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  1. 01 12月, 2018 32 次提交
  3. 27 11月, 2018 8 次提交
    • G
      Linux 4.19.5 · b32d16ec
      由 Greg Kroah-Hartman 提交于
      b32d16ec
    • L
      mt76x0: run vco calibration for each channel configuration · 0d981331
      由 Lorenzo Bianconi 提交于 
      commit 473f0a763d2c7cd68a6dedf51e7d81e8f58f78ac upstream.

According to vendor sdk, vco calibration has to be executed
for each channel configuration whereas mcu calibration has to be
performed during channel scanning. This patch fixes the mt76x0
monitor mode issue since in that configuration vco calibration
was never executed

Fixes: 10de7a8b ("mt76x0: phy files")
Tested-by: NSid Hayn <sidhayn@gmail.com>
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      0d981331
    • I
      libceph: fall back to sendmsg for slab pages · 02e28d5b
      由 Ilya Dryomov 提交于 
      commit 7e241f647dc7087a0401418a187f3f5b527cc690 upstream.

skb_can_coalesce() allows coalescing neighboring slab objects into
a single frag:

  return page == skb_frag_page(frag) &&
         off == frag->page_offset + skb_frag_size(frag);

ceph_tcp_sendpage() can be handed slab pages.  One example of this is
XFS: it passes down sector sized slab objects for its metadata I/O.  If
the kernel client is co-located on the OSD node, the skb may go through
loopback and pop on the receive side with the exact same set of frags.
When tcp_recvmsg() attempts to copy out such a frag, hardened usercopy
complains because the size exceeds the object's allocated size:

  usercopy: kernel memory exposure attempt detected from ffff9ba917f20a00 (kmalloc-512) (1024 bytes)

Although skb_can_coalesce() could be taught to return false if the
resulting frag would cross a slab object boundary, we already have
a fallback for non-refcounted pages.  Utilize it for slab pages too.

Cc: stable@vger.kernel.org # 4.8+
Signed-off-by: NIlya Dryomov <idryomov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      02e28d5b
    • S
      HID: Add quirk for Microsoft PIXART OEM mouse · 8ef7c76c
      由 Sebastian Parschauer 提交于 
      commit e82e62e390d39c3819641cd721695702180d54fb upstream.

The PixArt OEM mice are known for disconnecting every minute in
runlevel 1 or 3 if they are not always polled. So add quirk
ALWAYS_POLL for this one as well.

References:
https://www.spinics.net/lists/linux-usb/msg88965.html
http://linet.gr.jp/~kojima/PlamoWeb/ML/htdocs/201808/msg00019.htmlSigned-off-by: NSebastian Parschauer <sparschauer@suse.de>
CC: stable@vger.kernel.org
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      8ef7c76c
    • S
      HID: Add quirk for Primax PIXART OEM mice · 0c874f9e
      由 Sebastian Parschauer 提交于 
      commit fb862c3b199d28bee238d52e8270eae8650d6cb0 upstream.

The PixArt OEM mice are known for disconnecting every minute in
runlevel 1 or 3 if they are not always polled. So add quirk
ALWAYS_POLL for two Primax mice as well.

0x4e22 is the Dell MS111-P and 0x4d0f is the unbranded HP Portia
mouse HP 697738-001. Both were built until approx. 2014.
Those were the standard mice from those vendors and are still
around - even as new old stock.

Reference: https://github.com/sriemer/fix-linux-mouse/issues/11Signed-off-by: NSebastian Parschauer <sparschauer@suse.de>
CC: stable@vger.kernel.org
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      0c874f9e
    • E
      HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges · cf7de658
      由 Eric Biggers 提交于 
      commit 8c01db7619f07c85c5cd81ec5eb83608b56c88f5 upstream.

When a UHID_CREATE command is written to the uhid char device, a
copy_from_user() is done from a user pointer embedded in the command.
When the address limit is KERNEL_DS, e.g. as is the case during
sys_sendfile(), this can read from kernel memory.  Alternatively,
information can be leaked from a setuid binary that is tricked to write
to the file descriptor.  Therefore, forbid UHID_CREATE in these cases.

No other commands in uhid_char_write() are affected by this bug and
UHID_CREATE is marked as "obsolete", so apply the restriction to
UHID_CREATE only rather than to uhid_char_write() entirely.

Thanks to Dmitry Vyukov for adding uhid definitions to syzkaller and to
Jann Horn for commit 9da3f2b740544 ("x86/fault: BUG() when uaccess
helpers fault on kernel addresses"), allowing this bug to be found.

Reported-by: syzbot+72473edc9bf4eb1c6556@syzkaller.appspotmail.com
Fixes: d365c6cf ("HID: uhid: add UHID_CREATE and UHID_DESTROY events")
Cc: <stable@vger.kernel.org> # v3.6+
Cc: Jann Horn <jannh@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Signed-off-by: NEric Biggers <ebiggers@google.com>
Reviewed-by: NJann Horn <jannh@google.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      cf7de658
    • H
      ACPI / platform: Add SMB0001 HID to forbidden_id_list · a73a8c3b
      由 Hans de Goede 提交于 
      commit 2bbb5fa37475d7aa5fa62f34db1623f3da2dfdfa upstream.

Many HP AMD based laptops contain an SMB0001 device like this:

Device (SMBD)
{
    Name (_HID, "SMB0001")  // _HID: Hardware ID
    Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource Settings
    {
        IO (Decode16,
            0x0B20,             // Range Minimum
            0x0B20,             // Range Maximum
            0x20,               // Alignment
            0x20,               // Length
            )
        IRQ (Level, ActiveLow, Shared, )
            {7}
    })
}

The legacy style IRQ resource here causes acpi_dev_get_irqresource() to
be called with legacy=true and this message to show in dmesg:
ACPI: IRQ 7 override to edge, high

This causes issues when later on the AMD0030 GPIO device gets enumerated:

Device (GPIO)
{
    Name (_HID, "AMDI0030")  // _HID: Hardware ID
    Name (_CID, "AMDI0030")  // _CID: Compatible ID
    Name (_UID, Zero)  // _UID: Unique ID
    Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
    {
	Name (RBUF, ResourceTemplate ()
	{
	    Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, )
	    {
		0x00000007,
	    }
	    Memory32Fixed (ReadWrite,
		0xFED81500,         // Address Base
		0x00000400,         // Address Length
		)
	})
	Return (RBUF) /* \_SB_.GPIO._CRS.RBUF */
    }
}

Now acpi_dev_get_irqresource() gets called with legacy=false, but because
of the earlier override of the trigger-type acpi_register_gsi() returns
-EBUSY (because we try to register the same interrupt with a different
trigger-type) and we end up setting IORESOURCE_DISABLED in the flags.

The setting of IORESOURCE_DISABLED causes platform_get_irq() to call
acpi_irq_get() which is not implemented on x86 and returns -EINVAL.
resulting in the following in dmesg:

amd_gpio AMDI0030:00: Failed to get gpio IRQ: -22
amd_gpio: probe of AMDI0030:00 failed with error -22

The SMB0001 is a "virtual" device in the sense that the only way the OS
interacts with it is through calling a couple of methods to do SMBus
transfers. As such it is weird that it has IO and IRQ resources at all,
because the driver for it is not expected to ever access the hardware
directly.

The Linux driver for the SMB0001 device directly binds to the acpi_device
through the acpi_bus, so we do not need to instantiate a platform_device
for this ACPI device. This commit adds the SMB0001 HID to the
forbidden_id_list, avoiding the instantiating of a platform_device for it.
Not instantiating a platform_device means we will no longer call
acpi_dev_get_irqresource() for the legacy IRQ resource fixing the probe of
the AMDI0030 device failing.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1644013
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=198715
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199523Reported-by: NLukas Kahnert <openproggerfreak@gmail.com>
Tested-by: NMarc <suaefar@googlemail.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      a73a8c3b
    • G
      drivers/misc/sgi-gru: fix Spectre v1 vulnerability · 3e31936b
      由 Gustavo A. R. Silva 提交于 
      commit fee05f455ceb5c670cbe48e2f9454ebc4a388554 upstream.

req.gid can be indirectly controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:

vers/misc/sgi-gru/grukdump.c:200 gru_dump_chiplet_request() warn:
potential spectre issue 'gru_base' [w]

Fix this by sanitizing req.gid before calling macro GID_TO_GRU, which
uses it to index gru_base.

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2

Cc: stable@vger.kernel.org
Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      3e31936b