Important: kernel-rt security, bug fix, and enhancement update

{
  "id": "e71bcc03bb5c62101893b917a13a1dec242b82982a7831944a2eac7a52b133c4",
  "url": "https://osv.dev/vulnerability/ALSA-2026%3A75746",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Important: kernel-rt security, bug fix, and enhancement update",
    "summary": "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: Linux kernel: Use-after-free in xc5000 tuner driver due to race condition (CVE-2025-39994) * kernel: gfs2: Fix unlikely race in gdlm_put_lock (CVE-2025-40242) * kernel: Linux kernel: Denial of Service in RDMA/bnxt_re driver due to race condition during QP destruction (CVE-2023-54048) * kernel: nvme-pci: fix mempool alloc size (CVE-2022-50756) * kernel: Linux kernel: Denial of Service in QFQ scheduler via child qlen manipulation (CVE-2026-23105) * kernel: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (CVE-2026-45856) * kernel: gfs2: Fix slab-use-after-free in qd_put (CVE-2026-45861) * kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319) * kernel: gfs2: add some missing log locking (CVE-2026-53049) * kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000 (CVE-2026-52972) * kernel: net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list (CVE-2026-53230) * kernel: ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270) * kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829) * kernel: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path (CVE-2026-63794) * kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() (CVE-2026-63992) * kernel: tunnels: load network header",
    "evidence": "osv:ALSA-2026:75746",
    "products": [
      {
        "name": {
          "value": "kernel-rt",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.18.0-553.171.1.rt7.512.el8_10",
            "evidence": "/affected/0/ranges"
          }
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      },
      {
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    "severity": "unknown",
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      "modified": "2026-10-06T12:11:49.041200652Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2026:75746",
        "https://access.redhat.com/security/cve/CVE-2022-50756",
        "https://access.redhat.com/security/cve/CVE-2023-54048",
        "https://access.redhat.com/security/cve/CVE-2025-39994",
        "https://access.redhat.com/security/cve/CVE-2025-40242",
        "https://access.redhat.com/security/cve/CVE-2026-23105",
        "https://access.redhat.com/security/cve/CVE-2026-45856",
        "https://access.redhat.com/security/cve/CVE-2026-45861",
        "https://access.redhat.com/security/cve/CVE-2026-46319",
        "https://access.redhat.com/security/cve/CVE-2026-52972",
        "https://access.redhat.com/security/cve/CVE-2026-53049",
        "https://access.redhat.com/security/cve/CVE-2026-53230",
        "https://access.redhat.com/security/cve/CVE-2026-53270",
        "https://access.redhat.com/security/cve/CVE-2026-63794",
        "https://access.redhat.com/security/cve/CVE-2026-63829",
        "https://access.redhat.com/security/cve/CVE-2026-63992",
        "https://access.redhat.com/security/cve/CVE-2026-63994",
        "https://access.redhat.com/security/cve/CVE-2026-68432",
        "https://access.redhat.com/security/cve/CVE-2026-72052",
        "https://access.redhat.com/security/cve/CVE-2026-72255",
        "https://access.redhat.com/security/cve/CVE-2026-74516",
        "https://access.redhat.com/security/cve/CVE-2026-74569",
        "https://access.redhat.com/security/cve/CVE-2026-74669",
        "https://access.redhat.com/security/cve/CVE-2026-74744",
        "https://access.redhat.com/security/cve/CVE-2026-74746",
        "https://access.redhat.com/security/cve/CVE-2026-80921",
        "https://access.redhat.com/security/cve/CVE-2026-89481",
        "https://access.redhat.com/security/cve/CVE-2026-89972",
        "https://access.redhat.com/security/cve/CVE-2026-90227",
        "https://access.redhat.com/security/cve/CVE-2026-97417",
        "https://bugzilla.redhat.com/2404123",
        "https://bugzilla.redhat.com/2418819",
        "https://bugzilla.redhat.com/2425013",
        "https://bugzilla.redhat.com/2425209",
        "https://bugzilla.redhat.com/2436789",
        "https://bugzilla.redhat.com/2482129",
        "https://bugzilla.redhat.com/2482143",
        "https://bugzilla.redhat.com/2486979",
        "https://bugzilla.redhat.com/2492276",
        "https://bugzilla.redhat.com/2492364",
        "https://bugzilla.redhat.com/2492728",
        "https://bugzilla.redhat.com/2492853",
        "https://bugzilla.redhat.com/2502230",
        "https://bugzilla.redhat.com/2502241",
        "https://bugzilla.redhat.com/2502431",
        "https://bugzilla.redhat.com/2502444",
        "https://bugzilla.redhat.com/2514441",
        "https://bugzilla.redhat.com/2516306",
        "https://bugzilla.redhat.com/2516717",
        "https://bugzilla.redhat.com/2516998",
        "https://bugzilla.redhat.com/2517052",
        "https://bugzilla.redhat.com/2521375",
        "https://bugzilla.redhat.com/2524431",
        "https://bugzilla.redhat.com/2524483",
        "https://bugzilla.redhat.com/2531066",
        "https://bugzilla.redhat.com/2532184",
        "https://bugzilla.redhat.com/2535140",
        "https://bugzilla.redhat.com/2536346",
        "https://bugzilla.redhat.com/2540479",
        "https://errata.almalinux.org/8/ALSA-2026-75746.html"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 88992,
  "published_at": "2026-10-05T00:00:00+00:00"
}