[PATCH 1/6] mm: mmap: fix fput in error path

Andrew Morton akpm at linux-foundation.org
Fri Oct 9 22:04:20 UTC 2020


On Fri,  9 Oct 2020 17:03:37 +0200 "Christian König" <ckoenig.leichtzumerken at gmail.com> wrote:

> Patch "495c10cc1c0c CHROMIUM: dma-buf: restore args..."
> adds a workaround for a bug in mmap_region.
> 
> As the comment states ->mmap() callback can change
> vma->vm_file and so we might call fput() on the wrong file.
> 
> Revert the workaround and proper fix this in mmap_region.
> 

Doesn't this patch series address the same thing as
https://lkml.kernel.org/r/20200916090733.31427-1-linmiaohe@huawei.com?



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