| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nudmabuf: validate ubuf->pagecount\n\nSyzbot has reported GPF in sg_alloc_append_table_from_pages(). The\nproblem was in ubuf->pages == ZERO_PTR.\n\nubuf->pagecount is calculated from arguments passed from user-space. If\nuser creates udmabuf with list.size == 0 then ubuf->pagecount will be\nalso equal to zero; it causes kmalloc_array() to return ZERO_PTR.\n\nFix it by validating ubuf->pagecount before passing it to\nkmalloc_array()." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/dma-buf/udmabuf.c" |
| ], |
| "versions": [ |
| { |
| "version": "fbb0de795078190a9834b3409e4b009cfb18a6d4", |
| "lessThan": "5d50f851dd307c07ca5591297093f19967c834a9", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fbb0de795078190a9834b3409e4b009cfb18a6d4", |
| "lessThan": "b267a8118c2b171bf7d67b90ed64154eeab9fae0", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fbb0de795078190a9834b3409e4b009cfb18a6d4", |
| "lessThan": "811b667cefbea9cb7511a874b169d6a92907137e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fbb0de795078190a9834b3409e4b009cfb18a6d4", |
| "lessThan": "a3728d32fc61eb0fe283cb8ff60b2c8f751e2202", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fbb0de795078190a9834b3409e4b009cfb18a6d4", |
| "lessThan": "9e9b4a269f84d3230f2af84ff42322db676440d9", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fbb0de795078190a9834b3409e4b009cfb18a6d4", |
| "lessThan": "2b6dd600dd72573c23ea180b5b0b2f1813405882", |
| "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/dma-buf/udmabuf.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.20", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.20", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.189", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.110", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.33", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.16.19", |
| "lessThanOrEqual": "5.16.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.17.2", |
| "lessThanOrEqual": "5.17.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.18", |
| "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": "4.20", |
| "versionEndExcluding": "5.4.189" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "5.10.110" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "5.15.33" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "5.16.19" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "5.17.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "5.18" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/5d50f851dd307c07ca5591297093f19967c834a9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b267a8118c2b171bf7d67b90ed64154eeab9fae0" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/811b667cefbea9cb7511a874b169d6a92907137e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a3728d32fc61eb0fe283cb8ff60b2c8f751e2202" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/9e9b4a269f84d3230f2af84ff42322db676440d9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/2b6dd600dd72573c23ea180b5b0b2f1813405882" |
| } |
| ], |
| "title": "udmabuf: validate ubuf->pagecount", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47649", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
