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commit 30ca1aa536211f5ac3de0173513a7a99a98a97f3 upstream.
Make ieee80211_send_layer2_update() a common function so other drivers
can re-use it.
Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
[bwh: Backported to 4.4 as dependency of commit 3e493173b784
"mac80211: Do not send Layer 2 Update frame before authorization":
- Retain type-casting of skb_put() return value
- Adjust context]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit abd39c6ded9db53aa44c2540092bdd5fb6590fa8 upstream.
Observed crash in some scenarios when assertion has occurred,
this is because hw structure is freed and is tried to get
accessed in some functions where null check is already
present. So, avoided the crash by making the hw to NULL after
freeing.
Signed-off-by: Sanjay Konduri <sanjay.konduri@redpinesignals.com>
Signed-off-by: Sushant Kumar Mishra <sushant.mishra@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 9e635c2851df6caee651e589fbf937b637973c91 ]
hidraw and uhid device nodes are always available for writing so we should
always report EPOLLOUT and EPOLLWRNORM bits, not only in the cases when
there is nothing to read.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: be54e7461ffdc ("HID: uhid: Fix returning EPOLLOUT from uhid_char_poll")
Fixes: 9f3b61dc1dd7b ("HID: hidraw: Fix returning EPOLLOUT from hidraw_poll")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9f3b61dc1dd7b81e99e7ed23776bb64a35f39e1a ]
When polling a connected /dev/hidrawX device, it is useful to get the
EPOLLOUT when writing is possible. Since writing is possible as soon as
the device is connected, always return it.
Right now EPOLLOUT is only returned when there are also input reports
are available. This works if devices start sending reports when
connected, but some HID devices might need an output report first before
sending any input reports. This change will allow using EPOLLOUT here as
well.
Fixes: 378b80370aa1 ("hidraw: Return EPOLLOUT from hidraw_poll")
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 378b80370aa1fe50f9c48a3ac8af3e416e73b89f ]
Always return EPOLLOUT from hidraw_poll when a device is connected.
This is safe since writes are always possible (but will always block).
hidraw does not support non-blocking writes and instead always calls
blocking backend functions on write requests. Hence, so far, a call to
poll never returned EPOLLOUT, which confuses tools like socat.
Signed-off-by: Fabian Henneke <fabian.henneke@gmail.com>
In-reply-to: <CA+hv5qkyis03CgYTWeWX9cr0my-d2Oe+aZo+mjmWRXgjrGqyrw@mail.gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Changes in 4.4.210
kobject: Export kobject_get_unless_zero()
chardev: Avoid potential use-after-free in 'chrdev_open()'
usb: chipidea: host: Disable port power only if previously enabled
ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5
kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail
tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined
HID: Fix slab-out-of-bounds read in hid_field_extract
HID: uhid: Fix returning EPOLLOUT from uhid_char_poll
HID: hid-input: clear unmapped usages
Input: add safety guards to input_set_keycode()
drm/dp_mst: correct the shifting in DP_REMOTE_I2C_READ
can: gs_usb: gs_usb_probe(): use descriptors of current altsetting
can: mscan: mscan_rx_poll(): fix rx path lockup when returning from polling to irq mode
can: can_dropped_invalid_skb(): ensure an initialized headroom in outgoing CAN sk_buffs
staging: vt6656: set usb_set_intfdata on driver fail.
USB: serial: option: add ZLP support for 0x1bc7/0x9010
usb: musb: Disable pullup at init
usb: musb: dma: Correct parameter passed to IRQ handler
staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
tty: link tty and port before configuring it as console
tty: always relink the port
mwifiex: fix possible heap overflow in mwifiex_process_country_ie()
mwifiex: pcie: Fix memory leak in mwifiex_pcie_alloc_cmdrsp_buf
scsi: bfa: release allocated memory in case of error
rtl8xxxu: prevent leaking urb
USB: Fix: Don't skip endpoint descriptors with maxpacket=0
netfilter: arp_tables: init netns pointer in xt_tgchk_param struct
netfilter: ipset: avoid null deref when IPSET_ATTR_LINENO is present
drm/i915/gen9: Clear residual context state on context switch
Linux 4.4.210
Change-Id: I5ee00026c7108d6a3a1a2711e7413f05defc64ce
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit bc8a76a152c5f9ef3b48104154a65a68a8b76946 upstream.
Intel ID: PSIRT-TA-201910-001
CVEID: CVE-2019-14615
Intel GPU Hardware prior to Gen11 does not clear EU state
during a context switch. This can result in information
leakage between contexts.
For Gen8 and Gen9, hardware provides a mechanism for
fast cleardown of the EU state, by issuing a PIPE_CONTROL
with bit 27 set. We can use this in a context batch buffer
to explicitly cleardown the state on every context switch.
As this workaround is already in place for gen8, we can borrow
the code verbatim for Gen9.
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Cc: Kumar Valsan Prathap <prathap.kumar.valsan@intel.com>
Cc: Chris Wilson <chris.p.wilson@intel.com>
Cc: Balestrieri Francesco <francesco.balestrieri@intel.com>
Cc: Bloomfield Jon <jon.bloomfield@intel.com>
Cc: Dutt Sudeep <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 22dad713b8a5ff488e07b821195270672f486eb2 upstream.
The set uadt functions assume lineno is never NULL, but it is in
case of ip_set_utest().
syzkaller managed to generate a netlink message that calls this with
LINENO attr present:
general protection fault: 0000 [#1] PREEMPT SMP KASAN
RIP: 0010:hash_mac4_uadt+0x1bc/0x470 net/netfilter/ipset/ip_set_hash_mac.c:104
Call Trace:
ip_set_utest+0x55b/0x890 net/netfilter/ipset/ip_set_core.c:1867
nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563
pass a dummy lineno storage, its easier than patching all set
implementations.
This seems to be a day-0 bug.
Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Reported-by: syzbot+34bd2369d38707f3f4a7@syzkaller.appspotmail.com
Fixes: a7b4f989a6294 ("netfilter: ipset: IP set core support")
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1b789577f655060d98d20ed0c6f9fbd469d6ba63 upstream.
We get crash when the targets checkentry function tries to make
use of the network namespace pointer for arptables.
When the net pointer got added back in 2010, only ip/ip6/ebtables were
changed to initialize it, so arptables has this set to NULL.
This isn't a problem for normal arptables because no existing
arptables target has a checkentry function that makes use of par->net.
However, direct users of the setsockopt interface can provide any
target they want as long as its registered for ARP or UNPSEC protocols.
syzkaller managed to send a semi-valid arptables rule for RATEEST target
which is enough to trigger NULL deref:
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
RIP: xt_rateest_tg_checkentry+0x11d/0xb40 net/netfilter/xt_RATEEST.c:109
[..]
xt_check_target+0x283/0x690 net/netfilter/x_tables.c:1019
check_target net/ipv4/netfilter/arp_tables.c:399 [inline]
find_check_entry net/ipv4/netfilter/arp_tables.c:422 [inline]
translate_table+0x1005/0x1d70 net/ipv4/netfilter/arp_tables.c:572
do_replace net/ipv4/netfilter/arp_tables.c:977 [inline]
do_arpt_set_ctl+0x310/0x640 net/ipv4/netfilter/arp_tables.c:1456
Fixes: add67461240c1d ("netfilter: add struct net * to target parameters")
Reported-by: syzbot+d7358a458d8a81aee898@syzkaller.appspotmail.com
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2548288b4fb059b2da9ceada172ef763077e8a59 upstream.
It turns out that even though endpoints with a maxpacket length of 0
aren't useful for data transfer, the descriptors do serve other
purposes. In particular, skipping them will also skip over other
class-specific descriptors for classes such as UVC. This unexpected
side effect has caused some UVC cameras to stop working.
In addition, the USB spec requires that when isochronous endpoint
descriptors are present in an interface's altsetting 0 (which is true
on some devices), the maxpacket size _must_ be set to 0. Warning
about such things seems like a bad idea.
This patch updates an earlier commit which would log a warning and
skip these endpoint descriptors. Now we only log a warning, and we
don't even do that for isochronous endpoints in altsetting 0.
We don't need to worry about preventing endpoints with maxpacket = 0
from ever being used for data transfers; usb_submit_urb() already
checks for this.
Reported-and-tested-by: Roger Whittaker <Roger.Whittaker@suse.com>
Fixes: d482c7bb0541 ("USB: Skip endpoints with 0 maxpacket length")
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://marc.info/?l=linux-usb&m=157790377329882&w=2
Link: https://lore.kernel.org/r/Pine.LNX.4.44L0.2001061040270.1514-100000@iolanthe.rowland.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a2cdd07488e666aa93a49a3fc9c9b1299e27ef3c upstream.
In rtl8xxxu_submit_int_urb if usb_submit_urb fails the allocated urb
should be released.
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Reviewed-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0e62395da2bd5166d7c9e14cbc7503b256a34cb0 upstream.
In bfad_im_get_stats if bfa_port_get_stats fails, allocated memory needs to
be released.
Link: https://lore.kernel.org/r/20190910234417.22151-1-navid.emamdoost@gmail.com
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit db8fd2cde93227e566a412cf53173ffa227998bc upstream.
In mwifiex_pcie_alloc_cmdrsp_buf, a new skb is allocated which should be
released if mwifiex_map_pci_memory() fails. The release is added.
Fixes: fc3314609047 ("mwifiex: use pci_alloc/free_consistent APIs for PCIe")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Acked-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3d94a4a8373bf5f45cf5f939e88b8354dbf2311b upstream.
mwifiex_process_country_ie() function parse elements of bss
descriptor in beacon packet. When processing WLAN_EID_COUNTRY
element, there is no upper limit check for country_ie_len before
calling memcpy. The destination buffer domain_info->triplet is an
array of length MWIFIEX_MAX_TRIPLET_802_11D(83). The remote
attacker can build a fake AP with the same ssid as real AP, and
send malicous beacon packet with long WLAN_EID_COUNTRY elemen
(country_ie_len > 83). Attacker can force STA connect to fake AP
on a different channel. When the victim STA connects to fake AP,
will trigger the heap buffer overflow. Fix this by checking for
length and if found invalid, don not connect to the AP.
This fix addresses CVE-2019-14895.
Reported-by: huangwen <huangwenabc@gmail.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 273f632912f1b24b642ba5b7eb5022e43a72f3b5 upstream.
If the serial device is disconnected and reconnected, it re-enumerates
properly but does not link it. fwiw, linking means just saving the port
index, so allow it always as there is no harm in saving the same value
again even if it tries to relink with the same port.
Fixes: fb2b90014d78 ("tty: link tty and port before configuring it as console")
Reported-by: Kenneth R. Crudup <kenny@panix.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191227174434.12057-1-sudipm.mukherjee@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fb2b90014d782d80d7ebf663e50f96d8c507a73c upstream.
There seems to be a race condition in tty drivers and I could see on
many boot cycles a NULL pointer dereference as tty_init_dev() tries to
do 'tty->port->itty = tty' even though tty->port is NULL.
'tty->port' will be set by the driver and if the driver has not yet done
it before we open the tty device we can get to this situation. By adding
some extra debug prints, I noticed that:
6.650130: uart_add_one_port
6.663849: register_console
6.664846: tty_open
6.674391: tty_init_dev
6.675456: tty_port_link_device
uart_add_one_port() registers the console, as soon as it registers, the
userspace tries to use it and that leads to tty_open() but
uart_add_one_port() has not yet done tty_port_link_device() and so
tty->port is not yet configured when control reaches tty_init_dev().
Further look into the code and tty_port_link_device() is done by
uart_add_one_port(). After registering the console uart_add_one_port()
will call tty_port_register_device_attr_serdev() and
tty_port_link_device() is called from this.
Call add tty_port_link_device() before uart_configure_port() is done and
add a check in tty_port_link_device() so that it only links the port if
it has not been done yet.
Suggested-by: Jiri Slaby <jslaby@suse.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191212131602.29504-1-sudipm.mukherjee@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 58dcc5bf4030cab548d5c98cd4cd3632a5444d5a upstream.
This device was added to the stand-alone driver on github.
Add it to the staging driver as well.
Link: https://github.com/lwfinger/rtl8188eu/commit/b9b537aa25a8
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191228143725.24455-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c80d0f4426c7fdc7efd6ae8d8b021dcfc89b4254 upstream.
The IRQ handler was passed a pointer to a struct dma_controller, but the
argument was then casted to a pointer to a struct musb_dma_controller.
Fixes: 427c4f333474 ("usb: struct device - replace bus_id with dev_name(), dev_set_name()")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Cc: stable@vger.kernel.org
Signed-off-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20191216161844.772-2-b-liu@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 96a0c12843109e5c4d5eb1e09d915fdd0ce31d25 upstream.
The pullup may be already enabled before the driver is initialized. This
happens for instance on JZ4740.
It has to be disabled at init time, as we cannot guarantee that a gadget
driver will be bound to the UDC.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Suggested-by: Bin Liu <b-liu@ti.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200107152625.857-3-b-liu@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2438c3a19dec5e98905fd3ffcc2f24716aceda6b upstream.
Telit FN980 flashing device 0x1bc7/0x9010 requires zero packet
to be sent if out data size is is equal to the endpoint max size.
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
[ johan: switch operands in conditional ]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c0bcf9f3f5b661d4ace2a64a79ef661edd2a4dc8 upstream.
intfdata will contain stale pointer when the device is detached after
failed initialization when referenced in vt6656_disconnect
Provide driver access to it here and NULL it.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/6de448d7-d833-ef2e-dd7b-3ef9992fee0e@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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CAN sk_buffs
commit e7153bf70c3496bac00e7e4f395bb8d8394ac0ea upstream.
KMSAN sysbot detected a read access to an untinitialized value in the
headroom of an outgoing CAN related sk_buff. When using CAN sockets this
area is filled appropriately - but when using a packet socket this
initialization is missing.
The problematic read access occurs in the CAN receive path which can
only be triggered when the sk_buff is sent through a (virtual) CAN
interface. So we check in the sending path whether we need to perform
the missing initializations.
Fixes: d3b58c47d330d ("can: replace timestamp as unique skb attribute")
Reported-by: syzbot+b02ff0707a97e4e79ebb@syzkaller.appspotmail.com
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.1
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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to irq mode
commit 2d77bd61a2927be8f4e00d9478fe6996c47e8d45 upstream.
Under load, the RX side of the mscan driver can get stuck while TX still
works. Restarting the interface locks up the system. This behaviour
could be reproduced reliably on a MPC5121e based system.
The patch fixes the return value of the NAPI polling function (should be
the number of processed packets, not constant 1) and the condition under
which IRQs are enabled again after polling is finished.
With this patch, no more lockups were observed over a test period of ten
days.
Fixes: afa17a500a36 ("net/can: add driver for mscan family & mpc52xx_mscan")
Signed-off-by: Florian Faber <faber@faberman.de>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2f361cd9474ab2c4ab9ac8db20faf81e66c6279b upstream.
Make sure to always use the descriptors of the current alternate setting
to avoid future issues when accessing fields that may differ between
settings.
Signed-off-by: Johan Hovold <johan@kernel.org>
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c4e4fccc5d52d881afaac11d3353265ef4eccb8b upstream.
[Why]
According to DP spec, it should shift left 4 digits for NO_STOP_BIT
in REMOTE_I2C_READ message. Not 5 digits.
In current code, NO_STOP_BIT is always set to zero which means I2C
master is always generating a I2C stop at the end of each I2C write
transaction while handling REMOTE_I2C_READ sideband message. This issue
might have the generated I2C signal not meeting the requirement. Take
random read in I2C for instance, I2C master should generate a repeat
start to start to read data after writing the read address. This issue
will cause the I2C master to generate a stop-start rather than a
re-start which is not expected in I2C random read.
[How]
Correct the shifting value of NO_STOP_BIT for DP_REMOTE_I2C_READ case in
drm_dp_encode_sideband_req().
Changes since v1:(https://patchwork.kernel.org/patch/11312667/)
* Add more descriptions in commit and cc to stable
Fixes: ad7f8a1f9ced ("drm/helper: add Displayport multi-stream helper (v0.6)")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200103055001.10287-1-Wayne.Lin@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit cb222aed03d798fc074be55e59d9a112338ee784 upstream.
If we happen to have a garbage in input device's keycode table with values
too big we'll end up doing clear_bit() with offset way outside of our
bitmaps, damaging other objects within an input device or even outside of
it. Let's add sanity checks to the returned old keycodes.
Reported-by: syzbot+c769968809f9359b07aa@syzkaller.appspotmail.com
Reported-by: syzbot+76f3a30e88d256644c78@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20191207212757.GA245964@dtor-ws
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4f3882177240a1f55e45a3d241d3121341bead78 upstream.
We should not be leaving half-mapped usages with potentially invalid
keycodes, as that may confuse hidinput_find_key() when the key is located
by index, which may end up feeding way too large keycode into the VT
keyboard handler and cause OOB write there:
BUG: KASAN: global-out-of-bounds in clear_bit include/asm-generic/bitops-instrumented.h:56 [inline]
BUG: KASAN: global-out-of-bounds in kbd_keycode drivers/tty/vt/keyboard.c:1411 [inline]
BUG: KASAN: global-out-of-bounds in kbd_event+0xe6b/0x3790 drivers/tty/vt/keyboard.c:1495
Write of size 8 at addr ffffffff89a1b2d8 by task syz-executor108/1722
...
kbd_keycode drivers/tty/vt/keyboard.c:1411 [inline]
kbd_event+0xe6b/0x3790 drivers/tty/vt/keyboard.c:1495
input_to_handler+0x3b6/0x4c0 drivers/input/input.c:118
input_pass_values.part.0+0x2e3/0x720 drivers/input/input.c:145
input_pass_values drivers/input/input.c:949 [inline]
input_set_keycode+0x290/0x320 drivers/input/input.c:954
evdev_handle_set_keycode_v2+0xc4/0x120 drivers/input/evdev.c:882
evdev_do_ioctl drivers/input/evdev.c:1150 [inline]
Cc: stable@vger.kernel.org
Reported-by: syzbot+19340dff067c2d3835c0@syzkaller.appspotmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit be54e7461ffdc5809b67d2aeefc1ddc9a91470c7 upstream.
Always return EPOLLOUT from uhid_char_poll to allow polling /dev/uhid
for writable state.
Fixes: 1f9dec1e0164 ("HID: uhid: allow poll()'ing on uhid devices")
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8ec321e96e056de84022c032ffea253431a83c3c upstream.
The syzbot fuzzer found a slab-out-of-bounds bug in the HID report
handler. The bug was caused by a report descriptor which included a
field with size 12 bits and count 4899, for a total size of 7349
bytes.
The usbhid driver uses at most a single-page 4-KB buffer for reports.
In the test there wasn't any problem about overflowing the buffer,
since only one byte was received from the device. Rather, the bug
occurred when the HID core tried to extract the data from the report
fields, which caused it to try reading data beyond the end of the
allocated buffer.
This patch fixes the problem by rejecting any report whose total
length exceeds the HID_MAX_BUFFER_SIZE limit (minus one byte to allow
for a possible report index). In theory a device could have a report
longer than that, but if there was such a thing we wouldn't handle it
correctly anyway.
Reported-and-tested-by: syzbot+09ef48aa58261464b621@syzkaller.appspotmail.com
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@vger.kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b8299d362d0837ae39e87e9019ebe6b736e0f035 upstream.
On some archs with some configurations, MCOUNT_INSN_SIZE is not defined, and
this makes the stack tracer fail to compile. Just define it to zero in this
case.
Link: https://lore.kernel.org/r/202001020219.zvE3vsty%lkp@intel.com
Cc: stable@vger.kernel.org
Fixes: 4df297129f622 ("tracing: Remove most or all of stack tracer stack size from stack_max_size")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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sched_migrate_task fail
commit 50f9ad607ea891a9308e67b81f774c71736d1098 upstream.
In the function, if register_trace_sched_migrate_task() returns error,
sched_switch/sched_wakeup_new/sched_wakeup won't unregister. That is
why fail_deprobe_sched_switch was added.
Link: http://lkml.kernel.org/r/20191231133530.2794-1-pilgrimtao@gmail.com
Cc: stable@vger.kernel.org
Fixes: 478142c39c8c2 ("tracing: do not grab lock in wakeup latency function tracing")
Signed-off-by: Kaitao Cheng <pilgrimtao@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 51d4efab7865e6ea6a4ebcd25b3f03c019515c4c upstream.
Bose Companion 5 (with USB ID 05a7:1020) doesn't seem supporting
reading back the sample rate, so the existing quirk is needed.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206063
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200104110936.14288-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c1ffba305dbcf3fb9ca969c20a97acbddc38f8e9 upstream.
On shutdown, ehci_power_off() is called unconditionally to power off
each port, even if it was never called to power on the port.
For chipidea, this results in a call to ehci_ci_portpower() with a request
to power off ports even if the port was never powered on.
This results in the following warning from the regulator code.
WARNING: CPU: 0 PID: 182 at drivers/regulator/core.c:2596 _regulator_disable+0x1a8/0x210
unbalanced disables for usb_otg2_vbus
Modules linked in:
CPU: 0 PID: 182 Comm: init Not tainted 5.4.6 #1
Hardware name: Freescale i.MX7 Dual (Device Tree)
[<c0313658>] (unwind_backtrace) from [<c030d698>] (show_stack+0x10/0x14)
[<c030d698>] (show_stack) from [<c1133afc>] (dump_stack+0xe0/0x10c)
[<c1133afc>] (dump_stack) from [<c0349098>] (__warn+0xf4/0x10c)
[<c0349098>] (__warn) from [<c0349128>] (warn_slowpath_fmt+0x78/0xbc)
[<c0349128>] (warn_slowpath_fmt) from [<c09f36ac>] (_regulator_disable+0x1a8/0x210)
[<c09f36ac>] (_regulator_disable) from [<c09f374c>] (regulator_disable+0x38/0xe8)
[<c09f374c>] (regulator_disable) from [<c0df7bac>] (ehci_ci_portpower+0x38/0xdc)
[<c0df7bac>] (ehci_ci_portpower) from [<c0db4fa4>] (ehci_port_power+0x50/0xa4)
[<c0db4fa4>] (ehci_port_power) from [<c0db5420>] (ehci_silence_controller+0x5c/0xc4)
[<c0db5420>] (ehci_silence_controller) from [<c0db7644>] (ehci_stop+0x3c/0xcc)
[<c0db7644>] (ehci_stop) from [<c0d5bdc4>] (usb_remove_hcd+0xe0/0x19c)
[<c0d5bdc4>] (usb_remove_hcd) from [<c0df7638>] (host_stop+0x38/0xa8)
[<c0df7638>] (host_stop) from [<c0df2f34>] (ci_hdrc_remove+0x44/0xe4)
...
Keeping track of the power enable state avoids the warning and traceback.
Fixes: c8679a2fb8dec ("usb: chipidea: host: add portpower override")
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: Peter Chen <peter.chen@freescale.com>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20191226155754.25451-1-linux@roeck-us.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 68faa679b8be1a74e6663c21c3a9d25d32f1c079 upstream.
'chrdev_open()' calls 'cdev_get()' to obtain a reference to the
'struct cdev *' stashed in the 'i_cdev' field of the target inode
structure. If the pointer is NULL, then it is initialised lazily by
looking up the kobject in the 'cdev_map' and so the whole procedure is
protected by the 'cdev_lock' spinlock to serialise initialisation of
the shared pointer.
Unfortunately, it is possible for the initialising thread to fail *after*
installing the new pointer, for example if the subsequent '->open()' call
on the file fails. In this case, 'cdev_put()' is called, the reference
count on the kobject is dropped and, if nobody else has taken a reference,
the release function is called which finally clears 'inode->i_cdev' from
'cdev_purge()' before potentially freeing the object. The problem here
is that a racing thread can happily take the 'cdev_lock' and see the
non-NULL pointer in the inode, which can result in a refcount increment
from zero and a warning:
| ------------[ cut here ]------------
| refcount_t: addition on 0; use-after-free.
| WARNING: CPU: 2 PID: 6385 at lib/refcount.c:25 refcount_warn_saturate+0x6d/0xf0
| Modules linked in:
| CPU: 2 PID: 6385 Comm: repro Not tainted 5.5.0-rc2+ #22
| Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
| RIP: 0010:refcount_warn_saturate+0x6d/0xf0
| Code: 05 55 9a 15 01 01 e8 9d aa c8 ff 0f 0b c3 80 3d 45 9a 15 01 00 75 ce 48 c7 c7 00 9c 62 b3 c6 08
| RSP: 0018:ffffb524c1b9bc70 EFLAGS: 00010282
| RAX: 0000000000000000 RBX: ffff9e9da1f71390 RCX: 0000000000000000
| RDX: ffff9e9dbbd27618 RSI: ffff9e9dbbd18798 RDI: ffff9e9dbbd18798
| RBP: 0000000000000000 R08: 000000000000095f R09: 0000000000000039
| R10: 0000000000000000 R11: ffffb524c1b9bb20 R12: ffff9e9da1e8c700
| R13: ffffffffb25ee8b0 R14: 0000000000000000 R15: ffff9e9da1e8c700
| FS: 00007f3b87d26700(0000) GS:ffff9e9dbbd00000(0000) knlGS:0000000000000000
| CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
| CR2: 00007fc16909c000 CR3: 000000012df9c000 CR4: 00000000000006e0
| DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
| DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
| Call Trace:
| kobject_get+0x5c/0x60
| cdev_get+0x2b/0x60
| chrdev_open+0x55/0x220
| ? cdev_put.part.3+0x20/0x20
| do_dentry_open+0x13a/0x390
| path_openat+0x2c8/0x1470
| do_filp_open+0x93/0x100
| ? selinux_file_ioctl+0x17f/0x220
| do_sys_open+0x186/0x220
| do_syscall_64+0x48/0x150
| entry_SYSCALL_64_after_hwframe+0x44/0xa9
| RIP: 0033:0x7f3b87efcd0e
| Code: 89 54 24 08 e8 a3 f4 ff ff 8b 74 24 0c 48 8b 3c 24 41 89 c0 44 8b 54 24 08 b8 01 01 00 00 89 f4
| RSP: 002b:00007f3b87d259f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
| RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b87efcd0e
| RDX: 0000000000000000 RSI: 00007f3b87d25a80 RDI: 00000000ffffff9c
| RBP: 00007f3b87d25e90 R08: 0000000000000000 R09: 0000000000000000
| R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffe188f504e
| R13: 00007ffe188f504f R14: 00007f3b87d26700 R15: 0000000000000000
| ---[ end trace 24f53ca58db8180a ]---
Since 'cdev_get()' can already fail to obtain a reference, simply move
it over to use 'kobject_get_unless_zero()' instead of 'kobject_get()',
which will cause the racing thread to return -ENXIO if the initialising
thread fails unexpectedly.
Cc: Hillf Danton <hdanton@sina.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: syzbot+82defefbbd8527e1c2cb@syzkaller.appspotmail.com
Signed-off-by: Will Deacon <will@kernel.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191219120203.32691-1-will@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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commit c70c176ff8c3ff0ac6ef9a831cd591ea9a66bd1a upstream.
Make the function available for outside use and fortify it against NULL
kobject.
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.209
PM / devfreq: Don't fail devfreq_dev_release if not in list
RDMA/cma: add missed unregister_pernet_subsys in init failure
scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
scsi: qla2xxx: Don't call qlt_async_event twice
scsi: iscsi: qla4xxx: fix double free in probe
scsi: libsas: stop discovering if oob mode is disconnected
usb: gadget: fix wrong endpoint desc
md: raid1: check rdev before reference in raid1_sync_request func
s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits
s390/cpum_sf: Avoid SBD overflow condition in irq handler
xen/balloon: fix ballooned page accounting without hotplug enabled
xfs: fix mount failure crash on invalid iclog memory access
taskstats: fix data-race
Revert "perf report: Add warning when libunwind not compiled in"
ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
MIPS: Avoid VDSO ABI breakage due to global register variable
locks: print unsigned ino in /proc/locks
dmaengine: Fix access to uninitialized dma_slave_caps
compat_ioctl: block: handle Persistent Reservations
gpiolib: fix up emulated open drain outputs
ALSA: cs4236: fix error return comparison of an unsigned integer
ftrace: Avoid potential division by zero in function profiler
Bluetooth: btusb: fix PM leak in error case of setup
Bluetooth: delete a stray unlock
tty: serial: msm_serial: Fix lockup for sysrq and oops
drm/mst: Fix MST sideband up-reply failure handling
powerpc/pseries/hvconsole: Fix stack overread via udbg
ath9k_htc: Modify byte order for an error message
ath9k_htc: Discard undersized packets
net: add annotations on hh->hh_len lockless accesses
s390/smp: fix physical to logical CPU map for SMT
locking/x86: Remove the unused atomic_inc_short() methd
pstore/ram: Write new dumps to start of recycled zones
locking/spinlock/debug: Fix various data races
netfilter: ctnetlink: netns exit must wait for callbacks
ARM: vexpress: Set-up shared OPP table instead of individual for each CPU
netfilter: uapi: Avoid undefined left-shift in xt_sctp.h
ARM: dts: am437x-gp/epos-evm: fix panel compatible
powerpc: Ensure that swiotlb buffer is allocated from low memory
bnx2x: Do not handle requests from VFs after parity
bnx2x: Fix logic to get total no. of PFs per engine
net: usb: lan78xx: Fix error message format specifier
rfkill: Fix incorrect check to avoid NULL pointer dereference
ASoC: wm8962: fix lambda value
regulator: rn5t618: fix module aliases
kconfig: don't crash on NULL expressions in expr_eq()
parisc: Fix compiler warnings in debug_core.c
llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c)
net: stmmac: dwmac-sunxi: Allow all RGMII modes
net: usb: lan78xx: fix possible skb leak
pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM
sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY
tcp: fix "old stuff" D-SACK causing SACK to be treated as D-SACK
vlan: vlan_changelink() should propagate errors
vlan: fix memory leak in vlan_dev_set_egress_priority
vxlan: fix tos value before xmit
macvlan: do not assume mac_header is set in macvlan_broadcast()
USB: core: fix check for duplicate endpoints
USB: serial: option: add Telit ME910G1 0x110a composition
Linux 4.4.209
Change-Id: Id229502365a315c24e126e98eab040cb6f40c1d5
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 0d3010fa442429f8780976758719af05592ff19f upstream.
This patch adds the following Telit ME910G1 composition:
0x110a: tty, tty, tty, rmnet
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3e4f8e21c4f27bcf30a48486b9dcc269512b79ff upstream.
Amend the endpoint-descriptor sanity checks to detect all duplicate
endpoint addresses in a configuration.
Commit 0a8fd1346254 ("USB: fix problems with duplicate endpoint
addresses") added a check for duplicate endpoint addresses within a
single alternate setting, but did not look for duplicate addresses in
other interfaces.
The current check would also not detect all duplicate addresses when one
endpoint is as a (bi-directional) control endpoint.
This specifically avoids overwriting the endpoint entries in struct
usb_device when enabling a duplicate endpoint, something which could
potentially lead to crashes or leaks, for example, when endpoints are
later disabled.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20191219161016.6695-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 96cc4b69581db68efc9749ef32e9cf8e0160c509 ]
Use of eth_hdr() in tx path is error prone.
Many drivers call skb_reset_mac_header() before using it,
but others do not.
Commit 6d1ccff62780 ("net: reset mac header in dev_start_xmit()")
attempted to fix this generically, but commit d346a3fae3ff
("packet: introduce PACKET_QDISC_BYPASS socket option") brought
back the macvlan bug.
Lets add a new helper, so that tx paths no longer have
to call skb_reset_mac_header() only to get a pointer
to skb->data.
Hopefully we will be able to revert 6d1ccff62780
("net: reset mac header in dev_start_xmit()") and save few cycles
in transmit fast path.
BUG: KASAN: use-after-free in __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline]
BUG: KASAN: use-after-free in mc_hash drivers/net/macvlan.c:251 [inline]
BUG: KASAN: use-after-free in macvlan_broadcast+0x547/0x620 drivers/net/macvlan.c:277
Read of size 4 at addr ffff8880a4932401 by task syz-executor947/9579
CPU: 0 PID: 9579 Comm: syz-executor947 Not tainted 5.5.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374
__kasan_report.cold+0x1b/0x41 mm/kasan/report.c:506
kasan_report+0x12/0x20 mm/kasan/common.c:639
__asan_report_load_n_noabort+0xf/0x20 mm/kasan/generic_report.c:145
__get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline]
mc_hash drivers/net/macvlan.c:251 [inline]
macvlan_broadcast+0x547/0x620 drivers/net/macvlan.c:277
macvlan_queue_xmit drivers/net/macvlan.c:520 [inline]
macvlan_start_xmit+0x402/0x77f drivers/net/macvlan.c:559
__netdev_start_xmit include/linux/netdevice.h:4447 [inline]
netdev_start_xmit include/linux/netdevice.h:4461 [inline]
dev_direct_xmit+0x419/0x630 net/core/dev.c:4079
packet_direct_xmit+0x1a9/0x250 net/packet/af_packet.c:240
packet_snd net/packet/af_packet.c:2966 [inline]
packet_sendmsg+0x260d/0x6220 net/packet/af_packet.c:2991
sock_sendmsg_nosec net/socket.c:639 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:659
__sys_sendto+0x262/0x380 net/socket.c:1985
__do_sys_sendto net/socket.c:1997 [inline]
__se_sys_sendto net/socket.c:1993 [inline]
__x64_sys_sendto+0xe1/0x1a0 net/socket.c:1993
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x442639
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 5b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffc13549e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000442639
RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000003
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000403bb0 R14: 0000000000000000 R15: 0000000000000000
Allocated by task 9389:
save_stack+0x23/0x90 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
__kasan_kmalloc mm/kasan/common.c:513 [inline]
__kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:486
kasan_kmalloc+0x9/0x10 mm/kasan/common.c:527
__do_kmalloc mm/slab.c:3656 [inline]
__kmalloc+0x163/0x770 mm/slab.c:3665
kmalloc include/linux/slab.h:561 [inline]
tomoyo_realpath_from_path+0xc5/0x660 security/tomoyo/realpath.c:252
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x230/0x430 security/tomoyo/file.c:822
tomoyo_inode_getattr+0x1d/0x30 security/tomoyo/tomoyo.c:129
security_inode_getattr+0xf2/0x150 security/security.c:1222
vfs_getattr+0x25/0x70 fs/stat.c:115
vfs_statx_fd+0x71/0xc0 fs/stat.c:145
vfs_fstat include/linux/fs.h:3265 [inline]
__do_sys_newfstat+0x9b/0x120 fs/stat.c:378
__se_sys_newfstat fs/stat.c:375 [inline]
__x64_sys_newfstat+0x54/0x80 fs/stat.c:375
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 9389:
save_stack+0x23/0x90 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
kasan_set_free_info mm/kasan/common.c:335 [inline]
__kasan_slab_free+0x102/0x150 mm/kasan/common.c:474
kasan_slab_free+0xe/0x10 mm/kasan/common.c:483
__cache_free mm/slab.c:3426 [inline]
kfree+0x10a/0x2c0 mm/slab.c:3757
tomoyo_realpath_from_path+0x1a7/0x660 security/tomoyo/realpath.c:289
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x230/0x430 security/tomoyo/file.c:822
tomoyo_inode_getattr+0x1d/0x30 security/tomoyo/tomoyo.c:129
security_inode_getattr+0xf2/0x150 security/security.c:1222
vfs_getattr+0x25/0x70 fs/stat.c:115
vfs_statx_fd+0x71/0xc0 fs/stat.c:145
vfs_fstat include/linux/fs.h:3265 [inline]
__do_sys_newfstat+0x9b/0x120 fs/stat.c:378
__se_sys_newfstat fs/stat.c:375 [inline]
__x64_sys_newfstat+0x54/0x80 fs/stat.c:375
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
The buggy address belongs to the object at ffff8880a4932000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 1025 bytes inside of
4096-byte region [ffff8880a4932000, ffff8880a4933000)
The buggy address belongs to the page:
page:ffffea0002924c80 refcount:1 mapcount:0 mapping:ffff8880aa402000 index:0x0 compound_mapcount: 0
raw: 00fffe0000010200 ffffea0002846208 ffffea00028f3888 ffff8880aa402000
raw: 0000000000000000 ffff8880a4932000 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8880a4932300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880a4932380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880a4932400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880a4932480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880a4932500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
Fixes: b863ceb7ddce ("[NET]: Add macvlan driver")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 71130f29979c7c7956b040673e6b9d5643003176 ]
Before ip_tunnel_ecn_encap() and udp_tunnel_xmit_skb() we should filter
tos value by RT_TOS() instead of using config tos directly.
vxlan_get_route() would filter the tos to fl4.flowi4_tos but we didn't
return it back, as geneve_get_v4_rt() did. So we have to use RT_TOS()
directly in function ip_tunnel_ecn_encap().
Fixes: 206aaafcd279 ("VXLAN: Use IP Tunnels tunnel ENC encap API")
Fixes: 1400615d64cf ("vxlan: allow setting ipv6 traffic class")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 9bbd917e0bec9aebdbd0c8dbc966caec15eb33e9 ]
There are few cases where the ndo_uninit() handler might be not
called if an error happens while device is initialized.
Since vlan_newlink() calls vlan_changelink() before
trying to register the netdevice, we need to make sure
vlan_dev_uninit() has been called at least once,
or we might leak allocated memory.
BUG: memory leak
unreferenced object 0xffff888122a206c0 (size 32):
comm "syz-executor511", pid 7124, jiffies 4294950399 (age 32.240s)
hex dump (first 32 bytes):
00 00 00 00 00 00 61 73 00 00 00 00 00 00 00 00 ......as........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000000eb3bb85>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
[<000000000eb3bb85>] slab_post_alloc_hook mm/slab.h:586 [inline]
[<000000000eb3bb85>] slab_alloc mm/slab.c:3320 [inline]
[<000000000eb3bb85>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3549
[<000000007b99f620>] kmalloc include/linux/slab.h:556 [inline]
[<000000007b99f620>] vlan_dev_set_egress_priority+0xcc/0x150 net/8021q/vlan_dev.c:194
[<000000007b0cb745>] vlan_changelink+0xd6/0x140 net/8021q/vlan_netlink.c:126
[<0000000065aba83a>] vlan_newlink+0x135/0x200 net/8021q/vlan_netlink.c:181
[<00000000fb5dd7a2>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3305
[<00000000ae4273a1>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3363
[<00000000decab39f>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5424
[<00000000accba4ee>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
[<00000000319fe20f>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442
[<00000000d51938dc>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
[<00000000d51938dc>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328
[<00000000e539ac79>] netlink_sendmsg+0x2c0/0x570 net/netlink/af_netlink.c:1917
[<000000006250c27e>] sock_sendmsg_nosec net/socket.c:639 [inline]
[<000000006250c27e>] sock_sendmsg+0x54/0x70 net/socket.c:659
[<00000000e2a156d1>] ____sys_sendmsg+0x2d0/0x300 net/socket.c:2330
[<000000008c87466e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2384
[<00000000110e3054>] __sys_sendmsg+0x80/0xf0 net/socket.c:2417
[<00000000d71077c8>] __do_sys_sendmsg net/socket.c:2426 [inline]
[<00000000d71077c8>] __se_sys_sendmsg net/socket.c:2424 [inline]
[<00000000d71077c8>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2424
Fixe: 07b5b17e157b ("[VLAN]: Use rtnl_link API")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit eb8ef2a3c50092bb018077c047b8dba1ce0e78e3 ]
Both vlan_dev_change_flags() and vlan_dev_set_egress_priority()
can return an error. vlan_changelink() should not ignore them.
Fixes: 07b5b17e157b ("[VLAN]: Use rtnl_link API")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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[ Upstream commit c9655008e7845bcfdaac10a1ed8554ec167aea88 ]
When we receive a D-SACK, where the sequence number satisfies:
undo_marker <= start_seq < end_seq <= prior_snd_una
we consider this is a valid D-SACK and tcp_is_sackblock_valid()
returns true, then this D-SACK is discarded as "old stuff",
but the variable first_sack_index is not marked as negative
in tcp_sacktag_write_queue().
If this D-SACK also carries a SACK that needs to be processed
(for example, the previous SACK segment was lost), this SACK
will be treated as a D-SACK in the following processing of
tcp_sacktag_write_queue(), which will eventually lead to
incorrect updates of undo_retrans and reordering.
Fixes: fd6dad616d4f ("[TCP]: Earlier SACK block verification & simplify access to them")
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit be7a7729207797476b6666f046d765bdf9630407 ]
This patch is to fix a memleak caused by no place to free cmd->obj.chunk
for the unprocessed SCTP_CMD_REPLY. This issue occurs when failing to
process a cmd while there're still SCTP_CMD_REPLY cmds on the cmd seq
with an allocated chunk in cmd->obj.chunk.
So fix it by freeing cmd->obj.chunk for each SCTP_CMD_REPLY cmd left on
the cmd seq when any cmd returns error. While at it, also remove 'nomem'
label.
Reported-by: syzbot+107c4aff5f392bf1517f@syzkaller.appspotmail.com
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit d9e15a2733067c9328fb56d98fe8e574fa19ec31 ]
As diagnosed by Florian :
If TCA_FQ_QUANTUM is set to 0x80000000, fq_deueue()
can loop forever in :
if (f->credit <= 0) {
f->credit += q->quantum;
goto begin;
}
... because f->credit is either 0 or -2147483648.
Let's limit TCA_FQ_QUANTUM to no more than 1 << 20 :
This max value should limit risks of breaking user setups
while fixing this bug.
Fixes: afe4fd062416 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Diagnosed-by: Florian Westphal <fw@strlen.de>
Reported-by: syzbot+dc9071cc5a85950bdfce@syzkaller.appspotmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 47240ba0cd09bb6fe6db9889582048324999dfa4 ]
If skb_linearize() fails, we need to free the skb.
TSO makes skb bigger, and this bug might be the reason
Raspberry Pi 3B+ users had to disable TSO.
Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: RENARD Pierre-Francois <pfrenard@gmail.com>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 52cc73e5404c7ba0cbfc50cb4c265108c84b3d5a ]
Allow all the RGMII modes to be used. This would allow us to represent
the hardware better in the device tree with RGMII_ID where in most
cases the PHY's internal delay for both RX and TX are used.
Fixes: af0bd4e9ba80 ("net: stmmac: sunxi platform extensions for GMAC in Allwinner A20 SoC's")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit af1c0e4e00f3cc76cb136ebf2e2c04e8b6446285 ]
When a frame with NULL DSAP is received, llc_station_rcv is called.
In turn, llc_stat_ev_rx_null_dsap_xid_c is called to check if it is a NULL
XID frame. The return statement of llc_stat_ev_rx_null_dsap_xid_c returns 1
when the incoming frame is not a NULL XID frame and 0 otherwise. Hence, a
NULL XID response is returned unexpectedly, e.g. when the incoming frame is
a NULL TEST command.
To fix the error, simply remove the conditional operator.
A similar error in llc_stat_ev_rx_null_dsap_test_c is also fixed.
Signed-off-by: Chan Shu Tak, Alex <alexchan@task.com.hk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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