diff options
Diffstat (limited to 'kernel/events/uprobes.c')
| -rw-r--r-- | kernel/events/uprobes.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index ea2a7c0728bb..d1edc5e6fd03 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -1867,10 +1867,11 @@ out: static void handle_singlestep(struct uprobe_task *utask, struct pt_regs *regs) { struct uprobe *uprobe; + int err = 0; uprobe = utask->active_uprobe; if (utask->state == UTASK_SSTEP_ACK) - arch_uprobe_post_xol(&uprobe->arch, regs); + err = arch_uprobe_post_xol(&uprobe->arch, regs); else if (utask->state == UTASK_SSTEP_TRAPPED) arch_uprobe_abort_xol(&uprobe->arch, regs); else @@ -1884,6 +1885,11 @@ static void handle_singlestep(struct uprobe_task *utask, struct pt_regs *regs) spin_lock_irq(¤t->sighand->siglock); recalc_sigpending(); /* see uprobe_deny_signal() */ spin_unlock_irq(¤t->sighand->siglock); + + if (unlikely(err)) { + uprobe_warn(current, "execute the probed insn, sending SIGILL."); + force_sig_info(SIGILL, SEND_SIG_FORCED, current); + } } /* |