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linux/drivers
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Anthony Mallet 8e22289c9f USB: cdc-acm: fix rounding error in TIOCSSERIAL 
[ Upstream commit b401f8c4f4 ]

By default, tty_port_init() initializes those parameters to a multiple
of HZ. For instance in line 69 of tty_port.c:
   port->close_delay = (50 * HZ) / 100;
https://github.com/torvalds/linux/blob/master/drivers/tty/tty_port.c#L69

With e.g. CONFIG_HZ = 250 (as this is the case for Ubuntu 18.04
linux-image-4.15.0-37-generic), the default setting for close_delay is
thus 125.

When ioctl(fd, TIOCGSERIAL, &s) is executed, the setting returned in
user space is '12' (125/10). When ioctl(fd, TIOCSSERIAL, &s) is then
executed with the same setting '12', the value is interpreted as '120'
which is different from the current setting and a EPERM error may be
raised by set_serial_info() if !CAP_SYS_ADMIN.
https://github.com/torvalds/linux/blob/master/drivers/usb/class/cdc-acm.c#L919

Fixes: ba2d8ce9db ("cdc-acm: implement TIOCSSERIAL to avoid blocking close(2)")
Signed-off-by: Anthony Mallet <anthony.mallet@laas.fr>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200312133101.7096-2-anthony.mallet@laas.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-02 17:20:27 +02:00
..
accessibility
…
acpi
x86/mm: split vmalloc_sync_all()
2020-04-02 17:20:26 +02:00
amba
ARM: amba: Don't read past the end of sysfs "driver_override" buffer
2018-05-01 15:13:08 -07:00
android
ANDROID: binder: synchronize_rcu() when using POLLFREE.
2019-10-07 18:53:19 +02:00
ata
ata: ahci: Add shutdown to freeze hardware resources of ahci
2020-02-28 15:42:56 +01:00
atm
atm: eni: fix uninitialized variable warning
2020-02-05 13:05:41 +00:00
auxdisplay
auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
2018-02-13 12:35:55 +01:00
base
driver core: platform: fix u32 greater or equal to zero comparison
2020-02-28 15:42:37 +01:00
bcma
bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA
2020-01-29 10:24:31 +01:00
block
virtio-blk: fix hw_queue stopped on arbitrary error
2020-03-20 09:07:43 +01:00
bluetooth
Bluetooth: btusb: fix PM leak in error case of setup
2020-01-12 11:24:16 +01:00
bus
bus: arm-cci: remove unnecessary unreachable()
2018-12-05 19:42:41 +01:00
cdrom
cdrom: respect device capabilities during opening action
2020-01-04 13:41:02 +01:00
char
ipmi:ssif: Handle a possible NULL pointer reference
2020-03-11 07:53:02 +01:00
clk
clk: qcom: rcg2: Don't crash if our parent can't be found; return an error
2020-02-28 15:42:22 +01:00
clocksource
clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
2020-01-29 10:24:17 +01:00
connector
…
cpufreq
cpufreq: Register drivers only after CPU devices have been registered
2020-01-04 13:39:56 +01:00
cpuidle
cpuidle: Do not unset the driver if it is there already
2019-12-21 10:42:04 +01:00
crypto
crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill
2020-02-14 16:31:02 -05:00
dax
device-dax: implement ->split() to catch invalid munmap attempts
2018-02-28 10:18:33 +01:00
dca
…
devfreq
PM / devfreq: rk3399_dmc: Add COMPILE_TEST and HAVE_ARM_SMCCC dependency
2020-02-28 15:42:28 +01:00
dio
…
dma
dmaengine: coh901318: Fix a double lock bug in dma_tc_handle()
2020-03-11 07:53:13 +01:00
dma-buf
dma-buf: Fix memory leak in sync_file_merge()
2019-12-21 10:42:32 +01:00
edac
EDAC/ghes: Fix grain calculation
2020-01-04 13:39:51 +01:00
eisa
…
extcon
extcon: sm5502: Reset registers during initialization
2020-01-04 13:39:22 +01:00
firewire
net: add annotations on hh->hh_len lockless accesses
2020-01-12 11:24:19 +01:00
firmware
efi: Add a sanity check to efivar_store_raw()
2020-03-20 09:07:49 +01:00
fmc
…
fpga
…
gpio
gpio: gpio-grgpio: fix possible sleep-in-atomic-context bugs in grgpio_irq_map/unmap()
2020-02-28 15:42:18 +01:00
gpu
drm/exynos: dsi: fix workaround for the legacy clock name
2020-04-02 17:20:22 +02:00
hid
HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override
2020-03-20 09:07:57 +01:00
hsi
HSI: ssi_protocol: double free in ssip_pn_xmit()
2018-03-24 11:00:12 +01:00
hv
Drivers: hv: vmbus: Return -EINVAL for the sys files for unopened channels
2018-12-29 13:40:15 +01:00
hwmon
hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT()
2020-03-11 07:53:13 +01:00
hwspinlock
…
hwtracing
intel_th: Fix user-visible error codes
2020-04-02 17:20:25 +02:00
i2c
i2c: jz4780: silence log flood on txabrt
2020-03-11 07:53:06 +01:00
ide
ide: serverworks: potential overflow in svwks_set_pio_mode()
2020-02-28 15:42:36 +01:00
idle
x86/cpu: Sanitize FAM6_ATOM naming
2019-05-14 19:19:34 +02:00
iio
iio: magnetometer: ak8974: Fix negative raw values in sysfs
2020-04-02 17:20:24 +02:00
infiniband
RMDA/cm: Fix missing ib_cm_destroy_id() in ib_cm_insert_listen()
2020-03-11 07:53:13 +01:00
input
Input: edt-ft5x06 - work around first register access error
2020-02-28 15:42:31 +01:00
iommu
iommu/vt-d: Ignore devices with out-of-spec domain number
2020-03-20 09:07:48 +01:00
ipack
…
irqchip
irqchip/gic-v3-its: Reference to its_invall_cmd descriptor when building INVALL
2020-02-28 15:42:42 +01:00
isdn
staging: gigaset: add endpoint-type sanity check
2019-12-21 10:41:50 +01:00
leds
leds: leds-lp5562 allow firmware files up to the maximum length
2019-10-05 12:30:17 +02:00
lguest
…
lightnvm
…
macintosh
macintosh/windfarm_smu_sat: Fix debug output
2019-11-28 18:28:30 +01:00
mailbox
mailbox: handle failed named mailbox channel request
2019-08-04 09:33:41 +02:00
mcb
MCB: add support for SC31 to mcb-lpc
2017-09-09 17:39:41 +02:00
md
dm cache: fix a crash due to incorrect work item cancelling
2020-03-11 07:53:14 +01:00
media
media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run()
2020-02-28 15:42:18 +01:00
memory
memory: tegra: Fix integer overflow on tick value calculation
2019-05-25 18:26:49 +02:00
memstick
memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
2019-10-29 09:15:25 +01:00
message
scsi: mptfusion: Fix double fetch bug in ioctl
2020-01-23 08:19:39 +01:00
mfd
mfd: rn5t618: Mark ADC control register volatile
2020-02-14 16:31:06 -05:00
misc
altera-stapl: altera_get_note: prevent write beyond end of 'key'
2020-04-02 17:20:22 +02:00
mmc
mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2
2020-04-02 17:20:25 +02:00
mtd
ubi: Fix an error pointer dereference in error handling code
2020-02-14 16:31:06 -05:00
net
net: ks8851-ml: Fix IRQ handling and locking
2020-03-20 09:07:57 +01:00
nfc
nfc: pn544: Fix occasional HW initialization failure
2020-03-11 07:53:05 +01:00
ntb
ntb: intel: fix return value for ndev_vec_mask()
2019-11-28 18:28:52 +01:00
nubus
…
nvdimm
libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields
2019-08-04 09:33:29 +02:00
nvme
nvme: retain split access workaround for capability reads
2020-01-29 10:24:33 +01:00
nvmem
nvmem: core: return error code instead of NULL from nvmem_device_get
2019-11-25 09:52:16 +01:00
of
of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc
2020-02-14 16:31:01 -05:00
oprofile
…
parisc
parisc: Disable HP HSC-PCI Cards to prevent kernel crash
2019-10-05 12:30:31 +02:00
parport
parport: load lowlevel driver if ports not found
2020-01-04 13:39:55 +01:00
pci
PCI/IOV: Fix memory leak in pci_iov_add_virtfn()
2020-02-28 15:42:23 +01:00
pcmcia
pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
2018-11-13 11:16:46 -08:00
perf
drivers/perf: arm_pmu: Fix failure path in PM notifier
2019-08-06 18:29:41 +02:00
phy
phy: phy-twl4030-usb: fix denied runtime access
2019-11-25 09:52:50 +01:00
pinctrl
pinctrl: sh-pfc: sh7269: Fix CAN function GPIOs
2020-02-28 15:42:28 +01:00
platform
MIPS: Loongson: Fix return value of loongson_hwmon_init
2020-01-29 10:24:35 +01:00
pnp
…
power
power: supply: ltc2941-battery-gauge: fix use-after-free
2020-02-14 16:31:01 -05:00
powercap
x86/cpu: Sanitize FAM6_ATOM naming
2019-05-14 19:19:34 +02:00
pps
drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
2019-08-04 09:33:45 +02:00
ps3
…
ptp
ptp: check gettime64 return code in PTP_SYS_OFFSET ioctl
2019-02-12 19:44:52 +01:00
pwm
pwm: omap-dmtimer: Remove PWM chip in .remove before making it unfunctional
2020-02-28 15:42:35 +01:00
rapidio
drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen()
2020-01-29 10:24:18 +01:00
ras
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regulator
regulator: rk808: Lower log level on optional GPIOs being not available
2020-02-28 15:42:23 +01:00
remoteproc
remoteproc: Initialize rproc_class before use
2020-02-28 15:42:36 +01:00
reset
reset: Fix potential use-after-free in __of_reset_control_get()
2019-11-25 09:53:42 +01:00
rpmsg
rpmsg: smd: fix memory leak on channel create
2018-11-13 11:17:03 -08:00
rtc
rtc: max8907: add missing select REGMAP_IRQ
2020-04-02 17:20:26 +02:00
s390
s390/cio: cio_ignore_proc_seq_next should increase position index
2020-03-11 07:53:10 +01:00
sbus
drivers/sbus/char: add of_node_put()
2018-12-21 14:11:36 +01:00
scsi
scsi: iscsi: Don't destroy session if there are outstanding connections
2020-02-28 15:42:34 +01:00
sfi
…
sh
…
sn
…
soc
soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
2020-02-28 15:42:30 +01:00
spi
spi/zynqmp: remove entry that causes a cs glitch
2020-04-02 17:20:21 +02:00
spmi
spmi: Include OF based modalias in device uevent
2017-07-27 15:08:08 -07:00
ssb
ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit
2019-05-31 06:48:12 -07:00
staging
staging/speakup: fix get_word non-space look-ahead
2020-04-02 17:20:25 +02:00
target
scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session"
2020-02-28 15:42:54 +01:00
tc
TC: Set DMA masks for devices
2018-11-13 11:17:02 -08:00
thermal
thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
2020-01-29 10:24:24 +01:00
thunderbolt
thunderbolt: Use 32-bit writes when writing ring producer/consumer
2019-11-06 12:18:14 +01:00
tty
vt: selection, push sel_lock up
2020-03-11 07:53:12 +01:00
uio
uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()
2020-02-28 15:42:20 +01:00
usb
USB: cdc-acm: fix rounding error in TIOCSSERIAL
2020-04-02 17:20:27 +02:00
uwb
uwb: hwa-rc: fix memory leak at probe
2018-10-03 17:01:42 -07:00
vfio
vfio_pci: Enable memory accesses before calling pci_map_rom
2020-01-29 10:24:16 +01:00
vhost
vhost: Check docket sk_family instead of call getname
2020-03-11 07:53:08 +01:00
video
vgacon: Fix a UAF in vgacon_invert_region
2020-03-11 07:53:11 +01:00
virt
drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl
2019-05-16 19:43:47 +02:00
virtio
virtio-balloon: fix managed page counts when migrating pages between zones
2019-12-21 10:41:57 +01:00
vlynq
…
vme
vme: bridges: reduce stack usage
2020-02-28 15:42:33 +01:00
w1
w1: fix the resume command API
2019-05-31 06:48:15 -07:00
watchdog
watchdog: da9062: do not ping the hw during stop()
2020-03-11 07:53:10 +01:00
xen
xen: Enable interrupts when calling _cond_resched()
2020-02-28 15:42:57 +01:00
zorro
zorro: Set up z->dev.dma_mask for the DMA API
2018-05-30 07:50:44 +02:00
Kconfig
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Makefile
usb: build drivers/usb/common/ when USB_SUPPORT is set
2018-02-25 11:05:45 +01:00