CVE-2023-53294

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And a null-ptr-deref may happen:\n\nntfs_lookup()\n dir_search_u() # inode->i_op is set to NULL\n d_splice_alias()\n __d_add()\n d_flags_for_inode() # inode->i_op->get_link null-ptr-deref\n\nFix this by adding a Check on inode->i_op before calling the\nd_splice_alias() function."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/namei.c"], "versions": [{"version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "lessThan": "f8d9e062a695a3665c4635c4f216a75912687598", "status": "affected", "versionType": "git"}, {"version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "lessThan": "d69d5e2a81df94534bdb468bcdd26060fcb7191a", "status": "affected", "versionType": "git"}, {"version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "lessThan": "2ba22cbc6a1cf4b58195adbee0b80262e53992d3", "status": "affected", "versionType": "git"}, {"version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "lessThan": "e78240bc4b94fc42854d65e657bb998100cc8e1b", "status": "affected", "versionType": "git"}, {"version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "lessThan": "254e69f284d7270e0abdc023ee53b71401c3ba0c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/namei.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.112", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.29", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.16", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3.3", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.15.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.29"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.2.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.3.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.4"}]}]}], "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->i_op in ntfs_lookup()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-53294", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-14T18:11:41.343239Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:12:56.379Z"}}]}}

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And a null-ptr-deref may happen:\n\nntfs_lookup()\n dir_search_u() # inode->i_op is set to NULL\n d_splice_alias()\n __d_add()\n d_flags_for_inode() # inode->i_op->get_link null-ptr-deref\n\nFix this by adding a Check on inode->i_op before calling the\nd_splice_alias() function."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.112", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.29", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.2.16", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.3.3", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.4", "versionStartIncluding": "5.15"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-16T08:11:26.926Z"}}}, "cveMetadata": {"cveId": "CVE-2023-53294", "state": "PUBLISHED", "dateUpdated": "2026-01-14T18:12:56.379Z", "dateReserved": "2025-09-16T08:09:37.992Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-09-16T08:11:26.926Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ntfs3/namei.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f8d9e062a695a3665c4635c4f216a75912687598", "status": "affected", "version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "versionType": "git"}, {"lessThan": "d69d5e2a81df94534bdb468bcdd26060fcb7191a", "status": "affected", "version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "versionType": "git"}, {"lessThan": "2ba22cbc6a1cf4b58195adbee0b80262e53992d3", "status": "affected", "version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "versionType": "git"}, {"lessThan": "e78240bc4b94fc42854d65e657bb998100cc8e1b", "status": "affected", "version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "versionType": "git"}, {"lessThan": "254e69f284d7270e0abdc023ee53b71401c3ba0c", "status": "affected", "version": "4342306f0f0d5ff4315a204d315c1b51b914fca5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ntfs3/namei.c"], "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"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.29", "versionType": "semver"}, {"lessThanOrEqual": "6.2.*", "status": "unaffected", "version": "6.2.16", "versionType": "semver"}, {"lessThanOrEqual": "6.3.*", "status": "unaffected", "version": "6.3.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.4", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "752E77B1-A511-429D-A6FD-B3735478239B", "versionEndExcluding": "5.15.112", "versionStartIncluding": "5.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D48F00B5-5471-4D1B-BE47-1DAB8122F35A", "versionEndExcluding": "6.1.29", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F92F7C8E-A977-4255-B1B6-D1908D8B408F", "versionEndExcluding": "6.2.16", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D96A7FC-D812-4458-AEA8-3FF4023E6B75", "versionEndExcluding": "6.3.3", "versionStartIncluding": "6.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix null-ptr-deref on inode->i_op in ntfs_lookup()\n\nSyzbot reported a null-ptr-deref bug:\n\nntfs3: loop0: Different NTFS' 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 <TASK>\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->i_op can be\nNULL. And a null-ptr-deref may happen:\n\nntfs_lookup()\n dir_search_u() # inode->i_op is set to NULL\n d_splice_alias()\n __d_add()\n d_flags_for_inode() # inode->i_op->get_link null-ptr-deref\n\nFix this by adding a Check on inode->i_op before calling the\nd_splice_alias() function."}], "id": "CVE-2023-53294", "lastModified": "2026-06-17T06:44:45.970", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-53294", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-14T18:11:41.343239Z", "version": "2.0.3"}}]}, "published": "2025-09-16T08:15:38.683", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/254e69f284d7270e0abdc023ee53b71401c3ba0c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2ba22cbc6a1cf4b58195adbee0b80262e53992d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d69d5e2a81df94534bdb468bcdd26060fcb7191a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e78240bc4b94fc42854d65e657bb998100cc8e1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f8d9e062a695a3665c4635c4f216a75912687598"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: fs/ntfs3: Fix null-ptr-deref on inode->i_op in ntfs_lookup()", "id": "2395656", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395656"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-53294", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53294\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53294\nhttps://lore.kernel.org/linux-cve-announce/2025091627-CVE-2023-53294-e5cc@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-17T10:05:00.570148+00:00", "updated": "2025-09-17T10:05:00.570199+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}