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CVE-2026-89793

🗓️ 16 Sep 2026 09:54:33Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 12 Views

ublk in Linux kernel: unprivileged mprotect() corrupts io_desc via uncleared VM_MAYWRITE.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-89793 ublk: clear VM_MAYWRITE on read-only ublk char device mmap
16 Sep 202609:54
cvelist
debiancve
Debian CVE
CVE-2026-89793
16 Sep 202609:54
debiancve
euvd
EUVD
EUVD-2026-80589
16 Sep 202609:54
euvd
nvd
NVD
CVE-2026-89793
16 Sep 202610:16
nvd
osv
OSV
DEBIAN-CVE-2026-89793
16 Sep 202610:16
osv
Vulners
CNA
Node
OR
OR
linuxlinux_kernelRange06.6.157
linuxlinux_kernelRange06.12.110
linuxlinux_kernelRange06.18.51
linuxlinux_kernelRange07.2.5
OR
linuxlinux_kernelRange6.6.06.6.157
linuxlinux_kernelRange6.7.06.12.110
linuxlinux_kernelRange6.13.06.18.51
linuxlinux_kernelRange6.19.07.2.5
linuxlinux_kernelRange7.3.07.3-rc2
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/block/ublk_drv.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "be41733c24be58e2a1ef718c80fafdfb98a40d5e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "5befd06a72216869b607cf7724a4f16c6a2d3999",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "e373c1acdbcf88cec533ece9f589020adaed0a78",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "fa5e1bc673ca59722608af67b27e65dba0c97926",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "6e2b571b0a54755b06e092501913e1dfefe75d6c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0",
        "lessThan": "6.6.157",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "6.12.110",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "6.18.51",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "7.2.5",
        "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/block/ublk_drv.c"
    ],
    "versions": [
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.51",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.5",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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16 Sep 2026 15:18Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.8
EPSS0.00209
12