Alexander Lobakin 0e488a1781 MIPS: relocatable: fix possible boot hangup with KASLR enabled ... commit 69e976831c upstream. LLVM-built Linux triggered a boot hangup with KASLR enabled. arch/mips/kernel/relocate.c:get_random_boot() uses linux_banner, which is a string constant, as a random seed, but accesses it as an array of unsigned long (in rotate_xor()). When the address of linux_banner is not aligned to sizeof(long), such access emits unaligned access exception and hangs the kernel. Use PTR_ALIGN() to align input address to sizeof(long) and also align down the input length to prevent possible access-beyond-end. Fixes: 405bc8fd12 ("MIPS: Kernel: Implement KASLR using CONFIG_RELOCATABLE") Cc: stable@vger.kernel.org # 4.7+ Signed-off-by: Alexander Lobakin <alobakin@pm.me> Tested-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-19 18:22:35 +01:00
..
alchemy	MIPS: Alchemy: Fix memleak in alchemy_clk_setup_cpu	2020-11-24 13:27:22 +01:00
ar7
ath25
ath79
bcm47xx	MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMA	2020-12-30 11:25:53 +01:00
bcm63xx	MIPS: BCM63XX: drop unused and broken DSP platform device	2020-01-27 14:50:10 +01:00
bmips
boot	MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB	2021-01-19 18:22:35 +01:00
cavium-octeon	MIPS: OCTEON: add missing put_device() call in dwc3_octeon_device_init()	2020-08-19 08:14:58 +02:00
cobalt
configs	scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled	2020-07-22 09:32:04 +02:00
crypto
dec
emma
fw
generic
include	MIPS: Add the missing 'CPU_1074K' into __get_cpu_type()	2020-10-01 13:14:53 +02:00
jazz
jz4740
kernel	MIPS: relocatable: fix possible boot hangup with KASLR enabled	2021-01-19 18:22:35 +01:00
kvm	KVM: MIPS: Change the definition of kvm type	2020-09-23 12:10:59 +02:00
lantiq
lasat
lib
loongson32
loongson64	MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init()	2020-02-24 08:34:37 +01:00
math-emu
mm	MIPS: export has_transparent_hugepage() for modules	2020-11-24 13:27:21 +01:00
mti-malta
net	bpf, mips: Limit to 33 tail calls	2020-01-12 12:17:12 +01:00
netlogic
oprofile
paravirt
pci
pic32
pistachio
pmcs-msp71xx
pnx833x
power
ralink
rb532
sgi-ip22
sgi-ip27
sgi-ip32
sibyte
sni	MIPS: SNI: Fix spurious interrupts	2020-09-23 12:11:00 +02:00
tools
txx9
vdso	mips/vdso: Fix resource leaks in genvdso.c	2020-09-03 11:24:21 +02:00
vr41xx
Kbuild
Kbuild.platforms
Kconfig	MIPS: SNI: Fix MIPS_L1_CACHE_SHIFT	2020-09-23 12:11:00 +02:00
Kconfig.debug
Makefile	MIPS: Truncate link address into 32bit for 32bit kernel	2020-06-22 09:05:15 +02:00
Makefile.postlink	MIPS: fix indentation of the 'RELOCS' message	2020-02-11 04:33:58 -08:00