1 files changed, 4 insertions, 0 deletions

diff --git a/security/commoncap.c b/security/commoncap.c
index bf67871173ef..302e8d0839a9 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -526,6 +526,10 @@ int cap_task_kill(struct task_struct *p, struct siginfo *info,
         if (info != SEND_SIG_NOINFO && (is_si_special(info) || SI_FROMKERNEL(info)))
                 return 0;
 
+        /* sigcont is permitted within same session */
+        if (sig == SIGCONT && (task_session_nr(current) == task_session_nr(p)))
+                return 0;
+
         if (secid)
                 /*
                  * Signal sent as a particular user.