{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47474", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-22T06:20:56.199Z", "datePublished": "2024-05-22T08:19:28.759Z", "dateUpdated": "2026-05-11T13:55:23.101Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:55:23.101Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: vmk80xx: fix bulk-buffer overflow\n\nThe driver is using endpoint-sized buffers but must not assume that the\ntx and rx buffers are of equal size or a malicious device could overflow\nthe slab-allocated receive buffer when doing bulk transfers." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/comedi/drivers/vmk80xx.c" ], "versions": [ { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "e0e6a63fd97ad95fe05dfd77268a1952551e11a7", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "7cfb35db607760698d299fd1cf7402dfa8f09973", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "0866dcaa828c21bc2f94dac00e086078f11b5772", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "063f576c43d589a4c153554b681d32b3f8317c7b", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "1ae4715121a57bc6fa29fd992127b01907f2f993", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "b7fd7f3387f070215e6be341e68eb5c087eeecc0", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "7b0e356189327287d0eb98ec081bd6dd97068cd3", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2", "status": "affected", "versionType": "git" }, { "version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb", "lessThan": "78cdfd62bd54af615fba9e3ca1ba35de39d3871d", "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/comedi/drivers/vmk80xx.c" ], "versions": [ { "version": "2.6.31", "status": "affected" }, { "version": "0", "lessThan": "2.6.31", "status": "unaffected", "versionType": "semver" }, { "version": "4.4.292", "lessThanOrEqual": "4.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.290", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.255", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.217", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.159", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.79", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.14.18", "lessThanOrEqual": "5.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.2", "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": "2.6.31", "versionEndExcluding": "4.4.292" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "4.9.290" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "4.14.255" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "4.19.217" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "5.4.159" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "5.10.79" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "5.14.18" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "5.15.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "5.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7" }, { "url": "https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973" }, { "url": "https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772" }, { "url": "https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b" }, { "url": "https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993" }, { "url": "https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0" }, { "url": 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