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Fuqian Huang d66da05c7b m68k: q40: Fix info-leak in rtc_ioctl 
[ Upstream commit 7cf78b6b12 ]

When the option is RTC_PLL_GET, pll will be copied to userland
via copy_to_user. pll is initialized using mach_get_rtc_pll indirect
call and mach_get_rtc_pll is only assigned with function
q40_get_rtc_pll in arch/m68k/q40/config.c.
In function q40_get_rtc_pll, the field pll_ctrl is not initialized.
This will leak uninitialized stack content to userland.
Fix this by zeroing the uninitialized field.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Link: https://lore.kernel.org/r/20190927121544.7650-1-huangfq.daxian@gmail.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:12:26 +02:00
..
68000 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amiga m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
apollo License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atari m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
bvme6000 m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
coldfire m68k/PCI: Fix a memory leak in an error handling path 2020-06-25 15:41:49 +02:00
configs m68k/defconfig: Update defconfigs for v4.13-rc1 2017-08-21 11:52:20 +02:00
emu net: Remove usage of net_device last_rx member 2017-01-18 17:22:49 -05:00
fpsp040 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hp300 m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
ifpsp060 scripts/spelling.txt: add regsiter -> register spelling mistake 2017-05-08 17:15:13 -07:00
include m68knommu: fix overwriting of bits in ColdFire V3 cache control 2020-08-26 10:29:56 +02:00
kernel m68k: fix command-line parsing when passed from u-boot 2019-12-01 09:13:24 +01:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mac m68k: mac: Fix IOP status/control register writes 2020-08-21 09:48:03 +02:00
math-emu m68k: Assorted spelling fixes 2016-07-03 14:05:28 +02:00
mm m68k/mm: Adjust VM area to be unmapped by gap size for __iounmap() 2018-07-03 11:24:46 +02:00
mvme16x m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
mvme147 m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
q40 m68k: q40: Fix info-leak in rtc_ioctl 2020-10-01 13:12:26 +02:00
sun3 m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
sun3x m68k: Call timer_interrupt() with interrupts disabled 2020-01-27 14:46:54 +01:00
tools/amiga License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
install.sh
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.bus License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.cpu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.debug License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.devices License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.machine License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile m68k: Add -ffreestanding to CFLAGS 2019-03-23 14:35:21 +01:00