate message to
the kernel log.
Fixes: 1babaf77f49d ("ice: Advertise 802.1ad VLAN filtering and offloads for PF netdev")
Signed-off-by: Roman Storozhenko <roman.storozhenko@intel.com>
Co-developed-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
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>
The offset was being incorrectly calculated for E822 - that led to
collisions in choosing TX timestamp register location when more than
one port was trying to use timestamping mechanism.
In E822 one quad is being logically split between ports, so quad 0 is
having trackers for ports 0-3, quad 1 ports 4-7 etc. Each port should
have separate memory location for tracking timestamps. Due to error for
example ports 1 and 2 had been assigned to quad 0 with same offset (0),
while port 1 should have offset 0 and 1 offset 16.
Fix it by correctly calculating quad offset.
Fixes: 3a7496234d17 ("ice: implement basic E822 PTP support")
Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
* Properly reset the SVE/SME flags on vcpu load
* Fix a vgic-v2 regression regarding accessing the pending
state of a HW interrupt from userspace (and make the code
common with vgic-v3)
* Fix access to the idreg range for protected guests
* Ignore 'kvm-arm.mode=protected' when using VHE
* Return an error from kvm_arch_init_vm() on allocation failure
* A bunch of small cleanups (comments, annotations, indentation)
RISC-V:
* Typo fix in arch/riscv/kvm/vmid.c
* Remove broken reference pattern from MAINTAINERS entry
x86-64:
* Fix error in page tables with MKTME enabled
* Dirty page tracking performance test extended to running a nested
guest
* Disable APICv/AVIC in cases that it cannot implement correctly
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"While last week's pull request contained miscellaneous fixes for x86,
this one covers other architectures, selftests changes, and a bigger
series for APIC virtualization bugs that were discovered during 5.20
development. The idea is to base 5.20 development for KVM on top of
this tag.
ARM64:
- Properly reset the SVE/SME flags on vcpu load
- Fix a vgic-v2 regression regarding accessing the pending state of a
HW interrupt from userspace (and make the code common with vgic-v3)
- Fix access to the idreg range for protected guests
- Ignore 'kvm-arm.mode=protected' when using VHE
- Return an error from kvm_arch_init_vm() on allocation failure
- A bunch of small cleanups (comments, annotations, indentation)
RISC-V:
- Typo fix in arch/riscv/kvm/vmid.c
- Remove broken reference pattern from MAINTAINERS entry
x86-64:
- Fix error in page tables with MKTME enabled
- Dirty page tracking performance test extended to running a nested
guest
- Disable APICv/AVIC in cases that it cannot implement correctly"
[ This merge also fixes a misplaced end parenthesis bug introduced in
commit 3743c2f02517 ("KVM: x86: inhibit APICv/AVIC on changes to APIC
ID or APIC base") pointed out by Sean Christopherson ]
Link: https://lore.kernel.org/all/20220610191813.371682-1-seanjc@google.com/
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (34 commits)
KVM: selftests: Restrict test region to 48-bit physical addresses when using nested
KVM: selftests: Add option to run dirty_log_perf_test vCPUs in L2
KVM: selftests: Clean up LIBKVM files in Makefile
KVM: selftests: Link selftests directly with lib object files
KVM: selftests: Drop unnecessary rule for STATIC_LIBS
KVM: selftests: Add a helper to check EPT/VPID capabilities
KVM: selftests: Move VMX_EPT_VPID_CAP_AD_BITS to vmx.h
KVM: selftests: Refactor nested_map() to specify target level
KVM: selftests: Drop stale function parameter comment for nested_map()
KVM: selftests: Add option to create 2M and 1G EPT mappings
KVM: selftests: Replace x86_page_size with PG_LEVEL_XX
KVM: x86: SVM: fix nested PAUSE filtering when L0 intercepts PAUSE
KVM: x86: SVM: drop preempt-safe wrappers for avic_vcpu_load/put
KVM: x86: disable preemption around the call to kvm_arch_vcpu_{un|}blocking
KVM: x86: disable preemption while updating apicv inhibition
KVM: x86: SVM: fix avic_kick_target_vcpus_fast
KVM: x86: SVM: remove avic's broken code that updated APIC ID
KVM: x86: inhibit APICv/AVIC on changes to APIC ID or APIC base
KVM: x86: document AVIC/APICv inhibit reasons
KVM: x86/mmu: Set memory encryption "value", not "mask", in shadow PDPTRs
...
Stale Data.
They are a class of MMIO-related weaknesses which can expose stale data
by propagating it into core fill buffers. Data which can then be leaked
using the usual speculative execution methods.
Mitigations include this set along with microcode updates and are
similar to MDS and TAA vulnerabilities: VERW now clears those buffers
too.
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Merge tag 'x86-bugs-2022-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MMIO stale data fixes from Thomas Gleixner:
"Yet another hw vulnerability with a software mitigation: Processor
MMIO Stale Data.
They are a class of MMIO-related weaknesses which can expose stale
data by propagating it into core fill buffers. Data which can then be
leaked using the usual speculative execution methods.
Mitigations include this set along with microcode updates and are
similar to MDS and TAA vulnerabilities: VERW now clears those buffers
too"
* tag 'x86-bugs-2022-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation/mmio: Print SMT warning
KVM: x86/speculation: Disable Fill buffer clear within guests
x86/speculation/mmio: Reuse SRBDS mitigation for SBDS
x86/speculation/srbds: Update SRBDS mitigation selection
x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data
x86/speculation/mmio: Enable CPU Fill buffer clearing on idle
x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations
x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data
x86/speculation: Add a common function for MD_CLEAR mitigation update
x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug
Documentation: Add documentation for Processor MMIO Stale Data
Both RIF and ACL flow counters use a 24-bit SW-managed counter address to
communicate which counter they want to bind.
In a number of Spectrum FW releases, binding a RIF counter is broken and
slices the counter index to 16 bits. As a result, on Spectrum-2 and above,
no more than about 410 RIF counters can be effectively used. This
translates to 205 netdevices for which L3 HW stats can be enabled. (This
does not happen on Spectrum-1, because there are fewer counters available
overall and the counter index never exceeds 16 bits.)
Binding counters to ACLs does not have this issue. Therefore reorder the
counter allocation scheme so that RIF counters come first and therefore get
lower indices that are below the 16-bit barrier.
Fixes: 98e60dce4da1 ("Merge branch 'mlxsw-Introduce-initial-Spectrum-2-support'")
Reported-by: Maksym Yaremchuk <maksymy@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20220613125017.2018162-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When calling setattr_prepare() to determine the validity of the
attributes the ia_{g,u}id fields contain the value that will be written
to inode->i_{g,u}id. This is exactly the same for idmapped and
non-idmapped mounts and allows callers to pass in the values they want
to see written to inode->i_{g,u}id.
When group ownership is changed a caller whose fsuid owns the inode can
change the group of the inode to any group they are a member of. When
searching through the caller's groups we need to use the gid mapped
according to the idmapped mount otherwise we will fail to change
ownership for unprivileged users.
Consider a caller running with fsuid and fsgid 1000 using an idmapped
mount that maps id 65534 to 1000 and 65535 to 1001. Consequently, a file
owned by 65534:65535 in the filesystem will be owned by 1000:1001 in the
idmapped mount.
The caller now requests the gid of the file to be changed to 1000 going
through the idmapped mount. In the vfs we will immediately map the
requested gid to the value that will need to be written to inode->i_gid
and place it in attr->ia_gid. Since this idmapped mount maps 65534 to
1000 we place 65534 in attr->ia_gid.
When we check whether the caller is allowed to change group ownership we
first validate that their fsuid matches the inode's uid. The
inode->i_uid is 65534 which is mapped to uid 1000 in the idmapped mount.
Since the caller's fsuid is 1000 we pass the check.
We now check whether the caller is allowed to change inode->i_gid to the
requested gid by calling in_group_p(). This will compare the passed in
gid to the caller's fsgid and search the caller's additional groups.
Since we're dealing with an idmapped mount we need to pass in the gid
mapped according to the idmapped mount. This is akin to checking whether
a caller is privileged over the future group the inode is owned by. And
that needs to take the idmapped mount into account. Note, all helpers
are nops without idmapped mounts.
New regression test sent to xfstests.
Link: https://github.com/lxc/lxd/issues/10537
Link: https://lore.kernel.org/r/20220613111517.2186646-1-brauner@kernel.org
Fixes: 2f221d6f7b88 ("attr: handle idmapped mounts")
Cc: Seth Forshee <sforshee@digitalocean.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org # 5.15+
CC: linux-fsdevel@vger.kernel.org
Reviewed-by: Seth Forshee <sforshee@digitalocean.com>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
The AMD XGbE driver currently counts the number of interrupts assigned
to the device by inspecting the pdev->resource array. Since commit
a1a2b7125e10 ("of/platform: Drop static setup of IRQ resource from DT
core") removed IRQs from this array, the driver now attempts to get all
interrupts from 1 to -1U and gives up probing once it reaches an invalid
interrupt index.
Obtain the number of IRQs with platform_irq_count() instead.
Fixes: a1a2b7125e10 ("of/platform: Drop static setup of IRQ resource from DT core")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20220609161457.69614-1-jean-philippe@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If 'n' is so large that it's negative, we might wrap around and mistakenly
think that the copy is OK when it's not. Such a copy would probably
crash, but just doing the arithmetic in a more simple way lets us detect
and refuse this case.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220612213227.3881769-4-willy@infradead.org
Get rid of a lot of annoying casts by setting 'addr' once at the top
of the function.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220612213227.3881769-3-willy@infradead.org
vmalloc does not allocate a vm_struct for vm_map_ram() areas. That causes
us to deny usercopies from those areas. This affects XFS which uses
vm_map_ram() for its directories.
Fix this by calling find_vmap_area() instead of find_vm_area().
Fixes: 0aef499f3172 ("mm/usercopy: Detect vmalloc overruns")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220612213227.3881769-2-willy@infradead.org
RCU_NONIDLE usage during __cfi_slowpath_diag can result in an invalid
RCU state in the cpuidle code path:
WARNING: CPU: 1 PID: 0 at kernel/rcu/tree.c:613 rcu_eqs_enter+0xe4/0x138
...
Call trace:
rcu_eqs_enter+0xe4/0x138
rcu_idle_enter+0xa8/0x100
cpuidle_enter_state+0x154/0x3a8
cpuidle_enter+0x3c/0x58
do_idle.llvm.6590768638138871020+0x1f4/0x2ec
cpu_startup_entry+0x28/0x2c
secondary_start_kernel+0x1b8/0x220
__secondary_switched+0x94/0x98
Instead, call rcu_irq_enter/exit to wake up RCU only when needed and
disable interrupts for the entire CFI shadow/module check when we do.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20220531175910.890307-1-samitolvanen@google.com
Fixes: cf68fffb66d6 ("add support for Clang CFI")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Fixes: 6e144b47f560 (octeontx2-pf: Add support for adaptive interrupt coalescing)
Added support for VF interfaces as well.
Signed-off-by: Suman Ghosh <sumang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CONFIG_64BIT is not sufficient for checking for availability of
iowrite64() and friends.
Also, the out_addr helpers need to be inline.
Fixes: b690f8df6497 ("net: axienet: Use iowrite64 to write all 64b descriptor pointers")
Signed-off-by: David S. Miller <davem@davemloft.net>
Andy Chiu says:
====================
net: axienet: fix DMA Tx error
We ran into multiple DMA TX errors while writing files over a network
block device running on top of a DMA-connected AXI Ethernet device on
64-bit RISC-V machines. The errors indicated that the DMA had fetched a
null descriptor and we found that the reason for this is that AXI DMA had
unexpectedly processed a partially updated tail descriptor pointer. To
fix it, we suggest that the driver should use one 64-bit write instead
of two 32-bit writes to perform such update if possible. For those
archectures where double-word load/stores are unavailable, e.g. 32-bit
archectures, force a driver probe failure if the driver finds 64-bit
capability on DMA.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
According to commit f735c40ed93c ("net: axienet: Autodetect 64-bit DMA
capability") and AXI-DMA spec (pg021), on 64-bit capable dma, only
writing MSB part of tail descriptor pointer causes DMA engine to start
fetching descriptors. However, we found that it is true only if dma is in
idle state. In other words, dma would use a tailp even if it only has LSB
updated, when the dma is running.
The non-atomicity of this behavior could be problematic if enough
delay were introduced in between the 2 writes. For example, if an
interrupt comes right after the LSB write and the cpu spends long
enough time in the handler for the dma to get back into idle state by
completing descriptors, then the seconcd write to MSB would treat dma
to start fetching descriptors again. Since the descriptor next to the
one pointed by current tail pointer is not filled by the kernel yet,
fetching a null descriptor here causes a dma internal error and halt
the dma engine down.
We suggest that the dma engine should start process a 64-bit MMIO write
to the descriptor pointer only if ONE 32-bit part of it is written on all
states. Or we should restrict the use of 64-bit addressable dma on 32-bit
platforms, since those devices have no instruction to guarantee the write
to LSB and MSB part of tail pointer occurs atomically to the dma.
initial condition:
curp = x-3;
tailp = x-2;
LSB = x;
MSB = 0;
cpu: |dma:
iowrite32(LSB, tailp) | completes #(x-3) desc, curp = x-3
... | tailp updated
=> irq | completes #(x-2) desc, curp = x-2
... | completes #(x-1) desc, curp = x-1
... | ...
... | completes #x desc, curp = tailp = x
<= irqreturn | reaches tailp == curp = x, idle
iowrite32(MSB, tailp + 4) | ...
| tailp updated, starts fetching...
| fetches #(x + 1) desc, sees cntrl = 0
| post Tx error, halt
Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reported-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently it is not safe to config the IP as 64-bit addressable on 32-bit
archectures, which cannot perform a double-word store on its descriptor
pointers. The pointer is 64-bit wide if the IP is configured as 64-bit,
and the device would process the partially updated pointer on some
states if the pointer was updated via two store-words. To prevent such
condition, we force a probe fail if we discover that the IP has 64-bit
capability but it is not running on a 64-Bit kernel.
This is a series of patch (1/2). The next patch must be applied in order
to make 64b DMA safe on 64b archectures.
Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reported-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guangbin Huang says:
====================
net: hns3: add some fixes for -net
This series adds some fixes for the HNS3 ethernet driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently in driver initialization process, driver will set shapping
parameters of tm port to default speed read from firmware. However, the
speed of SFP module may not be default speed, so shapping parameters of
tm port may be incorrect.
To fix this problem, driver sets new shapping parameters for tm port
after getting exact speed of SFP module in this case.
Fixes: 88d10bd6f730 ("net: hns3: add support for multiple media type")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently hns3 driver misuses the VF rss size to initialize the PF rss size
in hclge_tm_vport_tc_info_update. So this patch fix it by checking the
vport id before initialization.
Fixes: 7347255ea389 ("net: hns3: refactor PF rss get APIs with new common rss get APIs")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, settings parameters of schedule mode, dwrr, shaper of tm
priority or qset of one tc are only be set when tc is enabled, they are
not restored to the default settings when tc is disabled. It confuses
users when they cat tm_priority or tm_qset files of debugfs. So this
patch fixes it.
Fixes: 848440544b41 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently tx push is also a ring param. So the original ring param print
info in hns3_is_ringparam_changed should be adjusted.
Fixes: 07fdc163ac88 ("net: hns3: refactor hns3_set_ringparam()")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's unnecessary to push link state to unalive VF, and the VF will
query link state from PF when it being start works.
Fixes: 18b6e31f8bf4 ("net: hns3: PF add support for pushing link status to VFs")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When modify port base vlan, the port base vlan tbl_sta needs to set to
false before removing old vlan, to indicate this operation is not finish.
Fixes: c0f46de30c96 ("net: hns3: fix port base vlan add fail when concurrent with reset")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Highlights:
- Fix hp-wmi regression on HP Omen laptops introduced in 5.18
- Several hardware-id additions
- A couple of other tiny fixes
The following is an automated git shortlog grouped by driver:
barco-p50-gpio:
- Add check for platform_driver_register
gigabyte-wmi:
- Add support for B450M DS3H-CF
- Add Z690M AORUS ELITE AX DDR4 support
hp-wmi:
- Use zero insize parameter only when supported
- Resolve WMI query failures on some devices
platform/mellanox:
- Add static in struct declaration.
- Spelling s/platfom/platform/
platform/x86/intel:
- hid: Add Surface Go to VGBS allow list
- pmc: Support Intel Raptorlake P
- Fix pmt_crashlog array reference
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Merge tag 'platform-drivers-x86-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Highlights:
- Fix hp-wmi regression on HP Omen laptops introduced in 5.18
- Several hardware-id additions
- A couple of other tiny fixes"
* tag 'platform-drivers-x86-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86/intel: hid: Add Surface Go to VGBS allow list
platform/x86: hp-wmi: Use zero insize parameter only when supported
platform/x86: hp-wmi: Resolve WMI query failures on some devices
platform/x86: gigabyte-wmi: Add support for B450M DS3H-CF
platform/x86: gigabyte-wmi: Add Z690M AORUS ELITE AX DDR4 support
platform/x86: barco-p50-gpio: Add check for platform_driver_register
platform/x86/intel: pmc: Support Intel Raptorlake P
platform/x86/intel: Fix pmt_crashlog array reference
platform/mellanox: Add static in struct declaration.
platform/mellanox: Spelling s/platfom/platform/
Tetsuo's patch to trigger build warnings if system-wide wq's are flushed
along with a TP type update and trivial comment update.
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Merge tag 'wq-for-5.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
"Tetsuo's patch to trigger build warnings if system-wide wq's are
flushed along with a TP type update and trivial comment update"
* tag 'wq-for-5.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Switch to new kerneldoc syntax for named variable macro argument
workqueue: Fix type of cpu in trace event
workqueue: Wrap flush_workqueue() using a macro
