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Kernel Security Update — AlmaLinux 8 (ALSA-2026:49857)

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 7.8 CVSS
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 bpftool-4.18.0-553.151.1.el8_10.aarch64.rpm 09180632091554833fbfd2349b8ad2b78edd2b410c654ceb9c1a329cefda2964 aarch64 kernel-modules-extra-4.18.0-553.151.1.el8_10.aarch64.rpm 0f18339a486d4847b1b3de0bc659c261f6ac9c1bad6fa9c7db2e9a19e8802d99 aarch64 kernel-devel-4.18.0-553.151.1.el8_10.aarch64.rpm 17db8e9dd9a72fcc0d0ef8d3b67b8ed0bff7596d18f64cd767e4ad068acf1494 aarch64 kernel-tools-libs-devel-4.18.0-553.151.1.el8_10.aarch64.rpm 1ccfd3e2fcf3021185e9850f15480e0efada319e972f631b67b3120bf2856cf9 aarch64 kernel-debug-modules-extra-4.18.0-553.151.1.el8_10.aarch64.rpm 221f368c6d21b8ce46492e3ba875b40d96f4893fa347909a3acc89f143c7cd10 aarch64 kernel-debug-4.18.0-553.151.1.el8_10.aarch64.rpm 2a5496520cd1cc221fa83fbeec7bf66075294295244c9883da8c5204c5593dbb aarch64 kernel-debug-core-4.18.0-553.151.1.el8_10.aarch64.rpm 3bab8b9a95dec5ec43a28a0bdabad3bc82ef739030e0c89cadaa8597a43c8396 aarch64 kernel-modules-4.18.0-553.151.1.el8_10.aarch64.rpm 5787625464c584ed455c9d727779d1c0197ffec791d98f5d4f5a450a2daed592 aarch64 perf-4.18.0-553.151.1.el8_10.aarch64.rpm 734ff09f49a486673caa9650a84e92986d81b72f520c5b7faac62dc01058fcf9 aarch64 kernel-tools-libs-4.18.0-553.151.1.el8_10.aarch64.rpm 77f4d2aa29da04c6f2ac0b9ce94bd8d36d7c1b9532a80b293fd6280dcafe4b09 aarch64 kernel-4.18.0-553.151.1.el8_10.aarch64.rpm 893e500b8a909078abe489f4c2fbf429c741fbc1b38c882d7a6654c2bbf8cb7e aarch64 kernel-tools-4.18.0-553.151.1.el8_10.aarch64.rpm 96366e97d3b43f571e8a8ebbe08d5ed76a46cfd072228a4cfca6f28a2a53004d aarch64 kernel-core-4.18.0-553.151.1.el8_10.aarch64.rpm 98da4c12151309373fc4f5a251b4d842407a22040d225fd6182e71716f254d0a aarch64 kernel-headers-4.18.0-553.151.1.el8_10.aarch64.rpm a82072626c548c9ce142d9d4ad7b77d0b31326edc2a7f15fc31d08a3eef1e49a aarch64 kernel-cross-headers-4.18.0-553.151.1.el8_10.aarch64.rpm b5bd7f2bbb09d88f2d2a1eb7311a22689bcdbdee03699afe306a6a3da403f430 aarch64 kernel-debug-modules-4.18.0-553.151.1.el8_10.aarch64.rpm bc161684ad999c23fe5e6bd8a039ddd9736aee255808b2d44ef92ad0267a6714 aarch64 kernel-debug-devel-4.18.0-553.151.1.el8_10.aarch64.rpm d0ffb949e0d4809c76de78060b302d2f1e12fa6c70ce222eabb748197fafc309 aarch64 python3-perf-4.18.0-553.151.1.el8_10.aarch64.rpm df990f63411c6c04cc64c9790cfa99581802b1fec9be4b9365349e5720b8e433 noarch kernel-abi-stablelists-4.18.0-553.151.1.el8_10.noarch.rpm 8282126a5ad66137c92f70448246e447357334160018fef0635eb1e18355de23 noarch kernel-doc-4.18.0-553.151.1.el8_10.noarch.rpm f9f709f6e55664772f630d12725bf97611b90e1ff00bed55718312d4e8e98f1d ppc64le kernel-tools-4.18.0-553.151.1.el8_10.ppc64le.rpm 032c28a2d966bf4ce4f3637e61a0d68f84e026ca7f6e0983b6ecdc5e6719e783 ppc64le python3-perf-4.18.0-553.151.1.el8_10.ppc64le.rpm 0df54c727cf18c8cf8c632f984fdd5716ef0a26b3078696ef4b891e0aac09185 ppc64le bpftool-4.18.0-553.151.1.el8_10.ppc64le.rpm 1b3a139eea91fe6eed0930b50454ac2ce7a4aa4225d6427144403cb812149ef8 ppc64le kernel-modules-4.18.0-553.151.1.el8_10.ppc64le.rpm 1e9d133c374bf7599a770c1bb536eedfe11ad6bde400c08d46bb2d83cbdff449 ppc64le kernel-debug-core-4.18.0-553.151.1.el8_10.ppc64le.rpm 20b6ae1999aac83b6ac20272e32f7afe9d6cfce6344a3d45fc71b6ebe01fce56 ppc64le kernel-headers-4.18.0-553.151.1.el8_10.ppc64le.rpm 213a135b18bb6dcb124e54b03d4dcd7b43905f39e9d777bd7c8e6eecd5b93c7a ppc64le kernel-tools-libs-4.18.0-553.151.1.el8_10.ppc64le.rpm 39dea6370a76165c8b42f6db73823906c4830e5e1ae74c5618f140c025e53102 ppc64le kernel-devel-4.18.0-553.151.1.el8_10.ppc64le.rpm 3a1fe089f68264809d2f1e50fcdf1c363f4be68cdb9509cd15766556586eebab ppc64le kernel-debug-4.18.0-553.151.1.el8_10.ppc64le.rpm 3dda9bb2159138e9ceedae82011c972cc11b78c153941be12d4e1d67a5ae6ef9 ppc64le kernel-debug-devel-4.18.0-553.151.1.el8_10.ppc64le.rpm 4646cebd844c320b978b6faaca255ea3d77d1efb0370e315700aa39eb6f6fee9 ppc64le kernel-debug-modules-4.18.0-553.151.1.el8_10.ppc64le.rpm 76a3d55f66f48668f72a0c40d745974f2a5d9ca6515d09153e8c8f563e87cd4f ppc64le kernel-cross-headers-4.18.0-553.151.1.el8_10.ppc64le.rpm 828eb3183bcaf4d5da85197d61073a48d437bacd60f53a54532bb1c8802d753c ppc64le kernel-core-4.18.0-553.151.1.el8_10.ppc64le.rpm 94336c3b315c353aafd0d5daecb9ab4bff811c5fadc97db87dd9df5b7676fcea ppc64le perf-4.18.0-553.151.1.el8_10.ppc64le.rpm 958e14209dc94b81449e6ac526852e12a17cfee0130d126bf40bbb3c3916571c ppc64le kernel-modules-extra-4.18.0-553.151.1.el8_10.ppc64le.rpm 987457c761678152c91dfa419fe4f8cf86bb562e59e7fa893116b4c3cbf8e2a2 ppc64le kernel-tools-libs-devel-4.18.0-553.151.1.el8_10.ppc64le.rpm b18bd81ffcb5c38f25e4e33b6b207cb613dc97cc85cf75b83093db3b6abbf049 ppc64le kernel-4.18.0-553.151.1.el8_10.ppc64le.rpm b9204fe3a681f1d8b988c7e39514c747332bf3e61cb77d04e2d3304093a3ffae ppc64le kernel-debug-modules-extra-4.18.0-553.151.1.el8_10.ppc64le.rpm dd02d41f3ab2962d47c4a6ba372193b48a3b70e7e4bf09a6dca5bbbbc0097f36 s390x kernel-headers-4.18.0-553.151.1.el8_10.s390x.rpm 0699ad3d2df15994af3fd6f2ac1dff7708edabd32b3877b2f105d3e65eb3f2db s390x kernel-debug-modules-extra-4.18.0-553.151.1.el8_10.s390x.rpm 0cdd92c948a36be580ab1c4afd5fb143d5d2334b69b8bc0dff7fd8675164effd s390x kernel-zfcpdump-modules-4.18.0-553.151.1.el8_10.s390x.rpm 11f16cecbed4716517b0e3473d23562a676cd860f921cef70fdbc3bf79cf2145 s390x kernel-tools-4.18.0-553.151.1.el8_10.s390x.rpm 1f43ea59baa40437901482d9f7cf9531f468a82ac67d71d8a1d7d04c5a5fff12 s390x perf-4.18.0-553.151.1.el8_10.s390x.rpm 22ee68f38cae6e163b843654268ad852c63ccf75ae81240c4f15a7e8f7dbce1b s390x kernel-debug-modules-4.18.0-553.151.1.el8_10.s390x.rpm 4c5764b7264be6ec2f32b37372fad39f65812164866a9cc8394b92034e3ae686 s390x bpftool-4.18.0-553.151.1.el8_10.s390x.rpm 4ec0f756e65944bc42f4e03fcd3dcf3db58ef832076bb19d54da7b9173cd1fbb s390x python3-perf-4.18.0-553.151.1.el8_10.s390x.rpm 6115df52c5b7d3c3864ee38ea0d2e914eade5d9e09f6e56e10b802c198067566 s390x kernel-devel-4.18.0-553.151.1.el8_10.s390x.rpm 763289e5e4d720761ba6235086193de6f15bca7f1a473675d347ba8960cca8d6 s390x 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Frequently Asked Questions

What does ALSA-2026:49857 fix?
1 kernel CVEs for AlmaLinux 8, including ipc: limit next_id allocation to the valid ID range (CVE-2026-52923).
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

Qt5-Qtdeclarative Security Update — AlmaLinux 8 (ALSA-2026:96075)

2026-11-10

Webkit2gtk3 Security Update — AlmaLinux 8 (ALSA-2026:96080)

2026-11-09

Util-Linux Security Update — AlmaLinux 8 (ALSA-2026:96212)

2026-11-09

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