linux-kernel - [PATCH] x86: eas should not be NULL when it is referenced

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: <20210624070442.34291-1-13145886936@163.com>
Date:   Thu, 24 Jun 2021 00:04:42 -0700
From:   13145886936@....com
To:     tglx@...utronix.de, bp@...en8.de, x86@...nel.org
Cc:     linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        gushengxian <gushengxian@...ong.com>
Subject: [PATCH] x86: eas should not be NULL when it is referenced

From: gushengxian <gushengxian@...ong.com>

"eas" should not be NULL when it is referenced.

Signed-off-by: gushengxian <gushengxian@...ong.com>
---
 arch/x86/events/intel/uncore_snbep.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index bb6eb1e5569c..836aa78cd0f3 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3826,8 +3826,10 @@ pmu_iio_set_mapping(struct intel_uncore_type *type, struct attribute_group *ag)
 
 	return 0;
 err:
-	for (; die >= 0; die--)
-		kfree(eas[die].attr.attr.name);
+	if (eas) {
+		for (; die >= 0; die--)
+			kfree(eas[die].attr.attr.name);
+	}
 	kfree(eas);
 	kfree(attrs);
 	kfree(type->topology);
-- 
2.25.1