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CVE-2026-89503 ring-buffer: Fix subbuf resize race with ring_buffer_alloc_read_page()

🗓️ 11 Sep 2026 19:43:51Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 43 Views

Linux kernel ring-buffer race between subbuf resize and reader page allocation.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus
Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3187)
12 Oct 202600:00
–nessus
nessus
Tenable Nessus
Debian dsa-6568 : ata-modules-6.12.111+deb13-armmp-di - security update
16 Oct 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-89503
12 Sep 202600:00
–nessus
cve
CVE
CVE-2026-89503
11 Sep 202619:43
–cve
debian
Debian
[SECURITY] [DSA 6568-1] linux security update
16 Oct 202613:39
–debian
debiancve
Debian CVE
CVE-2026-89503
11 Sep 202619:43
–debiancve
euvd
EUVD
EUVD-2026-76409
11 Sep 202619:43
–euvd
nvd
NVD
CVE-2026-89503
11 Sep 202620:19
–nvd
opensuse
OPENSUSE Linux
kernel-devel-7.2.6-1.1 on GA media (moderate)
20 Sep 202600:00
–opensuse
osv_bell
osv_bell
BELL-CVE-2026-89503
15 Sep 202606:05
–osv_bell
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/ring_buffer.c"
    ],
    "versions": [
      {
        "version": "bce761d757452ba5eb77e11fecc37a04b67494e7",
        "lessThan": "2313ff69bd237aad264a5913907f374f958335a2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bce761d757452ba5eb77e11fecc37a04b67494e7",
        "lessThan": "2dc510957fe8fd098ab3c3147ebdf34d00cd2734",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bce761d757452ba5eb77e11fecc37a04b67494e7",
        "lessThan": "53106e9262a310ef2c9a9321168c03705940c678",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bce761d757452ba5eb77e11fecc37a04b67494e7",
        "lessThan": "e743527c5bfdceda1095bc0a9e596e2aebb6a9c3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/ring_buffer.c"
    ],
    "versions": [
      {
        "version": "6.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.112",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Oct 2026 08:47Current
CVSS 3.17.8
EPSS0.00163
43