CVE-2021-47021 (GCVE-0-2021-47021)
Vulnerability from cvelistv5 – Published: 2024-02-28 08:13 – Updated: 2025-05-04 07:02
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mt76: mt7915: fix memleak when mt7915_unregister_device()
mt7915_tx_token_put() should get call before mt76_free_pending_txwi().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
4e9e896f81932e337a93ad61cd3d9647571c4637 , < 81483309ce861a9fa7835322787f68a443fea364
(git)
Affected: f285dfb98562e8380101095d168910df1d07d8be , < d754c80ae82a662e692a82faad71b8c218cb7f52 (git) Affected: f285dfb98562e8380101095d168910df1d07d8be , < e9d32af478cfc3744a45245c0b126738af4b3ac4 (git) |
||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-47021",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-02-28T20:52:21.068876Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-04T17:14:44.715Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:24:39.791Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7915/init.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "81483309ce861a9fa7835322787f68a443fea364",
"status": "affected",
"version": "4e9e896f81932e337a93ad61cd3d9647571c4637",
"versionType": "git"
},
{
"lessThan": "d754c80ae82a662e692a82faad71b8c218cb7f52",
"status": "affected",
"version": "f285dfb98562e8380101095d168910df1d07d8be",
"versionType": "git"
},
{
"lessThan": "e9d32af478cfc3744a45245c0b126738af4b3ac4",
"status": "affected",
"version": "f285dfb98562e8380101095d168910df1d07d8be",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7915/init.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"lessThan": "5.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.11.*",
"status": "unaffected",
"version": "5.11.21",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"version": "5.12.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.13",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.11.21",
"versionStartIncluding": "5.11.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.12.4",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.13",
"versionStartIncluding": "5.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: mt7915: fix memleak when mt7915_unregister_device()\n\nmt7915_tx_token_put() should get call before mt76_free_pending_txwi()."
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T07:02:28.140Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364"
},
{
"url": "https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52"
},
{
"url": "https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4"
}
],
"title": "mt76: mt7915: fix memleak when mt7915_unregister_device()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2021-47021",
"datePublished": "2024-02-28T08:13:34.591Z",
"dateReserved": "2024-02-27T18:42:55.954Z",
"dateUpdated": "2025-05-04T07:02:28.140Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11.4\", \"versionEndExcluding\": \"5.11.21\", \"matchCriteriaId\": \"C39F6A5C-514F-4A49-B46B-CF669936DBB2\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.12\", \"versionEndExcluding\": \"5.12.4\", \"matchCriteriaId\": \"D8C7052F-1B7B-4327-9C2B-84EBF3243838\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7915: fix memleak when mt7915_unregister_device()\\n\\nmt7915_tx_token_put() should get call before mt76_free_pending_txwi().\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: mt76: mt7915: corrige memleak cuando mt7915_unregister_device() mt7915_tx_token_put() deber\\u00eda recibir una llamada antes que mt76_free_pending_txwi().\"}]",
"id": "CVE-2021-47021",
"lastModified": "2024-12-09T17:59:41.990",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
"published": "2024-02-28T09:15:39.100",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}]",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-401\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-47021\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-28T09:15:39.100\",\"lastModified\":\"2024-12-09T17:59:41.990\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7915: fix memleak when mt7915_unregister_device()\\n\\nmt7915_tx_token_put() should get call before mt76_free_pending_txwi().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mt76: mt7915: corrige memleak cuando mt7915_unregister_device() mt7915_tx_token_put() deber\u00eda recibir una llamada antes que mt76_free_pending_txwi().\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.4\",\"versionEndExcluding\":\"5.11.21\",\"matchCriteriaId\":\"C39F6A5C-514F-4A49-B46B-CF669936DBB2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.12\",\"versionEndExcluding\":\"5.12.4\",\"matchCriteriaId\":\"D8C7052F-1B7B-4327-9C2B-84EBF3243838\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:24:39.791Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47021\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-02-28T20:52:21.068876Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:13.864Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"mt76: mt7915: fix memleak when mt7915_unregister_device()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4e9e896f81932e337a93ad61cd3d9647571c4637\", \"lessThan\": \"81483309ce861a9fa7835322787f68a443fea364\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f285dfb98562e8380101095d168910df1d07d8be\", \"lessThan\": \"d754c80ae82a662e692a82faad71b8c218cb7f52\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f285dfb98562e8380101095d168910df1d07d8be\", \"lessThan\": \"e9d32af478cfc3744a45245c0b126738af4b3ac4\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7915/init.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.11.21\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.11.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7915/init.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/81483309ce861a9fa7835322787f68a443fea364\"}, {\"url\": \"https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52\"}, {\"url\": \"https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7915: fix memleak when mt7915_unregister_device()\\n\\nmt7915_tx_token_put() should get call before mt76_free_pending_txwi().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.11.21\", \"versionStartIncluding\": \"5.11.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.4\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"5.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:02:28.140Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-47021\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:02:28.140Z\", \"dateReserved\": \"2024-02-27T18:42:55.954Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-28T08:13:34.591Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…