Home / mailings [slackware-security] kernel (SSA:2025-255-02)
Posted on 13 September 2025
Slackware Security[slackware-security] kernel (SSA:2025-255-02)
New kernel packages are available for Slackware 15.0 to fix security issues.
Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/kernel-firmware-20250912_f0f4634-noarch-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-generic-5.15.193-i586-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-generic-smp-5.15.193_smp-i686-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-headers-5.15.193_smp-x86-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-huge-5.15.193-i586-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-huge-smp-5.15.193_smp-i686-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-modules-5.15.193-i586-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-modules-smp-5.15.193_smp-i686-1.txz: Upgraded.
patches/packages/linux-5.15.193/kernel-source-5.15.193_smp-noarch-1.txz: Upgraded.
These updates fix various bugs and security issues.
Includes a mitigation for the VMScape flaw that's been in the news lately.
Be sure to upgrade your initrd after upgrading the kernel packages.
If you use lilo to boot your machine, be sure lilo.conf points to the correct
kernel and initrd and run lilo as root to update the bootloader.
If you use elilo to boot your machine, you should run eliloconfig to copy the
kernel and initrd to the EFI System Partition.
For more information, see:
https://www.cve.org/CVERecord?id=CVE-2025-40300
(* Security fix *)
+--------------------------+
Where to find the new packages:
+-----------------------------+
Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)
Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.
Updated packages for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/kernel-firmware-20250912_f0f4634-noarch-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-generic-5.15.193-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-generic-smp-5.15.193_smp-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-headers-5.15.193_smp-x86-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-huge-5.15.193-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-huge-smp-5.15.193_smp-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-modules-5.15.193-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-modules-smp-5.15.193_smp-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/linux-5.15.193/kernel-source-5.15.193_smp-noarch-1.txz
Updated packages for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/kernel-firmware-20250912_f0f4634-noarch-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/linux-5.15.193/kernel-generic-5.15.193-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/linux-5.15.193/kernel-headers-5.15.193-x86-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/linux-5.15.193/kernel-huge-5.15.193-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/linux-5.15.193/kernel-modules-5.15.193-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/linux-5.15.193/kernel-source-5.15.193-noarch-1.txz
MD5 signatures:
+-------------+
Slackware 15.0 packages:
2f82b985becc4567d4a6888de01d095c kernel-firmware-20250912_f0f4634-noarch-1.txz
347999fdbb6070b909d309184ccb6c60 kernel-generic-5.15.193-i586-1.txz
8c0f545c68e5743556445aac3a179f5b kernel-generic-smp-5.15.193_smp-i686-1.txz
c996168db47745dbebd7ffbe1b021581 kernel-headers-5.15.193_smp-x86-1.txz
ff4e2afff33fce05fee6a104285e33ec kernel-huge-5.15.193-i586-1.txz
7b6474753e994fb9ad47794c11c0f639 kernel-huge-smp-5.15.193_smp-i686-1.txz
ff523deef6341a3e62a9b3fc21f983a2 kernel-modules-5.15.193-i586-1.txz
da0d4df8555833759c4790a9ac369f0a kernel-modules-smp-5.15.193_smp-i686-1.txz
dbc0962f5c055aed845ea88b554894f5 kernel-source-5.15.193_smp-noarch-1.txz
Slackware x86_64 15.0 packages:
2f82b985becc4567d4a6888de01d095c kernel-firmware-20250912_f0f4634-noarch-1.txz
a4fc5164fb3dd681ba02c8f00f3299b0 kernel-generic-5.15.193-x86_64-1.txz
fd9c870a5fba80081ed4ed138cf98447 kernel-headers-5.15.193-x86-1.txz
39f443ab3700ee73065f7556e6c33c86 kernel-huge-5.15.193-x86_64-1.txz
d0977f25079e93804399435237e62968 kernel-modules-5.15.193-x86_64-1.txz
6712d96c3a859c21aee8dd4660ae9321 kernel-source-5.15.193-noarch-1.txz
Installation instructions:
+------------------------+
Upgrade the packages as root:
# upgradepkg kernel-*.txz
If you are using an initrd, you'll need to rebuild it.
For a 32-bit SMP machine, use this command (substitute the appropriate
kernel version if you are not running Slackware 15.0):
# /usr/share/mkinitrd/mkinitrd_command_generator.sh -k 5.15.193-smp | bash
For a 64-bit machine, or a 32-bit uniprocessor machine, use this command
(substitute the appropriate kernel version if you are not running
Slackware 15.0):
# /usr/share/mkinitrd/mkinitrd_command_generator.sh -k 5.15.193 | bash
Please note that "uniprocessor" has to do with the kernel you are running,
not with the CPU. Most systems should run the SMP kernel (if they can)
regardless of the number of cores the CPU has. If you aren't sure which
kernel you are running, run "uname -a". If you see SMP there, you are
running the SMP kernel and should use the 5.15.193-smp version when running
mkinitrd_command_generator. Note that this is only for 32-bit -- 64-bit
systems should always use 5.15.193 as the version.
If you are using lilo or elilo to boot the machine, you'll need to ensure
that the machine is properly prepared before rebooting.
If using LILO:
By default, lilo.conf contains an image= line that references a symlink
that always points to the correct kernel. No editing should be required
unless your machine uses a custom lilo.conf. If that is the case, be sure
that the image= line references the correct kernel file. Either way,
you'll need to run "lilo" as root to reinstall the boot loader.
If using elilo:
Ensure that the /boot/vmlinuz symlink is pointing to the kernel you wish
to use, and then run eliloconfig to update the EFI System Partition.
+-----+
Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com
