From: Gowrishankar M <gomuthuk@xxxxxxxxxxxxxxxxxx>
At present, while signalling processes using sysrq, process iteration
goes beyond current PID namespace.
Below patch uses one of the proposed namespace iteration macros to fix
the boundary.
Signed-off-by: Gowrishankar M <gowrishankar.m@xxxxxxxxxxxxxxxxxx>
---
drivers/char/sysrq.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index ce0d9da..adca5da 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -13,6 +13,7 @@
*/
#include <linux/sched.h>
+#include <linux/pid_namespace.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/fs.h>
@@ -293,8 +294,8 @@ static void send_sig_all(int sig)
{
struct task_struct *p;
- for_each_process(p) {
- if (p->mm && !is_global_init(p))
+ for_each_process_in_ns(p, current->nsproxy->pid_ns) {
+ if (p->mm && !is_container_init(p))
/* Not swapper, init nor kernel thread */
force_sig(sig, p);
}
--
1.5.5.1
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