From: Zqiang <qiang.zhang1211@gmail.com> stable inclusion from stable-v4.19.322 commit 2d6a7a1ee3862d129c0e0fbd3cc147e185a379dc category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAYQRI CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 77aeb1b685f9db73d276bad4bb30d48505a6fd23 ] For CONFIG_DEBUG_OBJECTS_WORK=y kernels sscs.work defined by INIT_WORK_ONSTACK() is initialized by debug_object_init_on_stack() for the debug check in __init_work() to work correctly. But this lacks the counterpart to remove the tracked object from debug objects again, which will cause a debug object warning once the stack is freed. Add the missing destroy_work_on_stack() invocation to cure that. [ tglx: Massaged changelog ] Signed-off-by: Zqiang <qiang.zhang1211@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Paul E. McKenney <paulmck@kernel.org> Link: https://lore.kernel.org/r/20240704065213.13559-1-qiang.zhang1211@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> --- kernel/smp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/smp.c b/kernel/smp.c index be15d3a57954..826d6905112e 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -791,6 +791,7 @@ int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, bool phys) queue_work_on(cpu, system_wq, &sscs.work); wait_for_completion(&sscs.done); + destroy_work_on_stack(&sscs.work); return sscs.ret; } -- 2.20.1