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-rw-r--r--security/commoncap.c4
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.