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CVE-2026-43278 dm: clear cloned request bio pointer when last clone bio completes

🗓️ 06 May 2026 11:29:00Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

CVE-2026-43278: Clear the clone request bio pointer after the last clone bio to prevent use-after-free.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/md/dm-rq.c"
    ],
    "versions": [
      {
        "version": "ab3e1d3bbab9e973aeb4dd4603251578658a47ff",
        "lessThan": "8d9ddad561136f7e6a9346767bf97b4d79e38e67",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab3e1d3bbab9e973aeb4dd4603251578658a47ff",
        "lessThan": "7daf279c674d515fb22a727a7bbc92aeb35c5442",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab3e1d3bbab9e973aeb4dd4603251578658a47ff",
        "lessThan": "e2e738e8dfbbf83bd2bae0467ec4420cc52da42a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab3e1d3bbab9e973aeb4dd4603251578658a47ff",
        "lessThan": "b1c1a2637ebd675aa2d71fee8c70da8791d73850",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab3e1d3bbab9e973aeb4dd4603251578658a47ff",
        "lessThan": "83d72091804600ead96dc9e9f518ea56cb4942f6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab3e1d3bbab9e973aeb4dd4603251578658a47ff",
        "lessThan": "fb8a6c18fb9a6561f7a15b58b272442b77a242dd",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/md/dm-rq.c"
    ],
    "versions": [
      {
        "version": "6.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.165",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.16",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.6",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:21Current
CVSS 3.17.8
EPSS0.00013
27