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authorIngo Molnar <mingo@kernel.org>2017-11-08 10:17:15 +0100
committerIngo Molnar <mingo@kernel.org>2017-11-08 10:17:15 +0100
commit8a103df440afea30c91ebd42e61dc644e647f4bd (patch)
tree2cfa99e9c6e1e138e1404bce4294e46cb0034cce /kernel/fork.c
parenta9903f04e0a4ea522d959c2f287cdf0ab029e324 (diff)
parentfbc3edf7d7731d7a22c483c679700589bab936a3 (diff)
downloadcachepc-linux-8a103df440afea30c91ebd42e61dc644e647f4bd.tar.gz
cachepc-linux-8a103df440afea30c91ebd42e61dc644e647f4bd.zip
Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index e702cb9ffbd8..07cc743698d3 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -215,6 +215,10 @@ static unsigned long *alloc_thread_stack_node(struct task_struct *tsk, int node)
if (!s)
continue;
+#ifdef CONFIG_DEBUG_KMEMLEAK
+ /* Clear stale pointers from reused stack. */
+ memset(s->addr, 0, THREAD_SIZE);
+#endif
tsk->stack_vm_area = s;
return s->addr;
}