fkie_cve-2025-21945
Vulnerability from fkie_nvd
Published
2025-04-01 16:15
Modified
2025-11-03 20:17
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb2_lock If smb_lock->zero_len has value, ->llist of smb_lock is not delete and flock is old one. It will cause use-after-free on error handling routine.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/410ce35a2ed6d0e114132bba29af49b69880c8c7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/636e021646cf9b52ddfea7c809b018e91f2188cbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/84d2d1641b71dec326e8736a749b7ee76a9599fcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8573571060ca466cbef2c6f03306b2cc7b883506Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0609097fd10d618aed4864038393dd75131289ePatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14


To clipboard 

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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in smb2_lock\n\nIf smb_lock-\u003ezero_len has value, -\u003ellist of smb_lock is not delete and\nflock is old one. It will cause use-after-free on error handling\nroutine."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: se corrige el use-after-free en smb2_lock. Si smb_lock-\u0026gt;zero_len tiene valor, -\u0026gt;llist de smb_lock no se elimina y Flock es antiguo. Esto provocar\u00e1 el use-after-free en la rutina de gesti\u00f3n de errores."
    }
  ],
  "id": "CVE-2025-21945",
  "lastModified": "2025-11-03T20:17:31.417",
  "metrics": {
    "cvssMetricV31": [
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          "attackComplexity": "LOW",
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          "confidentialityImpact": "HIGH",
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  "published": "2025-04-01T16:15:25.633",
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  "vulnStatus": "Modified",
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}


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