Date: Fri, 22 Jan 2021 16:52:19 +0530 (IST) From: P J P <ppandit@...hat.com> To: oss security list <oss-security@...ts.openwall.com> Subject: Re: CVE-2020-35517 QEMU: virtiofsd: potential privileged host device access from guest +-- On Fri, 22 Jan 2021, Daniel Walsh wrote --+ | Did SELinux block this flaw? * Not sure if there's a SELinux policy to block it. Didn't have a reproducer handy. | Seems virtiofsd should be running without CAP_MKNOD by default. * Yes, there's an issue for nodev -> https://gitlab.com/virtio-fs/qemu/-/issues/24 virtiofsd(1) also supports '-o modcaps=-mknod' option, it's not default though. Thank you. -- Prasad J Pandit / Red Hat Product Security Team 8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D
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