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Jeff Layton fc2f802193 fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall
commit 4d2dc2cc76 upstream.

Currently, we're capping the values too low in the F_GETLK64 case. The
fields in that structure are 64-bit values, so we shouldn't need to do
any sort of fixup there.

Make sure we check that assumption at build time in the future however
by ensuring that the sizes we're copying will fit.

With this, we no longer need COMPAT_LOFF_T_MAX either, so remove it.

Fixes: 94073ad77f (fs/locks: don't mess with the address limit in compat_fcntl64)
Reported-by: Vitaly Lipatov <lav@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-17 15:07:59 +01:00
..
alpha License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
arc License cleanup: add SPDX license identifiers to some files 2017-11-02 10:04:46 -07:00
arm ARM: avoid faulting on qemu 2017-12-14 09:53:05 +01:00
arm64 fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
blackfin License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
c6x License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
cris License cleanup: add SPDX license identifier to uapi header files with no license 2017-11-02 11:19:54 +01:00
frv License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
h8300 License cleanup: add SPDX license identifier to uapi header files with no license 2017-11-02 11:19:54 +01:00
hexagon License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
ia64 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-05 12:14:50 -08:00
m32r License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
m68k m68k: fix ColdFire node shift size calculation 2017-12-10 13:40:39 +01:00
metag License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
microblaze License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
mips fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
mn10300 License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
nios2 License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
openrisc License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
parisc fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
powerpc fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
s390 fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
score License cleanup: add SPDX license identifier to uapi header files with no license 2017-11-02 11:19:54 +01:00
sh License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
sparc fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
tile fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
um License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unicore32 License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
x86 fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall 2017-12-17 15:07:59 +01:00
xtensa License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
.gitignore
Kconfig kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y 2017-12-10 13:40:40 +01:00