>From d92b4befe07c6a1e852e4462126a5443342448cd Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
Date: Tue, 21 Oct 2008 18:00:01 -0700
Subject: [PATCH] kill sig -1 must only apply to callers namespace
Currently "kill <sig> -1" kills processes in all namespaces and breaks the
isolation of namespaces. Earlier attempt to fix this is discussed at:
http://lkml.org/lkml/2008/7/23/148
but nothing seems to have happened since then.
This patch uses the simple fix suggested by Oleg Nesterov.
Signed-off-by: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
---
kernel/signal.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kernel/signal.c b/kernel/signal.c
index 105217d..4530fc6 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1144,7 +1144,8 @@ static int kill_something_info(int sig, struct siginfo
*info, pid_t pid)
struct task_struct * p;
for_each_process(p) {
- if (p->pid > 1 && !same_thread_group(p, current)) {
+ if (task_pid_vnr(p) > 1 &&
+ !same_thread_group(p, current)) {
int err = group_send_sig_info(sig, info, p);
++count;
if (err != -EPERM)
--
1.5.2.5
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