oss-sec mailing list archives

Re: Local information disclosure in apport and systemd-coredump


From: Zbigniew Jędrzejewski-Szmek <zbyszek () in waw pl>
Date: Tue, 10 Jun 2025 07:06:58 +0000

Hi Alexander,

On Fri, Jun 06, 2025 at 03:20:27AM +0200, Solar Designer wrote:
In your message to linux-distros, you shared these two patches:

0001-coredump-get-rid-of-_META_MANDATORY_MAX.patch
0003-coredump-also-stop-forwarding-non-dumpable-processes.patch

So it looks like you omitted patch number 2.  Yet to me that omitted
patch would have been the most important part of the fix.  Was this
omission inadvertent, or am I missing some reason to skip that patch?

Hmmm, the mail I see here in my mail folder has the middle patch too
(Message-ID: <aDRxuOl3_j0infhz () kawka3 in waw pl>). I'm not subscribed
to linux-distros so I didn't see the message as it was received on
the mailing list.

I think it's these 3 commits (as they appear in the main branch, and I
see equivalent ones are also in v257-stable and v256-stable):
commit 8fc7b2a211eb13ef1a94250b28e1c79cab8bdcb9
commit 0c49e0049b7665bb7769a13ef346fef92e1ad4d6
commit 49f1f2d4a7612bbed5211a73d11d6a94fbe3bb69

Yep, that's correct.

As you can see, we made a bunch of follow-up later on. But those
three patches are enough to resolve the issue.

Zbyszek


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