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        "text": "An update for kernel-rt is now available for Red Hat Enterprise Linux 8.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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        "text": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: s390/cpum_sf: Handle CPU hotplug remove during sampling (CVE-2024-57849)\n\n* kernel: smc91x: fix broken irq-context in PREEMPT_RT (CVE-2025-71132)\n\n* kernel: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (CVE-2026-45970)\n\n* kernel: zram: fix use-after-free in zram_bvec_write_partial() (CVE-2026-53185)\n\n* kernel: pNFS: Fix use-after-free in pnfs_update_layout() (CVE-2026-63800)\n\n* kernel: nfsd: fix posix_acl leak on SETACL decode failure (CVE-2026-53397)\n\n* kernel: nfsd: release layout stid on setlease failure (CVE-2026-53399)\n\n* kernel: NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392)\n\n* kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (CVE-2026-53391)\n\n* kernel: net: mana: validate rx_req_idx to prevent out-of-bounds array access (CVE-2026-64018)\n\n* kernel: Kernel: Remote out-of-bounds write in RDMA/siw (CVE-2026-64268)\n\n* kernel: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298)\n\n* kernel: AMD-SN-7061: Safe RET Interrupt Vulnerability (CVE-2026-68480)\n\n* kernel: net: ipv6: use-after-free in fib6_rule_suppress due to stale res-\u003ert6 pointer (CVE-2026-74581)\n\nBug Fix(es) and Enhancement(s):\n\n* qede: build_skb failure causes off-by-one BD ring corruption and kernel panic [rhel-8.10.z] (JIRA:RHEL-193045)\n\n* powerpc/pseries: lparcfg - fix kbuf[] underflow (JIRA:RHEL-240144)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: net: ipv6: use-after-free in fib6_rule_suppress due to stale res-\u003ert6 pointer",
          "title": "Vulnerability summary"
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        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: net: ipv6: use-after-free in fib6_rule_suppress due to stale res-\u003ert6 pointer"
    }
  ]
}