* [PATCH] seccomp: ignore secure_computing return values
@ 2012-04-16 17:47 Will Drewry
2012-04-16 22:47 ` Stephen Rothwell
0 siblings, 1 reply; 3+ messages in thread
From: Will Drewry @ 2012-04-16 17:47 UTC (permalink / raw)
To: jmorris; +Cc: linux-kernel, sfr, linux-security-module, Will Drewry
Unless an architecture selects CONFIG_HAVE_ARCH_SECCOMP_FILTER, it
is not required to respect the return value from secure_computing().
This change matches https://lkml.org/lkml/2012/4/16/14 exactly except
that it applies cleanly to security-next. Because there is no
other difference than the alignment, I've kept Signed-off-by intact.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Will Drewry <wad@chromium.org>
---
arch/microblaze/kernel/ptrace.c | 2 +-
arch/mips/kernel/ptrace.c | 2 +-
arch/powerpc/kernel/ptrace.c | 2 +-
arch/s390/kernel/ptrace.c | 2 +-
arch/sh/kernel/ptrace_32.c | 2 +-
arch/sh/kernel/ptrace_64.c | 2 +-
arch/sparc/kernel/ptrace_64.c | 2 +-
7 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index 6eb2aa9..9e3ffc9 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -136,7 +136,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
{
long ret = 0;
- secure_computing(regs->r12);
+ (void)secure_computing(regs->r12);
if (test_thread_flag(TIF_SYSCALL_TRACE) &&
tracehook_report_syscall_entry(regs))
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 7c24c29..4f83d73 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -535,7 +535,7 @@ static inline int audit_arch(void)
asmlinkage void syscall_trace_enter(struct pt_regs *regs)
{
/* do the secure computing check first */
- secure_computing(regs->regs[2]);
+ (void)secure_computing(regs->regs[2]);
if (!(current->ptrace & PT_PTRACED))
goto out;
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 8d8e028..53cebc4 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1710,7 +1710,7 @@ long do_syscall_trace_enter(struct pt_regs *regs)
{
long ret = 0;
- secure_computing(regs->gpr[0]);
+ (void)secure_computing(regs->gpr[0]);
if (test_thread_flag(TIF_SYSCALL_TRACE) &&
tracehook_report_syscall_entry(regs))
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 02f300f..96e0dea 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -719,7 +719,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
long ret = 0;
/* Do the secure computing check first. */
- secure_computing(regs->gprs[2]);
+ (void)secure_computing(regs->gprs[2]);
/*
* The sysc_tracesys code in entry.S stored the system
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 9698671..cf55945 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -503,7 +503,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
{
long ret = 0;
- secure_computing(regs->regs[0]);
+ (void)secure_computing(regs->regs[0]);
if (test_thread_flag(TIF_SYSCALL_TRACE) &&
tracehook_report_syscall_entry(regs))
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index bc81e07..3d3600f 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -522,7 +522,7 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
{
long long ret = 0;
- secure_computing(regs->regs[9]);
+ (void)secure_computing(regs->regs[9]);
if (test_thread_flag(TIF_SYSCALL_TRACE) &&
tracehook_report_syscall_entry(regs))
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 6f97c07..6ddec1f 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -1062,7 +1062,7 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
int ret = 0;
/* do the secure computing check first */
- secure_computing(regs->u_regs[UREG_G1]);
+ (void)secure_computing(regs->u_regs[UREG_G1]);
if (test_thread_flag(TIF_SYSCALL_TRACE))
ret = tracehook_report_syscall_entry(regs);
--
1.7.5.4
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] seccomp: ignore secure_computing return values
2012-04-16 17:47 [PATCH] seccomp: ignore secure_computing return values Will Drewry
@ 2012-04-16 22:47 ` Stephen Rothwell
2012-04-16 22:57 ` Will Drewry
0 siblings, 1 reply; 3+ messages in thread
From: Stephen Rothwell @ 2012-04-16 22:47 UTC (permalink / raw)
To: Will Drewry; +Cc: jmorris, linux-kernel, linux-security-module
[-- Attachment #1: Type: text/plain, Size: 814 bytes --]
Hi Will,
On Mon, 16 Apr 2012 12:47:41 -0500 Will Drewry <wad@chromium.org> wrote:
>
> Unless an architecture selects CONFIG_HAVE_ARCH_SECCOMP_FILTER, it
> is not required to respect the return value from secure_computing().
>
> This change matches https://lkml.org/lkml/2012/4/16/14 exactly except
> that it applies cleanly to security-next. Because there is no
> other difference than the alignment, I've kept Signed-off-by intact.
Given that, I think you should have kept the authorship (i.e. put
From: Stephen Rothwell <sfr@canb.auug.org.au>
at the top of the patch). Also, you should probably mention the compile
error that this fixes in the commit message as well.
But otherwise, thanks for submitting this.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
[-- Attachment #2: Type: application/pgp-signature, Size: 836 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] seccomp: ignore secure_computing return values
2012-04-16 22:47 ` Stephen Rothwell
@ 2012-04-16 22:57 ` Will Drewry
0 siblings, 0 replies; 3+ messages in thread
From: Will Drewry @ 2012-04-16 22:57 UTC (permalink / raw)
To: Stephen Rothwell; +Cc: jmorris, linux-kernel, linux-security-module
On Mon, Apr 16, 2012 at 5:47 PM, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> Hi Will,
>
> On Mon, 16 Apr 2012 12:47:41 -0500 Will Drewry <wad@chromium.org> wrote:
>>
>> Unless an architecture selects CONFIG_HAVE_ARCH_SECCOMP_FILTER, it
>> is not required to respect the return value from secure_computing().
>>
>> This change matches https://lkml.org/lkml/2012/4/16/14 exactly except
>> that it applies cleanly to security-next. Because there is no
>> other difference than the alignment, I've kept Signed-off-by intact.
>
> Given that, I think you should have kept the authorship (i.e. put
>
> From: Stephen Rothwell <sfr@canb.auug.org.au>
No problem - happy to resend! I manually created the patch (grep; vi)
but and the result was identical :)
> at the top of the patch). Also, you should probably mention the compile
> error that this fixes in the commit message as well.
I'll fix it and resend!
> But otherwise, thanks for submitting this.
Didn't mean to obscure authorship or the details.
Cheers!
will
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-04-16 17:47 [PATCH] seccomp: ignore secure_computing return values Will Drewry
2012-04-16 22:47 ` Stephen Rothwell
2012-04-16 22:57 ` Will Drewry
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