| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: dt9812: fix DMA buffers on stack\n\nUSB transfer buffers are typically mapped for DMA and must not be\nallocated on the stack or transfers will fail.\n\nAllocate proper transfer buffers in the various command helpers and\nreturn an error on short transfers instead of acting on random stack\ndata.\n\nNote that this also fixes a stack info leak on systems where DMA is not\nused as 32 bytes are always sent to the device regardless of how short\nthe command is." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/comedi/drivers/dt9812.c" |
| ], |
| "versions": [ |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "a6af69768d5cb4b2528946d53be5fa19ade37723", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "365a346cda82f51d835c49136a00a9df8a78c7f2", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "8a52bc480992c7c9da3ebfea456af731f50a4b97", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "39ea61037ae78f14fa121228dd962ea3280eacf3", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "3efb7af8ac437085b6c776e5b54830b149d86efe", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "786f5b03450454557ff858a8bead5d7c0cbf78d6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "3ac273d154d634e2034508a14db82a95d7ad12ed", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "20cebb8b620dc987e55ddc46801de986e081757e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "63274cd7d38a3322d90b66a5bc976de1fb899051", |
| "lessThan": "536de747bc48262225889a533db6650731ab25d3", |
| "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/dt9812.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.29", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.29", |
| "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": "2.6.29", |
| "versionEndExcluding": "4.4.292" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "4.9.290" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "4.14.255" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "4.19.217" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "5.4.159" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "5.10.79" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "5.14.18" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "5.15.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.29", |
| "versionEndExcluding": "5.16" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/a6af69768d5cb4b2528946d53be5fa19ade37723" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/365a346cda82f51d835c49136a00a9df8a78c7f2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8a52bc480992c7c9da3ebfea456af731f50a4b97" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/39ea61037ae78f14fa121228dd962ea3280eacf3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3efb7af8ac437085b6c776e5b54830b149d86efe" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/786f5b03450454557ff858a8bead5d7c0cbf78d6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3ac273d154d634e2034508a14db82a95d7ad12ed" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/20cebb8b620dc987e55ddc46801de986e081757e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/536de747bc48262225889a533db6650731ab25d3" |
| } |
| ], |
| "title": "comedi: dt9812: fix DMA buffers on stack", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47477", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
