Ard Biesheuvel b9bc36704c ARM, xtensa: highmem: avoid clobbering non-page aligned memory reservations ... free_highpages() iterates over the free memblock regions in high memory, and marks each page as available for the memory management system. Until commit cddb5ddf2b ("arm, xtensa: simplify initialization of high memory pages") it rounded beginning of each region upwards and end of each region downwards. However, after that commit free_highmem() rounds the beginning and end of each region downwards, and we may end up freeing a page that is memblock_reserve()d, resulting in memory corruption. Restore the original rounding of the region boundaries to avoid freeing reserved pages. Fixes: cddb5ddf2b ("arm, xtensa: simplify initialization of high memory pages") Link: https://lore.kernel.org/r/20201029110334.4118-1-ardb@kernel.org/ Link: https://lore.kernel.org/r/20201031094345.6984-1-rppt@kernel.org Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Co-developed-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com>		2020-11-04 10:42:57 +02:00
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boot	STM32 DT fixes for v5.10, round 1	2020-10-28 17:09:56 +01:00
common	ARM/sa1111: add a missing include of dma-map-ops.h	2020-10-20 09:40:33 +02:00
configs	ARM: multi_v5_defconfig: Select CONFIG_GPIO_MXC	2020-10-27 07:45:43 +08:00
crypto	crypto: arm/aes-neonbs - use typed init/exit routines for XTS	2020-09-25 17:48:15 +10:00
include	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
kernel	arm/build: Always handle .ARM.exidx and .ARM.extab sections	2020-10-27 11:32:21 -07:00
lib	arm: propagate the calling convention changes down to csum_partial_copy_from_user()	2020-08-20 15:45:16 -04:00
mach-actions	…
mach-alpine	…
mach-artpec	…
mach-asm9260	…
mach-aspeed	…
mach-at91	ARM: at91: pm: remove unnecessary at91sam9x60_idle	2020-08-17 11:18:59 +02:00
mach-axxia	…
mach-bcm	ARM: bcm: Enable BCM7038_L1_IRQ for ARCH_BRCMSTB	2020-08-17 09:20:34 -07:00
mach-berlin	…
mach-clps711x	…
mach-cns3xxx	…
mach-davinci	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
mach-digicolor	…
mach-dove	…
mach-ebsa110	…
mach-efm32	…
mach-ep93xx	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mach-exynos	Samsung mach/soc changes for v5.10	2020-09-26 12:55:43 -07:00
mach-footbridge	…
mach-gemini	…
mach-highbank	dma-mapping: split <linux/dma-mapping.h>	2020-10-06 07:07:03 +02:00
mach-hisi	ARM: hisi: add support for SD5203 SoC	2020-09-30 09:56:03 +08:00
mach-imx	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
mach-integrator	…
mach-iop32x	…
mach-ixp4xx	ARM/ixp4xx: add a missing include of dma-map-ops.h	2020-10-13 13:28:22 +02:00
mach-keystone	dma-mapping: introduce DMA range map, supplanting dma_pfn_offset	2020-09-17 18:43:56 +02:00
mach-lpc18xx	…
mach-lpc32xx	…
mach-mediatek	…
mach-meson	…
mach-milbeaut	…
mach-mmp	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mach-moxart	…
mach-mstar	ARM: mstar: Select MStar intc	2020-10-03 12:47:56 -07:00
mach-mv78xx0	…
mach-mvebu	mvebu fixes for 5.9 (part 1)	2020-10-26 10:11:55 +01:00
mach-mxs	…
mach-nomadik	…
mach-npcm	…
mach-nspire	…
mach-omap1	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
mach-omap2	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
mach-orion5x	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mach-oxnas	…
mach-picoxcell	…
mach-prima2	…
mach-pxa	power: supply: gpio-charger: Convert to GPIO descriptors	2020-08-27 16:47:14 +02:00
mach-qcom	…
mach-rda	…
mach-realtek	…
mach-realview	…
mach-rockchip	…
mach-rpc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mach-s3c	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
mach-s5pv210	ARM: s5pv210: use private pm save/restore	2020-08-19 21:33:11 +02:00
mach-sa1100	power: supply: gpio-charger: Convert to GPIO descriptors	2020-08-27 16:47:14 +02:00
mach-shmobile	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
mach-socfpga	…
mach-spear	…
mach-sti	…
mach-stm32	ARM: stm32: Replace HTTP links with HTTPS ones	2020-10-03 12:38:54 -07:00
mach-sunxi	…
mach-tango	…
mach-tegra	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mach-u300	…
mach-uniphier	…
mach-ux500	…
mach-versatile	…
mach-vexpress	…
mach-vt8500	…
mach-zx	…
mach-zynq	…
mm	ARM, xtensa: highmem: avoid clobbering non-page aligned memory reservations	2020-11-04 10:42:57 +02:00
net	…
nwfpe	…
oprofile	…
plat-omap	PM: AVS: smartreflex Move driver to soc specific drivers	2020-10-16 18:28:43 +02:00
plat-orion	…
plat-pxa	…
plat-versatile	…
probes	arm: kprobes: Use generic kretprobe trampoline handler	2020-09-08 11:52:32 +02:00
tools	mm/madvise: introduce process_madvise() syscall: an external memory hinting API	2020-10-18 09:27:10 -07:00
vdso	kbuild: explicitly specify the build id style	2020-10-09 23:57:30 +09:00
vfp	…
xen	dma-mapping updates for 5.10	2020-10-15 14:43:29 -07:00
Kbuild	…
Kconfig	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
Kconfig-nommu	…
Kconfig.assembler	…
Kconfig.debug	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
Makefile	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00