RLSA-2026:70403 (CVE-2023-54120)

Vulnerability from osv_rocky – Published: 2026-09-24 06:02 – Updated: 2026-09-24 18:13 – Source website
VLAI
Summary
Important: kernel-rt security, bug fix, and enhancement update
Details

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964)

  • kernel: Linux kernel Bluetooth: Denial of Service via race condition in hidp_session_thread (CVE-2023-54120)

  • kernel: Bluetooth: L2CAP: Fix potential user-after-free (CVE-2023-54214)

  • kernel: Bluetooth: btusb: revert use of devm_kzalloc in btusb (CVE-2025-71082)

  • kernel: Bluetooth: SMP: force responder MITM requirements before building the pairing response (CVE-2026-43334)

  • kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry (CVE-2026-45894)

  • kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043)

  • kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133)

  • kernel: Bluetooth: serialize accept_q access (CVE-2026-52918)

  • kernel: dm cache policy smq: fix missing locks in invalidating cache blocks (CVE-2026-53062)

  • kernel: iommu/amd: Fix clone_alias() to use the original device's devid (CVE-2026-53053)

  • kernel: Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() (CVE-2026-53256)

  • kernel: Bluetooth: RFCOMM: validate skb length in MCC handlers (CVE-2026-53254)

  • kernel: keys: Pin request_key_auth payload in instantiate paths (CVE-2026-63823)

  • kernel: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp (CVE-2026-63975)

  • kernel: Bluetooth: HIDP: fix missing length checks in hidp_input_report() (CVE-2026-63947)

  • kernel: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path (CVE-2026-64534)

  • kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582)

  • kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads (CVE-2026-68293)

  • kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios (CVE-2026-68188)

Bug Fix(es) and Enhancement(s):

  • Intel IOMMU: possible circular locking dependency (JIRA:Rocky Linux-243217)

  • xfs: repeated xfs_trans_cancel called from xfs_iomap_write_direct (JIRA:Rocky Linux-251578)

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:8",
        "name": "kernel-rt",
        "purl": "pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "NFV"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.166.1.rt7.507.el8_10"
            }
          ],
          "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-2026:70403"
  },
  "details": "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: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964)\n\n* kernel: Linux kernel Bluetooth: Denial of Service via race condition in hidp_session_thread (CVE-2023-54120)\n\n* kernel: Bluetooth: L2CAP: Fix potential user-after-free (CVE-2023-54214)\n\n* kernel: Bluetooth: btusb: revert use of devm_kzalloc in btusb (CVE-2025-71082)\n\n* kernel: Bluetooth: SMP: force responder MITM requirements before building the pairing response (CVE-2026-43334)\n\n* kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry (CVE-2026-45894)\n\n* kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043)\n\n* kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133)\n\n* kernel: Bluetooth: serialize accept_q access (CVE-2026-52918)\n\n* kernel: dm cache policy smq: fix missing locks in invalidating cache blocks (CVE-2026-53062)\n\n* kernel: iommu/amd: Fix clone_alias() to use the original device\u0027s devid (CVE-2026-53053)\n\n* kernel: Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() (CVE-2026-53256)\n\n* kernel: Bluetooth: RFCOMM: validate skb length in MCC handlers (CVE-2026-53254)\n\n* kernel: keys: Pin request_key_auth payload in instantiate paths (CVE-2026-63823)\n\n* kernel: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp (CVE-2026-63975)\n\n* kernel: Bluetooth: HIDP: fix missing length checks in hidp_input_report() (CVE-2026-63947)\n\n* kernel: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path (CVE-2026-64534)\n\n* kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582)\n\n* kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads (CVE-2026-68293)\n\n* kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios (CVE-2026-68188)\n\nBug Fix(es) and Enhancement(s):\n\n* Intel IOMMU: possible circular locking dependency (JIRA:Rocky Linux-243217)\n\n* xfs: repeated xfs_trans_cancel called from xfs_iomap_write_direct (JIRA:Rocky Linux-251578)\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-2026:70403",
  "modified": "2026-09-24T18:13:46.819866Z",
  "published": "2026-09-24T06:02:23.953185Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:70403"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2403545"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2425183"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426069"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429054"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468050"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481940"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482127"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482550"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492092"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492278"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492310"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492717"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492795"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502218"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502346"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502388"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507399"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511448"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513150"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513222"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:70403"
    }
  ],
  "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-rt security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2023-54120",
    "CVE-2023-54214",
    "CVE-2025-39964",
    "CVE-2025-71082",
    "CVE-2026-43334",
    "CVE-2026-45894",
    "CVE-2026-46043",
    "CVE-2026-46133",
    "CVE-2026-52918",
    "CVE-2026-53053",
    "CVE-2026-53062",
    "CVE-2026-53254",
    "CVE-2026-53256",
    "CVE-2026-63823",
    "CVE-2026-63947",
    "CVE-2026-63975",
    "CVE-2026-64534",
    "CVE-2026-64582",
    "CVE-2026-68188",
    "CVE-2026-68293"
  ]
}



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