Harden CMD_SUBMIT path to handle malicious input that could trigger
large memory allocations. Add checks to validate transfer_buffer_length
and number_of_packets to protect against bad input requesting for
unbounded memory allocations. Validate early in get_pipe() and return
failure.
Reported-by: Secunia Research <vuln@secunia.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
get_pipe() routine doesn't validate the input endpoint number
and uses to reference ep_in and ep_out arrays. Invalid endpoint
number can trigger BUG(). Range check the epnum and returning
error instead of calling BUG().
Change caller stub_recv_cmd_submit() to handle the get_pipe()
error return.
Reported-by: Secunia Research <vuln@secunia.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes following build error:
vhci_driver.c: In function 'refresh_imported_device_list':
vhci_driver.c:118:37: error: 'snprintf' output may be truncated before
the last format character [-Werror=format-truncation=]
snprintf(status, sizeof(status), "status.%d", i);
^~~~~~~~~~~
vhci_driver.c:118:4: note: 'snprintf' output between 9 and 18 bytes into
a destination of size 17
snprintf(status, sizeof(status), "status.%d", i);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Signed-off-by: Julien BOIBESSOT <julien.boibessot@armadeus.com>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is another JMS567-based USB3 UAS enclosure (152d:0578) that fails
with the following error:
[sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[sda] tag#0 Sense Key : Illegal Request [current]
[sda] tag#0 Add. Sense: Invalid field in cdb
The issue occurs both with UAS (occasionally) and mass storage
(immediately after mounting a FS on a disk in the enclosure).
Enabling US_FL_BROKEN_FUA quirk solves this issue.
This patch adds an UNUSUAL_DEV with US_FL_BROKEN_FUA for the enclosure
for both UAS and mass storage.
Signed-off-by: David Kozub <zub@linux.fjfi.cvut.cz>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When babble condition happens, the musb controller might automatically
turns off VBUS. On DA8xx platform, the controller generates drvvbus
interrupt for turning off VBUS along with the babble interrupt.
In this case, we should handle the babble interrupt first and recover
from the babble condition.
This change ignores the drvvbus interrupt if babble interrupt is also
generated at the same time, so the babble recovery routine works
properly.
Cc: stable@vger.kernel.org # v3.16+
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here are a few minor USB fixes for 4.15-rc3.
The largest here is the Kconfig text and configuration changes for the
USB TypeC build options that you reported during the -rc1 merge window.
The others are all just small fixes for reported issues, as well as some
new device ids.
The most "interesting" of anything here is the usbip fixes as it seems
lots of people are starting to pay attention to that driver at the
moment. These fixes should resolve all of the reported problems as of
now.
Of course there are the usual xhci and gadget fixes as well, can't go a
pull request without those...
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few minor USB fixes for 4.15-rc3.
The largest here is the Kconfig text and configuration changes for the
USB TypeC build options that you reported during the -rc1 merge
window. The others are all just small fixes for reported issues, as
well as some new device ids.
The most "interesting" of anything here is the usbip fixes as it seems
lots of people are starting to pay attention to that driver at the
moment. These fixes should resolve all of the reported problems as of
now.
Of course there are the usual xhci and gadget fixes as well, can't go
a pull request without those...
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
usb: xhci: fix panic in xhci_free_virt_devices_depth_first
xhci: Don't show incorrect WARN message about events for empty rings
usbip: fix usbip attach to find a port that matches the requested speed
usbip: Fix USB device hang due to wrong enabling of scatter-gather
uas: Always apply US_FL_NO_ATA_1X quirk to Seagate devices
usb: quirks: Add no-lpm quirk for KY-688 USB 3.1 Type-C Hub
usb: build drivers/usb/common/ when USB_SUPPORT is set
usb: hub: Cycle HUB power when initialization fails
USB: core: Add type-specific length check of BOS descriptors
usb: host: fix incorrect updating of offset
USB: ulpi: fix bus-node lookup
USB: usbfs: Filter flags passed in from user space
usb: add user selectable option for the whole USB Type-C Support
usb: f_fs: Force Reserved1=1 in OS_DESC_EXT_COMPAT
usb: gadget: core: Fix ->udc_set_speed() speed handling
usb: gadget: allow to enable legacy drivers without USB_ETH
usb: gadget: udc: renesas_usb3: fix number of the pipes
usb: gadget: don't dereference g until after it has been null checked
USB: serial: usb_debug: add new USB device id
usb: bdc: fix platform_no_drv_owner.cocci warnings
...
- Fix the UART2 RTS pin mode on Intel Denverton.
- Fix the direction_output() behaviour on the Armada 37xx.
- Fix the groups selection per-SoC on the Gemini.
- Fix the interrupt pin bank on the Sunxi A80.
- Fix the UART mux on the Sunxi A64.
- Disable the strict mode on the Sunxi H5 driver.
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Merge tag 'pinctrl-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"As with GPIO not much action in pin control. All are driver fixes:
- fix the UART2 RTS pin mode on Intel Denverton
- fix the direction_output() behaviour on the Armada 37xx
- fix the groups selection per-SoC on the Gemini
- fix the interrupt pin bank on the Sunxi A80
- fix the UART mux on the Sunxi A64
- disable the strict mode on the Sunxi H5 driver"
* tag 'pinctrl-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunxi: Disable strict mode for H5 driver
pinctrl: sunxi: Fix A64 UART mux value
pinctrl: sunxi: Fix A80 interrupt pin bank
pinctrl: gemini: Fix usage of 3512 groups
pinctrl: armada-37xx: Fix direction_output() callback behavior
pinctrl: denverton: Fix UART2 RTS pin mode
- Fix a crash in the 74x164 driver
- Fix IRQ banks in the DaVinci driver
- Fix the vendor prefix in the PCA953x driver
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Merge tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Three small fixes for GPIO. Not much, I'm surprised by the silence in
my subsystems. All driver fixes:
- fix a crash in the 74x164 driver
- fix IRQ banks in the DaVinci driver
- fix the vendor prefix in the PCA953x driver"
* tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: fix vendor prefix for PCA9654
gpio: davinci: Assign first bank regs for unbanked case
gpio: 74x164: Fix crash during .remove()
Geert Uytterhoeven reported a NFS oops, and pointed out that some of the
numbers were hashed and useless.
We could just turn them from '%p' into '%px', but those numbers are
really just legacy, and useless even when not hashed.
So just remove them entirely.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
a problem with the new warning mode: it can break the build when confronted
with a source file containing malformed kerneldoc comments.
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Merge tag 'docs-4.15-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of documentation fixes.
The most significant of these addresses a problem with the new warning
mode: it can break the build when confronted with a source file
containing malformed kerneldoc comments"
* tag 'docs-4.15-fixes' of git://git.lwn.net/linux:
Documentation: fix docs build error after source file removed
scsi: documentation: Fix case of 'scsi_device' struct mention(s)
genericirq.rst: Remove :c:func:`...` in code blocks
dmaengine: doc : Fix warning "Title underline too short" while make xmldocs
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
A couple of bugfixes that just became ready.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"virtio and qemu bugfixes
A couple of bugfixes that just became ready"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_balloon: fix increment of vb->num_pfns in fill_balloon()
virtio: release virtio index when fail to device_register
fw_cfg: fix driver remove
Pull networking fixes from David Miller:
1) Various TCP control block fixes, including one that crashes with
SELinux, from David Ahern and Eric Dumazet.
2) Fix ACK generation in rxrpc, from David Howells.
3) ipvlan doesn't set the mark properly in the ipv4 route lookup key,
from Gao Feng.
4) SIT configuration doesn't take on the frag_off ipv4 field
configuration properly, fix from Hangbin Liu.
5) TSO can fail after device down/up on stmmac, fix from Lars Persson.
6) Various bpftool fixes (mostly in JSON handling) from Quentin Monnet.
7) Various SKB leak fixes in vhost/tun/tap (mostly observed as
performance problems). From Wei Xu.
8) mvpps's TX descriptors were not zero initialized, from Yan Markman.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (57 commits)
tcp: use IPCB instead of TCP_SKB_CB in inet_exact_dif_match()
tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()
rxrpc: Fix the MAINTAINERS record
rxrpc: Use correct netns source in rxrpc_release_sock()
liquidio: fix incorrect indentation of assignment statement
stmmac: reset last TSO segment size after device open
ipvlan: Add the skb->mark as flow4's member to lookup route
s390/qeth: build max size GSO skbs on L2 devices
s390/qeth: fix GSO throughput regression
s390/qeth: fix thinko in IPv4 multicast address tracking
tap: free skb if flags error
tun: free skb in early errors
vhost: fix skb leak in handle_rx()
bnxt_en: Fix a variable scoping in bnxt_hwrm_do_send_msg()
bnxt_en: fix dst/src fid for vxlan encap/decap actions
bnxt_en: wildcard smac while creating tunnel decap filter
bnxt_en: Need to unconditionally shut down RoCE in bnxt_shutdown
phylink: ensure we take the link down when phylink_stop() is called
sfp: warn about modules requiring address change sequence
sfp: improve RX_LOS handling
...
The chip family of TILEPro and TILE-Gx was developed by Tilera, which
was eventually acquired by Mellanox. The tile architecture was added to
the kernel in 2010 and first appeared in 2.6.36.
Now at Mellanox we are developing new chips based on the ARM64
architecture; our last TILE-Gx chip (the Gx72) was released in 2013, and
our customers using tile architecture products are not, as far as we
know, looking to upgrade to newer kernel releases. In the absence of
someone in the community stepping up to take over maintainership, this
commit marks the architecture as orphaned.
Cc: Chris Metcalf <metcalf@alum.mit.edu>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The pci/htirq.c file was removed so remove it from the documentation
file also.
Error: Cannot open file ../drivers/pci/htirq.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -export ../drivers/pci/htirq.c' failed with return code 2
Fixes: fd2fa6c18b ("x86/PCI: Remove unused HyperTransport interrupt support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Daniel Borkmann says:
====================
pull-request: bpf 2017-12-02
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a compilation warning in xdp redirect tracepoint due to
missing bpf.h include that pulls in struct bpf_map, from Xie.
2) Limit the maximum number of attachable BPF progs for a given
perf event as long as uabi is not frozen yet. The hard upper
limit is now 64 and therefore the same as with BPF multi-prog
for cgroups. Also add related error checking for the sample
BPF loader when enabling and attaching to the perf event, from
Yonghong.
3) Specifically set the RLIMIT_MEMLOCK for the test_verifier_log
case, so that the test case can always pass and not fail in
some environments due to too low default limit, also from
Yonghong.
4) Fix up a missing license header comment for kernel/bpf/offload.c,
from Jakub.
5) Several fixes for bpftool, among others a crash on incorrect
arguments when json output is used, error message handling
fixes on unknown options and proper destruction of json writer
for some exit cases, all from Quentin.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()
James Morris reported kernel stack corruption bug that
we tracked back to commit 971f10eca1 ("tcp: better TCP_SKB_CB
layout to reduce cache line misses")
First patch needs to be backported to kernels >= 3.18,
while second patch needs to be backported to kernels >= 4.9, since
this was the time when inet_exact_dif_match appeared.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
After this fix : ("tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()"),
socket lookups happen while skb->cb[] has not been mangled yet by TCP.
Fixes: a04a480d43 ("net: Require exact match for TCP socket lookups if dif is l3mdev")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull ARM fix from Russell King:
"Just one fix this time around, for the late commit in the merge window
that triggered a problem with qemu. Qemu is apparently also going to
receive a fix for the discovered issue"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: avoid faulting on qemu
Pull i2c fixes from Wolfram Sang:
"Here are two bugfixes for I2C, fixing a memleak in the core and irq
allocation for i801.
Also three bugfixes for the at24 eeprom driver which Bartosz collected
while taking over maintainership for this driver"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
eeprom: at24: check at24_read/write arguments
eeprom: at24: fix reading from 24MAC402/24MAC602
eeprom: at24: correctly set the size for at24mac402
i2c: i2c-boardinfo: fix memory leaks on devinfo
i2c: i801: Fix Failed to allocate irq -2147483648 error
Drop reference to obsolete maintainer tree
Fix overflow bug in pmbus driver
Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this should
be considered a bug fix or a feature. Peter says "it fixes real problems
where the application misbehave due to faulty content when reading from
an eeprom", and he needs the patch in his company's v4.14 images. This is
good enough for me and warrants backport to stable kernels.
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Merge tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fixes:
- Drop reference to obsolete maintainer tree
- Fix overflow bug in pmbus driver
- Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this
should be considered a bug fix or a feature. Peter says "it fixes real
problems where the application misbehave due to faulty content when
reading from an eeprom", and he needs the patch in his company's v4.14
images. This is good enough for me and warrants backport to stable
kernels"
* tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (jc42) optionally try to disable the SMBUS timeout
hwmon: (pmbus) Use 64bit math for DIRECT format values
hwmon: Drop reference to Jean's tree
Fix the MAINTAINERS record so that it's more obvious who the maintainer for
AF_RXRPC is.
Reported-by: Joe Perches <joe@perches.com>
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In rxrpc_release_sock() there may be no rx->local value to access, so we
can't unconditionally follow it to the rxrpc network namespace information
to poke the connection reapers.
Instead, use the socket's namespace pointer to find the namespace.
This unfixed code causes the following static checker warning:
net/rxrpc/af_rxrpc.c:898 rxrpc_release_sock()
error: we previously assumed 'rx->local' could be null (see line 887)
Fixes: 3d18cbb7fd ("rxrpc: Fix conn expiry timers")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove one extraneous level of indentation on assignment statement.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-4.15-20171201' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2017-12-01
this is a pull for net consisting of nine patches.
The first three patches are by Jimmy Assarsson for the kvaser_usb driver
and add the missing free()s in some error path, a signed/unsigned
comparison and ratelimit the error messages in case of incomplete
messages. Oliver Stäbler's patch for the ti_hecc driver fix the napi
poll function's return value. The return values of the probe function of
the peak_canfd and peak_pci PCI drivers are fixed by Stephane Grosjean's
patch. Two patches by me for the flexcan driver update the
bugs/features/quirks overview table and fix the error state transition
for the VF610 SoC. The two patches by Martin Kelly for the mcba_usb
driver fix a typo and a device disconnect bug.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'at24-4.15-fixes-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current
Please consider pulling the following fixes for v4.15. While it doesn't
fix any regression introduced in the v4.15 merge window, we have a
feature in at24 since linux v4.8 - reading the mac address block from
at24mac series - which turned out to be not working.
This pull request contains changes that fix it together with a patch
that hardens the read and write argument sanitization with
out-of-bounds checks that were missing.
The mss variable tracks the last max segment size sent to the TSO
engine. We do not update the hardware as long as we receive skb:s with
the same value in gso_size.
During a network device down/up cycle (mapped to stmmac_release() and
stmmac_open() callbacks) we issue a reset to the hardware and it
forgets the setting for mss. However we did not zero out our mss
variable so the next transmission of a gso packet happens with an
undefined hardware setting.
This triggers a hang in the TSO engine and eventuelly the netdev
watchdog will bark.
Fixes: f748be531d ("stmmac: support new GMAC4")
Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current codes don't use skb->mark to assign flowi4_mark, it would
make the policy route rule with fwmark doesn't work as expected.
Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann says:
====================
s390/qeth: fixes 2017-12-01
please apply the following three fixes for 4.15. These should also go
back to stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The current GSO skb size limit was copy&pasted over from the L3 path,
where it is needed due to a TSO limitation.
As L2 devices don't offer TSO support (and thus all GSO skbs are
segmented before they reach the driver), there's no reason to restrict
the stack in how large it may build the GSO skbs.
Fixes: d52aec97e5 ("qeth: enable scatter/gather in layer 2 mode")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Using GSO with small MTUs currently results in a substantial throughput
regression - which is caused by how qeth needs to map non-linear skbs
into its IO buffer elements:
compared to a linear skb, each GSO-segmented skb effectively consumes
twice as many buffer elements (ie two instead of one) due to the
additional header-only part. This causes the Output Queue to be
congested with low-utilized IO buffers.
Fix this as follows:
If the MSS is low enough so that a non-SG GSO segmentation produces
order-0 skbs (currently ~3500 byte), opt out from NETIF_F_SG. This is
where we anticipate the biggest savings, since an SG-enabled
GSO segmentation produces skbs that always consume at least two
buffer elements.
Larger MSS values continue to get a SG-enabled GSO segmentation, since
1) the relative overhead of the additional header-only buffer element
becomes less noticeable, and
2) the linearization overhead increases.
With the throughput regression fixed, re-enable NETIF_F_SG by default to
reap the significant CPU savings of GSO.
Fixes: 5722963a8e ("qeth: do not turn on SG per default")
Reported-by: Nils Hoppmann <niho@de.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 5f78e29cee ("qeth: optimize IP handling in rx_mode callback")
reworked how secondary addresses are managed for qeth devices.
Instead of dropping & subsequently re-adding all addresses on every
ndo_set_rx_mode() call, qeth now keeps track of the addresses that are
currently registered with the HW.
On a ndo_set_rx_mode(), we thus only need to do (de-)registration
requests for the addresses that have actually changed.
On L3 devices, the lookup for IPv4 Multicast addresses checks the wrong
hashtable - and thus never finds a match. As a result, we first delete
*all* such addresses, and then re-add them again. So each set_rx_mode()
causes a short period where the IPv4 Multicast addresses are not
registered, and the card stops forwarding inbound traffic for them.
Fix this by setting the ->is_multicast flag on the lookup object, thus
enabling qeth_l3_ip_from_hash() to search the correct hashtable and
find a match there.
Fixes: 5f78e29cee ("qeth: optimize IP handling in rx_mode callback")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Xu says:
====================
vhost: fix a few skb leaks
Matthew found a roughly 40% tcp throughput regression with commit
c67df11f(vhost_net: try batch dequing from skb array) as discussed
in the following thread:
https://www.mail-archive.com/netdev@vger.kernel.org/msg187936.html
v4:
- fix zero iov iterator count in tap/tap_do_read()(Jason)
- don't put tun in case of EBADFD(Jason)
- Replace msg->msg_control with new 'skb' when calling tun/tap_do_read()
v3:
- move freeing skb from vhost to tun/tap recvmsg() to not
confuse the callers.
v2:
- add Matthew as the reporter, thanks matthew.
- moving zero headcount check ahead instead of defer consuming skb
due to jason and mst's comment.
- add freeing skb in favor of recvmsg() fails.
====================
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tap_recvmsg() supports accepting skb by msg_control after
commit 3b4ba04acc ("tap: support receiving skb from msg_control"),
the skb if presented should be freed within the function, otherwise
it would be leaked.
Signed-off-by: Wei Xu <wexu@redhat.com>
Reported-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tun_recvmsg() supports accepting skb by msg_control after
commit ac77cfd425 ("tun: support receiving skb through msg_control"),
the skb if presented should be freed no matter how far it can go
along, otherwise it would be leaked.
This patch fixes several missed cases.
Signed-off-by: Wei Xu <wexu@redhat.com>
Reported-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matthew found a roughly 40% tcp throughput regression with commit
c67df11f(vhost_net: try batch dequing from skb array) as discussed
in the following thread:
https://www.mail-archive.com/netdev@vger.kernel.org/msg187936.html
Eventually we figured out that it was a skb leak in handle_rx()
when sending packets to the VM. This usually happens when a guest
can not drain out vq as fast as vhost fills in, afterwards it sets
off the traffic jam and leaks skb(s) which occurs as no headcount
to send on the vq from vhost side.
This can be avoided by making sure we have got enough headcount
before actually consuming a skb from the batched rx array while
transmitting, which is simply done by moving checking the zero
headcount a bit ahead.
Signed-off-by: Wei Xu <wexu@redhat.com>
Reported-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan says:
====================
bnxt_en: Fixes.
A shutdown fix for SMARTNIC, 2 fixes related to TC Flower vxlan
filters, and the last one fixes an out-of-scope variable when sending
short firmware messages.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
short_input variable is assigned to another data pointer which is
referred out of its scope. Fix it by moving short_input definition
to the beginning of bnxt_hwrm_do_send_msg() function.
No failure has been reported so far due to this issue.
Fixes: e605db801b ("bnxt_en: Support for Short Firmware Message")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For flows that involve a vxlan encap action, the vxlan sock
interface may be specified as the outgoing interface. The driver
must resolve the outgoing PF interface used by this socket and
use the dst_fid of the PF in the hwrm_cfa_encap_record_alloc cmd.
Similarily for flows that have a vxlan decap action, the
fid of the incoming PF interface must be used as the src_fid in
the hwrm_cfa_decap_filter_alloc cmd.
Fixes: 8c95f773b4 ("bnxt_en: add support for Flower based vxlan encap/decap offload")
Signed-off-by: Sathya Perla <sathya.perla@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While creating a decap filter the tunnel smac need not (and must not) be
specified as we cannot ascertain the neighbor in the recv path. 'ttl'
match is also not needed for the decap filter and must be wild-carded.
Fixes: f484f6782e ("bnxt_en: add hwrm FW cmds for cfa_encap_record and decap_filter")
Signed-off-by: Sunil Challa <sunilkumar.challa@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current 'bnxt_shutdown' implementation only invokes
'bnxt_ulp_shutdown' to shut down RoCE in the case when the system is in
the path of power off (SYSTEM_POWER_OFF). While this may work in most
cases, it does not work in the smart NIC case, when Linux 'reboot'
command is initiated from the Linux that runs on the ARM cores of the
NIC card. In this particular case, Linux 'reboot' results in a system
'L3' level reset where the entire ARM and associated subsystems are
being reset, but at the same time, Nitro core is being kept in sane state
(to allow external PCIe connected servers to continue to work). Without
properly shutting down RoCE and freeing all associated resources, it
results in the ARM core to hang immediately after the 'reboot'
By always invoking 'bnxt_ulp_shutdown' in 'bnxt_shutdown', it fixes the
above issue
Fixes: 0efd2fc65c ("bnxt_en: Add a callback to inform RDMA driver during PCI shutdown.")
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Despite commit 55020c8056 ("of: Add vendor prefix for ON Semiconductor
Corp.") was made long ago, the latter commit 9f49f6dd04 ("gpio: pca953x:
add onsemi,pca9654 id") made use of another, undocumented vendor prefix.
Since such prefix doesn't seem to be used in any device trees, I think we
can just fix the "compatible" string in the driver and the bindings and be
done with that...
Fixes: 9f49f6dd04 ("gpio: pca953x: add onsemi,pca9654 id")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In scsi_mid_low_api.txt a the scsi_device structure is mentioned
several times, but the leading 's' is uppercase (Scsi_device)
and should be lowercase (scsi_device). Fixed by this commit.
Signed-off-by: John Pittman <jpittman@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In code blocks, :c:func:`...` annotations don't result in
cross-references. Instead, they are rendered verbatim. Remove these
broken annotations, and mark function calls with parentheses() again.
Fixes: 76d40fae13 ("genericirq.rst: add cross-reference links and use monospaced fonts")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This patch fix following warning during 'make xmldocs'
Documentation/driver-api/dmaengine/client.rst:188:
WARNING: Title underline too short.
Further APIs:
------------
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
My bisect scripts starting running into build failures when trying to
compile 4.15-rc1 with the builds failing with things like:
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:2078: error: Cannot parse struct or union!
The line in question is actually just a #define, but after some digging
it turns out that my scripts pass W=1 and since commit 3a025e1d1c
("Add optional check for bad kernel-doc comments") that results in
kernel-doc running on each source file. The file in question has a
badly formatted comment immediately before the #define:
/**
* struct brcmf_skbuff_cb reserves first two bytes in sk_buff::cb for
* bus layer usage.
*/
which causes the regex in dump_struct to fail (lack of braces following
struct declaration) and kernel-doc returns 1, which causes the build
to fail.
Fix the issue by always returning 0 from kernel-doc when invoked with
-none. It successfully generates no documentation, and prints out any
issues.
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Bugfixes:
- NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid"
- SUNRPC: Allow connect to return EHOSTUNREACH
- SUNRPC: Handle ENETDOWN errors
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Merge tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"These patches fix a problem with compiling using an old version of
gcc, and also fix up error handling in the SUNRPC layer.
- NFSv4: Ensure gcc 4.4.4 can compile initialiser for
"invalid_stateid"
- SUNRPC: Allow connect to return EHOSTUNREACH
- SUNRPC: Handle ENETDOWN errors"
* tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: Handle ENETDOWN errors
SUNRPC: Allow connect to return EHOSTUNREACH
NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid"
- Fix memory leaks that appeared after removing ifork inline data buffer
- Recover deferred rmap update log items in correct order
- Fix memory leaks when buffer construction fails
- Fix memory leaks when bmbt is corrupt
- Fix some uninitialized variables and math problems in the quota scrubber
- Add some omitted attribution tags on the log replay commit
- Fix some UBSAN complaints about integer overflows with large sparse files
- Implement an effective inode mode check in online fsck
- Fix log's inability to retry quota item writeout due to transient errors
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Merge tag 'xfs-4.15-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are some bug fixes for 4.15-rc2.
- fix memory leaks that appeared after removing ifork inline data
buffer
- recover deferred rmap update log items in correct order
- fix memory leaks when buffer construction fails
- fix memory leaks when bmbt is corrupt
- fix some uninitialized variables and math problems in the quota
scrubber
- add some omitted attribution tags on the log replay commit
- fix some UBSAN complaints about integer overflows with large sparse
files
- implement an effective inode mode check in online fsck
- fix log's inability to retry quota item writeout due to transient
errors"
* tag 'xfs-4.15-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: Properly retry failed dquot items in case of error during buffer writeback
xfs: scrub inode mode properly
xfs: remove unused parameter from xfs_writepage_map
xfs: ubsan fixes
xfs: calculate correct offset in xfs_scrub_quota_item
xfs: fix uninitialized variable in xfs_scrub_quota
xfs: fix leaks on corruption errors in xfs_bmap.c
xfs: fortify xfs_alloc_buftarg error handling
xfs: log recovery should replay deferred ops in order
xfs: always free inline data before resetting inode fork during ifree
This tag contains a handful of small cleanups that are a result of
feedback that didn't make it into our original patch set, either because
the feedback hadn't been given yet, I missed the original emails, or
we weren't ready to submit the changes yet.
I've been maintaining the various cleanup patch sets I have as their own
branches, which I then merged together and signed. Each merge commit
has a short summary of the changes, and each branch is based on your
latest tag (4.15-rc1, in this case). If this isn't the right way to do
this then feel free to suggest something else, but it seems sane to me.
Here's a short summary of the changes, roughly in order of how
interesting they are.
* libgcc.h has been moved from include/lib, where it's the only member,
to include/linux. This is meant to avoid tab completion conflicts.
* VDSO entries for clock_get/gettimeofday/getcpu have been added. These
are simple syscalls now, but we want to let glibc use them from the
start so we can make them faster later.
* A VDSO entry for instruction cache flushing has been added so
userspace can flush the instruction cache.
* The VDSO symbol versions for __vdso_cmpxchg{32,64} have been removed,
as those VDSO entries don't actually exist.
* __io_writes has been corrected to respect the given type.
* A new READ_ONCE in arch_spin_is_locked().
* __test_and_op_bit_ord() is now actually ordered.
* Various small fixes throughout the tree to enable allmodconfig to
build cleanly.
* Removal of some dead code in our atomic support headers.
* Improvements to various comments in our atomic support headers.
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Merge tag 'riscv-for-linus-4.15-rc2_cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux
Pull RISC-V cleanups and ABI fixes from Palmer Dabbelt:
"This contains a handful of small cleanups that are a result of
feedback that didn't make it into our original patch set, either
because the feedback hadn't been given yet, I missed the original
emails, or we weren't ready to submit the changes yet.
I've been maintaining the various cleanup patch sets I have as their
own branches, which I then merged together and signed. Each merge
commit has a short summary of the changes, and each branch is based on
your latest tag (4.15-rc1, in this case). If this isn't the right way
to do this then feel free to suggest something else, but it seems sane
to me.
Here's a short summary of the changes, roughly in order of how
interesting they are.
- libgcc.h has been moved from include/lib, where it's the only
member, to include/linux. This is meant to avoid tab completion
conflicts.
- VDSO entries for clock_get/gettimeofday/getcpu have been added.
These are simple syscalls now, but we want to let glibc use them
from the start so we can make them faster later.
- A VDSO entry for instruction cache flushing has been added so
userspace can flush the instruction cache.
- The VDSO symbol versions for __vdso_cmpxchg{32,64} have been
removed, as those VDSO entries don't actually exist.
- __io_writes has been corrected to respect the given type.
- A new READ_ONCE in arch_spin_is_locked().
- __test_and_op_bit_ord() is now actually ordered.
- Various small fixes throughout the tree to enable allmodconfig to
build cleanly.
- Removal of some dead code in our atomic support headers.
- Improvements to various comments in our atomic support headers"
* tag 'riscv-for-linus-4.15-rc2_cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux: (23 commits)
RISC-V: __io_writes should respect the length argument
move libgcc.h to include/linux
RISC-V: Clean up an unused include
RISC-V: Allow userspace to flush the instruction cache
RISC-V: Flush I$ when making a dirty page executable
RISC-V: Add missing include
RISC-V: Use define for get_cycles like other architectures
RISC-V: Provide stub of setup_profiling_timer()
RISC-V: Export some expected symbols for modules
RISC-V: move empty_zero_page definition to C and export it
RISC-V: io.h: type fixes for warnings
RISC-V: use RISCV_{INT,SHORT} instead of {INT,SHORT} for asm macros
RISC-V: use generic serial.h
RISC-V: remove spin_unlock_wait()
RISC-V: `sfence.vma` orderes the instruction cache
RISC-V: Add READ_ONCE in arch_spin_is_locked()
RISC-V: __test_and_op_bit_ord should be strongly ordered
RISC-V: Remove smb_mb__{before,after}_spinlock()
RISC-V: Remove __smp_bp__{before,after}_atomic
RISC-V: Comment on why {,cmp}xchg is ordered how it is
...
