Eugene Syromiatnikov 27f97375fc s390: fix handling of -1 in set{,fs}[gu]id16 syscalls ...

commit 6dd0d2d22aa363fec075cb2577ba273ac8462e94 upstream.

For some reason, the implementation of some 16-bit ID system calls
(namely, setuid16/setgid16 and setfsuid16/setfsgid16) used type cast
instead of low2highgid/low2highuid macros for converting [GU]IDs, which
led to incorrect handling of value of -1 (which ought to be considered
invalid).

Discovered by strace test suite.

Cc: stable@vger.kernel.org
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-02-22 15:42:17 +01:00

..

appldata

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

boot

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

configs

s390: fix zfcpdump-config

2017-10-16 08:19:01 +02:00

crypto

crypto: hash - annotate algorithms taking optional key

2018-02-16 20:23:00 +01:00

hypfs

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

include

s390: fix alloc_pgste check in init_new_context again

2018-02-03 17:39:00 +01:00

kernel

s390: fix handling of -1 in set{,fs}[gu]id16 syscalls

2018-02-22 15:42:17 +01:00

kvm

KVM: Let KVM_SET_SIGNAL_MASK work as advertised

2018-02-03 17:39:06 +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

mm

s390/mm: fix off-by-one bug in 5-level page table handling

2017-12-14 09:52:56 +01:00

net

bpf, s390x: do not reload skb pointers in non-skb context

2017-12-25 14:26:31 +01:00

numa

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

oprofile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pci

s390/pci: do not require AIS facility

2017-12-10 13:40:38 +01:00

tools

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

defconfig

s390: update defconfig

2017-06-08 15:53:48 +02:00

Kbuild

s390/crypto: Provide s390 specific arch random functionality.

2017-04-26 13:41:35 +02:00

Kconfig

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

Makefile

s390: add support for IBM z14 machines

2017-07-26 08:25:15 +02:00