Month: July 2019

HAMMER2 now default

This slipped in just before the 5.6 release, and I thought I had already noted it: DragonFly now defaults to HAMMER2 for disks during install, instead of HAMMER1.

A ps tip

If you want to see all running threads on your system, grouped by process, with who ran it and how much memory it’s taking, it’s easy: ps -alxRH.
I mention this because it’s easier to remember ‘alxRH’ than it is to find al…

Lazy Reading for 2019/07/28

I get indirectly cranky, this week. Dungeon Generation in Diablo 1.  Roguelike!  (via) Pressing Forward.  “The grassroots mechanical keyboard scene”.  I did not know about the Hall Effect, or the X1 keyboard, both of which are interesting. sc-im, a terminal spreadsheet.  Like Visicalc all over again! Design tools are holding us back.  I like the …

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Several layers of radeon update

Francois Tigeot has updated the radeon driver in DragonFly to match what’s in Linux kernel 3.19.8.  No, wait, I took too long to post this cause there’s been so many things, so now it’s up to 4.4.180.

Am I in jail?

There’s now a read-only sysctl ‘jail.jailed’ that can be checked to see if the current environment is running within a jail; useful for scripts that should not run in that environment, etc.  I link to it mostly because it’s an odd sort of meta-signifier of reality, like being awake or in a waking dream, and …

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[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:17.fd

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FreeBSD-SA-19:17.fd Security Advisory
The FreeBSD Project

Topic: File description reference count leak

Category: core
Module: unix
Announced: 2019-07-24
Credits: Mark Johnston
Affects: All supported versions of FreeBSD.
Corrected: 2019-07-22 19:25:05 UTC (stable/12, 12.0-STABLE)
2019-07-24 12:57:49 UTC (releng/12.0, 12.0-RELEASE-p8)
2019-07-22 19:27:23 UTC (stable/11, 11.2-STABLE)
2019-07-24 12:57:49 UTC (releng/11.2, 11.2-RELEASE-p12)
2019-07-24 12:57:49 UTC (releng/11.3, 11.3-RELEASE-p1)

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[FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-19:13.mds

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FreeBSD-EN-19:13.mds Errata Notice
The FreeBSD Project

Topic: Kernel panic from Intel CPU vulnerability mitigation

Category: core
Module: kernel
Announced: 2019-07-24
Credits: Schuendehuette, Matthias
All supported versions of FreeBSD.
Corrected: 2019-07-14 05:40:03 UTC (stable/12, 12.0-STABLE)
2019-07-24 12:50:46 UTC (releng/12.0, 12.0-RELEASE-p8)
2019-07-14 05:41:43 UTC (stable/11, 11.2-STABLE)
2019-07-24 12:50:46 UTC (releng/11.2, 11.2-RELEASE-p12)
2019-07-24 12:50:46 UTC (releng/11.3,

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[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:16.bhyve

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FreeBSD-SA-19:16.bhyve Security Advisory
The FreeBSD Project

Topic: Bhyve out-of-bounds read in XHCI device

Category: core
Module: bhyve
Announced: 2019-07-24
Credits: Reno Robert
Affects: All supported versions of FreeBSD.
Corrected: 2019-07-23 17:48:37 UTC (stable/12, 12.0-STABLE)
2019-07-24 12:56:06 UTC (releng/12.0, 12.0-RELEASE-p8)
2019-07-23 17:48:37 UTC (stable/11, 11.2-STABLE)
2019-07-24 12:56:06 UTC (releng/11.2, 11.2-RELEASE-p12)
2019-07-24 12:56:06 UTC (releng/11.3,

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[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:15.mqueuefs

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FreeBSD-SA-19:15.mqueuefs Security Advisory
The FreeBSD Project

Topic: Reference count overflow in mqueue filesystem

Category: core
Module: kernel
Announced: 2019-07-24
Credits: Mateusz Guzik
Affects: All supported versions of FreeBSD.
Corrected: 2019-07-23 21:12:32 UTC (stable/12, 12.0-STABLE)
2019-07-24 12:55:16 UTC (releng/12.0, 12.0-RELEASE-p8)
2019-07-23 21:15:28 UTC (stable/11, 11.2-STABLE)
2019-07-24 12:55:16 UTC (releng/11.2, 11.2-RELEASE-p12)
2019-07-24 12:55:16 UTC (releng/11.3,

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[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:14.freebsd32

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FreeBSD-SA-19:14.freebsd32 Security Advisory
The FreeBSD Project

Topic: Kernel memory disclosure in freebsd32_ioctl

Category: core
Module: kernel
Announced: 2019-07-24
Credits: Ilja van Sprundel, IOActive
Affects: FreeBSD 11.2 and FreeBSD 11.3
Corrected: 2019-07-22 18:14:34 UTC (stable/11, 11.2-STABLE)
2019-07-24 12:54:10 UTC (releng/11.2, 11.2-RELEASE-p12)
2019-07-24 12:54:10 UTC (releng/11.3, 11.3-RELEASE-p1)
CVE Name: CVE-2019-5605

For general information regarding FreeBSD

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[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:13.pts

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FreeBSD-SA-19:13.pts Security Advisory
The FreeBSD Project

Topic: pts(4) write-after-free

Category: core
Module: kernel
Announced: 2019-07-24
Credits: syzkaller
Affects: All supported versions of FreeBSD.
Corrected: 2019-07-07 14:19:46 UTC (stable/12, 12.0-STABLE)
2019-07-24 12:53:06 UTC (releng/12.0, 12.0-RELEASE-p8)
2019-07-07 14:20:14 UTC (stable/11, 11.2-STABLE)
2019-07-24 12:53:06 UTC (releng/11.2, 11.2-RELEASE-p12)
2019-07-24 12:53:06 UTC (releng/11.3, 11.3-RELEASE-p1)
CVE Name: CVE-2019-5606

For

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A small rconfig update

Aaron LI’s fixed a bug in rconfig tag names.  This is minor, but I think rconfig(8) is a very powerful and underappreciated utility, so I point it out whenever possible.

First time dbus reminder

I’ve mentioned dbus and DragonFly a few times; here’s one of those “you will eventually do this” tidbits: if for some reason you are installing it for the first time, remember to start it with the rc script.

Lazy Reading for 2019/07/21

Accidental theme: heavy metal. A literary appreciation of the Olson/Zoneinfo/tz database.  Found while researching tz formats. Buster Keaton: slapstick anarchism.  A continuation of an article I linked before. An Illustrated history of Easter Eggs.  Delightful!  (video, via) crontab converter for different time zones in unix? lowRISC has open source-related job openings. History and effective use …

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