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CVE-2026-68442

🗓️ 12 Aug 2026 00:07:31Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 11 Views

Btrfs extent map split propagates EXTENT_FLAG_LOGGING causing use-after-free in btrfs_free_extent_map.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-68442
12 Aug 202600:07
attackerkb
circl
Circl
CVE-2026-68442
12 Aug 202601:13
circl
cvelist
Cvelist
CVE-2026-68442 btrfs: don't propagate EXTENT_FLAG_LOGGING to split extent maps
12 Aug 202600:07
cvelist
euvd
EUVD
EUVD-2026-57050
12 Aug 202600:07
euvd
nvd
NVD
CVE-2026-68442
12 Aug 202600:17
nvd
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.86.12.101
linuxlinux_kernelRange6.13.06.18.42
linuxlinux_kernelRange6.19.07.1.6
linuxlinux_kernelRange7.2.07.2-rc5
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/btrfs/extent_map.c"
    ],
    "versions": [
      {
        "version": "f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9",
        "lessThan": "2a9246a424f45f33a1b8367052611ebe874868ad",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9",
        "lessThan": "9304713b70e7e1450e3a76e758836fe5391bfa95",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9",
        "lessThan": "0e465c63f103a5ce6849614d6bda048d70eebec8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9",
        "lessThan": "5eff4d5b17fa1950e80bfd1ba43dc0699e61a644",
        "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/btrfs/extent_map.c"
    ],
    "versions": [
      {
        "version": "6.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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12 Aug 2026 00:17Current
5.3Medium risk
Vulners AI Score5.3
11