CVE-2025-40137 (GCVE-0-2025-40137)
Vulnerability from cvelistv5
Published
2025-11-12 10:23
Modified
2025-11-12 10:23
Severity ?
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
References
Impacted products
Vendor Product Version
Linux Linux Version: 92dffd01790a5219d234fc83c3ba854f4490b7f4
Version: 92dffd01790a5219d234fc83c3ba854f4490b7f4
Version: 92dffd01790a5219d234fc83c3ba854f4490b7f4
Version: 92dffd01790a5219d234fc83c3ba854f4490b7f4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "programFiles": [
            "fs/f2fs/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "3.19"
            },
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              "lessThan": "3.19",
              "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"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.112",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.12.53",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.3",
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                  "vulnerable": true
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18-rc1",
                  "versionStartIncluding": "3.19",
                  "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": "2025-11-12T10:23:23.624Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/83a8e4efea022506a0e049e7206bdf8be9f78148"
        },
        {
          "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"
      }
    }
  },
  "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": "2025-11-12T10:23:23.624Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40137\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-11-12T11:15:43.440\",\"lastModified\":\"2025-11-12T16:19:12.850\",\"vulnStatus\":\"Awaiting Analysis\",\"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\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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