linux-kernel - Re: [REGRESSION] coredumps truncated after "new helper: dump

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: <20131116000408.GK13318@ZenIV.linux.org.uk>
Date:	Sat, 16 Nov 2013 00:04:08 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Peter Wu <lekensteyn@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION] coredumps truncated after "new helper: dump_align()"

On Fri, Nov 15, 2013 at 10:34:43PM +0100, Peter Wu wrote:

> Unfortunately, this patch still does not fix the issue. I rm'd the output 
> directory just to be sure, but the bug is still there. What does this commit 
> do anyway? The commit message is quite vague.

Introduces a helper that used to be open-coded in a bunch of places -
pads the coredump to given alignment.  And switches those places
to that new helper...

FWIW, I haven't tried that on your config yet, but here (with the patch
in my previous mail) I'm seeing a sane-looking coredump -
-rw------- 1 root root 315392 Nov 15 17:48 core
Different userland, presumably, since that static binary is 684349
bytes long.

I'll try to reproduce with your config...
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/