New servers, new tech

Following up on an earlier post, the new servers for DragonFly are in place.  The old 40-core machine used for bulk build, monster, is being retired.  The power efficiency of the new machines is startling.  Incidentally, this is where donations go &#82…

[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:23.midi [REVISED]

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FreeBSD-SA-19:23.midi Security Advisory
The FreeBSD Project

Topic: kernel memory disclosure from /dev/midistat

Category: core
Module: sound
Announced: 2019-08-20
Credits: Peter Holm, Mark Johnston
Affects: All supported versions of FreeBSD.
Corrected: 2019-08-20 17:53:16 UTC (stable/12, 12.0-STABLE)
2019-08-20 17:50:33 UTC (releng/12.0, 12.0-RELEASE-p10)
2019-08-20 17:54:18 UTC (stable/11, 11.3-STABLE)
2019-08-20 17:50:33 UTC (releng/11.3, 11.3-RELEASE-p3)
2019-08-20 17:50:33 UTC

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BSD Now 312: Why Package Managers

This week’s BSD Now covers a lot of topics, including linking to a gentle explanation of package management, which surely no reader here needs to have explained?  Well, you are covered if so.

A CVE fixed but still hidden

Here’s something I haven’t see before: at the time of me typing this, there are commits in DragonFly, FreeBSD, and I assume NetBSD (haven’t found the commit), but the 2019-5612 CVE entry is still shown as reserved and not public.  Thi…

[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:24.mqueuefs

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FreeBSD-SA-19:24.mqueuefs Security Advisory
The FreeBSD Project

Topic: Reference count overflow in mqueue filesystem 32-bit compat

Category: core
Module: kernel
Announced: 2019-08-20
Credits: Karsten König, Secfault Security
Affects: All supported versions of FreeBSD.
Corrected: 2019-08-20 17:45:22 UTC (stable/12, 12.0-STABLE)
2019-08-20 17:51:32 UTC (releng/12.0, 12.0-RELEASE-p10)
2019-08-20 17:46:22 UTC (stable/11, 11.3-STABLE)
2019-08-20 17:51:32 UTC (releng/11.3, 11.3-RELEASE-p3)

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[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:23.midi

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FreeBSD-SA-19:23.midi Security Advisory
The FreeBSD Project

Topic: kernel memory disclosure from /dev/midistat

Category: core
Module: sound
Announced: 2019-08-20
Credits: Peter Holm, Mark Johnston
Affects: All supported versions of FreeBSD.
Corrected: 2019-08-20 17:53:16 UTC (stable/12, 12.0-STABLE)
2019-08-20 17:50:33 UTC (releng/12.0, 12.0-RELEASE-p10)
2019-08-20 17:54:18 UTC (stable/11, 11.3-STABLE)
2019-08-20 17:50:33 UTC (releng/11.3, 11.3-RELEASE-p3)
2019-08-20 17:50:33 UTC

(Read more...)

[FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-19:22.mbuf

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FreeBSD-SA-19:22.mbuf Security Advisory
The FreeBSD Project

Topic: IPv6 remote Denial-of-Service

Category: kernel
Module: net
Announced: 2019-08-20
Credits: Clement Lecigne
Affects: All supported versions of FreeBSD.
Corrected: 2019-08-10 00:01:25 UTC (stable/12, 12.0-STABLE)
2019-08-20 17:49:33 UTC (releng/12.0, 12.0-RELEASE-p10)
2019-08-10 00:02:45 UTC (stable/11, 11.3-STABLE)
2019-08-20 17:49:33 UTC (releng/11.3, 11.3-RELEASE-p3)
2019-08-20 17:49:33 UTC (releng/11.2, 11.2-RELEASE-p14)
CVE Name:

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[FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-19:17.ipfw

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FreeBSD-EN-19:17.ipfw Errata Notice
The FreeBSD Project

Topic: ipfw(8) jail keyword broken prior to jail startup

Category: core
Module: ipfw
Announced: 2019-08-20
Affects: FreeBSD 11.3
Corrected: 2019-08-15 17:40:48 UTC (stable/12, 12.0-STABLE)
2019-08-15 17:40:48 UTC (stable/11, 11.3-STABLE)
2019-08-20 17:46:40 UTC (releng/11.3, 11.3-RELEASE-p3)

Note that this issue was introduced after the FreeBSD 11.2 and 12.0 releases.

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[FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-19:16.bhyve

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FreeBSD-EN-19:16.bhyve Errata Notice
The FreeBSD Project

Topic: Bhyve instruction emulation improvements (opcode 03H and F7H)

Category: core
Module: bhyve
Announced: 2019-08-20
Credits: John Baldwin, Jason Tubnor
Affects: All supported versions of FreeBSD.
Corrected: 2019-07-07 17:30:23 UTC (stable/12, 12.0-STABLE)
2019-08-20 17:45:44 UTC (releng/12.0, 12.0-RELEASE-p10)
2019-07-07 17:31:13 UTC (stable/11, 11.3-STABLE)
2019-08-20 17:45:44 UTC (releng/11.3, 11.3-RELEASE-p3)

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AM4 fix, Corsair fix

If you have an AM4 motherboard and also can’t EFI boot DragonFly on it, this recent change may fix that for you.
Also, if you are using a Corsair keyboard, this commit may be useful to you.

Lazy Reading for 2019/08/18

Again, way behind cause of being online only irregularly over the last week.   There’s still plenty to look at – August is made for Lazy Reading. Never fast enough.  (Scroll way down)  There’s a nonlinear payoff for software speed … for tools. Related: Fast Software, the Best Software. Also related: Performance Matters. On the flip …

Continue reading “Lazy Reading

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