From 2020d3957ebf30cf1517eceeda3069b0b8851741 Mon Sep 17 00:00:00 2001 From: Andrey Vagin Date: Mon, 1 Apr 2013 20:11:13 +0400 Subject: [PATCH] dump: prevent dumping if a session leader is outside of the current pidns A parasite code returns zero sid for such cases. Signed-off-by: Andrey Vagin Signed-off-by: Pavel Emelyanov --- cr-dump.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/cr-dump.c b/cr-dump.c index c8e2779e1..f62c42c49 100644 --- a/cr-dump.c +++ b/cr-dump.c @@ -1402,6 +1402,13 @@ static int dump_one_task(struct pstree_item *item) pr_info("sid=%d pgid=%d pid=%d\n", item->sid, item->pgid, item->pid.virt); + if (item->sid == 0) { + pr_err("A session leader of %d(%d) is outside of its pid namespace\n", + item->pid.real, item->pid.virt); + ret = -1; + goto err_cure; + } + ret = -1; cr_fdset = cr_task_fdset_open(item->pid.virt, O_DUMP); if (!cr_fdset)