CVE-2026-43228

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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/hfs/dir.c", "fs/hfs/hfs_fs.h", "fs/hfs/inode.c", "fs/hfs/mdb.c", "fs/hfs/super.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "559f856b109c45844816a1693e259f93d3556c61", "status": "affected", "version": "a06ec283e125e334155fe13005c76c9f484ce759", "versionType": "git"}, {"lessThan": "b6536c1ced315fa645576d3a39c6e07f2a472962", "status": "affected", "version": "a06ec283e125e334155fe13005c76c9f484ce759", "versionType": "git"}, {"lessThan": "b226804532a875c10276168dc55ce752944096bd", "status": "affected", "version": "a06ec283e125e334155fe13005c76c9f484ce759", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/hfs/dir.c", "fs/hfs/hfs_fs.h", "fs/hfs/inode.c", "fs/hfs/mdb.c", "fs/hfs/super.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4B8DEC15-D63A-48FF-9525-4CAB1A20C19D", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs: Replace BUG_ON with error handling for CNID count checks\n\nIn a06ec283e125 next_id, folder_count, and file_count in the super block\ninfo were expanded to 64 bits, and BUG_ONs were added to detect\noverflow. This triggered an error reported by syzbot: if the MDB is\ncorrupted, the BUG_ON is triggered. This patch replaces this mechanism\nwith proper error handling and resolves the syzbot reported bug.\n\nSinged-off-by: Jori Koolstra <jkoolstra@xs4all.nl>"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nhfs: Reemplazar BUG_ON con manejo de errores para las comprobaciones de recuento de CNID\n\nEn a06ec283e125, next_id, folder_count y file_count en la informaci\u00f3n del superbloque se expandieron a 64 bits, y se a\u00f1adieron BUG_ON para detectar desbordamiento. Esto desencaden\u00f3 un error reportado por syzbot: si el MDB est\u00e1 corrupto, el BUG_ON se desencadena. Este parche reemplaza este mecanismo con un manejo de errores adecuado y resuelve el error reportado por syzbot.\n\nFirmado por: Jori Koolstra <jkoolstra@xs4all.nl>"}], "id": "CVE-2026-43228", "lastModified": "2026-11-11T20:10:00.273", "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": "2026-05-06T12:16:42.710", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/559f856b109c45844816a1693e259f93d3556c61"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b226804532a875c10276168dc55ce752944096bd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b6536c1ced315fa645576d3a39c6e07f2a472962"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-617"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: hfs: Replace BUG_ON with error handling for CNID count checks", "id": "2467121", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467121"}, "csaw": false, "cwe": "CWE-617", "details": ["A flaw was found in the Linux kernel HFS component. A local attacker could provide a specially crafted and corrupted Master Directory Block (MDB) to trigger a kernel panic. This vulnerability, caused by improper error handling of CNID count checks, leads to a system Denial of Service (DoS)."], "name": "CVE-2026-43228", "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": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43228\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43228\nhttps://lore.kernel.org/linux-cve-announce/2026050655-CVE-2026-43228-4b65@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,b6536c1ced315fa645576d3a39c6e07f2a472962)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,b226804532a875c10276168dc55ce752944096bd)"}}], "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": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.6,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-05-06T15:30:06.078630+00:00", "updated": "2026-05-08T23:30:15.348115+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}