Colin Ian King 38b1b66e57 x86/mtrr: Don't copy uninitialized gentry fields back to userspace ... commit 32043fa065b51e0b1433e48d118821c71b5cd65d upstream. Currently the copy_to_user of data in the gentry struct is copying uninitiaized data in field _pad from the stack to userspace. Fix this by explicitly memset'ing gentry to zero, this also will zero any compiler added padding fields that may be in struct (currently there are none). Detected by CoverityScan, CID#200783 ("Uninitialized scalar variable") Fixes: b263b31e8a ("x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Tyler Hicks <tyhicks@canonical.com> Cc: security@kernel.org Link: https://lkml.kernel.org/r/20181218172956.1440-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-01-13 10:05:27 +01:00
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alpha	arch/alpha, termios: implement BOTHER, IBSHIFT and termios2	2018-11-21 09:27:42 +01:00
arc	ARC: io.h: Implement reads{x}()/writes{x}()	2018-12-21 14:09:52 +01:00
arm	ARM: 8814/1: mm: improve/fix ARM v7_dma_inv_range() unaligned address handling	2018-12-21 14:09:53 +01:00
arm64	arm64: remove no-op -p linker flag	2018-12-01 09:46:36 +01:00
avr32
blackfin
c6x
cris	mm: replace get_user_pages() write/force parameters with gup_flags	2018-12-17 21:55:16 +01:00
frv
h8300
hexagon	hexagon: modify ffs() and fls() to return int	2018-10-10 08:52:12 +02:00
ia64	mm: replace get_user_pages() write/force parameters with gup_flags	2018-12-17 21:55:16 +01:00
m32r
m68k
metag
microblaze
mips	mm: replace get_user_pages_unlocked() write/force parameters with gup_flags	2018-12-17 21:55:16 +01:00
mn10300
nios2
openrisc
parisc	parisc: Fix map_pages() to not overwrite existing pte entries	2018-11-21 09:27:30 +01:00
powerpc	powerpc/msi: Fix NULL pointer access in teardown code	2018-12-21 14:09:51 +01:00
s390	mm: replace get_user_pages_unlocked() write/force parameters with gup_flags	2018-12-17 21:55:16 +01:00
score
sh	mm: replace get_user_pages_unlocked() write/force parameters with gup_flags	2018-12-17 21:55:16 +01:00
sparc	mm: replace get_user_pages_unlocked() write/force parameters with gup_flags	2018-12-17 21:55:16 +01:00
tile
um	um: Give start_idle_thread() a return code	2018-11-27 16:08:00 +01:00
unicore32
x86	x86/mtrr: Don't copy uninitialized gentry fields back to userspace	2019-01-13 10:05:27 +01:00
xtensa	xtensa: fix coprocessor context offset definitions	2018-12-13 09:21:26 +01:00
.gitignore
Kconfig