linux-kernel - Re: [PATCH][CFT] [coredump] don't use __kernel_write() on kmap_local

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Date:   Tue, 04 Oct 2022 07:58:14 +0900
From:   "J. R. Okajima" <hooanon05g@...il.com>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     Ira Weiny <ira.weiny@...el.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH][CFT] [coredump] don't use __kernel_write() on kmap_local_page()

Al Viro:
> Argh....  Try this:
>
> fix coredump breakage caused by badly tested "[coredump] don't use __kernel_write() on kmap_local_page()"

Thanx, it passed my local test.


> * fix for problem that occurs on rather uncommon setups (and hadn't
> been observed in the wild) sent very late in the cycle.

If the commit was merged in RC versions, I guess someone found the
problem earlier.


J. R. Okajima