Subject: + s390-compat-change-parameter-types-from-unsigned-long-to-compat_ulong_t.patch added to -mm tree
To: heiko.carstens@xxxxxxxxxx,brueckner@xxxxxxxxxxxxxxxxxx,hpa@xxxxxxxxx,mingo@xxxxxxxxxx,schwidefsky@xxxxxxxxxx,viro@xxxxxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 27 Jan 2014 14:49:51 -0800
The patch titled
Subject: s390/compat: change parameter types from unsigned long to compat_ulong_t
has been added to the -mm tree. Its filename is
s390-compat-change-parameter-types-from-unsigned-long-to-compat_ulong_t.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/s390-compat-change-parameter-types-from-unsigned-long-to-compat_ulong_t.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/s390-compat-change-parameter-types-from-unsigned-long-to-compat_ulong_t.patch
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From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Subject: s390/compat: change parameter types from unsigned long to compat_ulong_t
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 56e41d3c5aa84 "merge compat sys_ipc instances".
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/s390/kernel/compat_linux.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN arch/s390/kernel/compat_linux.c~s390-compat-change-parameter-types-from-unsigned-long-to-compat_ulong_t arch/s390/kernel/compat_linux.c
--- a/arch/s390/kernel/compat_linux.c~s390-compat-change-parameter-types-from-unsigned-long-to-compat_ulong_t
+++ a/arch/s390/kernel/compat_linux.c
@@ -286,8 +286,8 @@ asmlinkage long sys32_getegid16(void)
}
#ifdef CONFIG_SYSVIPC
-COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
- unsigned long, third, compat_uptr_t, ptr)
+COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, compat_ulong_t, second,
+ compat_ulong_t, third, compat_uptr_t, ptr)
{
if (call >> 16) /* hack for backward compatibility */
return -EINVAL;
_
Patches currently in -mm which might be from heiko.carstens@xxxxxxxxxx are
origin.patch
fs-compat-fix-parameter-handling-for-compat-readv-writev-syscalls.patch
fs-compat-fix-lookup_dcookie-parameter-handling.patch
s390-compat-change-parameter-types-from-unsigned-long-to-compat_ulong_t.patch
linux-next.patch
compat-fix-sys_fanotify_mark.patch
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