Kernel Security Update — AlmaLinux 8 (ALSA-2026:45115)
This is a security release for AlmaLinux 8. Update the product on every affected server to the patched release — there is no workaround, and unpatched servers remain exposed until updated.
Fix-Befehle
EL8+ (AlmaLinux/CloudLinux/Rocky)
sudo dnf updateWas das unter einer SharedLicense-Lizenz bedeutet
Kernel flaws of this class (top severity in the notice's own data: CVSS 7.9) are local-attacker material — crashes or privilege-adjacent outcomes — so shared-hosting servers should treat this as routine-priority patching.
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: KVM: x86: Don’t (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
* kernel: xfrm single-frag length not properly limited
* kernel: dm log: fix out-of-bounds write due to …
Häufig gestellte Fragen
What does ALSA-2026:45115 fix?
Is a reboot required?
How do I apply it?
Referenzen
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