CVE-2023-54124 (GCVE-0-2023-54124)
Vulnerability from cvelistv5
Published
2025-12-24 13:06
Modified
2025-12-24 13:06
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to drop all dirty pages during umount() if cp_error is set xfstest generic/361 reports a bug as below: f2fs_bug_on(sbi, sbi->fsync_node_num); kernel BUG at fs/f2fs/super.c:1627! RIP: 0010:f2fs_put_super+0x3a8/0x3b0 Call Trace: generic_shutdown_super+0x8c/0x1b0 kill_block_super+0x2b/0x60 kill_f2fs_super+0x87/0x110 deactivate_locked_super+0x39/0x80 deactivate_super+0x46/0x50 cleanup_mnt+0x109/0x170 __cleanup_mnt+0x16/0x20 task_work_run+0x65/0xa0 exit_to_user_mode_prepare+0x175/0x190 syscall_exit_to_user_mode+0x25/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc During umount(), if cp_error is set, f2fs_wait_on_all_pages() should not stop waiting all F2FS_WB_CP_DATA pages to be writebacked, otherwise, fsync_node_num can be non-zero after f2fs_wait_on_all_pages() causing this bug. In this case, to avoid deadloop in f2fs_wait_on_all_pages(), it needs to drop all dirty pages rather than redirtying them.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/checkpoint.c",
            "fs/f2fs/data.c"
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          "vendor": "Linux",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.4.244",
              "versionType": "semver"
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              "version": "5.10.181",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.113",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.30",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.3.4",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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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 drop all dirty pages during umount() if cp_error is set\n\nxfstest generic/361 reports a bug as below:\n\nf2fs_bug_on(sbi, sbi-\u003efsync_node_num);\n\nkernel BUG at fs/f2fs/super.c:1627!\nRIP: 0010:f2fs_put_super+0x3a8/0x3b0\nCall Trace:\n generic_shutdown_super+0x8c/0x1b0\n kill_block_super+0x2b/0x60\n kill_f2fs_super+0x87/0x110\n deactivate_locked_super+0x39/0x80\n deactivate_super+0x46/0x50\n cleanup_mnt+0x109/0x170\n __cleanup_mnt+0x16/0x20\n task_work_run+0x65/0xa0\n exit_to_user_mode_prepare+0x175/0x190\n syscall_exit_to_user_mode+0x25/0x50\n do_syscall_64+0x4c/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nDuring umount(), if cp_error is set, f2fs_wait_on_all_pages() should\nnot stop waiting all F2FS_WB_CP_DATA pages to be writebacked, otherwise,\nfsync_node_num can be non-zero after f2fs_wait_on_all_pages() causing\nthis bug.\n\nIn this case, to avoid deadloop in f2fs_wait_on_all_pages(), it needs\nto drop all dirty pages rather than redirtying them."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-24T13:06:43.290Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/92575f05a32dafb16348bfa5e62478118a9be069"
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          "url": "https://git.kernel.org/stable/c/4ceedc2f8bdffb82e40b7d1bb912304f8e157cb1"
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          "url": "https://git.kernel.org/stable/c/ad87bd313f70b51e48019d5ce2d02d73152356b3"
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          "url": "https://git.kernel.org/stable/c/d8f4ad5f3979dbd8e6251259562f12472717883a"
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        },
        {
          "url": "https://git.kernel.org/stable/c/c9b3649a934d131151111354bcbb638076f03a30"
        }
      ],
      "title": "f2fs: fix to drop all dirty pages during umount() if cp_error is set",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54124",
    "datePublished": "2025-12-24T13:06:43.290Z",
    "dateReserved": "2025-12-24T13:02:52.521Z",
    "dateUpdated": "2025-12-24T13:06:43.290Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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