lwn.git/arch/s390/kernel/compat_linux.c, branch v3.19-rc4

groups: Consolidate the setgroups permission checks

2014-12-05T23:19:27+00:00

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. Cc: stable@vger.kernel.org Signed-off-by: "Eric W. Biederman"

s390/compat: add sync_file_range and fallocate compat syscalls

2014-03-04T08:05:47+00:00

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

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 7

2014-03-04T08:05:38+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 6

2014-03-04T08:05:37+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 5

2014-03-04T08:05:36+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 4

2014-03-04T08:05:36+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 3

2014-03-04T08:05:35+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 2

2014-03-04T08:05:35+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 1

2014-03-04T08:05:34+00:00

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

s390/compat: change parameter types from unsigned long to compat_ulong_t

2014-01-30T00:22:40+00:00

Change parameter types of s390's compat ipc syscall from unsigned long to compat_ulong_t to enforce zero extension of these parameters. This is not really a bug, since s390_ipc compat syscall is only a wrapper to the generic compat_sys_ipc() syscall, which performs correct zero and sign extension. This was introduced with commit 56e41d3c5aa8 ("merge compat sys_ipc instances"). Signed-off-by: Heiko Carstens Cc: Al Viro Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: Hendrik Brueckner Cc: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds