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c3364cbc37
linux/drivers
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Dan Carpenter c3364cbc37 video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name() 
[ Upstream commit 78482af095 ]

This code has two bugs:
1) "cnt" is 255 but the size of the buffer is 256 so the last byte is
   not used.
2) If we try to print more than 255 characters then "cnt" will be
   negative and that will trigger a WARN() in snprintf(). The fix for
   this is to use scnprintf() instead of snprintf().

We can re-write this code to be cleaner:
1) Rename "offset" to "off" because that's shorter.
2) Get rid of the "cnt" variable and just use "size - off" directly.
3) Get rid of the "read" variable and just increment "off" directly.

Fixes: 96fe6a2109 ("fbdev: Add VESA Coordinated Video Timings (CVT) support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:15 +02:00
..
accessibility speakup-dectlk: Restore pitch setting 2022-02-16 12:56:37 +01:00
acpi ACPI: APEI: fix return value of __setup handlers 2022-04-08 14:23:09 +02:00
amba
android binder: avoid potential data leakage when copying txn 2022-01-27 11:04:09 +01:00
ata ata: pata_hpt37x: fix PCI clock detection 2022-03-08 19:12:33 +01:00
atm atm: eni: Add check for dma_map_single 2022-03-23 09:16:41 +01:00
auxdisplay auxdisplay: lcd2s: Use proper API to free the instance of charlcd object 2022-03-08 19:12:47 +01:00
base drivers/base/memory: add memory block to memory group after registration succeeded 2022-04-08 14:23:12 +02:00
bcma
block drbd: fix potential silent data corruption 2022-04-08 14:22:57 +02:00
bluetooth Bluetooth: btusb: Add one more Bluetooth part for the Realtek RTL8852AE 2022-03-28 09:58:45 +02:00
bus bus: mhi: Fix MHI DMA structure endianness 2022-04-08 14:22:49 +02:00
cdrom
char hwrng: nomadik - Change clk_disable to clk_disable_unprepare 2022-04-08 14:23:09 +02:00
clk clk: uniphier: Fix fixed-rate initialization 2022-04-08 14:22:50 +02:00
clocksource clocksource: acpi_pm: fix return value of __setup handler 2022-04-08 14:23:09 +02:00
comedi
connector
counter
cpufreq cpufreq: Fix initialization of min and max frequency QoS requests 2022-01-27 11:04:44 +01:00
cpuidle cpuidle: Fix kobject memory leaks in error paths 2021-11-18 19:16:29 +01:00
crypto crypto: ccree - Fix use after free in cc_cipher_exit() 2022-04-08 14:23:09 +02:00
cxl cxl/pmem: Fix reference counting for delayed work 2022-01-27 11:02:58 +01:00
dax
dca
devfreq
dio
dma dmaengine: shdma: Fix runtime PM imbalance on error 2022-03-08 19:12:31 +01:00
dma-buf dma-buf: cma_heap: Fix mutex locking section 2022-03-08 19:12:37 +01:00
edac EDAC: Fix calculation of returned address and next offset in edac_align_ptr() 2022-02-23 12:03:20 +01:00
eisa
extcon
firewire
firmware pstore: Don't use semaphores in always-atomic-context code 2022-04-08 14:23:01 +02:00
fpga
fsi
gnss
gpio Revert "gpio: Revert regression in sysfs-gpio (gpiolib.c)" 2022-04-08 14:22:47 +02:00
gpu drm/i915/gem: add missing boundary check in vm_access 2022-04-08 14:23:04 +02:00
greybus greybus: svc: fix an error handling bug in gb_svc_hello() 2022-04-08 14:22:50 +02:00
hid HID: intel-ish-hid: Use dma_alloc_coherent for firmware update 2022-04-08 14:22:51 +02:00
hsi HSI: core: Fix return freed object in hsi_new_client 2022-01-27 11:04:31 +01:00
hv hv: utils: add PTP_1588_CLOCK to Kconfig to fix build 2022-04-08 14:22:46 +02:00
hwmon hwmon: (pmbus) Add Vin unit off handling 2022-04-08 14:23:09 +02:00
hwspinlock
hwtracing coresight: syscfg: Fix memleak on registration failure in cscfg_create_device 2022-04-08 14:22:50 +02:00
i2c i2c: qup: allow COMPILE_TEST 2022-03-08 19:12:31 +01:00
i3c i3c: master: dw: check return of dw_i3c_master_get_free_pos() 2022-03-08 19:12:37 +01:00
idle
iio iio: inkern: make a best effort on offset calculation 2022-04-08 14:22:50 +02:00
infiniband IB/qib: Fix duplicate sysfs directory name 2022-03-02 11:48:08 +01:00
input Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads" 2022-04-08 14:22:55 +02:00
interconnect interconnect: qcom: rpm: Prevent integer overflow in rate 2022-01-27 11:05:00 +01:00
iommu iommu/iova: Improve 32-bit free space estimate 2022-04-08 14:22:48 +02:00
ipack
irqchip irqchip/sifive-plic: Add missing thead,c900-plic match string 2022-02-23 12:03:17 +01:00
isdn isdn: hfcpci: check the return value of dma_set_mask() in setup_hw() 2022-03-16 14:23:36 +01:00
leds leds: lp55xx: initialise output direction from dts 2022-01-27 11:04:21 +01:00
macintosh
mailbox mailbox: tegra-hsp: Flush whole channel 2022-04-08 14:22:59 +02:00
mcb
md bcache: fixup multiple threads crash 2022-04-08 14:23:01 +02:00
media media: aspeed: Correct value for h-total-pixels 2022-04-08 14:23:14 +02:00
memory memory: renesas-rpc-if: Return error in case devm_ioremap_resource() fails 2022-01-27 11:03:11 +01:00
memstick memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host() 2021-11-18 19:16:32 +01:00
message
mfd mfd: tps65910: Set PWR_OFF bit during driver probe 2022-01-27 11:05:07 +01:00
misc mei: avoid iterator usage outside of list_for_each_entry 2022-04-08 14:22:49 +02:00
mmc mmc: meson: Fix usage of meson_mmc_post_req() 2022-03-16 14:23:42 +01:00
most
mtd mtd: rawnand: protect access to rawnand devices while in suspend 2022-04-08 14:22:53 +02:00
mux
net brcmfmac: pcie: Fix crashes due to early IRQs 2022-04-08 14:23:04 +02:00
nfc nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION 2022-03-28 09:58:42 +02:00
ntb ntb: intel: fix port config status offset for SPR 2022-03-08 19:12:44 +01:00
nubus
nvdimm nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned 2021-11-18 19:17:07 +01:00
nvme nvme: fix the check for duplicate unique identifiers 2022-04-08 14:23:07 +02:00
nvmem nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property 2022-03-02 11:48:06 +01:00
of of: net: move of_net under net/ 2022-03-08 19:12:41 +01:00
opp opp: Fix return in _opp_add_static_v2() 2021-11-18 19:17:00 +01:00
parisc parisc: Fix sglist access in ccio-dma.c 2022-02-23 12:03:03 +01:00
parport
pci PCI: xgene: Revert "PCI: xgene: Fix IB window setup" 2022-04-08 14:23:04 +02:00
pcmcia pcmcia: fix setting of kthread task states 2022-01-27 11:04:02 +01:00
perf perf/arm-cmn: Fix CPU hotplug unregistration 2022-01-27 11:03:36 +01:00
phy phy: phy-mtk-tphy: Fix duplicated argument in phy-mtk-tphy 2022-02-23 12:03:17 +01:00
pinctrl pinctrl: samsung: Remove EINT handler for Exynos850 ALIVE and CMGP gpios 2022-04-08 14:23:12 +02:00
platform surface: surface3_power: Fix battery readings on batteries without a serial number 2022-03-02 11:47:59 +01:00
pnp
power power: reset: mt6397: Check for null res pointer 2022-01-27 11:03:49 +01:00
powercap
pps
ps3
ptp net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets 2022-01-27 11:03:52 +01:00
pwm
rapidio
ras
regulator regulator: qcom_smd: fix for_each_child.cocci warnings 2022-04-08 14:23:04 +02:00
remoteproc remoteproc: Fix count check in rproc_coredump_write() 2022-04-08 14:22:52 +02:00
reset reset: renesas: Fix Runtime PM usage 2022-01-11 15:35:16 +01:00
rpmsg rpmsg: char: Fix race between the release of rpmsg_eptdev and cdev 2022-02-01 17:27:07 +01:00
rtc rtc: pl031: fix rtc features null pointer dereference 2022-04-08 14:22:56 +02:00
s390 block: drop unused includes in <linux/genhd.h> 2022-03-16 14:23:46 +01:00
sbus
scsi scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands 2022-04-08 14:22:54 +02:00
sh maple: fix wrong return value of maple_bus_init(). 2021-11-25 09:48:31 +01:00
siox
slimbus
soc soc: fsl: qe: Check of ioremap return value 2022-03-08 19:12:49 +01:00
soundwire soundwire: bus: stop dereferencing invalid slave pointer 2021-11-18 19:16:54 +01:00
spi spi: spi-zynqmp-gqspi: Handle error for dma_set_mask 2022-04-08 14:23:07 +02:00
spmi
ssb
staging media: hantro: Fix overfill bottom register field name 2022-04-08 14:23:14 +02:00
target scsi: target: iscsi: Make sure the np under each tpg is unique 2022-02-16 12:56:12 +01:00
tc
tee optee: use driver internal tee_context for some rpc 2022-03-02 11:47:51 +01:00
thermal thermal: int340x: Check for NULL after calling kmemdup() 2022-04-08 14:23:05 +02:00
thunderbolt thunderbolt: Runtime PM activate both ends of the device link 2022-01-27 11:04:36 +01:00
tty serial: stm32: prevent TDR register overwrite when sending x_char 2022-03-08 19:12:32 +01:00
uio
usb xhci: fix uninitialized string returned by xhci_decode_ctrl_ctx() 2022-04-08 14:22:49 +02:00
vdpa vdpa/mlx5: should verify CTRL_VQ feature exists for MQ 2022-04-08 14:22:46 +02:00
vfio
vhost vsock: each transport cycles only on its own sockets 2022-03-23 09:16:41 +01:00
video video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name() 2022-04-08 14:23:15 +02:00
virt nitro_enclaves: Use get_user_pages_unlocked() call to handle mmap assert 2022-01-05 12:42:39 +01:00
virtio virtio: acknowledge all features before access 2022-03-16 14:23:43 +01:00
visorbus
vlynq
vme
w1 w1: Misuse of get_user()/put_user() reported by sparse 2022-01-27 11:04:59 +01:00
watchdog ar7: fix kernel builds for compiler test 2021-11-18 19:17:03 +01:00
xen xen/gnttab: fix gnttab_end_foreign_access() without page specified 2022-03-11 12:22:37 +01:00
zorro
Kconfig
Makefile virtio: always enter drivers/virtio/ 2021-12-22 09:32:39 +01:00