{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-43376",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-43376",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-08T14:21:25.854Z",
    "updatedAt": "2026-08-05T12:27:35.730Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "ksmbd: fix use-after-free by using call_rcu() for oplock_info",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free by using call_rcu() for oplock_info\n\nksmbd currently frees oplock_info immediately using kfree(), even\nthough it is accessed under RCU read-side critical sections in places\nlike opinfo_get() and proc_show_files().\n\nSince there is no RCU grace period delay between nullifying the pointer\nand freeing the memory, a reader can still access oplock_info\nstructure after it has been freed. This can leads to a use-after-free\nespecially in opinfo_get() where atomic_inc_not_zero() is called on\nalready freed memory.\n\nFix this by switching to deferred freeing using call_rcu().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "296cb5457cc6f4a754c4ae29855f8a253d52bcc6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "302fef75512b2c8329a3f5efab1ae7ba2562387a"
            },
            {
              "version": "d54ab1520d43e95f9b2e22d7a05fc9614192e5a5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "08aa9f3c8cf4d0bee44df540dfe34e8d64069f2c"
            },
            {
              "version": "18b4fac5ef17f77fed9417d22210ceafd6525fc7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1d6abf145615dbfe267ce3b0a271f95e3780e18e"
            },
            {
              "version": "18b4fac5ef17f77fed9417d22210ceafd6525fc7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ce8507ee82c888126d8e7565e27c016308d24cde"
            },
            {
              "version": "18b4fac5ef17f77fed9417d22210ceafd6525fc7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1dfd062caa165ec9d7ee0823087930f3ab8a6294"
            },
            {
              "version": "d73686367ad68534257cd88a36ca3c52cb8b81d8",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.6.88",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.130"
            },
            {
              "version": "6.12.25",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.78"
            },
            {
              "version": "6.14.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.15"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.15"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.78",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.19",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}