| From | Linus Torvalds <> | Date | Mon, 15 Jun 2020 09:39:31 -0700 | Subject | Re: [PATCH 05/13] fs: check FMODE_WRITE in __kernel_write |
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On Mon, Jun 15, 2020 at 5:13 AM Christoph Hellwig <hch@lst.de> wrote: > > We still need to check if the fѕ is open write, even for the low-level > helper.
Is there actually a way to trigger something like this? I'm wondering if it's worth a WARN_ON_ONCE()?
It doesn't sound sensible to have some kernel functionality try to write to a file it didn't open for write, and sounds like a kernel bug if this case were to ever trigger..
Linus
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