From e4f7171c2395fd822585e721c25e1039759ed11d Mon Sep 17 00:00:00 2001 From: James Morse Date: Fri, 17 Sep 2021 16:59:58 +0000 Subject: [PATCH] x86/resctrl: Free the ctrlval arrays when domain_setup_mon_state() fails commit 64e87d4bd3201bf8a4685083ee4daf5c0d001452 upstream. domain_add_cpu() is called whenever a CPU is brought online. The earlier call to domain_setup_ctrlval() allocates the control value arrays. If domain_setup_mon_state() fails, the control value arrays are not freed. Add the missing kfree() calls. Fixes: 1bd2a63b4f0de ("x86/intel_rdt/mba_sc: Add initialization support") Fixes: edf6fa1c4a951 ("x86/intel_rdt/cqm: Add RMID (Resource monitoring ID) management") Signed-off-by: James Morse Signed-off-by: Borislav Petkov Acked-by: Reinette Chatre Cc: Link: https://lkml.kernel.org/r/20210917165958.28313-1-james.morse@arm.com Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/resctrl/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c index e8b5f1c..4ccb903 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -590,6 +590,8 @@ static void domain_add_cpu(int cpu, struct rdt_resource *r) } if (r->mon_capable && domain_setup_mon_state(r, d)) { + kfree(d->ctrl_val); + kfree(d->mbps_val); kfree(d); return; } -- 2.7.4