340 lines
16 KiB
JSON
340 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2021-46904",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-02-25T13:45:52.716Z",
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"datePublished": "2024-02-25T14:03:40.319Z",
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"dateUpdated": "2026-05-11T13:44:09.016Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T13:44:09.016Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/usb/hso.c"
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],
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"versions": [
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "a462067d7c8e6953a733bf5ade8db947b1bb5449",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "145c89c441d27696961752bf51b323f347601bee",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "caf5ac93b3b5d5fac032fc11fbea680e115421b4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "92028d7a31e55d53e41cff679156b9432cffcb36",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "4a2933c88399c0ebc738db39bbce3ae89786d723",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "388d05f70f1ee0cac4a2068fd295072f1a44152a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
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"lessThan": "8a12f8836145ffe37e9c8733dce18c22fb668b66",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/usb/hso.c"
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],
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"versions": [
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{
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"version": "2.6.27",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.27",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.4.268",
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"lessThanOrEqual": "4.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.9.268",
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"lessThanOrEqual": "4.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.232",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.187",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.112",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.30",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.11.14",
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"lessThanOrEqual": "5.11.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.12",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "4.4.268"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "4.9.268"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "4.14.232"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "4.19.187"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "5.4.112"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "5.10.30"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "5.11.14"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "5.12"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/a462067d7c8e6953a733bf5ade8db947b1bb5449"
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},
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{
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"url": "https://git.kernel.org/stable/c/145c89c441d27696961752bf51b323f347601bee"
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},
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{
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"url": "https://git.kernel.org/stable/c/caf5ac93b3b5d5fac032fc11fbea680e115421b4"
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},
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{
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"url": "https://git.kernel.org/stable/c/92028d7a31e55d53e41cff679156b9432cffcb36"
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},
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{
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"url": "https://git.kernel.org/stable/c/4a2933c88399c0ebc738db39bbce3ae89786d723"
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},
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{
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"url": "https://git.kernel.org/stable/c/dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac"
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},
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{
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"url": "https://git.kernel.org/stable/c/388d05f70f1ee0cac4a2068fd295072f1a44152a"
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},
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{
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"url": "https://git.kernel.org/stable/c/8a12f8836145ffe37e9c8733dce18c22fb668b66"
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}
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],
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"title": "net: hso: fix null-ptr-deref during tty device unregistration",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2024-07-25T17:47:17.588165Z",
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"id": "CVE-2021-46904",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-07-25T17:47:30.417Z"
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}
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},
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-04T05:17:42.846Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/a462067d7c8e6953a733bf5ade8db947b1bb5449",
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"tags": [
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"x_transferred"
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]
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},
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{
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"url": "https://git.kernel.org/stable/c/145c89c441d27696961752bf51b323f347601bee",
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"tags": [
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]
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},
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"url": "https://git.kernel.org/stable/c/caf5ac93b3b5d5fac032fc11fbea680e115421b4",
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"tags": [
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{
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"url": "https://git.kernel.org/stable/c/388d05f70f1ee0cac4a2068fd295072f1a44152a",
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"tags": [
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{
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"url": "https://git.kernel.org/stable/c/8a12f8836145ffe37e9c8733dce18c22fb668b66",
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"tags": [
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]
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}
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]
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}
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]
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}
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} |