From mboxrd@z Thu Jan 1 00:00:00 1970 From: axel.lin@ingics.com (Axel Lin) Date: Sat, 01 Nov 2014 13:33:13 +0800 Subject: [PATCH] soc: ti: knav_qmss_queue: Use list_for_each_entry_safe to prevent use after free Message-ID: <1414819993.23500.1.camel@phoenix> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org list_for_each_entry_safe() is necessary if list objects are deleted from the list while traversing it. Signed-off-by: Axel Lin --- 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, ®ion->pools, region_inst) + list_for_each_entry_safe(pool, tmp, ®ion->pools, region_inst) knav_pool_destroy(pool); size = region->virt_end - region->virt_start; -- 1.9.1