The patch titled ptrace_signal: check PT_PTRACED before reporting a signal has been added to the -mm tree. Its filename is ptrace_signal-check-pt_ptraced-before-reporting-a-signal.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: ptrace_signal: check PT_PTRACED before reporting a signal From: Oleg Nesterov <oleg@xxxxxxxxxx> No functional changes, preparation for utrace-ptrace. Change ptrace_signal() to check PT_PTRACED instead of task_ptrace() != 0. Currently this is the same, PT_PTRACED must be always set if the task is ptraced. This change is needed to make sure ptrace_signal() does nothing if ptrace is implemented on top of utrace, eventually this code will be removed completely. Signed-off-by: Roland McGrath <roland@xxxxxxxxxx> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx> Cc: Andi Kleen <andi@xxxxxxxxxxxxxx> Tested-by: Ananth Mavinakayanahalli <ananth@xxxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx> Cc: "Frank Ch. Eigler" <fche@xxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN kernel/signal.c~ptrace_signal-check-pt_ptraced-before-reporting-a-signal kernel/signal.c --- a/kernel/signal.c~ptrace_signal-check-pt_ptraced-before-reporting-a-signal +++ a/kernel/signal.c @@ -1767,7 +1767,7 @@ static int do_signal_stop(int signr) static int ptrace_signal(int signr, siginfo_t *info, struct pt_regs *regs, void *cookie) { - if (!task_ptrace(current)) + if (!(task_ptrace(current) & PT_PTRACED)) return signr; ptrace_signal_deliver(regs, cookie); _ Patches currently in -mm which might be from oleg@xxxxxxxxxx are origin.patch linux-next.patch posix-cpu-timers-reset-expire-cache-when-no-timer-is-running.patch tracehooks-kill-some-pt_ptraced-checks.patch tracehooks-check-pt_ptraced-before-reporting-the-single-step.patch ptrace_signal-check-pt_ptraced-before-reporting-a-signal.patch export-__ptrace_detach-and-do_notify_parent_cldstop.patch reorder-the-code-in-kernel-ptracec.patch implement-utrace-ptrace.patch utrace-core.patch copy_signal-cleanup-use-zalloc-and-remove-initializations.patch copy_signal-cleanup-kill-taskstats_tgid_init-and-acct_init_pacct.patch copy_signal-cleanup-clean-thread_group_cputime_init.patch copy_signal-cleanup-clean-tty_audit_fork.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html