[<prev] [next>] [day] [month] [year] [list]
Message-ID: <1140246180.13859318.1522172259182.JavaMail.zimbra@redhat.com>
Date: Tue, 27 Mar 2018 13:37:39 -0400 (EDT)
From: Vladis Dronov <vdronov@...hat.com>
To: oss-security@...ts.openwall.com
Subject: CVE-2018-1091: Linux kernel: a KVM guest kernel crash during core
dump on POWER9 host
Hello,
A guest kernel crash can be triggered from unprivileged userspace during core
dump on POWER host due to a missing processor feature check and an erroneous
use of transactional memory (TM) instructions in the core dump path leading to
a denial of service.
References:
https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2
https://bugzilla.redhat.com/show_bug.cgi?id=1558149
An upstream fix:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70
Best regards,
Vladis Dronov | Red Hat, Inc. | Product Security Engineer
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
