CVE-2022-48747

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So it can\nreturn the uninitialized data.\n\nThis happened when both of truncated/corrupted FS and userspace (via\nbdev) are trying to read the last of bdev."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/bio.c"], "versions": [{"version": "943cd69efac437d82a7aea0659fccbcc071730de", "lessThan": "6cbf4c731d7812518cd857c2cfc3da9fd120f6ae", "status": "affected", "versionType": "git"}, {"version": "85a8ce62c2eabe28b9d76ca4eecf37922402df93", "lessThan": "b63e120189fd92aff00096d11e2fc5253f60248b", "status": "affected", "versionType": "git"}, {"version": "85a8ce62c2eabe28b9d76ca4eecf37922402df93", "lessThan": "4633a79ff8bc82770486a063a08b55e5162521d8", "status": "affected", "versionType": "git"}, {"version": "85a8ce62c2eabe28b9d76ca4eecf37922402df93", "lessThan": "941d5180c430ce5b0f7a3622ef9b76077bfa3d82", "status": "affected", "versionType": "git"}, 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"https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae"}, {"url": "https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b"}, {"url": "https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8"}, {"url": "https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82"}, {"url": "https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3"}], "title": "block: Fix wrong offset in bio_truncate()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-908", "lang": "en", "description": "CWE-908 Use of Uninitialized Resource"}]}], "affected": [{"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "1da177e4c3f4", "status": "affected", "lessThan": "6cbf4c731d78", "versionType": "custom"}]}, {"vendor": "linux", "product": "linux_kernel", "cpes": 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"versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["block/bio.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae"}, {"url": "https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b"}, {"url": "https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8"}, {"url": "https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82"}, {"url": "https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix wrong offset in bio_truncate()\n\nbio_truncate() clears the buffer outside of last block of bdev, however\ncurrent bio_truncate() is using the wrong offset of 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So it can\nreturn the uninitialized data.\n\nThis happened when both of truncated/corrupted FS and userspace (via\nbdev) are trying to read the last of bdev."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.176", "versionStartIncluding": "5.4.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.96", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.19", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16.5", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17", "versionStartIncluding": "5.5"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:20:36.508Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48747", "state": "PUBLISHED", "dateUpdated": "2026-05-23T15:20:36.508Z", "dateReserved": "2024-06-20T11:09:39.055Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-06-20T11:13:29.951Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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"unaffected", "version": "5.15.19", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThanOrEqual": "5.17", "status": "unaffected", "version": "5.16.5", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "unaffected", "version": "5.17"}]}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "71E85CD6-FA04-45D7-9C09-3CEB02FC5C4B", "versionEndExcluding": "5.4.176", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "27A6621A-A196-4220-957F-334B9124E477", "versionEndExcluding": "5.10.96", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DF69DD7C-FD57-4914-ABB0-FAEF87B0289D", "versionEndExcluding": "5.15.19", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1AD9E77E-B27E-450C-8FD8-B64EC5FB002D", "versionEndExcluding": "5.16.5", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix wrong offset in bio_truncate()\n\nbio_truncate() clears the buffer outside of last block of bdev, however\ncurrent bio_truncate() is using the wrong offset of page. So it can\nreturn the uninitialized data.\n\nThis happened when both of truncated/corrupted FS and userspace (via\nbdev) are trying to read the last of bdev."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bloque: corrige el desplazamiento incorrecto en bio_truncate() bio_truncate() borra el b\u00fafer fuera del \u00faltimo bloque de bdev, sin embargo, el bio_truncate() actual est\u00e1 usando el desplazamiento de p\u00e1gina incorrecto. Entonces puede devolver los datos no inicializados. Esto sucedi\u00f3 cuando tanto el FS truncado/corrupto como el espacio de usuario (a trav\u00e9s de bdev) intentaban leer lo \u00faltimo de bdev."}], "id": "CVE-2022-48747", "lastModified": "2026-06-17T05:16:05.003", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48747", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-06-26T14:56:40.641058Z", "version": "2.0.3"}}]}, "published": "2024-06-20T12:15:12.960", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:5102", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.16.1.rt7.357.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:5101", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.16.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}], "bugzilla": {"description": "kernel: block: Fix wrong offset in bio_truncate()", "id": "2293312", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293312"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nblock: Fix wrong offset in bio_truncate()\nbio_truncate() clears the buffer outside of last block of bdev, however\ncurrent bio_truncate() is using the wrong offset of page. So it can\nreturn the uninitialized data.\nThis happened when both of truncated/corrupted FS and userspace (via\nbdev) are trying to read the last of bdev."], "name": "CVE-2022-48747", "package_state": [{"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: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": "2024-06-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48747\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48747\nhttps://lore.kernel.org/linux-cve-announce/2024062004-CVE-2022-48747-c63f@gregkh/T"], "threat_severity": "Low"}

{}