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From: axel.lin@ingics.com (Axel Lin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] soc: ti: knav_qmss_queue: Use list_for_each_entry_safe to prevent use after free
Date: Sat, 01 Nov 2014 13:33:13 +0800	[thread overview]
Message-ID: <1414819993.23500.1.camel@phoenix> (raw)

list_for_each_entry_safe() is necessary if list objects are deleted from
the list while traversing it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 drivers/soc/ti/knav_qmss_queue.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 6f22d56..9b8dd67 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -1306,14 +1306,14 @@ static void knav_free_queue_ranges(struct knav_device *kdev)
 static void knav_queue_free_regions(struct knav_device *kdev)
 {
 	struct knav_region *region;
-	struct knav_pool *pool;
+	struct knav_pool *pool, *tmp;
 	unsigned size;
 
 	for (;;) {
 		region = first_region(kdev);
 		if (!region)
 			break;
-		list_for_each_entry(pool, &region->pools, region_inst)
+		list_for_each_entry_safe(pool, tmp, &region->pools, region_inst)
 			knav_pool_destroy(pool);
 
 		size = region->virt_end - region->virt_start;
-- 
1.9.1

WARNING: multiple messages have this Message-ID (diff)
From: Axel Lin <axel.lin@ingics.com>
To: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Sandeep Nair <sandeep_n@ti.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH] soc: ti: knav_qmss_queue: Use list_for_each_entry_safe to prevent use after free
Date: Sat, 01 Nov 2014 13:33:13 +0800	[thread overview]
Message-ID: <1414819993.23500.1.camel@phoenix> (raw)

list_for_each_entry_safe() is necessary if list objects are deleted from
the list while traversing it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 drivers/soc/ti/knav_qmss_queue.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 6f22d56..9b8dd67 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -1306,14 +1306,14 @@ static void knav_free_queue_ranges(struct knav_device *kdev)
 static void knav_queue_free_regions(struct knav_device *kdev)
 {
 	struct knav_region *region;
-	struct knav_pool *pool;
+	struct knav_pool *pool, *tmp;
 	unsigned size;
 
 	for (;;) {
 		region = first_region(kdev);
 		if (!region)
 			break;
-		list_for_each_entry(pool, &region->pools, region_inst)
+		list_for_each_entry_safe(pool, tmp, &region->pools, region_inst)
 			knav_pool_destroy(pool);
 
 		size = region->virt_end - region->virt_start;
-- 
1.9.1




             reply	other threads:[~2014-11-01  5:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-01  5:33 Axel Lin [this message]
2014-11-01  5:33 ` [PATCH] soc: ti: knav_qmss_queue: Use list_for_each_entry_safe to prevent use after free Axel Lin
2014-11-03 18:27 ` santosh.shilimkar@oralce.com
2014-11-03 18:27   ` santosh.shilimkar@oralce.com

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