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CVE-2026-89482 nvme-tcp: do not accept C2HData based on blk_rq_payload_bytes() alone

🗓️ 11 Sep 2026 19:43:37Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 38 Views

Wild memory access in Linux nvme-tcp when C2HData received for WRITE_ZEROES without segment check.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/nvme/host/tcp.c"
    ],
    "versions": [
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "32ea8ce96b9bd797c59c351ce490ffd97adaa8c0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "dd8906bb8f8d5bf1c9f861e1382c82b87bfe7cab",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "7ed0b61bbc145988be292c4d3ec580aebd8d2bcd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "b96e1ff75e5c0ad6e077ac002b1d30b0a2b49528",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "b36161701cb366f416afdcf70771d432a7c74753",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "6a01b58263108eaf9869bb6f82f07709240c6589",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "641ad3a30ba560f0a9a610376c568d7b75d2a2aa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25e5cb780e62bde432b401f312bb847edc78b432",
        "lessThan": "3a4aa9e6ad3e35f8e24d5eaf38ee4d437075fb36",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f507ae6e33cbe56c4e3fe000434fc0ecc263d098",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b1458c16f4e26e87492e58e4d24a1873bd09232a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.4.36",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.6.8",
        "lessThan": "5.7",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/nvme/host/tcp.c"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.270",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.221",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "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-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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14 Sep 2026 12:00Current
CVSS 3.19.8
EPSS0.00755
38