| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hso: fix null-ptr-deref during tty device unregistration\n\nMultiple ttys try to claim the same the minor number causing a double\nunregistration of the same device. The first unregistration succeeds\nbut the next one results in a null-ptr-deref.\n\nThe get_free_serial_index() function returns an available minor number\nbut doesn't assign it immediately. The assignment is done by the caller\nlater. But before this assignment, calls to get_free_serial_index()\nwould return the same minor number.\n\nFix this by modifying get_free_serial_index to assign the minor number\nimmediately after one is found to be and rename it to obtain_minor()\nto better reflect what it does. Similary, rename set_serial_by_index()\nto release_minor() and modify it to free up the minor number of the\ngiven hso_serial. Every obtain_minor() should have corresponding\nrelease_minor() call." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/net/usb/hso.c" |
| ], |
| "versions": [ |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "a462067d7c8e6953a733bf5ade8db947b1bb5449", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "145c89c441d27696961752bf51b323f347601bee", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "caf5ac93b3b5d5fac032fc11fbea680e115421b4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "92028d7a31e55d53e41cff679156b9432cffcb36", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "4a2933c88399c0ebc738db39bbce3ae89786d723", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "388d05f70f1ee0cac4a2068fd295072f1a44152a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5", |
| "lessThan": "8a12f8836145ffe37e9c8733dce18c22fb668b66", |
| "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/net/usb/hso.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.27", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.27", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.4.268", |
| "lessThanOrEqual": "4.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.9.268", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.232", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.187", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.112", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.30", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.11.14", |
| "lessThanOrEqual": "5.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.12", |
| "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": "2.6.27", |
| "versionEndExcluding": "4.4.268" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.27", |
| "versionEndExcluding": "4.9.268" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.27", |
| "versionEndExcluding": "4.14.232" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.27", |
| "versionEndExcluding": "4.19.187" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.27", |
| "versionEndExcluding": "5.4.112" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.27", |
| "versionEndExcluding": "5.10.30" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.27", |
| "versionEndExcluding": "5.11.14" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.27", |
| "versionEndExcluding": "5.12" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/a462067d7c8e6953a733bf5ade8db947b1bb5449" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/145c89c441d27696961752bf51b323f347601bee" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/caf5ac93b3b5d5fac032fc11fbea680e115421b4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/92028d7a31e55d53e41cff679156b9432cffcb36" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4a2933c88399c0ebc738db39bbce3ae89786d723" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/388d05f70f1ee0cac4a2068fd295072f1a44152a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8a12f8836145ffe37e9c8733dce18c22fb668b66" |
| } |
| ], |
| "title": "net: hso: fix null-ptr-deref during tty device unregistration", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-46904", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
