Mark Rutland e624efe36e lkdtm: don't move ctors to .rodata ... commit 3f618ab332 upstream. When building with KASAN and LKDTM, clang may implictly generate an asan.module_ctor function in the LKDTM rodata object. The Makefile moves the lkdtm_rodata_do_nothing() function into .rodata by renaming the file's .text section to .rodata, and consequently also moves the ctor function into .rodata, leading to a boot time crash (splat below) when the ctor is invoked by do_ctors(). Let's prevent this by marking the function as noinstr rather than notrace, and renaming the file's .noinstr.text to .rodata. Marking the function as noinstr will prevent tracing and kprobes, and will inhibit any undesireable compiler instrumentation. The ctor function (if any) will be placed in .text and will work correctly. Example splat before this patch is applied: [ 0.916359] Unable to handle kernel execute from non-executable memory at virtual address ffffa0006b60f5ac [ 0.922088] Mem abort info: [ 0.922828] ESR = 0x8600000e [ 0.923635] EC = 0x21: IABT (current EL), IL = 32 bits [ 0.925036] SET = 0, FnV = 0 [ 0.925838] EA = 0, S1PTW = 0 [ 0.926714] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000427b3000 [ 0.928489] [ffffa0006b60f5ac] pgd=000000023ffff003, p4d=000000023ffff003, pud=000000023fffe003, pmd=0068000042000f01 [ 0.931330] Internal error: Oops: 8600000e [#1] PREEMPT SMP [ 0.932806] Modules linked in: [ 0.933617] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc7 #2 [ 0.935620] Hardware name: linux,dummy-virt (DT) [ 0.936924] pstate: 40400005 (nZcv daif +PAN -UAO -TCO BTYPE=--) [ 0.938609] pc : asan.module_ctor+0x0/0x14 [ 0.939759] lr : do_basic_setup+0x4c/0x70 [ 0.940889] sp : ffff27b600177e30 [ 0.941815] x29: ffff27b600177e30 x28: 0000000000000000 [ 0.943306] x27: 0000000000000000 x26: 0000000000000000 [ 0.944803] x25: 0000000000000000 x24: 0000000000000000 [ 0.946289] x23: 0000000000000001 x22: 0000000000000000 [ 0.947777] x21: ffffa0006bf4a890 x20: ffffa0006befb6c0 [ 0.949271] x19: ffffa0006bef9358 x18: 0000000000000068 [ 0.950756] x17: fffffffffffffff8 x16: 0000000000000000 [ 0.952246] x15: 0000000000000000 x14: 0000000000000000 [ 0.953734] x13: 00000000838a16d5 x12: 0000000000000001 [ 0.955223] x11: ffff94000da74041 x10: dfffa00000000000 [ 0.956715] x9 : 0000000000000000 x8 : ffffa0006b60f5ac [ 0.958199] x7 : f9f9f9f9f9f9f9f9 x6 : 000000000000003f [ 0.959683] x5 : 0000000000000040 x4 : 0000000000000000 [ 0.961178] x3 : ffffa0006bdc15a0 x2 : 0000000000000005 [ 0.962662] x1 : 00000000000000f9 x0 : ffffa0006bef9350 [ 0.964155] Call trace: [ 0.964844] asan.module_ctor+0x0/0x14 [ 0.965895] kernel_init_freeable+0x158/0x198 [ 0.967115] kernel_init+0x14/0x19c [ 0.968104] ret_from_fork+0x10/0x30 [ 0.969110] Code: 00000003 00000000 00000000 00000000 (00000000) [ 0.970815] ---[ end trace b5339784e20d015c ]--- Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kees Cook <keescook@chromium.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20201207170533.10738-1-mark.rutland@arm.com Cc: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-02-17 11:02:24 +01:00
..
accessibility	speakup: fix uninitialized flush_lock	2020-12-30 11:53:44 +01:00
acpi	ACPI/IORT: Do not blindly trust DMA masks from firmware	2021-02-03 23:28:50 +01:00
amba
android	binder: add flag to clear buffer on txn complete	2020-12-30 11:54:09 +01:00
ata
atm	atm: idt77252: call pci_disable_device() on error path	2021-01-12 20:18:09 +01:00
auxdisplay
base	driver core: Extend device_is_dependent()	2021-01-27 11:55:18 +01:00
bcma
block	xen-blkfront: allow discard-* nodes to be optional	2021-02-03 23:28:44 +01:00
bluetooth	Bluetooth: revert: hci_h5: close serdev device and free hu in h5_close	2021-01-12 20:18:16 +01:00
bus	bus: fsl-mc: fix error return code in fsl_mc_object_allocate()	2020-12-30 11:53:46 +01:00
cdrom
char	um: random: Register random as hwrng-core device	2021-01-06 14:56:55 +01:00
clk	clk: qcom: gcc-sm250: Use floor ops for sdcc clks	2021-02-03 23:28:44 +01:00
clocksource	clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI	2020-12-30 11:53:37 +01:00
connector
counter	counter:ti-eqep: remove floor	2021-01-27 11:55:12 +01:00
cpufreq	cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get()	2021-01-17 14:17:00 +01:00
cpuidle	cpuidle: tegra: Annotate tegra_pm_set_cpu_in_lp2() with RCU_NONIDLE	2020-11-16 13:24:32 +01:00
crypto	crypto: marvel/cesa - Fix tdma descriptor on 64-bit	2021-02-03 23:28:40 +01:00
dax	device-dax: Fix range release	2021-01-06 14:56:56 +01:00
dca
devfreq
dio
dma	dmaengine: move channel device_node deletion to driver	2021-02-17 11:02:21 +01:00
dma-buf	dmabuf: fix use-after-free of dmabuf's file->f_inode	2021-01-12 20:18:24 +01:00
edac	EDAC/amd64: Fix PCI component registration	2020-12-30 11:54:11 +01:00
eisa
extcon	extcon: max77693: Fix modalias string	2020-12-30 11:53:49 +01:00
firewire
firmware	firmware: imx: select SOC_BUS to fix firmware build	2021-02-03 23:28:46 +01:00
fpga	fpga: Specify HAS_IOMEM dependency for FPGA_DFL	2020-12-01 18:46:24 +01:00
fsi	fsi: Aspeed: Add mutex to protect HW access	2020-12-30 11:53:46 +01:00
gnss
gpio	gpio: ep93xx: Fix single irqchip with multi gpiochips	2021-02-17 11:02:20 +01:00
gpu	drm/amd/display: Decrement refcount of dc_sink before reassignment	2021-02-17 11:02:23 +01:00
greybus
hid	HID: multitouch: Apply MT_QUIRK_CONFIDENCE quirk for multi-input devices	2021-01-30 13:55:17 +01:00
hsi	HSI: omap_ssi: Don't jump to free ID in ssi_add_controller()	2020-12-30 11:53:24 +01:00
hv	x86/hyperv: Fix kexec panic/hang issues	2021-01-27 11:54:57 +01:00
hwmon	hwmon: (pwm-fan) Ensure that calculation doesn't discard big period values	2021-01-19 18:27:25 +01:00
hwspinlock
hwtracing	stm class: Fix module init return on allocation failure	2021-01-27 11:55:15 +01:00
i2c	i2c: mediatek: Move suspend and resume handling to NOIRQ phase	2021-02-13 13:55:13 +01:00
i3c	i3c master: fix missing destroy_workqueue() on error in i3c_master_register	2021-01-06 14:56:53 +01:00
ide	scsi: ide: Mark power management requests with RQF_PM instead of RQF_PREEMPT	2021-01-12 20:18:15 +01:00
idle	intel_idle: Build fix	2020-12-03 10:00:23 +01:00
iio	iio: adc: ti_am335x_adc: remove omitted iio_kfifo_free()	2021-01-27 11:55:12 +01:00
infiniband	RDMA/cxgb4: Fix the reported max_recv_sge value	2021-02-03 23:28:46 +01:00
input	Input: ili210x - implement pressure reporting for ILI251x	2021-02-10 09:29:22 +01:00
interconnect	interconnect: imx8mq: Use icc_sync_state	2021-01-27 11:55:29 +01:00
iommu	iommu/vt-d: Do not use flush-queue when caching-mode is on	2021-02-07 15:37:13 +01:00
ipack
irqchip	irqchip/mips-cpu: Set IPI domain parent chip	2021-01-27 11:55:13 +01:00
isdn	misdn: dsp: select CONFIG_BITREVERSE	2021-01-19 18:27:26 +01:00
leds	leds: trigger: fix potential deadlock with libata	2021-02-03 23:28:41 +01:00
lightnvm	lightnvm: fix memory leak when submit fails	2021-01-27 11:55:22 +01:00
macintosh	macintosh/adb-iop: Send correct poll command	2020-12-30 11:53:39 +01:00
mailbox	mailbox: arm_mhu_db: Fix mhu_db_shutdown by replacing kfree with devm_kfree	2020-12-30 11:53:28 +01:00
mcb
md	md: Set prev_flush_start and flush_bio in an atomic way	2021-02-10 09:29:22 +01:00
media	media: rc: ensure that uevent can be read directly after rc device register	2021-02-03 23:28:38 +01:00
memory	memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm	2020-12-30 11:54:27 +01:00
memstick	memstick: r592: Fix error return in r592_probe()	2020-12-30 11:53:34 +01:00
message
mfd	mfd: cpcap: Fix interrupt regression with regmap clear_ack	2020-12-30 11:53:16 +01:00
misc	lkdtm: don't move ctors to .rodata	2021-02-17 11:02:24 +01:00
mmc	mmc: core: Limit retries when analyse of SDIO tuples fails	2021-02-10 09:29:18 +01:00
most
mtd	mtd: rawnand: nandsim: Fix the logic when selecting Hamming soft ECC engine	2021-01-27 11:54:50 +01:00
mux
net	iwlwifi: queue: bail out on invalid freeing	2021-02-13 13:55:11 +01:00
nfc	nfc: s3fwrn5: Release the nfc firmware	2020-12-30 11:53:53 +01:00
ntb
nubus
nvdimm	libnvdimm/dimm: Avoid race between probe and available_slots_show()	2021-02-10 09:29:17 +01:00
nvme	nvme-pci: ignore the subsysem NQN on Phison E16	2021-02-17 11:02:23 +01:00
nvmem
of	of/device: Update dma_range_map only when dev has valid dma-ranges	2021-02-03 23:28:50 +01:00
opp	opp: Call the missing clk_put() on error	2021-01-06 14:56:49 +01:00
oprofile
parisc
parport
pci	PCI: Fix pci_slot_release() NULL pointer dereference	2020-12-30 11:54:28 +01:00
pcmcia
perf
phy	phy: cpcap-usb: Fix warning for missing regulator_disable	2021-02-07 15:37:13 +01:00
pinctrl	pinctrl: qcom: Don't clear pending interrupts when enabling	2021-01-27 11:55:27 +01:00
platform	platform/x86: hp-wmi: Disable tablet-mode reporting by default	2021-02-17 11:02:22 +01:00
pnp
power	power: supply: bq24190_charger: fix reference leak	2020-12-30 11:53:25 +01:00
powercap
pps
ps3	powerpc/ps3: use dma_mapping_error()	2020-12-30 11:53:53 +01:00
ptp	phy: dp83640: select CONFIG_CRC32	2021-01-17 14:17:02 +01:00
pwm	pwm: sun4i: Remove erroneous else branch	2020-12-30 11:53:59 +01:00
rapidio
ras
regulator	regulator: Fix lockdep warning resolving supplies	2021-02-13 13:55:14 +01:00
remoteproc	remoteproc: sysmon: Ensure remote notification ordering	2020-12-30 11:54:28 +01:00
reset
rpmsg
rtc	rtc: pcf2127: only use watchdog when explicitly available	2021-01-09 13:46:22 +01:00
s390	s390/vfio-ap: No need to disable IRQ after queue reset	2021-02-03 23:28:39 +01:00
sbus
scsi	scsi: lpfc: Fix EEH encountering oops with NVMe traffic	2021-02-17 11:02:22 +01:00
sfi
sh
siox
slimbus	slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()	2020-12-30 11:53:47 +01:00
soc	soc: ti: omap-prm: Fix boot time errors for rst_map_012 bits 0 and 1	2021-02-17 11:02:22 +01:00
soundwire	soundwire: master: use pm_runtime_set_active() on add	2020-12-30 11:53:28 +01:00
spi	spi: altera: Fix memory leak on error path	2021-02-03 23:28:46 +01:00
spmi
ssb
staging	media: hantro: Fix reset_raw_fmt initialization	2021-02-03 23:28:37 +01:00
target	scsi: target: tcmu: Fix use-after-free of se_cmd->priv	2021-01-27 11:54:50 +01:00
tc
tee	tee: optee: replace might_sleep with cond_resched	2021-02-03 23:28:43 +01:00
thermal	thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed	2020-12-30 11:54:29 +01:00
thunderbolt	thunderbolt: Fix possible NULL pointer dereference in tb_acpi_add_link()	2021-02-10 09:29:15 +01:00
tty	tty: avoid using vfs_iocb_iter_write() for redirected console writes	2021-02-03 23:28:36 +01:00
uio
usb	xhci: fix bounce buffer usage for non-sg list case	2021-02-10 09:29:17 +01:00
vdpa	vdpa/mlx5: Restore the hardware used index after change map	2021-02-10 09:29:15 +01:00
vfio	vfio/pci/nvlink2: Do not attempt NPU2 setup on POWER8NVL NPU	2020-12-30 11:54:03 +01:00
vhost	vhost_net: fix ubuf refcount incorrectly when sendmsg fails	2021-01-12 20:18:13 +01:00
video	fbcon: Disable accelerated scrolling	2021-01-06 14:56:51 +01:00
virt
virtio	virtio_ring: Fix two use after free bugs	2020-12-30 11:54:00 +01:00
visorbus
vlynq
vme
w1
watchdog	watchdog: rti-wdt: fix reference leak in rti_wdt_probe	2021-01-06 14:56:54 +01:00
xen	arm/xen: Don't probe xenbus as part of an early initcall	2021-02-17 11:02:21 +01:00
zorro
Kconfig
Makefile	vdpa: mlx5: fix vdpa/vhost dependencies	2020-12-02 04:09:56 -05:00