kernel/git/next/linux-next.git/drivers/usb/serial/kl5kusb105.c, branch master

Merge tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2026-06-22T19:09:47+00:00

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 ...

USB: serial: kl5kusb105: fix bulk-out buffer overflow

2026-06-08T11:43:10+00:00

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: 60b3013cdaf3 ("USB: kl5usb105: reimplement using generic framework") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4-8 Signed-off-by: HyeongJun An Signed-off-by: Johan Hovold

USB: serial: drop unused uaccess includes

2026-05-11T07:34:08+00:00

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 Signed-off-by: Johan Hovold

USB: serial: drop unused tty_driver includes

2026-05-11T07:33:40+00:00

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 Signed-off-by: Johan Hovold

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

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

move asm/unaligned.h to linux/unaligned.h

2024-10-02T21:23:23+00:00

asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h

USB: serial: drop driver owner initialization

2024-08-26T13:28:25+00:00

Core in usb_serial_register_drivers() already sets the .owner, so driver does not need to. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Johan Hovold

usb: serial: Make ->set_termios() old ktermios const

2022-08-30T12:22:35+00:00

There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko Signed-off-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20220816115739.10928-8-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman

USB: serial: kl5kusb105: drop line-status helper

2021-09-22T07:33:17+00:00

Drop the line-status conversion helper and do the conversion in place instead. Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold