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GHSA-W58M-8MJ8-HH8W

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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

fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()

In ntfs_fill_super(), the fc->fs_private pointer is set to NULL without first freeing the memory it points to. This causes the subsequent call to ntfs_fs_free() to skip freeing the ntfs_mount_options structure.

This results in a kmemleak report:

unreferenced object 0xff1100015378b800 (size 32): comm "mount", pid 582, jiffies 4294890685 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 ed ff ed ff 00 04 00 00 ................ backtrace (crc ed541d8c): __kmalloc_cache_noprof+0x424/0x5a0 __ntfs_init_fs_context+0x47/0x590 alloc_fs_context+0x5d8/0x960 __x64_sys_fsopen+0xb1/0x190 do_syscall_64+0x50/0x1f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e

This issue can be reproduced using the following commands: fallocate -l 100M test.file mount test.file /tmp/test

Since sbi->options is duplicated from fc->fs_private and does not directly use the memory allocated for fs_private, it is unnecessary to set fc->fs_private to NULL.

Additionally, this patch simplifies the code by utilizing the helper function put_mount_options() instead of open-coding the cleanup logic.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71312"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:16:43Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()\n\nIn ntfs_fill_super(), the fc-\u003efs_private pointer is set to NULL without\nfirst freeing the memory it points to. This causes the subsequent call to\nntfs_fs_free() to skip freeing the ntfs_mount_options structure.\n\nThis results in a kmemleak report:\n\n  unreferenced object 0xff1100015378b800 (size 32):\n    comm \"mount\", pid 582, jiffies 4294890685\n    hex dump (first 32 bytes):\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n      00 00 00 00 00 00 00 00 ed ff ed ff 00 04 00 00  ................\n    backtrace (crc ed541d8c):\n      __kmalloc_cache_noprof+0x424/0x5a0\n      __ntfs_init_fs_context+0x47/0x590\n      alloc_fs_context+0x5d8/0x960\n      __x64_sys_fsopen+0xb1/0x190\n      do_syscall_64+0x50/0x1f0\n      entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThis issue can be reproduced using the following commands:\n        fallocate -l 100M test.file\n        mount test.file /tmp/test\n\nSince sbi-\u003eoptions is duplicated from fc-\u003efs_private and does not\ndirectly use the memory allocated for fs_private, it is unnecessary to\nset fc-\u003efs_private to NULL.\n\nAdditionally, this patch simplifies the code by utilizing the helper\nfunction put_mount_options() instead of open-coding the cleanup logic.",
  "id": "GHSA-w58m-8mj8-hh8w",
  "modified": "2026-05-27T15:33:10Z",
  "published": "2026-05-27T15:33:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71312"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dac871d833b09495198dcac81d2ebaa8db11acbc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7edab0cee03a1cbe0e55a7bcab8d2d8b6b74278"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-71312 (GCVE-0-2025-71312)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:24 – Updated: 2026-05-27 12:24

Title

fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()

Summary

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super() In ntfs_fill_super(), the fc->fs_private pointer is set to NULL without first freeing the memory it points to. This causes the subsequent call to ntfs_fs_free() to skip freeing the ntfs_mount_options structure. This results in a kmemleak report: unreferenced object 0xff1100015378b800 (size 32): comm "mount", pid 582, jiffies 4294890685 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 ed ff ed ff 00 04 00 00 ................ backtrace (crc ed541d8c): __kmalloc_cache_noprof+0x424/0x5a0 __ntfs_init_fs_context+0x47/0x590 alloc_fs_context+0x5d8/0x960 __x64_sys_fsopen+0xb1/0x190 do_syscall_64+0x50/0x1f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e This issue can be reproduced using the following commands: fallocate -l 100M test.file mount test.file /tmp/test Since sbi->options is duplicated from fc->fs_private and does not directly use the memory allocated for fs_private, it is unnecessary to set fc->fs_private to NULL. Additionally, this patch simplifies the code by utilizing the helper function put_mount_options() instead of open-coding the cleanup logic.

Severity

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/dac871d833b094951…
https://git.kernel.org/stable/c/f7edab0cee03a1cbe…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: aee4d5a521e94f658e46c904e08a473daa9c8fc0 , < dac871d833b09495198dcac81d2ebaa8db11acbc (git) Affected: aee4d5a521e94f658e46c904e08a473daa9c8fc0 , < f7edab0cee03a1cbe0e55a7bcab8d2d8b6b74278 (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ntfs3/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "aee4d5a521e94f658e46c904e08a473daa9c8fc0",
              "versionType": "git"
            },
            {
              "lessThan": "f7edab0cee03a1cbe0e55a7bcab8d2d8b6b74278",
              "status": "affected",
              "version": "aee4d5a521e94f658e46c904e08a473daa9c8fc0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ntfs3/super.c"
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
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              "negate": false,
              "operator": "OR"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()\n\nIn ntfs_fill_super(), the fc-\u003efs_private pointer is set to NULL without\nfirst freeing the memory it points to. This causes the subsequent call to\nntfs_fs_free() to skip freeing the ntfs_mount_options structure.\n\nThis results in a kmemleak report:\n\n  unreferenced object 0xff1100015378b800 (size 32):\n    comm \"mount\", pid 582, jiffies 4294890685\n    hex dump (first 32 bytes):\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n      00 00 00 00 00 00 00 00 ed ff ed ff 00 04 00 00  ................\n    backtrace (crc ed541d8c):\n      __kmalloc_cache_noprof+0x424/0x5a0\n      __ntfs_init_fs_context+0x47/0x590\n      alloc_fs_context+0x5d8/0x960\n      __x64_sys_fsopen+0xb1/0x190\n      do_syscall_64+0x50/0x1f0\n      entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThis issue can be reproduced using the following commands:\n        fallocate -l 100M test.file\n        mount test.file /tmp/test\n\nSince sbi-\u003eoptions is duplicated from fc-\u003efs_private and does not\ndirectly use the memory allocated for fs_private, it is unnecessary to\nset fc-\u003efs_private to NULL.\n\nAdditionally, this patch simplifies the code by utilizing the helper\nfunction put_mount_options() instead of open-coding the cleanup logic."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:24:03.532Z",
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        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/f7edab0cee03a1cbe0e55a7bcab8d2d8b6b74278"
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      ],
      "title": "fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
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    "cveId": "CVE-2025-71312",
    "datePublished": "2026-05-27T12:24:03.532Z",
    "dateReserved": "2026-05-27T12:23:27.414Z",
    "dateUpdated": "2026-05-27T12:24:03.532Z",
    "state": "PUBLISHED"
  },
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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GHSA-W58M-8MJ8-HH8W

CVE-2025-71312 (GCVE-0-2025-71312)

Tags

Sightings

Nomenclature