lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20220917014746.3828349-1-floridsleeves@gmail.com>
Date:   Fri, 16 Sep 2022 18:47:46 -0700
From:   Li Zhong <floridsleeves@...il.com>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        bpf@...r.kernel.org
Cc:     namhyung@...nel.org, jolsa@...nel.org,
        alexander.shishkin@...ux.intel.com, mark.rutland@....com,
        acme@...nel.org, mingo@...hat.com, peterz@...radead.org,
        Li Zhong <floridsleeves@...il.com>
Subject: [PATCH v1] kernel/events/core: check return value of task_function_call()

Check the return value of task_function_call(), which could be error
code when the execution fails.

Signed-off-by: Li Zhong <floridsleeves@...il.com>
---
 kernel/events/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2621fd24ad26..ac0cf611b12a 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -13520,7 +13520,8 @@ static void perf_cgroup_attach(struct cgroup_taskset *tset)
 	struct cgroup_subsys_state *css;
 
 	cgroup_taskset_for_each(task, css, tset)
-		task_function_call(task, __perf_cgroup_move, task);
+		if (!task_function_call(task, __perf_cgroup_move, task))
+			return;
 }
 
 struct cgroup_subsys perf_event_cgrp_subsys = {
-- 
2.25.1

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ