Messages in this thread | | | Date | Fri, 9 Oct 2020 19:25:09 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH 1/6] mm: mmap: fix fput in error path |
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On Fri, Oct 09, 2020 at 03:04:20PM -0700, Andrew Morton wrote: > On Fri, 9 Oct 2020 17:03:37 +0200 "Christian König" <ckoenig.leichtzumerken@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?
Same basic issue, looks like both of these patches should be combined to plug it fully.
Jason
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