linux-kernel - [PATCH 1/2] arm: Fix memleak in omap2xxx_clkt_vps

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]

Date:   Sat, 14 Nov 2020 12:06:58 +0800
From:   Youling Tang <tangyouling@...ngson.cn>
To:     Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>
Cc:     linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] arm: Fix memleak in omap2xxx_clkt_vps_init

If the clk_register fails, we should free hw before function returns to
prevent memleak.

Signed-off-by: Youling Tang <tangyouling@...ngson.cn>
---
 arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
index 2a3e722..70892b3 100644
--- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
+++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
@@ -244,6 +244,12 @@ void omap2xxx_clkt_vps_init(void)
 	hw->hw.init = &init;
 
 	clk = clk_register(NULL, &hw->hw);
+	if (IS_ERR(clk)) {
+		printk(KERN_ERR "Failed to register clock\n");
+		kfree(hw);
+		return;
+	}
+
 	clkdev_create(clk, "cpufreq_ck", NULL);
 	return;
 cleanup:
-- 
2.1.0