Messages in this thread | | | From | Pasha Tatashin <> | Date | Thu, 26 May 2022 14:31:06 -0400 | Subject | Re: [PATCH] mm/page_table_check: fix accessing unmapped ptep |
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> > Miaohe, please store the ptep, or maybe drop this patch entirely. > > I think it's best to fix it. I rewrote the changelog as > > : ptep is unmapped too early, so ptep could theoretically be accessed while > : it's unmapped. This might become a problem if/when CONFIG_HIGHPTE becomes > : available on riscv. > : > : Fix it by deferring pte_unmap() until page table checking is done. > > I'll retain the Fixes:. This doesn't imply cc:stable in MM, and anyone > who backports the original patchset will want to know about this fixup. Makes sense.
> And I queued a fixup for the thing Matthew noticed. Thank you Andrew.
Pasha
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