linux-kernel - [PATCH] PM / OPP: Handle return value of kasprintf

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: <15cec6eac63ffc9f12f1d16aff913eccad670f77.1505817563.git.arvind.yadav.cs@gmail.com>
Date:   Wed, 20 Sep 2017 12:29:13 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     vireshk@...nel.org, nm@...com, sboyd@...eaurora.org,
        rjw@...ysocki.net, pavel@....cz, len.brown@...el.com,
        gregkh@...uxfoundation.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] PM / OPP: Handle return value of kasprintf

kasprintf() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/base/power/opp/debugfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/base/power/opp/debugfs.c b/drivers/base/power/opp/debugfs.c
index 81cf120..226d6ae 100644
--- a/drivers/base/power/opp/debugfs.c
+++ b/drivers/base/power/opp/debugfs.c
@@ -45,7 +45,8 @@ static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
 
 	for (i = 0; i < opp_table->regulator_count; i++) {
 		name = kasprintf(GFP_KERNEL, "supply-%d", i);
-
+		if (!name)
+			return false;
 		/* Create per-opp directory */
 		d = debugfs_create_dir(name, pdentry);
 
-- 
1.9.1