CVE-2025-40137 (GCVE-0-2025-40137)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:23 – Updated: 2026-05-11 21:43
VLAI
Title
f2fs: fix to truncate first page in error path of f2fs_truncate()
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate first page in error path of f2fs_truncate() syzbot reports a bug as below: loop0: detected capacity change from 0 to 40427 F2FS-fs (loop0): Wrong SSA boundary, start(3584) end(4096) blocks(3072) F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop0): invalid crc value F2FS-fs (loop0): f2fs_convert_inline_folio: corrupted inline inode ino=3, i_addr[0]:0x1601, run fsck to fix. ------------[ cut here ]------------ kernel BUG at fs/inode.c:753! RIP: 0010:clear_inode+0x169/0x190 fs/inode.c:753 Call Trace: <TASK> evict+0x504/0x9c0 fs/inode.c:810 f2fs_fill_super+0x5612/0x6fa0 fs/f2fs/super.c:5047 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692 vfs_get_tree+0x8f/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4324 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f During f2fs_evict_inode(), clear_inode() detects that we missed to truncate all page cache before destorying inode, that is because in below path, we will create page #0 in cache, but missed to drop it in error path, let's fix it. - evict - f2fs_evict_inode - f2fs_truncate - f2fs_convert_inline_inode - f2fs_grab_cache_folio : create page #0 in cache - f2fs_convert_inline_folio : sanity check failed, return -EFSCORRUPTED - clear_inode detects that inode->i_data.nrpages is not zero
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6843 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 92dffd01790a5219d234fc83c3ba854f4490b7f4 , < 83a8e4efea022506a0e049e7206bdf8be9f78148 (git)
Affected: 92dffd01790a5219d234fc83c3ba854f4490b7f4 , < a7b7ebdd7045a36454b3e388a2ecf50344fad9e6 (git)
Affected: 92dffd01790a5219d234fc83c3ba854f4490b7f4 , < 3b0c8908faa18cded84d64822882a830ab1f4d26 (git)
Affected: 92dffd01790a5219d234fc83c3ba854f4490b7f4 , < 9251a9e6e871cb03c4714a18efa8f5d4a8818450 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.19
Unaffected: 0 , < 3.19 (semver)
Unaffected: 6.6.112 , ≤ 6.6.* (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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                  "vulnerable": true
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to truncate first page in error path of f2fs_truncate()\n\nsyzbot reports a bug as below:\n\nloop0: detected capacity change from 0 to 40427\nF2FS-fs (loop0): Wrong SSA boundary, start(3584) end(4096) blocks(3072)\nF2FS-fs (loop0): Can\u0027t find valid F2FS filesystem in 1th superblock\nF2FS-fs (loop0): invalid crc value\nF2FS-fs (loop0): f2fs_convert_inline_folio: corrupted inline inode ino=3, i_addr[0]:0x1601, run fsck to fix.\n------------[ cut here ]------------\nkernel BUG at fs/inode.c:753!\nRIP: 0010:clear_inode+0x169/0x190 fs/inode.c:753\nCall Trace:\n \u003cTASK\u003e\n evict+0x504/0x9c0 fs/inode.c:810\n f2fs_fill_super+0x5612/0x6fa0 fs/f2fs/super.c:5047\n get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692\n vfs_get_tree+0x8f/0x2b0 fs/super.c:1815\n do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808\n do_mount fs/namespace.c:4136 [inline]\n __do_sys_mount fs/namespace.c:4347 [inline]\n __se_sys_mount+0x317/0x410 fs/namespace.c:4324\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nDuring f2fs_evict_inode(), clear_inode() detects that we missed to truncate\nall page cache before destorying inode, that is because in below path, we\nwill create page #0 in cache, but missed to drop it in error path, let\u0027s fix\nit.\n\n- evict\n - f2fs_evict_inode\n  - f2fs_truncate\n   - f2fs_convert_inline_inode\n    - f2fs_grab_cache_folio\n    : create page #0 in cache\n    - f2fs_convert_inline_folio\n    : sanity check failed, return -EFSCORRUPTED\n  - clear_inode detects that inode-\u003ei_data.nrpages is not zero"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:43:28.448Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/83a8e4efea022506a0e049e7206bdf8be9f78148"
        },
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          "url": "https://git.kernel.org/stable/c/a7b7ebdd7045a36454b3e388a2ecf50344fad9e6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b0c8908faa18cded84d64822882a830ab1f4d26"
        },
        {
          "url": "https://git.kernel.org/stable/c/9251a9e6e871cb03c4714a18efa8f5d4a8818450"
        }
      ],
      "title": "f2fs: fix to truncate first page in error path of f2fs_truncate()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40137",
    "datePublished": "2025-11-12T10:23:23.624Z",
    "dateReserved": "2025-04-16T07:20:57.171Z",
    "dateUpdated": "2026-05-11T21:43:28.448Z",
    "state": "PUBLISHED"
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      "date": "2026-10-22",
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      "percentile": "0.11111"
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                "product": "Linux",
                "programFiles": [
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                ],
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                "vendor": "Linux",
                "versions": [
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                    "versionType": "git"
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                  {
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                    "versionType": "git"
                  }
                ]
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              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "fs/f2fs/file.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "3.19"
                  },
                  {
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                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.112",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.53",
                    "versionType": "semver"
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                    "lessThanOrEqual": "6.17.*",
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                    "version": "6.17.3",
                    "versionType": "semver"
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to truncate first page in error path of f2fs_truncate()\n\nsyzbot reports a bug as below:\n\nloop0: detected capacity change from 0 to 40427\nF2FS-fs (loop0): Wrong SSA boundary, start(3584) end(4096) blocks(3072)\nF2FS-fs (loop0): Can\u0027t find valid F2FS filesystem in 1th superblock\nF2FS-fs (loop0): invalid crc value\nF2FS-fs (loop0): f2fs_convert_inline_folio: corrupted inline inode ino=3, i_addr[0]:0x1601, run fsck to fix.\n------------[ cut here ]------------\nkernel BUG at fs/inode.c:753!\nRIP: 0010:clear_inode+0x169/0x190 fs/inode.c:753\nCall Trace:\n \u003cTASK\u003e\n evict+0x504/0x9c0 fs/inode.c:810\n f2fs_fill_super+0x5612/0x6fa0 fs/f2fs/super.c:5047\n get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692\n vfs_get_tree+0x8f/0x2b0 fs/super.c:1815\n do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808\n do_mount fs/namespace.c:4136 [inline]\n __do_sys_mount fs/namespace.c:4347 [inline]\n __se_sys_mount+0x317/0x410 fs/namespace.c:4324\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nDuring f2fs_evict_inode(), clear_inode() detects that we missed to truncate\nall page cache before destorying inode, that is because in below path, we\nwill create page #0 in cache, but missed to drop it in error path, let\u0027s fix\nit.\n\n- evict\n - f2fs_evict_inode\n  - f2fs_truncate\n   - f2fs_convert_inline_inode\n    - f2fs_grab_cache_folio\n    : create page #0 in cache\n    - f2fs_convert_inline_folio\n    : sanity check failed, return -EFSCORRUPTED\n  - clear_inode detects that inode-\u003ei_data.nrpages is not zero"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nf2fs: correcci\u00f3n para truncar la primera p\u00e1gina en la ruta de error de f2fs_truncate()\n\nsyzbot informa un error como sigue:\n\nloop0: cambio de capacidad detectado de 0 a 40427\nF2FS-fs (loop0): L\u00edmite SSA incorrecto, inicio(3584) fin(4096) bloques(3072)\nF2FS-fs (loop0): No se puede encontrar un sistema de archivos F2FS v\u00e1lido en el 1er superbloque\nF2FS-fs (loop0): valor crc inv\u00e1lido\nF2FS-fs (loop0): f2fs_convert_inline_folio: inodo en l\u00ednea corrupto ino=3, i_addr[0]:0x1601, ejecute fsck para corregir.\n------------[ cortar aqu\u00ed ]------------\n\u00a1BUG del kernel en fs/inode.c:753!\nRIP: 0010:clear_inode+0x169/0x190 fs/inode.c:753\nTraza de Llamada:\n \u003cTAREA\u003e\n evict+0x504/0x9c0 fs/inode.c:810\n f2fs_fill_super+0x5612/0x6fa0 fs/f2fs/super.c:5047\n get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692\n vfs_get_tree+0x8f/0x2b0 fs/super.c:1815\n do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808\n do_mount fs/namespace.c:4136 [en l\u00ednea]\n __do_sys_mount fs/namespace.c:4347 [en l\u00ednea]\n __se_sys_mount+0x317/0x410 fs/namespace.c:4324\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [en l\u00ednea]\n do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nDurante f2fs_evict_inode(), clear_inode() detecta que omitimos truncar toda la cach\u00e9 de p\u00e1ginas antes de destruir el inodo, eso es porque en la ruta siguiente, crearemos la p\u00e1gina #0 en la cach\u00e9, pero omitimos eliminarla en la ruta de error, vamos a corregirlo.\n\n- evict\n - f2fs_evict_inode\n  - f2fs_truncate\n   - f2fs_convert_inline_inode\n    - f2fs_grab_cache_folio\n    : crea la p\u00e1gina #0 en la cach\u00e9\n    - f2fs_convert_inline_folio\n    : la comprobaci\u00f3n de cordura fall\u00f3, devuelve -EFSCORRUPTED\n  - clear_inode detecta que inode-\u003ei_data.nrpages no es cero"
          }
        ],
        "id": "CVE-2025-40137",
        "lastModified": "2026-10-19T21:10:00.160",
        "metrics": {},
        "published": "2025-11-12T11:15:43.440",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/3b0c8908faa18cded84d64822882a830ab1f4d26"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/83a8e4efea022506a0e049e7206bdf8be9f78148"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9251a9e6e871cb03c4714a18efa8f5d4a8818450"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a7b7ebdd7045a36454b3e388a2ecf50344fad9e6"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:34:21+00:00",
      "cve": "CVE-2025-40137",
      "id": "CVE-2025-40137",
      "initial_release_date": "2025-11-12T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: f2fs: fix to truncate first page in error path of f2fs_truncate()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40137.json",
      "version": "3"
    }
  }
}



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