This patch switch to use kvmalloc_array() for using a vmalloc()
fallback to help in case kmalloc() fails.
Reported-by: syzbot+e4d4f9ddd42955397...@syzkaller.appspotmail.com
Fixes: 2e0ab8ca83c12 ("ptr_ring: array based FIFO for pointers")
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
include/linux/ptr_ring.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h
index 1883d61..9c3b748 100644
--- a/include/linux/ptr_ring.h
+++ b/include/linux/ptr_ring.h
@@ -466,7 +466,7 @@ static inline int ptr_ring_consume_batched_bh(struct
ptr_ring *r,
static inline void **__ptr_ring_init_queue_alloc(unsigned int size, gfp_t gfp)
{
- return kcalloc(size, sizeof(void *), gfp);
+ return kvmalloc_array(size, sizeof(void *), gfp | __GFP_ZERO);
}
static inline void __ptr_ring_set_size(struct ptr_ring *r, int size)
--
2.7.4
