[SOLVED] New kernel in -current (32 bit, 64 bit) and in 14.1( 64 bit)

hitest · 02-19-2014, 10:56 PM

Upgrade time. folks.

Code:

Linux loki 3.10.30-smp #2 SMP Fri Feb 14 20:54:32 CST 2014 i686 Intel(R) Pentium(R) D CPU 2.80GHz GenuineIntel GNU/Linux

Code:

Thu Feb 20 00:30:49 UTC 2014
a/kernel-firmware-20140215git-noarch-1.txz:  Upgraded.
a/kernel-generic-3.10.30-i486-1.txz:  Upgraded.
a/kernel-generic-smp-3.10.30_smp-i686-1.txz:  Upgraded.
a/kernel-huge-3.10.30-i486-1.txz:  Upgraded.
a/kernel-huge-smp-3.10.30_smp-i686-1.txz:  Upgraded.
a/kernel-modules-3.10.30-i486-1.txz:  Upgraded.
a/kernel-modules-smp-3.10.30_smp-i686-1.txz:  Upgraded.
a/shadow-4.1.5.1-i486-3.txz:  Rebuilt.

willysr · 02-20-2014, 12:24 AM

This only applies to x86_64 architecture only, not in x86

Mark Pettit · 02-20-2014, 12:26 AM

Does anyone know if there's a really compelling case to install these ? Like a major performance boost, new feature, or security/bug fixes.

willysr · 02-20-2014, 12:41 AM

security bug fixes

Quote:

patches/packages/linux-3.10.17-2/*:
These are new kernels that fix CVE-2014-0038, a bug that can allow local
users to gain a root shell.
Be sure to reinstall LILO (run "lilo" as root) after upgrading the kernel
packages, or on UEFI systems, copy the appropriate kernel to
/boot/efi/EFI/Slackware/vmlinuz).
For more information, see:
http://cve.mitre.org/cgi-bin/cvename...=CVE-2014-0038
(* Security fix *)

ponce · 02-20-2014, 12:42 AM

as it's about CONFIG_X86_X32_ABI, related to x86 emulation (the X32 flavour) on x86_64, native 32 bit archs shouldn't be affected.

Mark Pettit · 02-20-2014, 01:53 AM

Ok - so CVE-2014-0038 is really not too critical if you're running a laptop and you're really the only user and you also know the root login password :-)

Thing of course is that every time you install a new kernely, you have to re-install virtualbox and nvidia drivers (if you use them). And run lilo. And perhaps build a new initrd if you use that too. Thus a bit of a fag unless there's something motivating.

Thanks for the answers @ponce and @willysr.

GazL · 02-20-2014, 05:15 AM

The danger is from a piggyback attack. Arbitrary code exploit in Firefox, flashplayer, java etc, or even things like xpdf, MPlayer, OpenOffice or any other app that references untrusted data, or god forbid a network facing server vulnerability, + CVE-2014-0038 = PWNED!

If you're running 64bit, do the update! It doesn't take much effort to re-run mkinitrd and /sbin/lilo.

Actually, for 14.1 users, I'd be inclined to borrow the .30 kernel from -current instead of the rebuilt .17 in patches/: lots of water under the bridge since .17 was released.

cwizardone · 02-20-2014, 08:35 AM

Quote:

Originally Posted by hitest

Upgrade time. folks.

Code:

Linux loki 3.10.30-smp #2 SMP Fri Feb 14 20:54:32 CST 2014 i686 Intel(R) Pentium(R) D CPU 2.80GHz GenuineIntel GNU/Linux

Code:

Thu Feb 20 00:30:49 UTC 2014
a/kernel-firmware-20140215git-noarch-1.txz:  Upgraded.
a/kernel-generic-3.10.30-i486-1.txz:  Upgraded.
a/kernel-generic-smp-3.10.30_smp-i686-1.txz:  Upgraded.
a/kernel-huge-3.10.30-i486-1.txz:  Upgraded.
a/kernel-huge-smp-3.10.30_smp-i686-1.txz:  Upgraded.
a/kernel-modules-3.10.30-i486-1.txz:  Upgraded.
a/kernel-modules-smp-3.10.30_smp-i686-1.txz:  Upgraded.
a/shadow-4.1.5.1-i486-3.txz:  Rebuilt.

Installed them last night and all is well.... so far, so good.

mancha · 02-20-2014, 10:35 AM

Quote:

Originally Posted by GazL

The danger is from a piggyback attack. Arbitrary code exploit in Firefox, flashplayer, java etc, or even things like xpdf, MPlayer, OpenOffice or any other app that references untrusted data, or god forbid a network facing server vulnerability, + CVE-2014-0038 = PWNED!

GazL reminds us that attackers can, and do, combine individual vulnerabilities to expand effective attack surfaces and/or amplify impact.
It's a mistake to believe you don't need to worry about CVE-2014-0038 in the single-user context.

Also, GazL's 3.10.30 recommendation highlights the wisdom in the way Pat structured the kernel deployment: 3.10.30 is available to
interested 14.1 users (via current) but they can always fall back on 3.10.17 (patched for CVE-2014-0038) should they get bitten by
kernel regressions.

--mancha

lyle_s · 02-20-2014, 09:12 PM

I find it a little disconcerting that the kernel packages I have installed now (from the original 14.1 ISO) are build -3, but the security-fixed ones are build -2.

It feels like I'm going backwards.

willysr · 02-20-2014, 09:58 PM

Yeah, i noticed the same thing, but nevertheless, it contains the fix we need

lyle_s · 02-20-2014, 10:13 PM

Just got them installed; they are indeed newer as evidenced by the build dates:

Before: Linux bowman 3.10.17 #2 SMP Wed Oct 23 16:34:38 CDT 2013 x86_64 AMD FX(tm)-8350 Eight-Core Processor AuthenticAMD GNU/Linux

After: Linux bowman 3.10.17 #1 SMP Fri Feb 14 16:39:21 CST 2014 x86_64 AMD FX(tm)-8350 Eight-Core Processor AuthenticAMD GNU/Linux

Thank you Slackware Security Team; the upgrade went as smooth as smooth can be.

GazL · 02-21-2014, 08:15 AM

Quote:

Greg Kroah-Hartman has announced the release of a new batch of stable kernels: 3.13.4, 3.12.12, 3.10.31, and 3.4.81.

heh! Typical. Always the day after.

Ivybridge owners might be interested in this one as the changelog mentions a fix for a "large performance regression", the rest mostly seems to be ARM related. I'll probably skip this one and wait for .32 (unless I get bored or anything important comes to light).

I'm a little surprised Greg hasn't EOL'd 3.12 yet with 4 releases of 3.13 out the door.

hitest · 02-22-2014, 07:44 PM

Quote:

Originally Posted by willysr

This only applies to x86_64 architecture only, not in x86

Yeah, I updated and posted too quickly without reading the changelog closely enough. Maybe ease up on the criticism a bit, okay? I think my post had some value.

mancha · 02-22-2014, 07:50 PM

@hitest: If it still allows you maybe it makes sense to edit the title so it also attracts the attention of 14.1 users
and not just current users. Maybe something like: "new kernels: 14.1 (64 bit) and current (32 & 64 bit)".

--mancha

PS Your post is fine, Pat upgraded kernels in 32 and 64 bit current.