{"id":8940,"date":"2026-06-11T13:56:09","date_gmt":"2026-06-11T06:56:09","guid":{"rendered":"https:\/\/longvan.net\/cong-dong\/?p=8940"},"modified":"2026-06-11T13:56:12","modified_gmt":"2026-06-11T06:56:12","slug":"huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux","status":"publish","type":"post","link":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux"},"content":{"rendered":"

L\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt quan tr\u1ecdng <\/span>CVE-2026-31431<\/b> \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong kernel Linux. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng, ng\u01b0\u1eddi d\u00f9ng c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh b\u1ecb \u1ea3nh h\u01b0\u1edfng c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc v\u00e1 l\u1ed7i ho\u1eb7c \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u t\u1ea1m th\u1eddi ngay l\u1eadp t\u1ee9c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn chi ti\u1ebft cho c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh ph\u1ed5 bi\u1ebfn d\u1ef1a tr\u00ean RHEL.<\/span><\/p>\n

Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c \u0111\u1ecbnh phi\u00ean b\u1ea3n kernel h\u1ec7 th\u1ed1ng \u0111ang ch\u1ea1y b\u1eb1ng l\u1ec7nh : uname -r<\/strong><\/p>\n

I. <\/span>CentOS Stream 9 & 10 C\u00e1c phi\u00ean b\u1ea3n b\u1ecb \u1ea3nh h\u01b0\u1edfng<\/b><\/h3>\n
    \n
  • CentOS Stream 9:<\/b> T\u1ea5t c\u1ea3 kernel tr\u01b0\u1edbc b\u1ea3n <\/span>5.14.0-701.el9<\/strong> \u0111\u1ec1u b\u1ecb \u1ea3nh h\u01b0\u1edfng. Kernel <\/span>5.14.0-701.el9<\/strong> (ho\u1eb7c cao h\u01a1n) \u0111\u00e3 \u0111\u01b0\u1ee3c update b\u1ea3n v\u00e1.<\/span><\/li>\n
  • CentOS Stream 10:<\/b> T\u1ea5t c\u1ea3 kernel tr\u01b0\u1edbc b\u1ea3n v\u00e1 (th\u01b0\u1eddng l\u00e0 tr\u01b0\u1edbc kernel 6.12.0-225.el10<\/strong><\/span>) \u0111\u1ec1u b\u1ecb \u1ea3nh h\u01b0\u1edfng. Kernel an to\u00e0n l\u00e0 b\u1ea3n build sau khi merge patch ( l\u00e0 <\/span>kernel 6.12.0-225.el10<\/strong><\/span>\u00a0m\u1edbi nh\u1ea5t, hi\u1ec7n \u0111ang ch\u1edd compose \u0111\u1ea7y \u0111\u1ee7).<\/span><\/li>\n<\/ul>\n

    1. <\/span>C\u00e1ch t\u1ea1m th\u1eddi (Mitigation)<\/b><\/h4>\n

    \u0110\u1ec3 t\u1ea1o file ch\u1eb7n module <\/span>algif_aead<\/span> v\u00e0 g\u1ee1 module n\u1ebfu \u0111ang load, ch\u1ea1y c\u00e1c l\u1ec7nh sau:<\/span><\/p>\n

    B\u01b0\u1edbc 1:\u00a0 T\u1ea1o file ch\u1eb7n module<\/span><\/h4>\n

    echo “install algif\\_aead \/bin\/false” | sudo tee \/etc\/modprobe.d\/disable-algif\\_aead.conf<\/span><\/p><\/blockquote>\n

    \"\"<\/p>\n

    B\u01b0\u1edbc 2:\u00a0 G\u1ee1 module n\u1ebfu \u0111ang load<\/h4>\n

    sudo rmmod algif\\_aead 2\\>\/dev\/null || true<\/span><\/p>\n

    lsmod | grep algif_aead<\/p><\/blockquote>\n

    \"\"<\/p>\n

    2. C\u00e1ch c\u1eadp nh\u1eadt kernel ch\u00ednh th\u1ee9c<\/b><\/h4>\n

    B\u01b0\u1edbc 1: L\u00e0m s\u1ea1ch b\u1ed9 nh\u1edb cache DNF:<\/h4>\n
    \n
    sudo dnf clean all<\/pre>\n<\/blockquote>\n
    \"\"<\/p>\n
    B\u01b0\u1edbc 2: Th\u1ef1c hi\u1ec7n c\u1eadp nh\u1eadt c\u00e1c g\u00f3i kernel<\/h4>\n
    \n
    sudo dnf update kernel\\* kernel-core kernel-modules\\*<\/code><\/pre>\n<\/blockquote>\n
    \"\"<\/p>\n
    \"\"<\/p>\n
    ch\u1edd 1 l\u00fac t\u1edbi khi c\u00f3 th\u00f4ng b\u00e1o c\u00e0i \u0111\u1eb7t ho\u00e0n t\u1ea5t.<\/p>\n
    B\u01b0\u1edbc 3: Ki\u1ec3m tra kernel m\u1edbi \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t
    \n(Th\u1ef1c hi\u1ec7n b\u01b0\u1edbc n\u00e0y \u0111\u1ec3 x\u00e1c nh\u1eadn kernel m\u1edbi \u0111\u00e3 c\u00f3 trong danh s\u00e1ch tr\u01b0\u1edbc khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i. \u0110\u1ed1i v\u1edbi CentOS Stream 9, b\u1ea1n ki\u1ec3m tra s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a b\u1ea3n 5.14.0-701<\/strong>\u00a0ho\u1eb7c cao h\u01a1n.)<\/h4>\n
    sudo dnf list kernel –showduplicates | grep -E ‘installed|5.14.0-701’<\/p><\/blockquote>\n
    \"\"<\/p>\n
    B\u01b0\u1edbc 4: Kh\u1edfi \u0111\u1ed9ng l\u1ea1i h\u1ec7 th\u1ed1ng<\/h4>\n
    \n
    sudo reboot<\/code><\/pre>\n<\/blockquote>\n
    B\u01b0\u1edbc 5: Ki\u1ec3m tra phi\u00ean b\u1ea3n kernel \u0111ang ch\u1ea1y sau khi reboot<\/h4>\n
    \n
    uname -r<\/code><\/pre>\n<\/blockquote>\n
    \"\"<\/p>\n
    B\u01b0\u1edbc 6: X\u00e1c nh\u1eadn b\u1ea3n v\u00e1 CVE-2026-31431 \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong changelog c\u1ee7a kernel<\/h4>\n
    \n
    rpm -q --changelog kernel | grep -i 31431<\/code><\/pre>\n<\/blockquote>\n
    \"\"<\/p>\n
    II.\u00a0 Red Hat Enterprise Linux (RHEL 8 \/ 9 \/ 10)<\/h3>\n
    C\u00e1c phi\u00ean b\u1ea3n b\u1ecb \u1ea3nh h\u01b0\u1edfng<\/h4>\n
      \n
    • T\u1ea5t c\u1ea3 kernel tr\u01b0\u1edbc errata \u0111\u1ec1u b\u1ecb \u1ea3nh h\u01b0\u1edfng (v\u00ed d\u1ee5: RHEL 10.1 <\/span>kernel-6.12.0-124.45.1.el10_1<\/span>).<\/span><\/li>\n<\/ul>\n
      Kernel an to\u00e0n<\/b><\/p>\n
        \n
      • RHEL 9:<\/b> kernel t\u1eeb errata <\/strong><\/span>RHSA-2026:13565<\/strong> tr\u1edf l\u00ean.<\/span><\/li>\n
      • RHEL 10:<\/b> kernel t\u1eeb <\/span>RHSA-2026:13566<\/strong> tr\u1edf l\u00ean.<\/span><\/li>\n
      • RHEL 8:<\/b> kernel t\u1eeb <\/span>RHSA-2026:13577<\/strong> tr\u1edf l\u00ean.<\/span><\/li>\n<\/ul>\n
        1. C\u00e1ch T\u1ea1m Th\u1eddi (Mitigation)<\/h4>\n
        \u0110\u00e2y l\u00e0 bi\u1ec7n ph\u00e1p t\u1ee9c th\u1eddi \u0111\u1ec3 ng\u0103n ch\u1eb7n l\u1ed7 h\u1ed5ng b\u1eb1ng c\u00e1ch ch\u1eb7n module b\u1ecb \u1ea3nh h\u01b0\u1edfng (algif_aead).<\/p>\n
        B\u01b0\u1edbc 1: Ch\u1eb7n module algif_aead<\/h4>\n
        T\u1ea1o m\u1ed9t t\u1ec7p c\u1ea5u h\u00ecnh \u0111\u1ec3 ng\u0103n h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng t\u1ea3i module n\u00e0y khi kh\u1edfi \u0111\u1ed9ng.<\/p>\n
        echo “install algif_aead \/bin\/false” | sudo tee \/etc\/modprobe.d\/disable-algif_aead.conf<\/p><\/blockquote>\n
        B\u01b0\u1edbc 2: G\u1ee1 module n\u1ebfu n\u00f3 \u0111ang \u0111\u01b0\u1ee3c t\u1ea3i<\/h4>\n
        Th\u1eed g\u1ee1 module kh\u1ecfi kernel \u0111ang ch\u1ea1y. L\u1ec7nh n\u00e0y s\u1ebd b\u1ecf qua l\u1ed7i n\u1ebfu module kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea3i (2>\/dev\/null || true).<\/p>\n
        sudo rmmod algif_aead 2>\/dev\/null || true<\/p><\/blockquote>\n
        2. C\u00e1ch C\u1eadp Nh\u1eadt Kernel Ch\u00ednh Th\u1ee9c<\/h4>\n
        B\u01b0\u1edbc 1: L\u00e0m s\u1ea1ch b\u1ed9 nh\u1edb cache DNF<\/h4>\n
        sudo dnf clean all<\/p><\/blockquote>\n
        B\u01b0\u1edbc 2: Th\u1ef1c hi\u1ec7n c\u1eadp nh\u1eadt c\u00e1c g\u00f3i kernel<\/h4>\n
        S\u1eed d\u1ee5ng l\u1ec7nh \u01b0u ti\u00ean c\u1eadp nh\u1eadt b\u1ea3o m\u1eadt:<\/p>\n
        sudo dnf update –security kernel\\*<\/p><\/blockquote>\n
        Ho\u1eb7c<\/i> s\u1eed d\u1ee5ng l\u1ec7nh c\u1eadp nh\u1eadt chung:<\/p>\n
        sudo dnf update kernel\\*<\/p><\/blockquote>\n
        B\u01b0\u1edbc 3: Kh\u1edfi \u0111\u1ed9ng l\u1ea1i h\u1ec7 th\u1ed1ng<\/h4>\n
        Kh\u1edfi \u0111\u1ed9ng l\u1ea1i \u0111\u1ec3 h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n kernel m\u1edbi \u0111\u00e3 \u0111\u01b0\u1ee3c v\u00e1 l\u1ed7i.<\/p>\n
        sudo reboot<\/p><\/blockquote>\n
        B\u01b0\u1edbc 4: Ki\u1ec3m tra phi\u00ean b\u1ea3n kernel \u0111ang ch\u1ea1y sau khi reboot<\/h4>\n
        uname -r<\/p><\/blockquote>\n
        III. AlmaLinux \/ Rocky Linux \/ Oracle Linux (C\u00e1c b\u1ea3n clone RHEL)<\/h3>\n
        C\u00e1c phi\u00ean b\u1ea3n b\u1ecb \u1ea3nh h\u01b0\u1edfng v\u00e0 Kernel an to\u00e0n<\/strong><\/p>\n
          \n
        • C\u00e1c phi\u00ean b\u1ea3n b\u1ecb \u1ea3nh h\u01b0\u1edfng<\/strong>: T\u1ea5t c\u1ea3 kernel tr\u01b0\u1edbc errata \u0111\u1ec1u b\u1ecb \u1ea3nh h\u01b0\u1edfng (v\u00ed d\u1ee5: RHEL 10.1 <\/strong><\/span>kernel-6.12.0-124.45.1.el10_1<\/strong>).<\/span><\/li>\n
        • Kernel an to\u00e0n<\/strong>:<\/span>\n
            \n
          • RHEL 9<\/strong>: kernel t\u1eeb errata RHSA-2026:13565<\/strong> tr\u1edf l\u00ean.<\/span><\/li>\n
          • RHEL 10<\/strong>: kernel t\u1eeb RHSA-2026:13566<\/strong> tr\u1edf l\u00ean.<\/span><\/li>\n
          • RHEL 8<\/strong>: kernel t\u1eeb errata RHSA-2026:13577<\/strong> tr\u1edf l\u00ean.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
            1. C\u00e1ch T\u1ea1m Th\u1eddi (Mitigation)<\/span><\/h4>\n
            Th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc sau \u0111\u1ec3 ch\u1eb7n module <\/span>algif_aead<\/span> v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro<\/span><\/h4>\n
            B\u01b0\u1edbc 1: Ch\u1eb7n module v\u00e0 t\u1ea1o t\u1ec7p c\u1ea5u h\u00ecnh<\/h4>\n
            \n
            echo “install algif_aead \/bin\/false” | sudo tee \/etc\/modprobe.d\/disable-algif_aead.conf<\/span><\/h4>\n<\/blockquote>\n
            \"\"<\/p>\n
            B\u01b0\u1edbc 2: G\u1ee1 module n\u1ebfu n\u00f3 \u0111ang \u0111\u01b0\u1ee3c t\u1ea3i<\/h4>\n
            sudo rmmod algif_aead 2>\/dev\/null || true<\/span><\/p><\/blockquote>\n
            \"\"<\/p>\n
            #T\u00f9y ch\u1ecdn: Th\u00eam tham s\u1ed1 blacklist v\u00e0o Grub (n\u1ebfu c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i \u0111\u1ec3 ch\u1eafc ch\u1eafn h\u01a1n):<\/p>\n
            sudo grubby –update-kernel=ALL –args=”initcall_blacklist=algif_aead_init”<\/span><\/p><\/blockquote>\n
            2. C\u00e1ch C\u1eadp Nh\u1eadt Kernel Ch\u00ednh Th\u1ee9c<\/strong><\/p>\n
            \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p v\u00e1 l\u1ed7i tri\u1ec7t \u0111\u1ec3 nh\u1ea5t<\/span><\/h4>\n
            B\u01b0\u1edbc 1: L\u00e0m s\u1ea1ch b\u1ed9 nh\u1edb cache DNF<\/h4>\n
            sudo dnf clean all<\/span><\/p><\/blockquote>\n
            \"\"<\/p>\n
            B\u01b0\u1edbc 2: Th\u1ef1c hi\u1ec7n c\u1eadp nh\u1eadt c\u00e1c g\u00f3i kernel<\/h4>\n
            sudo dnf update kernel\\*<\/span><\/p><\/blockquote>\n
             <\/p>\n
            \"\"<\/p>\n
            B\u01b0\u1edbc 3: Kh\u1edfi \u0111\u1ed9ng l\u1ea1i h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u00e1p d\u1ee5ng kernel m\u1edbi<\/h4>\n
            sudo reboot<\/span><\/p><\/blockquote>\n
            B\u01b0\u1edbc 4: Ki\u1ec3m tra phi\u00ean b\u1ea3n kernel \u0111ang ch\u1ea1y sau khi reboot<\/h4>\n
            uname -r<\/span><\/p><\/blockquote>\n
            \"\"<\/p>\n
            \u0110\u1ea3m b\u1ea3o kernel \u0111\u00e3 n\u1eb1m \u0111\u01b0\u1ee3c update b\u1ea3n v\u00e1.<\/p>\n
            IV. L\u01b0u \u00fd Quan tr\u1ecdng v\u00e0 Khuy\u1ebfn ngh\u1ecb<\/h3>\n
              \n
            • \u01afu ti\u00ean Kh\u1eafc ph\u1ee5c Tri\u1ec7t \u0111\u1ec3<\/strong>: Vi\u1ec7c c\u1eadp nh\u1eadt kernel l\u00ean phi\u00ean b\u1ea3n an to\u00e0n \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong m\u1ee5c “Kernel an to\u00e0n” l\u00e0 ph\u01b0\u01a1ng ph\u00e1p kh\u1eafc ph\u1ee5c tri\u1ec7t \u0111\u1ec3 v\u00e0 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb nh\u1ea5t.<\/li>\n
            • Bi\u1ec7n ph\u00e1p t\u1ea1m th\u1eddi (Mitigation)<\/strong> ch\u1ec9 nh\u1eb1m m\u1ee5c \u0111\u00edch gi\u1ea3m thi\u1ec3u r\u1ee7i ro t\u1ee9c th\u1eddi v\u00e0 n\u00ean \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng b\u1ea3n v\u00e1 ch\u00ednh th\u1ee9c ngay khi c\u00f3 th\u1ec3.<\/li>\n
            • X\u00e1c minh sau Thao t\u00e1c: <\/strong>Sau khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i, lu\u00f4n ki\u1ec3m tra phi\u00ean b\u1ea3n kernel \u0111ang ch\u1ea1y b\u1eb1ng l\u1ec7nh uname -r \u0111\u1ec3 x\u00e1c nh\u1eadn h\u1ec7 th\u1ed1ng \u0111ang s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n \u0111\u00e3 \u0111\u01b0\u1ee3c v\u00e1.<\/li>\n
            • Theo d\u00f5i Ngu\u1ed3n ch\u00ednh th\u1ee9c: <\/strong>Ng\u01b0\u1eddi d\u00f9ng c\u00e1c b\u1ea3n ph\u00e2n ph\u1ed1i clone RHEL (AlmaLinux, Rocky Linux, Oracle Linux) n\u00ean theo d\u00f5i c\u00e1c k\u00eanh th\u00f4ng b\u00e1o\/security errata ch\u00ednh th\u1ee9c c\u1ee7a nh\u00e0 cung c\u1ea5p h\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111\u00f3 \u0111\u1ec3 nh\u1eadn b\u1ea3n v\u00e1 s\u1edbm nh\u1ea5t sau khi Red Hat ph\u00e1t h\u00e0nh.<\/li>\n<\/ul>\n
              Nh\u01b0 v\u1eady, Long V\u00e2n \u0111\u00e3 h\u01b0\u1edbng d\u1eabn qu\u00fd Kh\u00e1ch c\u00e1c b\u01b0\u1edbc gi\u1ea3m thi\u1ec3u t\u1ea1m th\u1eddi v\u00e0 quy tr\u00ecnh c\u1eadp nh\u1eadt kernel \u0111\u1ec3 kh\u1eafc ph\u1ee5c l\u1ed7 h\u1ed5ng\u00a0<\/span>CVE-2026-31431<\/span><\/strong>. Ch\u00fac qu\u00fd Kh\u00e1ch th\u00e0nh c\u00f4ng.<\/p>\n","protected":false},"excerpt":{"rendered":"
              L\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt quan tr\u1ecdng CVE-2026-31431 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong kernel Linux. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng, ng\u01b0\u1eddi d\u00f9ng c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh b\u1ecb \u1ea3nh h\u01b0\u1edfng c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc v\u00e1 l\u1ed7i ho\u1eb7c \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u t\u1ea1m th\u1eddi ngay l\u1eadp t\u1ee9c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn […]<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_oasis_is_in_workflow":0,"_oasis_original":0,"footnotes":""},"categories":[1,4],"tags":[202,458,5,148],"class_list":["post-8940","post","type-post","status-publish","format-standard","hentry","category-huong-dan-chung","category-linux","tag-bao-mat","tag-cve","tag-linux","tag-ubuntu"],"yoast_head":"\nH\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux - Long V\u00e2n<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux - Long V\u00e2n\" \/>\n<meta property=\"og:description\" content=\"L\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt quan tr\u1ecdng CVE-2026-31431 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong kernel Linux. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng, ng\u01b0\u1eddi d\u00f9ng c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh b\u1ecb \u1ea3nh h\u01b0\u1edfng c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc v\u00e1 l\u1ed7i ho\u1eb7c \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u t\u1ea1m th\u1eddi ngay l\u1eadp t\u1ee9c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/\" \/>\n<meta property=\"og:site_name\" content=\"Long V\u00e2n\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-11T06:56:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-11T06:56:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-e1780911855175.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1130\" \/>\n\t<meta property=\"og:image:height\" content=\"50\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n B\u00ecnh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nguy\u1ec5n B\u00ecnh\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/\"},\"author\":{\"name\":\"Nguy\u1ec5n B\u00ecnh\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#\\\/schema\\\/person\\\/0724e5bcec71b61fb8f56fff94ba2fc3\"},\"headline\":\"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \\\/ RHEL \\\/ AlmaLinux \\\/ Rocky Linux\",\"datePublished\":\"2026-06-11T06:56:09+00:00\",\"dateModified\":\"2026-06-11T06:56:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/\"},\"wordCount\":1402,\"publisher\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Screenshot_2-e1780911855175.png\",\"keywords\":[\"b\u1ea3o m\u1eadt\",\"CVE\",\"Linux\",\"ubuntu\"],\"articleSection\":[\"H\u01b0\u1edbng d\u1eabn chung\",\"Linux\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/\",\"url\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/\",\"name\":\"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \\\/ RHEL \\\/ AlmaLinux \\\/ Rocky Linux - Long V\u00e2n\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Screenshot_2-e1780911855175.png\",\"datePublished\":\"2026-06-11T06:56:09+00:00\",\"dateModified\":\"2026-06-11T06:56:12+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/#primaryimage\",\"url\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Screenshot_2-e1780911855175.png\",\"contentUrl\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Screenshot_2-e1780911855175.png\",\"width\":1130,\"height\":50},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Trang ch\u1ee7\",\"item\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \\\/ RHEL \\\/ AlmaLinux \\\/ Rocky Linux\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#website\",\"url\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/\",\"name\":\"Long V\u00e2n\",\"description\":\"C\u1ed9ng \u0110\u1ed3ng\",\"publisher\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#organization\",\"name\":\"Long V\u00e2n\",\"url\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/cropped-logo-longvancloudsolution.png\",\"contentUrl\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/cropped-logo-longvancloudsolution.png\",\"width\":1300,\"height\":330,\"caption\":\"Long V\u00e2n\"},\"image\":{\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/#\\\/schema\\\/person\\\/0724e5bcec71b61fb8f56fff94ba2fc3\",\"name\":\"Nguy\u1ec5n B\u00ecnh\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/bfc4fdc8ef9d8e578c510f716eea05cd9320140e74bcb6606e43e0cf78961a9b?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/bfc4fdc8ef9d8e578c510f716eea05cd9320140e74bcb6606e43e0cf78961a9b?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/bfc4fdc8ef9d8e578c510f716eea05cd9320140e74bcb6606e43e0cf78961a9b?s=96&d=mm&r=g\",\"caption\":\"Nguy\u1ec5n B\u00ecnh\"},\"url\":\"https:\\\/\\\/longvan.net\\\/cong-dong\\\/author\\\/nguyenbinh\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux - Long V\u00e2n","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/","og_locale":"vi_VN","og_type":"article","og_title":"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux - Long V\u00e2n","og_description":"L\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt quan tr\u1ecdng CVE-2026-31431 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong kernel Linux. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng, ng\u01b0\u1eddi d\u00f9ng c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh b\u1ecb \u1ea3nh h\u01b0\u1edfng c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc v\u00e1 l\u1ed7i ho\u1eb7c \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u t\u1ea1m th\u1eddi ngay l\u1eadp t\u1ee9c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn […]","og_url":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/","og_site_name":"Long V\u00e2n","article_published_time":"2026-06-11T06:56:09+00:00","article_modified_time":"2026-06-11T06:56:12+00:00","og_image":[{"width":1130,"height":50,"url":"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-e1780911855175.png","type":"image\/png"}],"author":"Nguy\u1ec5n B\u00ecnh","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"Nguy\u1ec5n B\u00ecnh","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"8 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/#article","isPartOf":{"@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/"},"author":{"name":"Nguy\u1ec5n B\u00ecnh","@id":"https:\/\/longvan.net\/cong-dong\/#\/schema\/person\/0724e5bcec71b61fb8f56fff94ba2fc3"},"headline":"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux","datePublished":"2026-06-11T06:56:09+00:00","dateModified":"2026-06-11T06:56:12+00:00","mainEntityOfPage":{"@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/"},"wordCount":1402,"publisher":{"@id":"https:\/\/longvan.net\/cong-dong\/#organization"},"image":{"@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/#primaryimage"},"thumbnailUrl":"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-e1780911855175.png","keywords":["b\u1ea3o m\u1eadt","CVE","Linux","ubuntu"],"articleSection":["H\u01b0\u1edbng d\u1eabn chung","Linux"],"inLanguage":"vi"},{"@type":"WebPage","@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/","url":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/","name":"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux - Long V\u00e2n","isPartOf":{"@id":"https:\/\/longvan.net\/cong-dong\/#website"},"primaryImageOfPage":{"@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/#primaryimage"},"image":{"@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/#primaryimage"},"thumbnailUrl":"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-e1780911855175.png","datePublished":"2026-06-11T06:56:09+00:00","dateModified":"2026-06-11T06:56:12+00:00","breadcrumb":{"@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/#primaryimage","url":"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-e1780911855175.png","contentUrl":"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-e1780911855175.png","width":1130,"height":50},{"@type":"BreadcrumbList","@id":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-kernel-va-lo-hong-copy-fail-tren-centos-rhel-almalinux-rocky-linux\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Trang ch\u1ee7","item":"https:\/\/longvan.net\/cong-dong\/"},{"@type":"ListItem","position":2,"name":"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt kernel v\u00e1 l\u1ed7 h\u1ed5ng Copy Fail tr\u00ean CentOS \/ RHEL \/ AlmaLinux \/ Rocky Linux"}]},{"@type":"WebSite","@id":"https:\/\/longvan.net\/cong-dong\/#website","url":"https:\/\/longvan.net\/cong-dong\/","name":"Long V\u00e2n","description":"C\u1ed9ng \u0110\u1ed3ng","publisher":{"@id":"https:\/\/longvan.net\/cong-dong\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/longvan.net\/cong-dong\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/longvan.net\/cong-dong\/#organization","name":"Long V\u00e2n","url":"https:\/\/longvan.net\/cong-dong\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/longvan.net\/cong-dong\/#\/schema\/logo\/image\/","url":"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2025\/11\/cropped-logo-longvancloudsolution.png","contentUrl":"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2025\/11\/cropped-logo-longvancloudsolution.png","width":1300,"height":330,"caption":"Long V\u00e2n"},"image":{"@id":"https:\/\/longvan.net\/cong-dong\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/longvan.net\/cong-dong\/#\/schema\/person\/0724e5bcec71b61fb8f56fff94ba2fc3","name":"Nguy\u1ec5n B\u00ecnh","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/secure.gravatar.com\/avatar\/bfc4fdc8ef9d8e578c510f716eea05cd9320140e74bcb6606e43e0cf78961a9b?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/bfc4fdc8ef9d8e578c510f716eea05cd9320140e74bcb6606e43e0cf78961a9b?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/bfc4fdc8ef9d8e578c510f716eea05cd9320140e74bcb6606e43e0cf78961a9b?s=96&d=mm&r=g","caption":"Nguy\u1ec5n B\u00ecnh"},"url":"https:\/\/longvan.net\/cong-dong\/author\/nguyenbinh\/"}]}},"_links":{"self":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts\/8940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/comments?post=8940"}],"version-history":[{"count":11,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts\/8940\/revisions"}],"predecessor-version":[{"id":8974,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts\/8940\/revisions\/8974"}],"wp:attachment":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/media?parent=8940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/categories?post=8940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/tags?post=8940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}