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| author | Andrea Arcangeli <andrea@cpushare.com> | 2005-06-23 22:00:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-24 00:05:18 -0700 |
| commit | 7286aa9b9ab35f20b1ff16d867f4535701df99b5 (patch) | |
| tree | c816ea0350a0f0c7ac503c6020a6ea5398a59ee4 /arch | |
| parent | 16822e62053e73fa7def9decc38a7e287d27d980 (diff) | |
| download | linux-7286aa9b9ab35f20b1ff16d867f4535701df99b5.tar.gz linux-7286aa9b9ab35f20b1ff16d867f4535701df99b5.tar.bz2 linux-7286aa9b9ab35f20b1ff16d867f4535701df99b5.zip | |
[PATCH] ppc64: fix seccomp with 32-bit userland
The seccomp check has to happen when entering the syscall and not when
exiting it or regs->gpr[0] contains garabge during signal handling in
ppc64_rt_sigreturn (this actually might be a bug too, but an orthogonal
one, since we really have to run the check before invoking the syscall and
not after it).
Signed-off-by: Andrea Arcangeli <andrea@cpushare.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ppc64/kernel/ptrace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/ppc64/kernel/ptrace.c b/arch/ppc64/kernel/ptrace.c index 9f8c6087ae56..2993f108d96d 100644 --- a/arch/ppc64/kernel/ptrace.c +++ b/arch/ppc64/kernel/ptrace.c @@ -305,6 +305,8 @@ static void do_syscall_trace(void) void do_syscall_trace_enter(struct pt_regs *regs) { + secure_computing(regs->gpr[0]); + if (test_thread_flag(TIF_SYSCALL_TRACE) && (current->ptrace & PT_PTRACED)) do_syscall_trace(); @@ -320,8 +322,6 @@ void do_syscall_trace_enter(struct pt_regs *regs) void do_syscall_trace_leave(struct pt_regs *regs) { - secure_computing(regs->gpr[0]); - if (unlikely(current->audit_context)) audit_syscall_exit(current, (regs->ccr&0x1000)?AUDITSC_FAILURE:AUDITSC_SUCCESS, |