gsd-2021-46950
Vulnerability from gsd
Modified
2024-02-26 06:03
Details
In the Linux kernel, the following vulnerability has been resolved:
md/raid1: properly indicate failure when ending a failed write request
This patch addresses a data corruption bug in raid1 arrays using bitmaps.
Without this fix, the bitmap bits for the failed I/O end up being cleared.
Since we are in the failure leg of raid1_end_write_request, the request
either needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-46950" ], "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: properly indicate failure when ending a failed write request\n\nThis patch addresses a data corruption bug in raid1 arrays using bitmaps.\nWithout this fix, the bitmap bits for the failed I/O end up being cleared.\n\nSince we are in the failure leg of raid1_end_write_request, the request\neither needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).", "id": "GSD-2021-46950", "modified": "2024-02-26T06:03:52.359932Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@kernel.org", "ID": "CVE-2021-46950", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "900c531899f5", "version_value": "12216d0919b6" }, { "version_affected": "\u003c", "version_name": "1cd972e0a107", "version_value": "a6e17cab00fc" }, { "version_affected": "\u003c", "version_name": "eeba6809d8d5", "version_value": "6920cef604fa" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "status": "affected", "version": "5.4" }, { "lessThan": "5.4", "status": "unaffected", "version": "0", "versionType": "custom" }, { "lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.233", "versionType": "custom" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.191", "versionType": "custom" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.118", "versionType": "custom" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.36", "versionType": "custom" }, { "lessThanOrEqual": "5.11.*", "status": "unaffected", "version": "5.11.20", "versionType": "custom" }, { "lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.3", "versionType": "custom" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix" } ] } } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: properly indicate failure when ending a failed write request\n\nThis patch addresses a data corruption bug in raid1 arrays using bitmaps.\nWithout this fix, the bitmap bits for the failed I/O end up being cleared.\n\nSince we are in the failure leg of raid1_end_write_request, the request\neither needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded)." } ] }, "generator": { "engine": "bippy-851b3ed3d212" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5" }, { "name": "https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f" }, { "name": "https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40" }, { "name": "https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382" }, { "name": "https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515" }, { "name": "https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd" }, { "name": "https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd" } ] } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "86B2A77C-6C00-4E2C-9294-8E428795F340", "versionEndExcluding": "4.14.233", "versionStartIncluding": "4.14.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B7281E1E-A00B-49C0-A849-9CE1CE780227", "versionEndExcluding": "4.19.191", "versionStartIncluding": "4.15.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5670AEA3-082C-42D6-A067-CD9ECED4B84B", "versionEndExcluding": "5.4.118", "versionStartIncluding": "4.20.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C7148769-B830-4B8F-986F-E0C85A19FC7F", "versionEndExcluding": "5.10.36", "versionStartIncluding": "5.5.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EFB425F0-C28C-4B44-8B4C-AD512AA832DE", "versionEndExcluding": "5.11.20", "versionStartIncluding": "5.11.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C3814FA3-8141-4313-A852-8C4212BE12AD", "versionEndExcluding": "5.12.3", "versionStartIncluding": "5.12.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: properly indicate failure when ending a failed write request\n\nThis patch addresses a data corruption bug in raid1 arrays using bitmaps.\nWithout this fix, the bitmap bits for the failed I/O end up being cleared.\n\nSince we are in the failure leg of raid1_end_write_request, the request\neither needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded)." }, { "lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: md/raid1: indica correctamente el error al finalizar una solicitud de escritura fallida. Este parche soluciona un error de corrupci\u00f3n de datos en matrices raid1 que utilizan mapas de bits. Sin esta soluci\u00f3n, los bits del mapa de bits de la E/S fallida terminan borr\u00e1ndose. Dado que estamos en el tramo fallido de raid1_end_write_request, es necesario volver a intentar la solicitud (R1BIO_WriteError) o fallar (R1BIO_Degraded)." } ], "id": "CVE-2021-46950", "lastModified": "2024-04-10T20:13:16.993", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2024-02-27T19:04:06.420", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" } ] } } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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