Rand Deeb c37aca3dd5 bcache: prevent potential division by zero error ... commit 2c7f497ac274a14330208b18f6f734000868ebf9 upstream. In SHOW(), the variable 'n' is of type 'size_t.' While there is a conditional check to verify that 'n' is not equal to zero before executing the 'do_div' macro, concerns arise regarding potential division by zero error in 64-bit environments. The concern arises when 'n' is 64 bits in size, greater than zero, and the lower 32 bits of it are zeros. In such cases, the conditional check passes because 'n' is non-zero, but the 'do_div' macro casts 'n' to 'uint32_t,' effectively truncating it to its lower 32 bits. Consequently, the 'n' value becomes zero. To fix this potential division by zero error and ensure precise division handling, this commit replaces the 'do_div' macro with div64_u64(). div64_u64() is designed to work with 64-bit operands, guaranteeing that division is performed correctly. This change enhances the robustness of the code, ensuring that division operations yield accurate results in all scenarios, eliminating the possibility of division by zero, and improving compatibility across different 64-bit environments. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Rand Deeb <rand.sec96@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20231120052503.6122-5-colyli@suse.de Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-12-03 07:32:12 +01:00
..
accessibility
acpi	ACPI: resource: Skip IRQ override on ASUS ExpertBook B1402CVA	2023-12-03 07:32:11 +01:00
amba	amba: bus: fix refcount leak	2023-09-13 09:42:56 +02:00
android	binder: fix memory leak in binder_init()	2023-08-16 18:27:24 +02:00
ata	ata: pata_isapnp: Add missing error check for devm_ioport_map()	2023-12-03 07:32:07 +01:00
atm	atm: iphase: Do PCI error checks on own line	2023-11-28 17:07:00 +00:00
auxdisplay
base	driver core: Release all resources during unbind before updating device links	2023-11-28 17:07:13 +00:00
bcma
block	virtio-blk: fix implicit overflow on virtio_max_dma_size	2023-11-28 17:07:02 +00:00
bluetooth	Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE	2023-11-28 17:07:17 +00:00
bus	bus: ti-sysc: Fix SYSC_QUIRK_SWSUP_SIDLE_ACT handling for uart wake-up	2023-10-06 14:56:48 +02:00
cdrom
char	hwrng: geode - fix accessing registers	2023-11-20 11:52:04 +01:00
clk	clk: visconti: Fix undefined behavior bug in struct visconti_pll_provider	2023-11-28 17:07:16 +00:00
clocksource	clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware	2023-11-28 17:06:55 +00:00
comedi
connector
counter	counter: microchip-tcb-capture: Fix the use of internal GCLK logic	2023-10-19 23:08:58 +02:00
cpufreq	cpufreq: stats: Fix buffer overflow detection in trans_stats()	2023-11-28 17:07:16 +00:00
cpuidle	powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT	2023-09-13 09:42:48 +02:00
crypto	crypto: hisilicon/qm - prevent soft lockup in receive loop	2023-11-28 17:07:00 +00:00
cxl	cxl/port: Fix NULL pointer access in devm_cxl_add_port()	2023-11-28 17:07:23 +00:00
dax	dax/kmem: Pass valid argument to memory_group_register_static	2023-07-19 16:21:43 +02:00
dca
devfreq	PM / devfreq: rockchip-dfi: Make pmu regmap mandatory	2023-11-20 11:51:54 +01:00
dio
dma	dmaengine: stm32-mdma: correct desc prep when channel running	2023-11-28 17:07:13 +00:00
dma-buf	dma-buf: add dma_fence_timestamp helper	2023-10-19 23:08:57 +02:00
edac	EDAC/igen6: Fix the issue of no error events	2023-09-13 09:42:45 +02:00
eisa
extcon	extcon: cht_wc: add POWER_SUPPLY dependency	2023-09-13 09:42:53 +02:00
firewire	scsi: sd: Introduce manage_shutdown device flag	2023-11-02 09:35:29 +01:00
firmware	firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit	2023-11-28 17:07:12 +00:00
fpga	fpga: bridge: fix kernel-doc parameter description	2023-05-11 23:03:27 +09:00
fsi	fsi: aspeed: Reset master errors after CFAM reset	2023-09-13 09:42:54 +02:00
gnss
gpio	gpio: vf610: mask the gpio irq in system suspend and support wakeup	2023-10-25 12:03:16 +02:00
gpu	drm/rockchip: vop: Fix color for RGB888/BGR888 format on VOP full	2023-12-03 07:32:07 +01:00
greybus
hid	HID: fix HID device resource race between HID core and debugging support	2023-12-03 07:32:07 +01:00
hsi
hte	hte: tegra: Fix missing error code in tegra_hte_test_probe()	2023-11-20 11:51:58 +01:00
hv	Drivers: hv: vmbus: Don't dereference ACPI root object handle	2023-09-13 09:42:59 +02:00
hwmon	hwmon: (sch5627) Disallow write access if virtual registers are locked	2023-11-20 11:51:58 +01:00
hwspinlock	hwspinlock: qcom: add missing regmap config for SFPB MMIO implementation	2023-09-19 12:28:05 +02:00
hwtracing	coresight: tmc-etr: Disable warnings for allocation failures	2023-11-08 14:10:57 +01:00
i2c	i2c: i801: fix potential race in i801_block_transaction_byte_by_byte	2023-11-28 17:07:18 +00:00
i3c	i3c: master: svc: fix random hot join failure since timeout error	2023-11-28 17:07:17 +00:00
idle	intel_idle: add Emerald Rapids Xeon support	2023-10-10 22:00:44 +02:00
iio	iio: adc: stm32-adc: harden against NULL pointer deref in stm32_adc_probe()	2023-11-28 17:07:01 +00:00
infiniband	RDMA/hfi1: Use FIELD_GET() to extract Link Width	2023-11-28 17:06:59 +00:00
input	Input: xpad - add VID for Turtle Beach controllers	2023-11-28 17:07:23 +00:00
interconnect	interconnect: qcom: sm8350: Set ACV enable_mask	2023-11-20 11:52:12 +01:00
iommu	iommu/mediatek: Fix share pgtable for iova over 4GB	2023-10-10 22:00:41 +02:00
ipack
irqchip	irqchip/stm32-exti: add missing DT IRQ flag translation	2023-11-08 14:10:57 +01:00
isdn	mISDN: Update parameter type of dsp_cmx_send()	2023-08-16 18:27:26 +02:00
leds	leds: trigger: ledtrig-cpu:: Fix 'output may be truncated' issue for 'cpu'	2023-11-20 11:52:08 +01:00
macintosh	macintosh: via-pmu-led: requires ATA to be set	2023-05-11 23:03:31 +09:00
mailbox	mailbox: qcom-ipcc: fix incorrect num_chans counting	2023-09-19 12:27:58 +02:00
mcb	mcb: fix error handling for different scenarios when parsing	2023-11-28 17:07:13 +00:00
md	bcache: prevent potential division by zero error	2023-12-03 07:32:12 +01:00
media	media: qcom: camss: Fix genpd cleanup	2023-12-03 07:32:10 +01:00
memory	memory: brcmstb_dpfe: fix testing array offset after use	2023-07-19 16:21:24 +02:00
memstick	memstick r592: make memstick_debug_get_tpc_name() static	2023-07-19 16:21:08 +02:00
message	scsi: message: mptlan: Fix use after free bug in mptlan_remove() due to race condition	2023-05-24 17:32:37 +01:00
mfd	mfd: qcom-spmi-pmic: Fix revid implementation	2023-11-28 17:07:12 +00:00
misc	misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller	2023-11-28 17:07:00 +00:00
mmc	mmc: sdhci-pci-gli: GL9755: Mask the replay timer timeout of AER	2023-11-28 17:07:23 +00:00
most
mtd	mtd: cfi_cmdset_0001: Byte swap OTP info	2023-11-28 17:07:14 +00:00
mux
net	hv_netvsc: Mark VF as slave before exposing it to user-mode	2023-12-03 07:32:11 +01:00
nfc	nfcsim.c: Fix error checking for debugfs_create_dir	2023-06-28 11:12:36 +02:00
ntb	ntb: Fix calculation ntb_transport_tx_free_entry()	2023-09-13 09:43:02 +02:00
nubus	nubus: Partially revert proc_create_single_data() conversion	2023-07-05 18:27:37 +01:00
nvdimm	nd_btt: Make BTT lanes preemptible	2023-11-20 11:52:05 +01:00
nvme	nvmet: nul-terminate the NQNs passed in the connect command	2023-12-03 07:32:09 +01:00
nvmem	nvmem: imx: correct nregs for i.MX6UL	2023-11-02 09:35:31 +01:00
of	of: dynamic: Fix potential memory leak in of_changeset_action()	2023-10-10 22:00:44 +02:00
opp	OPP: Fix passing 0 to PTR_ERR in _opp_attach_genpd()	2023-09-13 09:42:28 +02:00
parisc	parisc/power: Fix power soft-off when running on qemu	2023-11-28 17:07:14 +00:00
parport
pci	PCI: exynos: Don't discard .remove() callback	2023-11-28 17:07:11 +00:00
pcmcia	pcmcia: ds: fix possible name leak in error path in pcmcia_device_add()	2023-11-20 11:52:13 +01:00
peci
perf	perf: hisi: Fix use-after-free when register pmu fails	2023-11-20 11:52:01 +01:00
phy	phy: mapphone-mdm6600: Fix pinctrl_pm handling for sleep pins	2023-10-25 12:03:16 +02:00
pinctrl	pinctrl: renesas: rzg2l: Make reverse order of enable() for disable()	2023-11-20 11:52:10 +01:00
platform	platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e	2023-11-28 17:06:56 +00:00
pnp
power	power: supply: core: Use blocking_notifier_call_chain to avoid RCU complaint	2023-11-08 14:11:02 +01:00
powercap	powercap: RAPL: Fix CONFIG_IOSF_MBI dependency	2023-07-19 16:21:00 +02:00
pps
ps3
ptp	ptp: annotate data-race around q->head and q->tail	2023-11-28 17:07:05 +00:00
pwm	pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume	2023-11-20 11:52:15 +01:00
rapidio
ras
regulator	regulator: mt6358: Fail probe on unknown chip ID	2023-11-20 11:51:56 +01:00
remoteproc	remoteproc: imx_dsp_rproc: Fix kernel test robot sparse warning	2023-05-24 17:32:53 +01:00
reset
rpmsg	rpmsg: glink: Add check for kstrdup	2023-09-13 09:42:58 +02:00
rtc	rtc: pcf85363: fix wrong mask/val parameters in regmap_update_bits call	2023-11-20 11:52:13 +01:00
s390	s390/dasd: protect device queue against concurrent access	2023-12-03 07:32:11 +01:00
sbus
scsi	scsi: qla2xxx: Fix system crash due to bad pointer access	2023-11-28 17:07:07 +00:00
sh
siox
slimbus
soc	pmdomain: imx: Make imx pgc power domain also set the fwnode	2023-11-28 17:07:16 +00:00
soundwire	soundwire: dmi-quirks: update HP Omen match	2023-11-28 17:07:01 +00:00
spi	spi: spi-zynq-qspi: add spi-mem to driver kconfig dependencies	2023-11-20 11:52:18 +01:00
spmi	spmi: Add a check for remove callback when removing a SPMI driver	2023-05-11 23:03:31 +09:00
ssb
staging	media: cedrus: Fix clock/reset sequence	2023-11-20 11:52:14 +01:00
target	scsi: target: core: Fix deadlock due to recursive locking	2023-10-10 22:00:41 +02:00
tc
tee	tee: amdtee: fix use-after-free vulnerability in amdtee_close_session	2023-10-19 23:08:57 +02:00
thermal	thermal: core: prevent potential string overflow	2023-11-20 11:51:54 +01:00
thunderbolt	thunderbolt: Apply USB 3.x bandwidth quirk only in software connection manager	2023-11-28 17:07:01 +00:00
tty	hvc/xen: fix event channel handling for secondary consoles	2023-11-28 17:07:08 +00:00
ufs	scsi: ufs: core: Leave space for '\0' in utf8 desc string	2023-11-20 11:52:07 +01:00
uio
usb	USB: serial: option: add Luat Air72*U series products	2023-12-03 07:32:11 +01:00
vdpa	vdpa: Enable strict validation for netlinks ops	2023-08-23 17:52:31 +02:00
vfio	vfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent()	2023-10-06 14:56:45 +02:00
vhost	vhost-vdpa: fix use after free in vhost_vdpa_probe()	2023-11-28 17:07:04 +00:00
video	fbdev: fsl-diu-fb: mark wr_reg_wa() static	2023-11-20 11:52:18 +01:00
virt	virt: sevguest: Fix passing a stack buffer as a scatterlist target	2023-11-20 11:52:13 +01:00
virtio	virtio_pci: fix the common cfg map size	2023-11-02 09:35:23 +01:00
vlynq
w1	w1: fix loop in w1_fini()	2023-07-19 16:21:48 +02:00
watchdog	sbsa_gwdt: Calculate timeout with 64-bit math	2023-11-28 17:07:18 +00:00
xen	swiotlb-xen: provide the "max_mapping_size" method	2023-12-03 07:32:11 +01:00
zorro
Kconfig
Makefile