Commit ddb8c45b authored by Sasha Levin's avatar Sasha Levin Committed by Benjamin LaHaise
Browse files

aio: nullify aio->ring_pages after freeing it



After freeing ring_pages we leave it as is causing a dangling pointer. This
has already caused an issue so to help catching any issues in the future
NULL it out.
Signed-off-by: default avatarSasha Levin <sasha.levin@oracle.com>
Signed-off-by: default avatarBenjamin LaHaise <bcrl@kvack.org>
parent d5580232
......@@ -196,8 +196,10 @@ static void aio_free_ring(struct kioctx *ctx)
put_aio_ring_file(ctx);
if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages)
if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages) {
kfree(ctx->ring_pages);
ctx->ring_pages = NULL;
}
}
static int aio_ring_mmap(struct file *file, struct vm_area_struct *vma)
......
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