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rlsa-2026:64775
Vulnerability from osv_rocky
Published
2026-09-09 12:09
Modified
2026-09-10 18:12
Summary
Important: kernel security, bug fix, and enhancement update
Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: can: bcm: add locking for bcm_op runtime updates (CVE-2025-38004)

  • kernel: ipv6: add NULL checks for idev in SRv6 paths (CVE-2026-23442)

  • kernel: udp: Fix wildcard bind conflict check when using hash2 (CVE-2026-31503)

  • kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)

  • kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)

  • kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)

  • kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)

  • kernel: io_uring/poll: fix signed comparison in io_poll_get_ownership() (CVE-2026-52933)

  • kernel: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls (CVE-2026-53075)

  • kernel: KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation (CVE-2026-53277)

  • kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)

  • kernel: net: add pskb_may_pull() to skb_gro_receive_list() (CVE-2026-53235)

  • kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)

  • kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)

  • kernel: ipv6: anycast: insert aca into global hash under idev->lock (CVE-2026-53259)

  • kernel: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002)

  • kernel: vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() (CVE-2026-63993)

  • kernel: fuse: clear intr_entry in fuse_resend and fuse_remove_pending_req (CVE-2026-64265)

  • kernel: nvmet-auth: validate reply message payload bounds against transfer length (CVE-2026-64319)

  • kernel: KVM: arm64: Bound used_lrs when flushing the pKVM hyp vCPU (CVE-2026-64287)

  • kernel: rhashtable: clear stale iter->p on table restart (CVE-2026-64563)

  • kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)

Bug Fix(es) and Enhancement(s):

  • Customer needs "netfilter: nfnetlink_queue: optimize verdict lookup with hash table" patch [Rocky Linux 10.2] (JIRA:Rocky Linux-132852)

For 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.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Credits
Rocky Enterprise Software Foundation
Red Hat
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "kernel",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:6.12.0-211.52.1.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:64775"
  },
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: can: bcm: add locking for bcm_op runtime updates (CVE-2025-38004)\n\n* kernel: ipv6: add NULL checks for idev in SRv6 paths (CVE-2026-23442)\n\n* kernel: udp: Fix wildcard bind conflict check when using hash2 (CVE-2026-31503)\n\n* kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)\n\n* kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)\n\n* kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)\n\n* kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)\n\n* kernel: io_uring/poll: fix signed comparison in io_poll_get_ownership() (CVE-2026-52933)\n\n* kernel: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls (CVE-2026-53075)\n\n* kernel: KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation (CVE-2026-53277)\n\n* kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)\n\n* kernel: net: add pskb_may_pull() to skb_gro_receive_list() (CVE-2026-53235)\n\n* kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)\n\n* kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)\n\n* kernel: ipv6: anycast: insert aca into global hash under idev-\u003elock (CVE-2026-53259)\n\n* kernel: ipv4: free net-\u003eipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002)\n\n* kernel: vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() (CVE-2026-63993)\n\n* kernel: fuse: clear intr_entry in fuse_resend and fuse_remove_pending_req (CVE-2026-64265)\n\n* kernel: nvmet-auth: validate reply message payload bounds against transfer length (CVE-2026-64319)\n\n* kernel: KVM: arm64: Bound used_lrs when flushing the pKVM hyp vCPU (CVE-2026-64287)\n\n* kernel: rhashtable: clear stale iter-\u003ep on table restart (CVE-2026-64563)\n\n* kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)\n\nBug Fix(es) and Enhancement(s):\n\n* Customer needs \"netfilter: nfnetlink_queue: optimize verdict lookup with hash table\" patch [Rocky Linux 10.2] (JIRA:Rocky Linux-132852)\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.",
  "id": "RLSA-2026:64775",
  "modified": "2026-09-10T18:12:41.566913Z",
  "published": "2026-09-09T12:09:16.585859Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:64775"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484456"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2370992"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510892"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507041"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460736"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511932"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507096"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492745"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486463"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454807"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492295"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502363"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502369"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492841"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481936"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492725"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492733"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492097"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468102"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492850"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492811"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507129"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:64775"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2025-38004",
    "CVE-2026-23442",
    "CVE-2026-31503",
    "CVE-2026-43339",
    "CVE-2026-46015",
    "CVE-2026-46266",
    "CVE-2026-46306",
    "CVE-2026-52933",
    "CVE-2026-53075",
    "CVE-2026-53223",
    "CVE-2026-53228",
    "CVE-2026-53235",
    "CVE-2026-53259",
    "CVE-2026-53275",
    "CVE-2026-53277",
    "CVE-2026-63993",
    "CVE-2026-64002",
    "CVE-2026-64265",
    "CVE-2026-64287",
    "CVE-2026-64319",
    "CVE-2026-64563",
    "CVE-2026-64597"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.