CVE-2023-53294 (GCVE-0-2023-53294)
Vulnerability from cvelistv5
Published
2025-09-16 08:11
Modified
2025-09-16 08:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix null-ptr-deref on inode->i_op in ntfs_lookup() Syzbot reported a null-ptr-deref bug: ntfs3: loop0: Different NTFS' sector size (1024) and media sector size (512) ntfs3: loop0: Mark volume as dirty due to NTFS errors general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline] RIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2796 Call Trace: <TASK> d_splice_alias+0x122/0x3b0 fs/dcache.c:3191 lookup_open fs/namei.c:3391 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x10e6/0x2df0 fs/namei.c:3688 do_filp_open+0x264/0x4f0 fs/namei.c:3718 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_open fs/open.c:1334 [inline] __se_sys_open fs/open.c:1330 [inline] __x64_sys_open+0x221/0x270 fs/open.c:1330 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd If the MFT record of ntfs inode is not a base record, inode->i_op can be NULL. And a null-ptr-deref may happen: ntfs_lookup() dir_search_u() # inode->i_op is set to NULL d_splice_alias() __d_add() d_flags_for_inode() # inode->i_op->get_link null-ptr-deref Fix this by adding a Check on inode->i_op before calling the d_splice_alias() function.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/254e69f284d7270e0abdc023ee53b71401c3ba0c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2ba22cbc6a1cf4b58195adbee0b80262e53992d3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d69d5e2a81df94534bdb468bcdd26060fcb7191a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e78240bc4b94fc42854d65e657bb998100cc8e1b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f8d9e062a695a3665c4635c4f216a75912687598
Impacted products
Vendor Product Version
Linux Linux Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5
Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5
Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5
Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5
Version: 4342306f0f0d5ff4315a204d315c1b51b914fca5
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   Linux Linux Version: 5.15
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ntfs3/namei.c"
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          "vendor": "Linux",
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.112",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.29",
              "versionType": "semver"
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              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.16",
              "versionType": "semver"
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              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionEndExcluding": "5.15.112",
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                  "vulnerable": true
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.2.16",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.3",
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                  "versionEndExcluding": "6.4",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix null-ptr-deref on inode-\u003ei_op in ntfs_lookup()\n\nSyzbot reported a null-ptr-deref bug:\n\nntfs3: loop0: Different NTFS\u0027 sector size (1024) and media sector size\n(512)\nntfs3: loop0: Mark volume as dirty due to NTFS errors\ngeneral protection fault, probably for non-canonical address\n0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\nRIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline]\nRIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2796\nCall Trace:\n \u003cTASK\u003e\n d_splice_alias+0x122/0x3b0 fs/dcache.c:3191\n lookup_open fs/namei.c:3391 [inline]\n open_last_lookups fs/namei.c:3481 [inline]\n path_openat+0x10e6/0x2df0 fs/namei.c:3688\n do_filp_open+0x264/0x4f0 fs/namei.c:3718\n do_sys_openat2+0x124/0x4e0 fs/open.c:1310\n do_sys_open fs/open.c:1326 [inline]\n __do_sys_open fs/open.c:1334 [inline]\n __se_sys_open fs/open.c:1330 [inline]\n __x64_sys_open+0x221/0x270 fs/open.c:1330\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nIf the MFT record of ntfs inode is not a base record, inode-\u003ei_op can be\nNULL. And a null-ptr-deref may happen:\n\nntfs_lookup()\n    dir_search_u() # inode-\u003ei_op is set to NULL\n    d_splice_alias()\n        __d_add()\n            d_flags_for_inode() # inode-\u003ei_op-\u003eget_link null-ptr-deref\n\nFix this by adding a Check on inode-\u003ei_op before calling the\nd_splice_alias() function."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T08:11:26.926Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f8d9e062a695a3665c4635c4f216a75912687598"
        },
        {
          "url": "https://git.kernel.org/stable/c/d69d5e2a81df94534bdb468bcdd26060fcb7191a"
        },
        {
          "url": "https://git.kernel.org/stable/c/2ba22cbc6a1cf4b58195adbee0b80262e53992d3"
        },
        {
          "url": "https://git.kernel.org/stable/c/e78240bc4b94fc42854d65e657bb998100cc8e1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/254e69f284d7270e0abdc023ee53b71401c3ba0c"
        }
      ],
      "title": "fs/ntfs3: Fix null-ptr-deref on inode-\u003ei_op in ntfs_lookup()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53294",
    "datePublished": "2025-09-16T08:11:26.926Z",
    "dateReserved": "2025-09-16T08:09:37.992Z",
    "dateUpdated": "2025-09-16T08:11:26.926Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53294\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T08:15:38.683\",\"lastModified\":\"2025-09-16T12:49:16.060\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfs/ntfs3: Fix null-ptr-deref on inode-\u003ei_op in ntfs_lookup()\\n\\nSyzbot reported a null-ptr-deref bug:\\n\\nntfs3: loop0: Different NTFS\u0027 sector size (1024) and media sector size\\n(512)\\nntfs3: loop0: Mark volume as dirty due to NTFS errors\\ngeneral protection fault, probably for non-canonical address\\n0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN\\nKASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\\nRIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline]\\nRIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2796\\nCall Trace:\\n \u003cTASK\u003e\\n d_splice_alias+0x122/0x3b0 fs/dcache.c:3191\\n lookup_open fs/namei.c:3391 [inline]\\n open_last_lookups fs/namei.c:3481 [inline]\\n path_openat+0x10e6/0x2df0 fs/namei.c:3688\\n do_filp_open+0x264/0x4f0 fs/namei.c:3718\\n do_sys_openat2+0x124/0x4e0 fs/open.c:1310\\n do_sys_open fs/open.c:1326 [inline]\\n __do_sys_open fs/open.c:1334 [inline]\\n __se_sys_open fs/open.c:1330 [inline]\\n __x64_sys_open+0x221/0x270 fs/open.c:1330\\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\\n do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nIf the MFT record of ntfs inode is not a base record, inode-\u003ei_op can be\\nNULL. And a null-ptr-deref may happen:\\n\\nntfs_lookup()\\n    dir_search_u() # inode-\u003ei_op is set to NULL\\n    d_splice_alias()\\n        __d_add()\\n            d_flags_for_inode() # inode-\u003ei_op-\u003eget_link null-ptr-deref\\n\\nFix this by adding a Check on inode-\u003ei_op before calling the\\nd_splice_alias() function.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/254e69f284d7270e0abdc023ee53b71401c3ba0c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2ba22cbc6a1cf4b58195adbee0b80262e53992d3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d69d5e2a81df94534bdb468bcdd26060fcb7191a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e78240bc4b94fc42854d65e657bb998100cc8e1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f8d9e062a695a3665c4635c4f216a75912687598\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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