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Kernel Security Update — AlmaLinux 8 (ALSA-2026:42552)

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.

High
AlmaLinux 8

Fix Commands

EL8+ (AlmaLinux/CloudLinux/Rocky)

sudo dnf update

What this means under a SharedLicense license

Kernel flaws of this class (top severity in the notice's own data: CVSS ) are local-attacker material — crashes or privilege-adjacent outcomes — so shared-hosting servers should treat this as routine-priority patching.

aarch64 kernel-modules-4.18.0-553.146.1.el8_10.aarch64.rpm 1b395a1b74db6c5a855144b8dde5ef9ff3aadce585ab81ae0c9ee2c31c689947 aarch64 python3-perf-4.18.0-553.146.1.el8_10.aarch64.rpm 1e8e17787465566d29eea205dfc1e5c85b01fa96e0effcb8404a589a860ff898 aarch64 kernel-headers-4.18.0-553.146.1.el8_10.aarch64.rpm 206fd87691dad11da4eb41ab70fb9246957d0fa2d14863e1835d6e7f0f4d9001 aarch64 kernel-core-4.18.0-553.146.1.el8_10.aarch64.rpm 246554f53e13d01a283afca344a525b11616fb13d11e6627081bf64ebb85856a aarch64 bpftool-4.18.0-553.146.1.el8_10.aarch64.rpm 24e738b5807d73cc5553e1332ea1f07f0b79099043240d70c1c64cbbaaabe608 aarch64 kernel-cross-headers-4.18.0-553.146.1.el8_10.aarch64.rpm 25f0ea9d4348dbe1a70d6e6f632b7d9e190f636d6960e3977a54ee491f109e31 aarch64 kernel-tools-libs-devel-4.18.0-553.146.1.el8_10.aarch64.rpm 2ac6a34e5c56d83687630cd800161fd551807d91e232aeab07092787bfca2681 aarch64 kernel-debug-core-4.18.0-553.146.1.el8_10.aarch64.rpm 3255b46fda473cdfc031d35cc55089f07733fb741bc896df39916d4f42f673c3 aarch64 kernel-tools-libs-4.18.0-553.146.1.el8_10.aarch64.rpm 45aceabe4499b0d25f4af568458ebcb63c59a7508786f11adec1a17020044a63 aarch64 kernel-tools-4.18.0-553.146.1.el8_10.aarch64.rpm 6034ab87415ec5fbc05fec89c7c5312dcf415c7a44f4cf50ccb89e3e11c14712 aarch64 kernel-debug-4.18.0-553.146.1.el8_10.aarch64.rpm 765ede0381c60dc3e0c62cb4366894c5ba0d391817a7aafaaa867e2bdab89692 aarch64 kernel-modules-extra-4.18.0-553.146.1.el8_10.aarch64.rpm 8a9e495275a3942730b0f0190e1006c5295137a14adb4b276e2669bae3f3fc48 aarch64 kernel-debug-devel-4.18.0-553.146.1.el8_10.aarch64.rpm b0f5ff8d93fc69ba4f797aaba9f83a5bba35b73cd62fb2c767a1bd9835349bec aarch64 kernel-4.18.0-553.146.1.el8_10.aarch64.rpm c76db433c216059e6cba65bf220e7d0fd5f96fa9ba291e8bd881b6fb7c7e0c14 aarch64 kernel-debug-modules-4.18.0-553.146.1.el8_10.aarch64.rpm eb4342c6f4b292ef9ceee0263ca4aded99e758752b99d702f62ab7e6b9834683 aarch64 kernel-devel-4.18.0-553.146.1.el8_10.aarch64.rpm f8627540959254ceed6feb63e0947073e3866a53a1e4c234c3afdc26cc67f2ac aarch64 kernel-debug-modules-extra-4.18.0-553.146.1.el8_10.aarch64.rpm f8b211fccbd9e00e01c153c119acb7ca9fef8549a5764868009089f0025c789f aarch64 perf-4.18.0-553.146.1.el8_10.aarch64.rpm f9b12f905109b33356b86dc017fc022d165b7f6a3b142b440f0a01430b4f67ff noarch kernel-abi-stablelists-4.18.0-553.146.1.el8_10.noarch.rpm 2d2cfb2bce53503f3771578456ecdc108fe6ca997801d0e316aefbffe1b556da noarch kernel-doc-4.18.0-553.146.1.el8_10.noarch.rpm 91c19bb618a19bce57adb4866bfed03e2c6e0a771526c387331b8eb4b13c2221 ppc64le kernel-headers-4.18.0-553.146.1.el8_10.ppc64le.rpm 0effadc709706e5dc2dad19ba6efc2050bce68b37c6bf0411bcf7fd32809daa1 ppc64le kernel-4.18.0-553.146.1.el8_10.ppc64le.rpm 0ffd1fd409fb5681d255ac196dad40bad3d8aa8ec9096d9deeffd57541d2b9e8 ppc64le bpftool-4.18.0-553.146.1.el8_10.ppc64le.rpm 1a182ff2d12713a09cd95fdc740a3a14bdf4f00218603752be6793dbf4930a1f ppc64le kernel-debug-core-4.18.0-553.146.1.el8_10.ppc64le.rpm 2182787508d4f7121d72822007212b90588c6807f1be6b4fd62e00531a09b1d5 ppc64le kernel-tools-libs-4.18.0-553.146.1.el8_10.ppc64le.rpm 47768b439492d739c139e5ff71f2e5d21b44bbee9d970e1c46e49095e7028141 ppc64le kernel-debug-modules-extra-4.18.0-553.146.1.el8_10.ppc64le.rpm 5799c3384631f2340f67c47f6bb08b2b653ff2dde09fbceeaf820be411795cf7 ppc64le kernel-modules-4.18.0-553.146.1.el8_10.ppc64le.rpm 5be5e0ea0863f28bc0c4624f3d290364c68144124cff2f9df3ba9b839087a00a ppc64le kernel-modules-extra-4.18.0-553.146.1.el8_10.ppc64le.rpm 650870edfa017a24ed0dda7b09c8b14af61441b84560ba7f62f04901bcb92da1 ppc64le python3-perf-4.18.0-553.146.1.el8_10.ppc64le.rpm 868b8e4e176a7ecbe8cafd78d56ca2c644c5781c0e59c1e92284b4a6ceb49385 ppc64le kernel-cross-headers-4.18.0-553.146.1.el8_10.ppc64le.rpm 9c1581337a1c55ded92dd40b733883c2d119be9c125bed20ac992f8a9dc32faf ppc64le kernel-core-4.18.0-553.146.1.el8_10.ppc64le.rpm 9f215de3555293375457714711becc15288cbc5f13771fa2b57bede31082bdad ppc64le kernel-debug-devel-4.18.0-553.146.1.el8_10.ppc64le.rpm acfc31c34460570f0d7dbb7be232e98af1fe7da13c3d3aa38bc393e359b84403 ppc64le kernel-debug-modules-4.18.0-553.146.1.el8_10.ppc64le.rpm b7c9352400c22db44854839798d03df079a13791feebdc80f6655041f6bdbbe3 ppc64le perf-4.18.0-553.146.1.el8_10.ppc64le.rpm b89a67f5af7f11b96222cdd528024b7acd6b8fd9b1fc9f04f5f2d9be955f6427 ppc64le kernel-debug-4.18.0-553.146.1.el8_10.ppc64le.rpm d73ded064e151facaa9dc0fa9f98146cb7f0037a3892ba3fbc97b9b091ed6a0b ppc64le kernel-tools-4.18.0-553.146.1.el8_10.ppc64le.rpm e626210033e603711a24c94b01e71cf6276e5a703dc8fbe39a620ee6559b0d7a ppc64le kernel-devel-4.18.0-553.146.1.el8_10.ppc64le.rpm f252c5e6892c47d4d8b8988393ffc51de943e484f1859b5af94f346ad78aa4b1 ppc64le kernel-tools-libs-devel-4.18.0-553.146.1.el8_10.ppc64le.rpm f5adfb66e595c09f6295d3942c07a67424b5956d0339281ab4130c2d0d6feb7b s390x kernel-debug-4.18.0-553.146.1.el8_10.s390x.rpm 18970a50869cb7f07af70344234bc9f6c5a7cb8180049570a1e7f31bb9cf2292 s390x kernel-cross-headers-4.18.0-553.146.1.el8_10.s390x.rpm 2a968ce8b39daf4cdbc06b1f62f4ddc8ba97052d9ca77e458ec9ee7adf9049a2 s390x kernel-tools-4.18.0-553.146.1.el8_10.s390x.rpm 2effd51ee43bc3f20d3f0edda797d900558e510057816c33e41b2b7b7d893e59 s390x bpftool-4.18.0-553.146.1.el8_10.s390x.rpm 3009f3d5ee933e1f2b5fd96dd706ff5710a3b295ad75706449f6fc7fb3cf3264 s390x kernel-zfcpdump-modules-4.18.0-553.146.1.el8_10.s390x.rpm 6ecceb72967d88723eef5c3387d437b5115e81ec6f89b6312682998d7eaf395d s390x kernel-zfcpdump-core-4.18.0-553.146.1.el8_10.s390x.rpm 71a474c7e8ec5d2c2cc69fcd9c8584e7e29b79ce65cde14d3118cb9781adc7e9 s390x kernel-devel-4.18.0-553.146.1.el8_10.s390x.rpm 746ac1a159a8b15dd3d73bd7c9a74e64a0e597c44bebfffa15fb8faef930abb6 s390x kernel-debug-modules-extra-4.18.0-553.146.1.el8_10.s390x.rpm 752e786712f5ed3d74198c7413fe19cf7ce002c95a08a7925e540b11b1cf083b s390x kernel-4.18.0-553.146.1.el8_10.s390x.rpm 7c9b4b48e47bfb660b107f7dc96168936293b8d0051f0d749922ae49ac9408ec s390x kernel-modules-4.18.0-553.146.1.el8_10.s390x.rpm 8d52332a19ed2b526e3b32fe102356f81fcd204b0f74252ddcc80255b4c52e10 s390x kernel-core-4.18.0-553.146.1.el8_10.s390x.rpm 8ff61e1e33dd04d956093c37017894c9360d3356ef67e7f5d9eab38aa676c609 s390x kernel-debug-modules-4.18.0-553.146.1.el8_10.s390x.rpm 9fd05a8e6d9e49aedcd0e5ffeabde0673229ade8816bb20781df414b925f9f37 s390x kernel-debug-core-4.18.0-553.146.1.el8_10.s390x.rpm b48086b7b553c5c9c173d676c2df458ca388153376986ef1b31d96befe783531 s390x kernel-debug-devel-4.18.0-553.146.1.el8_10.s390x.rpm c87ae458a5dcb48c503a38da3f76c1604252e93627f8197a79f32eabe4ba9c60 s390x kernel-modules-extra-4.18.0-553.146.1.el8_10.s390x.rpm cd4821a8b2145bcc2e342659401bbfb1aea37a96bd84bb131eeda6a7df7108d0 s390x kernel-zfcpdump-4.18.0-553.146.1.el8_10.s390x.rpm d7e2fdb242a4d411cf7354abea98844e90e30342099058579fa1d70655a40e64 s390x kernel-headers-4.18.0-553.146.1.el8_10.s390x.rpm db720f54dae1a12311ea489fb94feee5c5522e092a399f9f40bf34fde93b99b8 s390x perf-4.18.0-553.146.1.el8_10.s390x.rpm 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Frequently Asked Questions

What does ALSA-2026:42552 fix?
2 kernel CVEs for AlmaLinux 8, including Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp (CVE-2026-53071).
Is a reboot required?
Yes — kernel fixes only take effect after the server boots into the updated kernel.
How do I apply it?
Run dnf update (kernel packages) and schedule the reboot.

References

Security Advisories

Related Advisories

Perl-CGI Security Update — AlmaLinux 8 (ALSA-2026:99849)

2026-11-12

.NET 8.0 Security Update — AlmaLinux 8 (ALSA-2026:99052)

2026-11-12

Grafana Security Update — AlmaLinux 8 (ALSA-2026:99030)

2026-11-12

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