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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4011.1664837894@jrobl>
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