I think when the description is freed, it maybe used again because of race, then it's next maybe pointer a value that should not be freed To prevent this, list_for_each_entry_safe should be used. Signed-off-by: Li RongQing <lirongqing@xxxxxxxxx> --- drivers/dma/idxd/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/idxd/irq.c b/drivers/dma/idxd/irq.c index 8dc029c..0c7fed7 100644 --- a/drivers/dma/idxd/irq.c +++ b/drivers/dma/idxd/irq.c @@ -611,7 +611,7 @@ static void irq_process_work_list(struct idxd_irq_entry *irq_entry) spin_unlock(&irq_entry->list_lock); - list_for_each_entry(desc, &flist, list) { + list_for_each_entry_safe(desc, n, &flist, list) { /* * Check against the original status as ABORT is software defined * and 0xff, which DSA_COMP_STATUS_MASK can mask out. -- 2.9.4