nvd-json-data-feeds/CVE-2025/CVE-2025-216xx/CVE-2025-21672.json

{
  "id": "CVE-2025-21672",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-01-31T12:15:28.360",
  "lastModified": "2025-02-03T20:04:22.147",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix merge preference rule failure condition\n\nsyzbot reported a lock held when returning to userspace[1].  This is\nbecause if argc is less than 0 and the function returns directly, the held\ninode lock is not released.\n\nFix this by store the error in ret and jump to done to clean up instead of\nreturning directly.\n\n[dh: Modified Lizhi Xu's original patch to make it honour the error code\nfrom afs_split_string()]\n\n[1]\nWARNING: lock held when returning to user space!\n6.13.0-rc3-syzkaller-00209-g499551201b5f #0 Not tainted\n------------------------------------------------\nsyz-executor133/5823 is leaving the kernel with locks still held!\n1 lock held by syz-executor133/5823:\n #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]\n #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: afs_proc_addr_prefs_write+0x2bb/0x14e0 fs/afs/addr_prefs.c:388"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: afs: Se corrige la condici\u00f3n de error de la regla de preferencia de fusi\u00f3n. syzbot inform\u00f3 de un bloqueo retenido al volver al espacio de usuario[1]. Esto se debe a que si argc es menor que 0 y la funci\u00f3n retorna directamente, el bloqueo del inodo retenido no se libera. Corrija esto almacenando el error en ret y saltando a done para limpiar en lugar de regresar directamente. [dh: Se modific\u00f3 el parche original de Lizhi Xu para que respete el c\u00f3digo de error de afs_split_string()] [1] ADVERTENCIA: \u00a1bloqueo retenido al volver al espacio de usuario! 6.13.0-rc3-syzkaller-00209-g499551201b5f #0 No contaminado ------------------------------------------------ \u00a1syz-executor133/5823 est\u00e1 abandonando el kernel con bloqueos a\u00fan retenidos! 1 bloqueo mantenido por syz-executor133/5823: #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, en: inode_lock include/linux/fs.h:818 [en l\u00ednea] #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, en: afs_proc_addr_prefs_write+0x2bb/0x14e0 fs/afs/addr_prefs.c:388"
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
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      "description": [
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          "value": "CWE-667"
        }
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      "url": "https://git.kernel.org/stable/c/17a4fde81d3a7478d97d15304a6d61094a10c2e3",
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