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CVE-2026-99174 ext4: free the sbi after a grace period

🗓️ 28 Oct 2026 10:35:28Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Use-after-free in Linux kernel ext4 when ext4_put_super() frees the sbi without a grace period.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-99174
28 Oct 202611:33
–circl
cve
CVE
CVE-2026-99174
28 Oct 202610:35
–cve
debiancve
Debian CVE
CVE-2026-99174
28 Oct 202618:47
–debiancve
euvd
EUVD
EUVD-2026-111926
28 Oct 202610:35
–euvd
nvd
NVD
CVE-2026-99174
28 Oct 202611:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-99174
28 Oct 202611:17
–osv_debian
ptsecurity
Positive Technologies
PT-2026-128167
28 Oct 202600:00
–ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ext4/ext4.h",
      "fs/ext4/extents-test.c",
      "fs/ext4/extents.c",
      "fs/ext4/extents_status.c",
      "fs/ext4/extents_status.h",
      "fs/ext4/super.c"
    ],
    "versions": [
      {
        "version": "6493792d3299b3e33f887ef8a150099d271faf9c",
        "lessThan": "80d5db1686b05fad6f384be017714297d828a714",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6493792d3299b3e33f887ef8a150099d271faf9c",
        "lessThan": "87d29b8b849738d52fe820d495fa0aa2d5a1ec82",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6493792d3299b3e33f887ef8a150099d271faf9c",
        "lessThan": "c17b44266a1f9fcb49b894d4611d1254bf1aa313",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ext4/ext4.h",
      "fs/ext4/extents-test.c",
      "fs/ext4/extents.c",
      "fs/ext4/extents_status.c",
      "fs/ext4/extents_status.h",
      "fs/ext4/super.c"
    ],
    "versions": [
      {
        "version": "5.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.59",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.13",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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