July 2026 - AlmaLinux Users - AlmaLinux List Archives

Re: VirtualBox kernel modules fail to build
by Akemi Yagi 13 Jul '26

13 Jul '26

On Mon, Jul 13, 2026 at 4:34 AM John Thompson via AlmaLinux Users <users(a)lists.almalinux.org> wrote: > > I'm trying to update my VirtualBox installation to > VirtualBox-7.2-7.2.12_174389_el9-1.x86_64.rpm on my Almalinux-9.8 > machine, but the kernel modules fail to build. Here is the tail of the > log file: > > CC [M] /usr/src/vboxhost/vboxdrv/combined-os-specific.o > In file included from /usr/src/vboxhost/vboxdrv/combined-os-specific.c:43: > /usr/src/vboxhost/vboxdrv/r0drv/linux/fileio-r0drv-linux.c: In function > ‘VBoxHost_RTFileOpen’: > /usr/src/vboxhost/vboxdrv/r0drv/linux/fileio-r0drv-linux.c:162:30: > error: implicit declaration of function ‘open_with_fake_path’ > [-Werror=implicit-function-declaration] > 162 | struct file *pFile = open_with_fake_path(&Path, fOpenMode, > d_inode(Path.dentry), current_cred()); > | ^~~~~~~~~~~~~~~~~~~ > /usr/src/vboxhost/vboxdrv/r0drv/linux/fileio-r0drv-linux.c:162:30: > warning: initialization of ‘struct file *’ from ‘int’ makes pointer from > integer without a cast [-Wint-conversion] > cc1: some warnings being treated as errors > make[3]: *** [scripts/Makefile.build:250: > /usr/src/vboxhost/vboxdrv/combined-os-specific.o] Error 1 > make[3]: *** Waiting for unfinished jobs.... > make[2]: *** [Makefile:1968: /usr/src/vboxhost/vboxdrv] Error 2 > make[2]: Leaving directory '/usr/src/kernels/5.14.0-687.20.1.el9_8.x86_64' > make[1]: *** [/usr/src/vboxhost/vboxdrv/Makefile-footer.gmk:146: > vboxdrv] Error 2 > make[1]: Leaving directory '/usr/src/vboxhost/vboxdrv' > make: *** [Makefile:78: vboxdrv] Error 2 > > Any ideas? > > -- > > -John (JohnDThompson(a)gmail.com) > Appleton, WI USA Try this solution/workaround: https://forums.rockylinux.org/t/virtualbox-7-1-rocky-9-8/20579/6 Akemi

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VirtualBox kernel modules fail to build
by John Thompson 13 Jul '26

13 Jul '26

I'm trying to update my VirtualBox installation to VirtualBox-7.2-7.2.12_174389_el9-1.x86_64.rpm on my Almalinux-9.8 machine, but the kernel modules fail to build. Here is the tail of the log file: CC [M] /usr/src/vboxhost/vboxdrv/combined-os-specific.o In file included from /usr/src/vboxhost/vboxdrv/combined-os-specific.c:43: /usr/src/vboxhost/vboxdrv/r0drv/linux/fileio-r0drv-linux.c: In function ‘VBoxHost_RTFileOpen’: /usr/src/vboxhost/vboxdrv/r0drv/linux/fileio-r0drv-linux.c:162:30: error: implicit declaration of function ‘open_with_fake_path’ [-Werror=implicit-function-declaration] 162 | struct file *pFile = open_with_fake_path(&Path, fOpenMode, d_inode(Path.dentry), current_cred()); | ^~~~~~~~~~~~~~~~~~~ /usr/src/vboxhost/vboxdrv/r0drv/linux/fileio-r0drv-linux.c:162:30: warning: initialization of ‘struct file *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] cc1: some warnings being treated as errors make[3]: *** [scripts/Makefile.build:250: /usr/src/vboxhost/vboxdrv/combined-os-specific.o] Error 1 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [Makefile:1968: /usr/src/vboxhost/vboxdrv] Error 2 make[2]: Leaving directory '/usr/src/kernels/5.14.0-687.20.1.el9_8.x86_64' make[1]: *** [/usr/src/vboxhost/vboxdrv/Makefile-footer.gmk:146: vboxdrv] Error 2 make[1]: Leaving directory '/usr/src/vboxhost/vboxdrv' make: *** [Makefile:78: vboxdrv] Error 2 Any ideas? -- -John (JohnDThompson(a)gmail.com) Appleton, WI USA

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GhostLock (CVE-2026-43499) kernel LPE - patched kernels in testing repo now
by Jonathan Wright 09 Jul '26

09 Jul '26

Hello AlmaLinux Community! It's me again! Patched kernels for GhostLock (CVE-2026-43499), a newly disclosed Linux kernel local privilege escalation, are available in the almalinux-testing repository right now, and we need your help verifying them before we promote them to production. WHY THIS MATTERS GhostLock is a use-after-free in the kernel's rtmutex priority inheritance code. An unprivileged local user can exploit it to gain root, and it works from inside a container to escape to the host. No special capabilities are required, and all supported AlmaLinux releases (8, 9, and 10) are affected. The bug has been present in the kernel since 2011. Our core team has backported the upstream fix to every affected branch, and ALESCo approved shipping ahead of the CentOS Stream / RHEL update. Community testing is what gets these kernels safely into production, so please help if you can. HOW TO TEST 1. Install the testing repo: sudo dnf install -y almalinux-release-testing 2. Update the kernel: sudo dnf update 'kernel*' --enablerepo=almalinux-testing 3. Reboot: sudo reboot 4. Confirm the patched kernel is running: uname -r rpm -q kernel Patched versions (or higher): AlmaLinux 8: kernel-4.18.0-553.141.2.el8_10 AlmaLinux 9: kernel-5.14.0-687.23.2.el9_8 AlmaLinux 10: kernel-6.12.0-211.31.2.el10_2 Unless this is a non-production environment, we recommend disabling the testing repo once you've updated: sudo dnf config-manager --disable almalinux-testing REPORT RESULTS Whether things work or break, we want to hear from you as soon as possible: - AlmaLinux Chat: https://chat.almalinux.org - Bug tracker: https://bugs.almalinux.org Full technical details, including how the vulnerability works, are in the blog post: https://almalinux.org/blog/2026-07-09-ghostlock/ Thank you for helping us keep AlmaLinux secure!

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Re: Almalinux-9.8 speed problem
by Jonathan Wright 06 Jul '26

06 Jul '26

John, Testing with speedtest isn't going to be too reliable. I'd suggest an internal network test like iperf3 between local machines to rule out outside factors (the internet). On Fri, Jul 3, 2026 at 6:32 AM John Thompson via AlmaLinux Users < users(a)lists.almalinux.org> wrote: > My almalinux-9.8 desktop machine has suddenly suffered a severe network > (wired connection) slowdown. My ubuntu-24 laptop on the same network > (wifi connection) is much faster. This only happened recently: > > Almalinux-9.8 (wired) > speedtest-cli > Retrieving speedtest.net configuration... > Testing from Spectrum (74.135.192.205)... > Retrieving speedtest.net server list... > Selecting best server based on ping... > Hosted by 5NINES LLC (Madison, WI) [155.45 km]: 120.835 ms > Testing download > > speed................................................................................ > Download: 5.47 Mbit/s > Testing upload > > speed...................................................................................................... > Upload: 18.46 Mbit/s > > > Ubuntu-24 (wifi) > spedtest-cli > Retrieving speedtest.net configuration... > Testing from Spectrum (74.135.192.205)... > Retrieving speedtest.net server list... > Selecting best server based on ping... > Hosted by 5NINES LLC (Madison, WI) [155.45 km]: 44.175 ms > Testing download > > speed................................................................................ > Download: 193.94 Mbit/s > Testing upload > > speed...................................................................................................... > Upload: 21.31 Mbit/s > > Any ideas? > > > > -- > > -John (JohnDThompson(a)gmail.com) > Appleton, WI USA > > _______________________________________________ > AlmaLinux Users mailing list -- users(a)lists.almalinux.org > To unsubscribe send an email to users-leave(a)lists.almalinux.org > -- Jonathan Wright AlmaLinux OS Foundation Mattermost: chat <https://chat.almalinux.org/almalinux/messages/@jonathan>

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Almalinux-9.8 speed problem
by John Thompson 03 Jul '26

03 Jul '26

My almalinux-9.8 desktop machine has suddenly suffered a severe network (wired connection) slowdown. My ubuntu-24 laptop on the same network (wifi connection) is much faster. This only happened recently: Almalinux-9.8 (wired) speedtest-cli Retrieving speedtest.net configuration... Testing from Spectrum (74.135.192.205)... Retrieving speedtest.net server list... Selecting best server based on ping... Hosted by 5NINES LLC (Madison, WI) [155.45 km]: 120.835 ms Testing download speed................................................................................ Download: 5.47 Mbit/s Testing upload speed...................................................................................................... Upload: 18.46 Mbit/s Ubuntu-24 (wifi) spedtest-cli Retrieving speedtest.net configuration... Testing from Spectrum (74.135.192.205)... Retrieving speedtest.net server list... Selecting best server based on ping... Hosted by 5NINES LLC (Madison, WI) [155.45 km]: 44.175 ms Testing download speed................................................................................ Download: 193.94 Mbit/s Testing upload speed...................................................................................................... Upload: 21.31 Mbit/s Any ideas? -- -John (JohnDThompson(a)gmail.com) Appleton, WI USA

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