diff options
Diffstat (limited to 'pkg/sentry/kernel/task_signals.go')
| -rw-r--r-- | pkg/sentry/kernel/task_signals.go | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/task_signals.go b/pkg/sentry/kernel/task_signals.go index fe24f7542..583acddb1 100644 --- a/pkg/sentry/kernel/task_signals.go +++ b/pkg/sentry/kernel/task_signals.go @@ -22,8 +22,10 @@ import ( "time" "gvisor.googlesource.com/gvisor/pkg/abi/linux" + "gvisor.googlesource.com/gvisor/pkg/eventchannel" "gvisor.googlesource.com/gvisor/pkg/sentry/arch" "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/auth" + ucspb "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/uncaught_signal_go_proto" "gvisor.googlesource.com/gvisor/pkg/sentry/usermem" "gvisor.googlesource.com/gvisor/pkg/syserror" ) @@ -184,6 +186,23 @@ func (t *Task) deliverSignal(info *arch.SignalInfo, act arch.SignalAct) taskRunS case SignalActionTerm, SignalActionCore: // "Default action is to terminate the process." - signal(7) t.Debugf("Signal %d: terminating thread group", info.Signo) + + // Emit an event channel messages related to this uncaught signal. + ucs := &ucspb.UncaughtSignal{ + Tid: int32(t.Kernel().TaskSet().Root.IDOfTask(t)), + Pid: int32(t.Kernel().TaskSet().Root.IDOfThreadGroup(t.ThreadGroup())), + Registers: t.Arch().StateData().Proto(), + SignalNumber: info.Signo, + } + + // Attach an fault address if appropriate. + switch linux.Signal(info.Signo) { + case linux.SIGSEGV, linux.SIGFPE, linux.SIGILL, linux.SIGTRAP, linux.SIGBUS: + ucs.FaultAddr = info.Addr() + } + + eventchannel.Emit(ucs) + t.PrepareGroupExit(ExitStatus{Signo: int(info.Signo)}) return (*runExit)(nil) |