If submitting the OOB write urb fails persistently (e.g if the device is
being disconnected) the driver would loop indefinitely with interrupts
disabled.
Check for urb submission errors when sending OOB commands to avoid
hanging if, for example, open(), set_termios() or close() races with a
physical disconnect.
This is issue was flagged by Sashiko when reviewing an unrelated change
to the driver.
Link: https://sashiko.dev/#/patchset/20260610132232.356139-1-johan%40kernel.org?part=1
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The digi_write_inb_command() is supposed to wait for the write urb to
become available or return an error, but instead it updates the transfer
buffer and tries to resubmit the urb on timeout.
To make things worse, for commands like break control where no timeout
is used, the driver would corrupt the urb immediately due to a broken
jiffies comparison (on 32-bit machines this takes five minutes of uptime
to trigger due to INITIAL_JIFFIES).
Fix this by adding the missing return on timeout and waiting
indefinitely when no timeout has been specified as intended.
This issue was (sort of) flagged by Sashiko when reviewing an unrelated
change to the driver.
Link: https://sashiko.dev/#/patchset/20260610132232.356139-1-johan%40kernel.org?part=11
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Here is the big set of USB and Thunderbolt driver changes for 7.2-rc1.
Lots of little stuff in here, major highlights include:
- USB4STREAM support for Thunderbolt devices. A new way to send "raw"
data very quickly over a USB4 connection to another system directly.
- Other thunderbolt updates and changes to make the stream code work
- xhci driver updates and additions
- typec driver updates and additions
- usb gadget driver updates and fixes for reported issues
- zh_CN documentation translation of the USB documentation
- usb-serial driver updates
- dts cleanups for some USB platforms
- other minor USB driver updates and tweaks
All of these have been in linux-next for over a week with no reported
issues, most of them for many many weeks.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt driver updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver changes for 7.2-rc1.
Lots of little stuff in here, major highlights include:
- USB4STREAM support for Thunderbolt devices. A new way to send "raw"
data very quickly over a USB4 connection to another system directly
- Other thunderbolt updates and changes to make the stream code work
- xhci driver updates and additions
- typec driver updates and additions
- usb gadget driver updates and fixes for reported issues
- zh_CN documentation translation of the USB documentation
- usb-serial driver updates
- dts cleanups for some USB platforms
- other minor USB driver updates and tweaks
All of these have been in linux-next for over a week with no reported
issues, most of them for many many weeks"
* tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (131 commits)
usb: ucsi: huawei_gaokun: support mode switching
thunderbolt: debugfs: Fix sideband write size check
thunderbolt: debugfs: Fix margining error counter buffer leak
usb: host: xhci-rcar: Split R-Car Gen2 and Gen3 .plat_start() handling
usb: host: xhci-rcar: Remove SET_XHCI_PLAT_PRIV_FOR_RCAR() macro
usb: xhci: allocate internal DCBAA mirror dynamically
usb: xhci: allocate DCBAA based on host controller max slots
usb: xhci: refactor DCBAA struct
xhci: Prevent queuing new commands if xhci is inaccessible
xhci: dbc: detect and recover hung DbC during enumeraton
xhci: dbc: add timestamps to DbC state changes in a new helper.
xhci: dbc: add helper to set and clear DbC DCE enable bit
xhci: dbc: serialize enabling and disabling dbc
xhci: dbc: Fix sysfs ABI Documentation for xhci dbc states
usb: xhci: Improve Soft Retries after short transfers
usb: xhci: Remove isochronous URB_SHORT_NOT_OK handling
usb: xhci: Remove skip_isoc_td()
usb: xhci: Simplify xhci_quiesce()
usb: xhci: remove legacy 'num_trbs_free' tracking
usb: xhci: fix typo in xhci_set_port_power() comment
...
Here are the USB serial updates for 7.2-rc1, including:
- an updated mxuport number-of-ports encoding, and
- include directive cleanups
Everything has been in linux-next with no reported issues.
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Merge tag 'usb-serial-7.2-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB serial updates for 7.2-rc1
Here are the USB serial updates for 7.2-rc1, including:
- an updated mxuport number-of-ports encoding, and
- include directive cleanups
Everything has been in linux-next with no reported issues.
* tag 'usb-serial-7.2-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: whiteheat: drop termbits include
USB: serial: add missing atomic includes
USB: serial: garmin_gps: drop unused atomic include
USB: serial: drop unused moduleparam includes
USB: serial: drop unused uaccess includes
USB: serial: xr: add missing uaccess include
USB: serial: drop unused tty_flip includes
USB: serial: drop unused tty_driver includes
USB: serial: mxuport: update number-of-ports encoding
klsi_105_prepare_write_buffer() is called by the generic write path
with the bulk-out buffer and its size (bulk_out_size, 64 bytes). It
stores a two-byte length header at the start of the buffer and copies
the payload from the write fifo starting at buf + KLSI_HDR_LEN, but
passes the full buffer size as the number of bytes to copy:
count = kfifo_out_locked(&port->write_fifo, buf + KLSI_HDR_LEN,
size, &port->lock);
When the fifo holds at least size bytes, size bytes are copied starting
two bytes into the size-byte buffer, writing KLSI_HDR_LEN bytes past its
end. Copy at most size - KLSI_HDR_LEN bytes instead, leaving room for
the header as safe_serial already does.
Writing bulk_out_size or more bytes to the tty triggers a slab
out-of-bounds write, observed with KASAN by emulating the device with
dummy_hcd and raw-gadget:
BUG: KASAN: slab-out-of-bounds in kfifo_copy_out+0x83/0xc0
Write of size 64 at addr ffff888112c62202 by task python3
kfifo_copy_out
klsi_105_prepare_write_buffer [kl5kusb105]
usb_serial_generic_write_start [usbserial]
Allocated by task 139:
usb_serial_probe [usbserial]
The buggy address is located 2 bytes inside of allocated 64-byte region
The out-of-bounds write no longer occurs with this change applied.
Fixes: 60b3013cda ("USB: kl5usb105: reimplement using generic framework")
Cc: stable@vger.kernel.org
Assisted-by: Claude:claude-opus-4-8
Signed-off-by: HyeongJun An <sammiee5311@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
build_i2c_fw_hdr() allocates a fixed-size buffer of
(16*1024 - 512) + sizeof(struct ti_i2c_firmware_rec) bytes, then
copies le16_to_cpu(img_header->Length) bytes into it without
validating that Length fits within the available space after the
firmware record header.
img_header->Length is a __le16 from the firmware file and can be
up to 65535. check_fw_sanity() validates the total firmware size
but not img_header->Length specifically.
Fix by rejecting images where img_header->Length exceeds the
available destination space.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Korwel <adriank20047@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the
device I2C EEPROM into a buffer allocated with kmalloc_obj(), which
is sizeof(struct edge_ti_manuf_descriptor) = 10 bytes.
The Size field comes from the device and is only validated (in
check_i2c_image()) to make sure the descriptor fits within
TI_MAX_I2C_SIZE (16384 bytes), not against the destination buffer size.
A malicious USB device can therefore set Size to any value up to 16377,
causing a heap overflow of up to 16367 bytes when plugged into a host
running this driver.
valid_csum() is called after read_rom() and also iterates
buffer[0..Size-1], compounding the out-of-bounds access.
Fix by rejecting descriptors with unexpected length before calling
read_rom().
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Korwel <adriank20047@gmail.com>
[ johan: amend commit message; also check for short descriptors ]
Signed-off-by: Johan Hovold <johan@kernel.org>
cypress_read_int_callback() parses the interrupt-in buffer according to
the selected Cypress packet format. Format 1 has a two-byte status/count
header and format 2 has a one-byte combined status/count header. The
usb-serial core sizes the interrupt-in buffer from the endpoint
descriptor's wMaxPacketSize, and successful interrupt transfers can
complete short when URB_SHORT_NOT_OK is not set.
Check that the completed packet contains the selected header before
reading it. Malformed short reports are ignored and the interrupt URB is
resubmitted through the existing retry path, preventing out-of-bounds
header-byte reads.
KASAN report as below:
KASAN slab-out-of-bounds in cypress_read_int_callback+0x240/0x7f0
Read of size 1
Call trace:
cypress_read_int_callback() (drivers/usb/serial/cypress_m8.c:1009)
__usb_hcd_giveback_urb()
dummy_timer()
Fixes: 3416eaa1f8 ("USB: cypress_m8: Packet format is separate from characteristic size")
Assisted-by: Codex:gpt-5.5
Signed-off-by: Zhang Cen <rollkingzzc@gmail.com>
Fixes: 3416eaa1f8 ("USB: cypress_m8: Packet format is separate from characteristic size")
Cc: stable@vger.kernel.org # 2.6.26
[ johan: use constants in header length sanity checks ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Make sure that the bulk-out buffer size is at least eight bytes to avoid
user-controlled slab corruption in "safe" mode should a malicious device
report a smaller size.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Make sure that the bulk-out buffers are at least as large as the
hardcoded transfer size to avoid user-controlled slab corruption should
a malicious device report a smaller endpoint max packet size than
expected.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Make sure that the bulk-out endpoint max packet size is at least eight
bytes to avoid user-controlled slab corruption should a malicious device
report a smaller size.
Fixes: ee467a1f20 ("USB: serial: add Moxa UPORT 12XX/14XX/16XX driver")
Cc: stable@vger.kernel.org # 3.14
Cc: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Make sure that the interrupt-out endpoint max packet size is at least
eight bytes to avoid user-controlled slab corruption or NULL-pointer
dereference should a malicious device report a smaller size.
Fixes: 3416eaa1f8 ("USB: cypress_m8: Packet format is separate from characteristic size")
Cc: stable@vger.kernel.org # 2.6.26
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Add the missing sanity check on the size of interrupt-in transfers to
avoid parsing stale or uninitialised slab data (and leaking it to user
space).
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The driver overrides the maximum transfer size for a specific device
which only accepts 16 byte packets for its 32 byte bulk-out endpoint.
Make sure to never increase the maximum transfer size to prevent slab
corruption should a malicious device report a smaller endpoint max
packet size than expected.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Add the missing sanity check on the size of usa49wg indat transfers to
avoid parsing stale or uninitialised slab data.
Fixes: 0ca1268e10 ("USB Serial Keyspan: add support for USA-49WG & USA-28XG")
Cc: stable@vger.kernel.org # 2.6.23
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The Belkin interrupt callback treats interrupt data as a four-byte
status report and reads LSR/MSR fields at offsets 2 and 3. The
interrupt-in buffer length is derived from endpoint wMaxPacketSize, and
short interrupt transfers may complete successfully with a smaller
actual_length.
Check the completed interrupt packet length before parsing status
fields so short interrupt endpoints and short successful packets are
ignored instead of causing out-of-bounds or stale status-byte reads.
KASAN report as below:
BUG: KASAN: slab-out-of-bounds in belkin_sa_read_int_callback()
Read of size 1
Call trace:
belkin_sa_read_int_callback() (drivers/usb/serial/belkin_sa.c:202)
__usb_hcd_giveback_urb() (drivers/usb/core/hcd.c:1630)
dummy_timer() (?:?)
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Assisted-by: Codex:gpt-5.5
Signed-off-by: Zhang Cen <rollkingzzc@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
The termios definitions are provided by the termios.h header file which
is included by tty.h so drop the redundant asm/termbits.h include
directive.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Add the missing atomic.h include to the two driver that use it but did
not include it directly.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This driver no longer uses anything from atomic.h so drop the unused
include directive.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
These drivers (and usb-serial.c) no longer use anything from
moduleparam.h so drop the unnecessary include directives.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
These drivers (and usb-serial.c) no longer use anything from uaccess.h
directly so drop the unnecessary include directives.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Add the missing uaccess.h include, which is needed since TIOCSRS485
support was added, instead of relying on the header being included
indirectly.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
These drivers (and usb-serial.c) no longer use anything from tty_flip.h
directly so drop the unnecessary include directives.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
USB serial drivers do not use anything from tty_driver.h directly (only
core does) so drop the unnecessary include directives.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
In preparation for adding support for 3, 5, 6 and 7 port devices, replace
the current one-bit-per-type encoding of the number of ports with a more
compact four bit encoding (2..16 ports or undefined).
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Here are the USB serial updates for 7.1-rc1, including:
- use strscpy() instead of strcpy()
- new modem device id
All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB serial updates for 7.1-rc1
Here are the USB serial updates for 7.1-rc1, including:
- use strscpy() instead of strcpy()
- new modem device id
All have been in linux-next with no reported issues.
* tag 'usb-serial-7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: iuu_phoenix: fix iuutool author name
USB: serial: option: add Telit Cinterion FN990A MBIM composition
USB: serial: ti_usb_3410_5052: use strscpy() instead of strcpy()
The original iuutool author is Juan Carlos Borrás - fix the spelling.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'v7.0-rc7' into usb-next
We need the USB fixes in here to build on and for testing
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use a safer function strscpy() instead of strcpy() for copying to
arrays.
Only idiomatic code replacement, and no functional changes.
Signed-off-by: Ai Chao <aichao@kylinos.cn>
Signed-off-by: Johan Hovold <johan@kernel.org>
The Blackbox 724-746-5500 USB Director USB-RS-232 HUB, part number
IC135A, is a rebadged Edgeport/4 with its own USB device id.
Signed-off-by: Frej Drejhammar <frej@stacken.kth.se>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Use a safer function strscpy() instead of strcpy() for copying to
arrays.
Only idiomatic code replacement, and no functional changes.
Signed-off-by: Ai Chao <aichao@kylinos.cn>
Link: https://patch.msgid.link/20260310094434.3639602-2-aichao@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This converts some of the visually simpler cases that have been split
over multiple lines. I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.
Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script. I probably had made it a bit _too_ trivial.
So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.
The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
The Fintek F81532A/534A/535/536 family relies on the
F81534A_CTRL_CMD_ENABLE_PORT (116h) register during initialization to
both determine serial port status and control port creation. If the
driver experiences fast load/unload cycles, the device state may becomes
unstable, resulting in the incomplete generation of serial ports.
Performing a dummy read operation on the register prior to the initial
write command resolves the issue. This clears the device's stale internal
state. Subsequent write operations will correctly generate all serial
ports.
This patch also removes the retry loop in f81534a_ctrl_set_register()
because the stale state has been fixed.
Tested on: HygonDM1SLT(Hygon C86 3250 8-core Processor)
Signed-off-by: Ji-Ze Hong (Peter Hong) <peter_hong@fintek.com.tw>
Signed-off-by: Johan Hovold <johan@kernel.org>
Here is the big set of USB and Thunderbolt driver updates for 6.19-rc1.
Nothing major here, just lots of tiny updates for most of the common USB
drivers. Included in here are:
- more xhci driver updates and fixes
- Thunderbolt driver cleanups
- usb serial driver updates
- typec driver updates
- USB tracepoint additions
- dwc3 driver updates, including support for Apple hardware
- lots of other smaller driver updates and cleanups
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-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver updates for
6.19-rc1. Nothing major here, just lots of tiny updates for most of
the common USB drivers. Included in here are:
- more xhci driver updates and fixes
- Thunderbolt driver cleanups
- usb serial driver updates
- typec driver updates
- USB tracepoint additions
- dwc3 driver updates, including support for Apple hardware
- lots of other smaller driver updates and cleanups
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (161 commits)
usb: gadget: tegra-xudc: Always reinitialize data toggle when clear halt
USB: serial: option: move Telit 0x10c7 composition in the right place
USB: serial: option: add Telit Cinterion FE910C04 new compositions
usb: typec: ucsi: fix use-after-free caused by uec->work
usb: typec: ucsi: fix probe failure in gaokun_ucsi_probe()
usb: dwc3: core: Remove redundant comment in core init
usb: phy: Initialize struct usb_phy list_head
USB: serial: option: add Foxconn T99W760
usb: usb-storage: No additional quirks need to be added to the EL-R12 optical drive.
usb: typec: hd3ss3220: Enable VBUS based on ID pin state
dt-bindings: usb: ti,hd3ss3220: Add support for VBUS based on ID state
usb: typec: anx7411: add WQ_PERCPU to alloc_workqueue users
USB: add WQ_PERCPU to alloc_workqueue users
dt-bindings: usb: dwc3-xilinx: Describe the reset constraint for the versal platform
drivers/usb/storage: use min() instead of min_t()
usb: raw-gadget: cap raw_io transfer length to KMALLOC_MAX_SIZE
usb: ohci-da8xx: remove unused platform data
usb: gadget: functionfs: use dma_buf_unmap_attachment_unlocked() helper
usb: uas: reduce time under spinlock
usb: dwc3: eic7700: Add EIC7700 USB driver
...
Move Telit 0x10c7 composition right after 0x10c6 composition and
before 0x10c8 composition.
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
NDI devices have been using a latency timer of 1 ms since commit
b760dac290 ("USB: ftdi: support NDI devices"), which also added a
vendor specific module parameter that could be used to override the
default value for these devices.
Module parameters should generally be avoided as they apply to all
devices managed by a driver and vendor specific hacks should be kept out
of mainline.
Drop the module parameter in favour of the generic sysfs interface for
setting the latency timer (e.g. using udev rules) while keeping the
default 1 ms timer for NDI devices.
Note that there seems to be no (correct) public references to the module
parameter and most likely no one is using it.
Cc: Ryan Mann <rmann@ndigital.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
NDI devices remap the 19200 line speed to 1.2 Mbps.
Use the quirk pointer from the match table to enable the quirk instead
of comparing PIDs on every speed change.
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up the quirk function comments that were using odd formatting and
were referring to a non-existing function.
Signed-off-by: Johan Hovold <johan@kernel.org>
Rewrite the 8u2232c quirk to avoid the manufacturer and product string
comparisons for the second port which will always be bound.
Signed-off-by: Johan Hovold <johan@kernel.org>
Probe of a device should generally be silent unless errors are
encountered.
Stop logging that the JTAG port is ignored when probing devices with
such a reserved port.
This also maintains consistency with devices that match on interface
number to avoid binding to reserved ports.
Note that the message is not even correct for the second port of the ST
Micro Connect Lite.
Signed-off-by: Johan Hovold <johan@kernel.org>
Some FTDI devices have the first port reserved for JTAG and have been
using a dedicated quirk to prevent binding to it.
As can be inferred directly or indirectly from the commit messages,
almost all of these devices are dual port devices which means that the
more recently added macro for matching on interface number can be used
instead (and some such devices do so already).
This avoids probing interfaces that will never be bound and cleans up
the match table somewhat.
Note that the JTAG quirk is kept for quad port devices, which would
otherwise require three match entries.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
The U-Blox EVK-M101 enumerates as 1546:0506 [1] with four FTDI interfaces:
- EVK-M101 current sensors
- EVK-M101 I2C
- EVK-M101 UART
- EVK-M101 port D
Only the third USB interface is a UART. This change lets ftdi_sio probe
the VID/PID and registers only interface #3 as a TTY, leaving the rest
available for other drivers.
[1]
usb 5-1.3: new high-speed USB device number 11 using xhci_hcd
usb 5-1.3: New USB device found, idVendor=1546, idProduct=0506, bcdDevice= 8.00
usb 5-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 5-1.3: Product: EVK-M101
usb 5-1.3: Manufacturer: u-blox AG
Datasheet: https://content.u-blox.com/sites/default/files/documents/EVK-M10_UserGuide_UBX-21003949.pdf
Signed-off-by: Oleksandr Suvorov <cryosay@gmail.com>
Link: https://lore.kernel.org/20250926060235.3442748-1-cryosay@gmail.com/
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Drop unnecessary initialisation of variables that are always assigned
before being used.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up set_termios() by using a shorter identifier for the control
request value, replacing a ternary operator and adding some missing
braces to make it more readable.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Refactor by adding two control request helpers to make the code more
readable.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up the driver device type checks by moving logical operators to
the previous line and using consistent indentation of continuation
lines.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up the tiocmset() implementation by simplifying the flag check,
dropping some dev_dbg(), logging errors using dev_err() and using a
common control message call for both DTR and RTS to make the existing
logic easier to follow.
Note that the modem control lines are currently only manipulated in this
function, which therefore does not require any locking.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Clean up the tiocmset() implementation by dropping the dtr and rts flags
to make the logic a little easier to follow.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Asserting or deasserting a modem control line using TIOCMBIS or TIOCMBIC
should not deassert any lines that are not in the mask.
Fix this long-standing issue dating back to 2003 when the support for
these ioctls was added with the introduction of the tiocmset() callback.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Asserting or deasserting a modem control line using TIOCMBIS or TIOCMBIC
should not deassert any lines that are not in the mask.
Fix this long-standing regression dating back to 2003 when the
tiocmset() callback was introduced.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Here are the USB serial updates for 6.18-rc1 consisting of some new
modem device ids and a trivial cleanup.
Everything has been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.18-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB serial updates for 6.18-rc1
Here are the USB serial updates for 6.18-rc1 consisting of some new
modem device ids and a trivial cleanup.
Everything has been in linux-next with no reported issues.
* tag 'usb-serial-6.18-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add SIMCom 8230C compositions
USB: serial: oti6858: remove extranenous ; after comment
There is a redundant semicolon after a comment, remove it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
The conversion of all GPIO drivers to using the .set_rv() and
.set_multiple_rv() callbacks from struct gpio_chip (which - unlike their
predecessors - return an integer and allow the controller drivers to
indicate failures to users) is now complete and the legacy ones have
been removed. Rename the new callbacks back to their original names in
one sweeping change.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Here is the big set of USB and Thunderbolt driver changes for 6.17-rc1.
Lots of little things in here, mostly all small cleanups and updates, no
major new features this development cycle. Stuff included in here is:
- xhci minor tweaks for error handling
- typec minor updates and a driver update
- gadget driver api cleanups
- unused function removals
- unbind memory leak fixes
- a few new device ids added
- a few new devices supported for some drivers
- other minor cleanups and changes
All of these have been in linux-next with no reported issues, with the
leak fixes being in the shortest amount of time, but they are "obviously
correct" :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver changes for
6.17-rc1.
Lots of little things in here, mostly all small cleanups and updates,
no major new features this development cycle. Stuff included in here
is:
- xhci minor tweaks for error handling
- typec minor updates and a driver update
- gadget driver api cleanups
- unused function removals
- unbind memory leak fixes
- a few new device ids added
- a few new devices supported for some drivers
- other minor cleanups and changes
All of these have been in linux-next with no reported issues, with the
leak fixes being in the shortest amount of time, but they are
'obviously correct' :)"
* tag 'usb-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (100 commits)
usb: musb: omap2430: clean up probe error handling
usb: musb: omap2430: fix device leak at unbind
usb: gadget: udc: renesas_usb3: fix device leak at unbind
usb: dwc3: meson-g12a: fix device leaks at unbind
usb: dwc3: imx8mp: fix device leak at unbind
usb: musb: omap2430: enable compile testing
usb: gadget: udc: renesas_usb3: drop unused module alias
usb: xhci: print xhci->xhc_state when queue_command failed
usb: atm: cxacru: Merge cxacru_upload_firmware() into cxacru_heavy_init()
USB: serial: option: add Foxconn T99W709
usb: core: add urb->sgt parameter description
thunderbolt: Fix copy+paste error in match_service_id()
usb: typec: ucsi: Update power_supply on power role change
usb: typec: ucsi: psy: Set current max to 100mA for BC 1.2 and Default
usb: typec: fusb302: cache PD RX state
usb: typec: ucsi: yoga-c630: add DRM dependency
usb: gadget : fix use-after-free in composite_dev_cleanup()
usb: chipidea: imx: Add a missing blank line
usb: gadget: f_uac1: replace scnprintf() with sysfs_emit()
usb: usblp: clean up assignment inside if conditions
...
Here's a new modem device id.
This has been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.17-rc1-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB serial device id for 6.17-rc1
Here's a new modem device id.
This has been in linux-next with no reported issues.
* tag 'usb-serial-6.17-rc1-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add Foxconn T99W709
Here are the USB serial updates for 6.17-rc1, including
- switch to new gpiolib interface that can return errors
All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-6.17-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB serial updates for 6.17-rc1
Here are the USB serial updates for 6.17-rc1, including
- switch to new gpiolib interface that can return errors
All have been in linux-next with no reported issues.
* tag 'usb-serial-6.17-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: cp210x: use new GPIO line value setter callbacks
USB: serial: ftdi_sio: use new GPIO line value setter callbacks
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Merge tag 'v6.16-rc7' into tty-next
We need the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
NDI (Northern Digital Inc.) is introducing a new product called the
EMGUIDE GEMINI that will use an FTDI chip for USB serial communications.
Add the NDI EMGUIDE GEMINI product ID that uses the NDI Vendor ID
rather than the FTDI Vendor ID, unlike older products.
Signed-off-by: Ryan Mann <rmann@ndigital.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This code (tty_get -> vhangup -> tty_put) is repeated on few places.
Introduce a helper similar to tty_port_tty_hangup() (asynchronous) to
handle even vhangup (synchronous).
And use it on those places.
In fact, reuse the tty_port_tty_hangup()'s code and call tty_vhangup()
depending on a new bool parameter.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: David Lin <dtwlin@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Alex Elder <elder@kernel.org>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250611100319.186924-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move this API to the canonical timer_*() namespace.
[ tglx: Redone against pre rc1 ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com
Add new bcd (0x905) to support PL2303GT-2AB (TYPE_HXN).
Add new bcd (0x1005) to support PL2303GC-Q20 (TYPE_HXN).
Signed-off-by: Charles Yeh <charlesyeh522@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
usb_serial_device_match() takes a const pointer, and then decides to
cast it away into a non-const one, which is not a good thing to do
overall. Fix this up by properly setting the pointers to be const to
preserve that attribute.
Fixes: d69d804845 ("driver core: have match() callback in struct bus_type take a const *")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The read urb pointer is dereferenced before checking that it is non-NULL
during open(), but no check is needed as the existence of a bulk in
endpoint is verified during attach() since commit ef079936d3 ("USB:
serial: ti_usb_3410_5052: fix NULL-deref at open").
Drop the bogus read urb sanity check.
Signed-off-by: Johan Hovold <johan@kernel.org>
Add serial support for OWON HDS200 series oscilloscopes and likely
many other pieces of OWON test equipment.
OWON HDS200 series devices host two USB endpoints, designed to
facilitate bidirectional SCPI. SCPI is a predominately ASCII text
protocol for test/measurement equipment. Having a serial/tty interface
for these devices lowers the barrier to entry for anyone trying to
write programs to communicate with them.
The following shows the USB descriptor for the OWON HDS272S running
firmware V5.7.1:
Bus 001 Device 068: ID 5345:1234 Owon PDS6062T Oscilloscope
Negotiated speed: Full Speed (12Mbps)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 [unknown]
bDeviceSubClass 0 [unknown]
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x5345 Owon
idProduct 0x1234 PDS6062T Oscilloscope
bcdDevice 1.00
iManufacturer 1 oscilloscope
iProduct 2 oscilloscope
iSerial 3 oscilloscope
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0029
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 5 Physical Interface Device
bInterfaceSubClass 0 [unknown]
bInterfaceProtocol 0
iInterface 0
** UNRECOGNIZED: 09 21 11 01 00 01 22 5f 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 32
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 32
Device Status: 0x0000
(Bus Powered)
OWON appears to be using the same USB Vendor and Product ID for many
of their oscilloscopes. Looking at the discussion about the USB
vendor/product ID, in the link bellow, suggests that this VID/PID is
shared with VDS, SDS, PDS, and now the HDS series oscilloscopes.
Available documentation for these devices seems to indicate that all
use a similar SCPI protocol, some with RS232 options. It is likely that
this same simple serial setup would work correctly for them all.
Link: https://usb-ids.gowdy.us/read/UD/5345/1234
Signed-off-by: Craig Hesling <craig@hesling.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Abacus Electrics makes optical probes for interacting with smart meters
over an optical interface.
At least one version uses an FT232B chip (as detected by ftdi_sio) with
a custom USB PID, which needs to be added to the list to make the device
work in a plug-and-play fashion.
Signed-off-by: Michael Ehrenreich <michideep@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Here is the big set of USB and Thunderbolt driver updates for 6.15-rc1.
Included in here are:
- Thunderbolt driver and core api updates for new hardware and
features
- usb-storage const array cleanups
- typec driver updates
- dwc3 driver updates
- xhci driver updates and bugfixes
- small USB documentation updates
- usb cdns3 driver updates
- usb gadget driver updates
- other small driver updates and fixes
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-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver updates for
6.15-rc1. Included in here are:
- Thunderbolt driver and core api updates for new hardware and
features
- usb-storage const array cleanups
- typec driver updates
- dwc3 driver updates
- xhci driver updates and bugfixes
- small USB documentation updates
- usb cdns3 driver updates
- usb gadget driver updates
- other small driver updates and fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (92 commits)
thunderbolt: Do not add non-active NVM if NVM upgrade is disabled for retimer
thunderbolt: Scan retimers after device router has been enumerated
usb: host: cdns3: forward lost power information to xhci
usb: host: xhci-plat: allow upper layers to signal power loss
usb: xhci: change xhci_resume() parameters to explicit the desired info
usb: cdns3-ti: run HW init at resume() if HW was reset
usb: cdns3-ti: move reg writes to separate function
usb: cdns3: call cdns_power_is_lost() only once in cdns_resume()
usb: cdns3: rename hibernated argument of role->resume() to lost_power
usb: xhci: tegra: rename `runtime` boolean to `is_auto_runtime`
usb: host: xhci-plat: mvebu: use ->quirks instead of ->init_quirk() func
usb: dwc3: Don't use %pK through printk
usb: core: Don't use %pK through printk
usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev()
dt-bindings: usb: qcom,dwc3: Synchronize minItems for interrupts and -names
usb: common: usb-conn-gpio: switch psy_cfg from of_node to fwnode
usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running
usb: xhci: Don't change the status of stalled TDs on failed Stop EP
xhci: Avoid queuing redundant Stop Endpoint command for stalled endpoint
xhci: Handle spurious events on Etron host isoc enpoints
...
The Altera USB Blaster 3, available as both a cable and an on-board
solution, is primarily used for programming and debugging FPGAs.
It interfaces with host software such as Quartus Programmer,
System Console, SignalTap, and Nios Debugger. The device utilizes
either an FT2232 or FT4232 chip.
Enabling the support for various configurations of the on-board
USB Blaster 3 by including the appropriate VID/PID pairs,
allowing it to function as a serial device via ftdi_sio.
Note that this check-in does not include support for the
cable solution, as it does not support UART functionality.
The supported configurations are determined by the
hardware design and include:
1) PID 0x6022, FT2232, 1 JTAG port (Port A) + Port B as UART
2) PID 0x6025, FT4232, 1 JTAG port (Port A) + Port C as UART
3) PID 0x6026, FT4232, 1 JTAG port (Port A) + Port C, D as UART
4) PID 0x6029, FT4232, 1 JTAG port (Port B) + Port C as UART
5) PID 0x602a, FT4232, 1 JTAG port (Port B) + Port C, D as UART
6) PID 0x602c, FT4232, 1 JTAG port (Port A) + Port B as UART
7) PID 0x602d, FT4232, 1 JTAG port (Port A) + Port B, C as UART
8) PID 0x602e, FT4232, 1 JTAG port (Port A) + Port B, C, D as UART
These configurations allow for flexibility in how the USB Blaster 3 is
used, depending on the specific needs of the hardware design.
Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
The correct name for FE990 is FE990A so use it in order to avoid
confusion with FE990B.
Cc: stable@vger.kernel.org
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
The device id entries for Telit FN990B ended up matching only on the
interface protocol. While this works, the protocol is qualified by the
interface class (and subclass) which should have been included.
Switch to matching using USB_DEVICE_AND_INTERFACE_INFO() while keeping
the entries sorted also by protocol for consistency.
Link: https://lore.kernel.org/20250227110655.3647028-2-fabio.porcedda@gmail.com/
Cc: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Daniele Palmas <dnlplm@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
