Mark Rutland 3f618ab332 lkdtm: don't move ctors to .rodata ... 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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-12-09 15:51:14 +01:00
..
accessibility	speakup: fix uninitialized flush_lock	2020-12-09 15:38:13 +01:00
acpi	arm64 fixes for -rc6	2020-11-27 10:44:59 -08:00
amba
android	binder: add flag to clear buffer on txn complete	2020-12-09 15:41:21 +01:00
ata	libata-5.10-2020-10-30	2020-10-30 14:51:01 -07:00
atm	atm: nicstar: Unmap DMA on send error	2020-11-18 16:42:07 -08:00
auxdisplay
base	PM: runtime: Resume the device earlier in __device_release_driver()	2020-11-02 18:14:07 +01:00
bcma	bcma: use semicolons rather than commas to separate statements	2020-10-01 16:23:50 +03:00
block	loop: Fix occasional uevent drop	2020-11-12 13:59:04 -07:00
bluetooth	Bluetooth: btintel: Replace zero-length array with flexible-array member	2020-10-30 16:57:41 -05:00
bus	MHI patches for v5.11	2020-12-04 16:25:17 +01:00
cdrom
char	Merge 5.10-rc4 into char-misc-next	2020-11-16 09:18:46 +01:00
clk	clk: imx8m: fix bus critical clk registration	2020-11-04 17:13:12 -08:00
clocksource	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
connector
counter	counter/ti-eqep: Fix regmap max_register	2020-11-01 17:17:31 +00:00
cpufreq	Merge branch 'cpufreq/arm/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm	2020-11-23 12:55:01 +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: sun8x-ce*: update entries to its documentation	2020-10-28 11:41:15 -06:00
dax	mm: fix phys_to_target_node() and memory_add_physaddr_to_nid() exports	2020-11-22 10:48:22 -08:00
dca
devfreq	PM / devfreq: tegra30: Improve initial hardware resetting	2020-09-29 17:50:10 +09:00
dio
dma	dmaengine fixes for v5.10-rc5	2020-11-20 10:23:49 -08:00
dma-buf	dma-mapping updates for 5.10	2020-10-15 14:43:29 -07:00
edac	EFI changes for v5.10:	2020-10-12 13:26:49 -07:00
eisa
extcon	extcon: axp288: Use module_platform_driver to simplify the code	2020-09-30 00:40:06 +09:00
firewire
firmware	firmware: fix a spelling mistake "managament" -> "management" in Kconfig	2020-12-09 15:42:19 +01:00
fpga	Merge 5.10-rc7 into char-misc-next	2020-12-07 10:08:14 +01:00
fsi
gnss
gpio	gpio: sifive: Fix SiFive gpio probe	2020-11-11 09:53:09 +01:00
gpu	One bridge fix for OMAP, one for a race condition in a panel, two for	2020-12-04 11:53:50 +10:00
greybus
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2020-11-22 14:36:06 -08:00
hsi
hv	hyperv-fixes for 5.10-rc5	2020-11-16 15:02:33 -08:00
hwmon	hwmon: (amd_energy) modify the visibility of the counters	2020-11-13 06:46:20 -08:00
hwspinlock
hwtracing	coresight: etm4x: Modify core-commit to avoid HiSilicon ETM overflow	2020-12-08 19:57:19 +01:00
i2c	i2c: mlxbf: Fix the return check of devm_ioremap and ioremap	2020-12-05 14:52:35 +01:00
i3c	* Fix DAA for the pre-reserved address case	2020-10-17 11:01:01 -07:00
ide	block-5.10-2020-10-12	2020-10-13 12:12:44 -07:00
idle	intel_idle: Build fix	2020-12-03 10:00:23 +01:00
iio	iio: accel: kxcjk1013: Add support for KIOX010A ACPI DSM for setting tablet-mode	2020-11-14 17:33:47 +00:00
infiniband	RDMA/hns: Bugfix for memory window mtpt configuration	2020-11-26 10:57:32 -04:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-12-05 16:16:34 -08:00
interconnect	interconnect changes for 5.11	2020-12-04 14:11:20 +01:00
iommu	iommu fixes for -rc6	2020-11-27 10:41:19 -08:00
ipack	ipack: iopctal: remove unneeded break	2020-11-09 16:05:34 +01:00
irqchip	irqchip fixes for Linux 5.10, take #2	2020-11-25 00:56:28 +01:00
isdn
leds	leds: pwm: Remove platform_data support	2020-10-07 12:02:58 +02:00
lightnvm	lightnvm: fix out-of-bounds write to array devices->info[]	2020-10-16 09:28:45 -06:00
macintosh	powerpc updates for 5.10	2020-10-16 12:21:15 -07:00
mailbox	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
mcb
md	dm: remove invalid sparse __acquires and __releases annotations	2020-12-04 15:25:18 -05:00
media	media: vidtv.rst: add kernel-doc markups	2020-11-26 08:05:24 +01:00
memory	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
memstick	Merge branch 'fixes' into next	2020-09-28 12:17:36 +02:00
message	scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()	2020-10-26 16:57:18 -04:00
mfd	- New Drivers	2020-10-14 15:56:58 -07:00
misc	lkdtm: don't move ctors to .rodata	2020-12-09 15:51:14 +01:00
mmc	mmc: sdhci-of-arasan: Issue DLL reset explicitly	2020-11-17 12:44:44 +01:00
most
mtd	mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()	2020-11-20 12:31:26 +01:00
mux
net	Merge 5.10-rc7 into char-misc-next	2020-12-07 10:08:14 +01:00
nfc	nfc: s3fwrn5: use signed integer for parsing GPIO numbers	2020-11-24 15:00:53 -08:00
ntb	Bug fixes for v5.10	2020-10-25 11:12:31 -07:00
nubus
nvdimm	mm/memremap_pages: support multiple ranges per invocation	2020-10-13 18:38:28 -07:00
nvme	nvme: fix memory leak freeing command effects	2020-11-14 09:57:55 +01:00
nvmem	nvmem: imx-ocotp: add support for the unaliged word count	2020-11-27 16:10:07 +01:00
of	of/address: Fix of_node memory leak in of_dma_is_coherent	2020-11-11 17:10:16 -06:00
opp	opp: Reduce the size of critical section in _opp_table_kref_release()	2020-10-27 13:21:03 +05:30
oprofile
parisc	dma-mapping: split <linux/dma-mapping.h>	2020-10-06 07:07:03 +02:00
parport
pci	PCI: mvebu: Fix duplicate resource requests	2020-11-04 13:55:30 -06:00
pcmcia
perf	perf: arm-cmn: Fix conversion specifiers for node type	2020-10-01 22:30:07 +01:00
phy	phy-for-5.11	2020-12-09 14:26:40 +01:00
pinctrl	intel-pinctrl for v5.10-2	2020-11-10 15:35:41 +01:00
platform	platform/x86: touchscreen_dmi: Add info for the Irbis TW118 tablet	2020-11-26 15:49:16 +01:00
pnp	PNP: fix kernel-doc markups	2020-10-27 19:23:04 +01:00
power	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
powercap	Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2020-11-10 10:02:31 -08:00
pps
ps3
ptp	ptp: clockmatrix: bug fix for idtcm_strverscmp	2020-11-25 17:24:49 -08:00
pwm	pwm: sl28cpld: fix getting driver data in pwm callbacks	2020-12-03 09:57:37 -08:00
rapidio	rapidio: fix the missed put_device() for rio_mport_add_riodev	2020-10-16 11:11:22 -07:00
ras
regulator	regulator: ti-abb: Fix array out of bound read access on the first transition	2020-11-18 17:59:24 +00:00
remoteproc	remoteproc updates for v5.10	2020-10-22 12:56:33 -07:00
reset	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
rpmsg	rpmsg updates for 5.10	2020-10-22 12:58:21 -07:00
rtc	RTC for 5.10	2020-10-21 11:22:08 -07:00
s390	Networking fixes for 5.10-rc6, including fixes from the WiFi driver,	2020-11-27 14:38:02 -08:00
sbus
scsi	SCSI fixes on 20201205	2020-12-05 10:59:21 -08:00
sfi
sh
siox
slimbus	slimbus: qcom-ngd-ctrl: remove redundant out of memory messages	2020-11-27 16:03:43 +01:00
soc	NXP/FSL SoC driver fix for 5.10	2020-11-26 22:07:22 +01:00
soundwire	soundwire: intel: fix another unused-function warning	2020-12-05 13:11:54 +05:30
spi	spi: dw: Fix spi registration for controllers overriding CS	2020-11-25 12:54:05 +00:00
spmi
ssb
staging	phy-for-5.11	2020-12-09 14:26:40 +01:00
target	SCSI fixes on 20201120	2020-11-20 16:24:28 -08:00
tc
tee	ARM: SoC fixes for v5.10, part 3	2020-11-27 14:48:03 -08:00
thermal	thermal: ti-soc-thermal: Disable the CPU PM notifier for OMAP4430	2020-11-12 12:30:29 +01:00
thunderbolt	thunderbolt: Fix use-after-free in remove_unplugged_switch()	2020-11-19 17:44:10 +03:00
tty	tty: Fix ->session locking	2020-12-04 17:39:58 +01:00
uio	Merge 5.10-rc4 into char-misc-next	2020-11-16 09:18:46 +01:00
usb	phy-for-5.11	2020-12-09 14:26:40 +01:00
vdpa	vdpa: mlx5: fix vdpa/vhost dependencies	2020-12-02 04:09:56 -05:00
vfio	vfio/pci: Bypass IGD init in case of -ENODEV	2020-11-03 11:07:40 -07:00
vhost	vhost_vdpa: return -EFAULT if copy_to_user() fails	2020-12-02 04:36:40 -05:00
video	hyperv-fixes for 5.10-rc6	2020-11-23 15:29:03 -08:00
virt	nitro_enclaves: Fixup type and simplify logic of the poll mask setup	2020-11-09 18:20:36 +01:00
virtio	vhost,vdpa,virtio: cleanups, fixes	2020-10-23 11:00:57 -07:00
visorbus
vlynq
vme	vme: fix two kernel-doc markups	2020-11-09 18:39:46 +01:00
w1	w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd'	2020-11-12 08:50:13 +01:00
watchdog	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
xen	swiotlb: remove the tbl_dma_addr argument to swiotlb_tbl_map_single	2020-11-02 10:10:39 -05:00
zorro
Kconfig
Makefile	vdpa: mlx5: fix vdpa/vhost dependencies	2020-12-02 04:09:56 -05:00