kernel.git/arch/s390/kernel/compat_linux.c, branch linux-3.18.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-3.18.y2018-02-25T10:01:15Zs390: fix handling of -1 in set{,fs}[gu]id16 syscalls2018-02-25T10:01:15ZEugene Syromiatnikov2018-01-15T19:38:17Zurn:sha1:ae0dd9e49bd17c6637a4485ff9f827ef200457e5
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>
groups: Consolidate the setgroups permission checks2015-01-08T18:30:25ZEric W. Biederman2014-12-05T23:19:27Zurn:sha1:e726c9a0a24b1381b2714dbeca322ab446fccb4a
commit 7ff4d90b4c24a03666f296c3d4878cd39001e81e upstream.
Today there are 3 instances of setgroups and due to an oversight their
permission checking has diverged. Add a common function so that
they may all share the same permission checking code.
This corrects the current oversight in the current permission checks
and adds a helper to avoid this in the future.
A user namespace security fix will update this new helper, shortly.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
s390/compat: add sync_file_range and fallocate compat syscalls2014-03-04T08:05:47ZHeiko Carstens2014-03-01T12:09:26Zurn:sha1:2c81fc4fb41f589454861bbdb90ffde73840b8f8
The compat syscall wrappers for sync_file_range and fallocate merged 32 bit
parameters into 64 bit parameters. Therefore they did more than just the
usual zero and/or sign extension of system call parameters.
So convert these two wrappers to full s390 specific compat sytem calls.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 72014-03-04T08:05:38ZHeiko Carstens2014-02-26T13:40:43Zurn:sha1:5383d2c8b3ee61a762043818d7c07bbc0049b031
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 62014-03-04T08:05:37ZHeiko Carstens2014-02-26T13:05:34Zurn:sha1:a0f8c6da8f3da63283e978ebece03e81d107b1d0
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 52014-03-04T08:05:36ZHeiko Carstens2014-02-26T11:51:40Zurn:sha1:52a0b536a3addcfe20325303b2dddc2538019476
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 42014-03-04T08:05:36ZHeiko Carstens2014-02-26T09:58:09Zurn:sha1:e723e0cc17f8d8573b19a809277d81cecdd6e92b
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 32014-03-04T08:05:35ZHeiko Carstens2014-02-25T15:17:41Zurn:sha1:4ca2ea58c8421784bdad43b05e9939549e4d34e9
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 22014-03-04T08:05:35ZHeiko Carstens2014-02-25T14:52:24Zurn:sha1:208096eee2fa44de0464e1f3c1f0c1ca1afe67ad
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 12014-03-04T08:05:34ZHeiko Carstens2014-02-25T13:08:39Zurn:sha1:c6c0f58f90cb8e159702ccc08772bc9221f1c35e
Convert s390 specific system calls to to the new COMPAT_SYSCALL_DEFINE macro.
This allows us to get rid of the assembly compat wrappers.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>