CVE-2026-53029

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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ntfs3/inode.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "485f750cac3d8bdf5552a0e3d79ce5e3a03ece49", "status": "affected", "version": "10d7c95af043b45a85dc738c3271bf760ff3577e", "versionType": "git"}, {"lessThan": "e98266e823a1fa06fe6499df61aeaac2fd6f7a49", "status": "affected", "version": "10d7c95af043b45a85dc738c3271bf760ff3577e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ntfs3/inode.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.0"}, {"lessThan": "7.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2108AD68-1941-4FEE-96A2-DA53D847EC08", "versionEndExcluding": "7.0.10", "versionStartIncluding": "7.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: prevent uninitialized lcn caused by zero len\n\nsyzbot reported a uninit-value in ntfs_iomap_begin [1].\n\nSince runs was not touched yet, run_lookup_entry() immediately fails\nand returns false, which makes the value of \"*len\" 0.\nSimultaneously, the new value and err value are also 0, causing the\nlogic in attr_data_get_block_locked() to jump directly to ok, ultimately\nresulting in *lcn being triggered before it is set [1].\n\nIn ntfs_iomap_begin(), the check for a 0 value in clen is moved forward\nto before updating lcn to avoid this [1].\n\n[1]\nBUG: KMSAN: uninit-value in ntfs_iomap_begin+0x8c0/0x1460 fs/ntfs3/inode.c:825\n ntfs_iomap_begin+0x8c0/0x1460 fs/ntfs3/inode.c:825\n iomap_iter+0x9b7/0x1540 fs/iomap/iter.c:110\n\nLocal variable lcn created at:\n ntfs_iomap_begin+0x15d/0x1460 fs/ntfs3/inode.c:786"}], "id": "CVE-2026-53029", "lastModified": "2026-07-15T14:37:43.127", "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"}]}, "published": "2026-06-24T17:17:14.297", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/485f750cac3d8bdf5552a0e3d79ce5e3a03ece49"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e98266e823a1fa06fe6499df61aeaac2fd6f7a49"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: fs/ntfs3: prevent uninitialized lcn caused by zero len", "id": "2492297", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492297"}, "csaw": false, "cwe": "CWE-824", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfs/ntfs3: prevent uninitialized lcn caused by zero len\nsyzbot reported a uninit-value in ntfs_iomap_begin [1].\nSince runs was not touched yet, run_lookup_entry() immediately fails\nand returns false, which makes the value of \"*len\" 0.\nSimultaneously, the new value and err value are also 0, causing the\nlogic in attr_data_get_block_locked() to jump directly to ok, ultimately\nresulting in *lcn being triggered before it is set [1].\nIn ntfs_iomap_begin(), the check for a 0 value in clen is moved forward\nto before updating lcn to avoid this [1].\n[1]\nBUG: KMSAN: uninit-value in ntfs_iomap_begin+0x8c0/0x1460 fs/ntfs3/inode.c:825\nntfs_iomap_begin+0x8c0/0x1460 fs/ntfs3/inode.c:825\niomap_iter+0x9b7/0x1540 fs/iomap/iter.c:110\nLocal variable lcn created at:\nntfs_iomap_begin+0x15d/0x1460 fs/ntfs3/inode.c:786", "A flaw was found in the Linux kernel's `ntfs3` filesystem driver. This vulnerability occurs due to an uninitialized local variable (`lcn`) when handling zero-length data during I/O operations. An attacker could potentially exploit this flaw to cause a denial of service or information disclosure due to unpredictable behavior resulting from the use of uninitialized memory."], "name": "CVE-2026-53029", "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": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53029\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53029\nhttps://lore.kernel.org/linux-cve-announce/2026062454-CVE-2026-53029-4cfc@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10d7c95af043b45a85dc738c3271bf760ff3577e,485f750cac3d8bdf5552a0e3d79ce5e3a03ece49)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[10d7c95af043b45a85dc738c3271bf760ff3577e,e98266e823a1fa06fe6499df61aeaac2fd6f7a49)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T19:45:05.748499+00:00", "updated": "2026-08-12T06:30:17.205181+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-758", "CWE-824", "CWE-908"]}