CVE-2023-53262

Estado: ModificadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix scheduling while atomic in decompression path

Detalles técnicos trazas, registros y código del informe original

[   16.945668][    C0] Call trace:
[   16.945678][    C0]  dump_backtrace+0x110/0x204
[   16.945706][    C0]  dump_stack_lvl+0x84/0xbc
[   16.945735][    C0]  __schedule_bug+0xb8/0x1ac
[   16.945756][    C0]  __schedule+0x724/0xbdc
[   16.945778][    C0]  schedule+0x154/0x258
[   16.945793][    C0]  bit_wait_io+0x48/0xa4
[   16.945808][    C0]  out_of_line_wait_on_bit+0x114/0x198
[   16.945824][    C0]  __sync_dirty_buffer+0x1f8/0x2e8
[   16.945853][    C0]  __f2fs_commit_super+0x140/0x1f4
[   16.945881][    C0]  f2fs_commit_super+0x110/0x28c
[   16.945898][    C0]  f2fs_handle_error+0x1f4/0x2f4
[   16.945917][    C0]  f2fs_decompress_cluster+0xc4/0x450
[   16.945942][    C0]  f2fs_end_read_compressed_page+0xc0/0xfc
[   16.945959][    C0]  f2fs_handle_step_decompress+0x118/0x1cc
[   16.945978][    C0]  f2fs_read_end_io+0x168/0x2b0
[   16.945993][    C0]  bio_endio+0x25c/0x2c8
[   16.946015][    C0]  dm_io_dec_pending+0x3e8/0x57c
[   16.946052][    C0]  clone_endio+0x134/0x254
[   16.946069][    C0]  bio_endio+0x25c/0x2c8
[   16.946084][    C0]  blk_update_request+0x1d4/0x478
[   16.946103][    C0]  scsi_end_request+0x38/0x4cc
[   16.946129][    C0]  scsi_io_completion+0x94/0x184
[   16.946147][    C0]  scsi_finish_command+0xe8/0x154
[   16.946164][    C0]  scsi_complete+0x90/0x1d8
[   16.946181][    C0]  blk_done_softirq+0xa4/0x11c
[   16.946198][    C0]  _stext+0x184/0x614
[   16.946214][    C0]  __irq_exit_rcu+0x78/0x144
[   16.946234][    C0]  handle_domain_irq+0xd4/0x154
[   16.946260][    C0]  gic_handle_irq.33881+0x5c/0x27c
[   16.946281][    C0]  call_on_irq_stack+0x40/0x70
[   16.946298][    C0]  do_interrupt_handler+0x48/0xa4
[   16.946313][    C0]  el1_interrupt+0x38/0x68
[   16.946346][    C0]  el1h_64_irq_handler+0x20/0x30
[   16.946362][    C0]  el1h_64_irq+0x78/0x7c
[   16.946377][    C0]  finish_task_switch+0xc8/0x3d8
[   16.946394][    C0]  __schedule+0x600/0xbdc
[   16.946408][    C0]  preempt_schedule_common+0x34/0x5c
[   16.946423][    C0]  preempt_schedule+0x44/0x48
[   16.946438][    C0]  process_one_work+0x30c/0x550
[   16.946456][    C0]  worker_thread+0x414/0x8bc
[   16.946472][    C0]  kthread+0x16c/0x1e0
[   16.946486][    C0]  ret_from_fork+0x10/0x20

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.15%
Percentil entre todas las CVEs puntuadas: 4
Fecha de la puntuación: 4/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1499.004 Application or System Exploitationimpact75 %

Vulnerabilidad local en decompresión f2fs (AV:L, PR:L) que causa scheduling en contexto atómico, desencadenando crash/DoS del kernel según el stack trace y los privilegios requeridos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence Program Filter Network Traffic Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

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  "id": "CVE-2023-53262",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-53262",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-14T18:03:07.830489Z"
        }
      }
    ],
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        "type": "Primary",
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 1.8
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      {
        "type": "Secondary",
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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  "affected": [
    {
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      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "bff139b49d9f70c1ac5384aac94554846aa834de",
              "lessThan": "74f74c8b8419a289b85aa9c85e5f4d8c2cc9f5fb",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "977df5c13a4b253a718ec44a4eb957c612bf73f4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bff139b49d9f70c1ac5384aac94554846aa834de",
              "lessThan": "d2746c56dd2cc47f70cc3931977be556172c246d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bff139b49d9f70c1ac5384aac94554846aa834de",
              "lessThan": "1aa161e43106d46ca8e9a86f4aa28d420258134b",
              "versionType": "git"
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          ],
          "programFiles": [
            "fs/f2fs/compress.c",
            "fs/f2fs/f2fs.h",
            "fs/f2fs/super.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.28",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2.15",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "status": "unaffected",
              "version": "6.3.2",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/f2fs/compress.c",
            "fs/f2fs/f2fs.h",
            "fs/f2fs/super.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-09-15T15:15:53.647",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1aa161e43106d46ca8e9a86f4aa28d420258134b",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/74f74c8b8419a289b85aa9c85e5f4d8c2cc9f5fb",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/977df5c13a4b253a718ec44a4eb957c612bf73f4",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d2746c56dd2cc47f70cc3931977be556172c246d",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix scheduling while atomic in decompression path\n\n[   16.945668][    C0] Call trace:\n[   16.945678][    C0]  dump_backtrace+0x110/0x204\n[   16.945706][    C0]  dump_stack_lvl+0x84/0xbc\n[   16.945735][    C0]  __schedule_bug+0xb8/0x1ac\n[   16.945756][    C0]  __schedule+0x724/0xbdc\n[   16.945778][    C0]  schedule+0x154/0x258\n[   16.945793][    C0]  bit_wait_io+0x48/0xa4\n[   16.945808][    C0]  out_of_line_wait_on_bit+0x114/0x198\n[   16.945824][    C0]  __sync_dirty_buffer+0x1f8/0x2e8\n[   16.945853][    C0]  __f2fs_commit_super+0x140/0x1f4\n[   16.945881][    C0]  f2fs_commit_super+0x110/0x28c\n[   16.945898][    C0]  f2fs_handle_error+0x1f4/0x2f4\n[   16.945917][    C0]  f2fs_decompress_cluster+0xc4/0x450\n[   16.945942][    C0]  f2fs_end_read_compressed_page+0xc0/0xfc\n[   16.945959][    C0]  f2fs_handle_step_decompress+0x118/0x1cc\n[   16.945978][    C0]  f2fs_read_end_io+0x168/0x2b0\n[   16.945993][    C0]  bio_endio+0x25c/0x2c8\n[   16.946015][    C0]  dm_io_dec_pending+0x3e8/0x57c\n[   16.946052][    C0]  clone_endio+0x134/0x254\n[   16.946069][    C0]  bio_endio+0x25c/0x2c8\n[   16.946084][    C0]  blk_update_request+0x1d4/0x478\n[   16.946103][    C0]  scsi_end_request+0x38/0x4cc\n[   16.946129][    C0]  scsi_io_completion+0x94/0x184\n[   16.946147][    C0]  scsi_finish_command+0xe8/0x154\n[   16.946164][    C0]  scsi_complete+0x90/0x1d8\n[   16.946181][    C0]  blk_done_softirq+0xa4/0x11c\n[   16.946198][    C0]  _stext+0x184/0x614\n[   16.946214][    C0]  __irq_exit_rcu+0x78/0x144\n[   16.946234][    C0]  handle_domain_irq+0xd4/0x154\n[   16.946260][    C0]  gic_handle_irq.33881+0x5c/0x27c\n[   16.946281][    C0]  call_on_irq_stack+0x40/0x70\n[   16.946298][    C0]  do_interrupt_handler+0x48/0xa4\n[   16.946313][    C0]  el1_interrupt+0x38/0x68\n[   16.946346][    C0]  el1h_64_irq_handler+0x20/0x30\n[   16.946362][    C0]  el1h_64_irq+0x78/0x7c\n[   16.946377][    C0]  finish_task_switch+0xc8/0x3d8\n[   16.946394][    C0]  __schedule+0x600/0xbdc\n[   16.946408][    C0]  preempt_schedule_common+0x34/0x5c\n[   16.946423][    C0]  preempt_schedule+0x44/0x48\n[   16.946438][    C0]  process_one_work+0x30c/0x550\n[   16.946456][    C0]  worker_thread+0x414/0x8bc\n[   16.946472][    C0]  kthread+0x16c/0x1e0\n[   16.946486][    C0]  ret_from_fork+0x10/0x20"
    }
  ],
  "lastModified": "2026-06-17T06:44:40.143",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CEE0A222-2E7E-4494-A981-F028A2438ED0",
              "versionEndExcluding": "6.1.28",
              "versionStartIncluding": "6.0"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3844A90B-940D-46C3-8D7B-9FF63F1AFC2F",
              "versionEndExcluding": "6.2.15",
              "versionStartIncluding": "6.2"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "38F6F330-91A0-4675-8B90-6F950471A7CC",
              "versionEndExcluding": "6.3.2",
              "versionStartIncluding": "6.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}