{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-46934", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-25T13:45:52.720Z", "datePublished": "2024-02-27T09:44:01.411Z", "dateUpdated": "2026-05-11T13:44:43.916Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:44:43.916Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: validate user data in compat ioctl\n\nWrong user data may cause warning in i2c_transfer(), ex: zero msgs.\nUserspace should not be able to trigger warnings, so this patch adds\nvalidation checks for user data in compact ioctl to prevent reported\nwarnings" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/i2c/i2c-dev.c" ], "versions": [ { "version": "7d5cb45655f2e9e37ef75d18f50c0072ef14a38b", "lessThan": "407c8708fb1bf2d4afc5337ef50635cf540c364b", "status": "affected", "versionType": "git" }, { "version": "7d5cb45655f2e9e37ef75d18f50c0072ef14a38b", "lessThan": "9e4a3f47eff476097e0c7faac04d1831fc70237d", "status": "affected", "versionType": "git" }, { "version": "7d5cb45655f2e9e37ef75d18f50c0072ef14a38b", "lessThan": "8d31cbab4c295d7010ebb729e9d02d0e9cece18f", "status": "affected", "versionType": "git" }, { "version": "7d5cb45655f2e9e37ef75d18f50c0072ef14a38b", "lessThan": "f68599581067e8a5a8901ba9eb270b4519690e26", "status": "affected", "versionType": "git" }, { "version": "7d5cb45655f2e9e37ef75d18f50c0072ef14a38b", "lessThan": "bb436283e25aaf1533ce061605d23a9564447bdf", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/i2c/i2c-dev.c" ], "versions": [ { "version": "4.15", "status": "affected" }, { "version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.224", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.170", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.90", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.13", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16", "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": "4.15", "versionEndExcluding": "4.19.224" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.4.170" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.10.90" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.15.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/407c8708fb1bf2d4afc5337ef50635cf540c364b" }, { "url": "https://git.kernel.org/stable/c/9e4a3f47eff476097e0c7faac04d1831fc70237d" }, { "url": "https://git.kernel.org/stable/c/8d31cbab4c295d7010ebb729e9d02d0e9cece18f" }, { "url": "https://git.kernel.org/stable/c/f68599581067e8a5a8901ba9eb270b4519690e26" }, { "url": "https://git.kernel.org/stable/c/bb436283e25aaf1533ce061605d23a9564447bdf" } ], "title": "i2c: validate user data in compat ioctl", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-46934", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-03-05T16:18:35.081460Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:21:06.191Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.874Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/407c8708fb1bf2d4afc5337ef50635cf540c364b", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/9e4a3f47eff476097e0c7faac04d1831fc70237d", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/8d31cbab4c295d7010ebb729e9d02d0e9cece18f", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/f68599581067e8a5a8901ba9eb270b4519690e26", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/bb436283e25aaf1533ce061605d23a9564447bdf", "tags": [ "x_transferred" ] } ] } ] } }