fkie_cve-2021-47538
Vulnerability from fkie_nvd
Published
2024-05-24 15:15
Modified
2025-09-18 15:55
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()
Need to call rxrpc_put_local() for peer candidate before kfree() as it
holds a ref to rxrpc_local.
[DH: v2: Changed to abstract the peer freeing code out into a function]
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | 5.4 | |
linux | linux_kernel | 5.4 | |
linux | linux_kernel | 5.4 | |
linux | linux_kernel | 5.4 | |
linux | linux_kernel | 5.4 | |
linux | linux_kernel | 5.4 | |
linux | linux_kernel | 5.16 | |
linux | linux_kernel | 5.16 | |
linux | linux_kernel | 5.16 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0B842566-205B-4AAE-9D95-67A8FD4CE9A2", "versionEndExcluding": "4.19.220", "versionStartIncluding": "4.19.82", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FB0DDBC6-6070-4A55-A6BA-776FA7AA9757", "versionEndExcluding": "5.4", "versionStartIncluding": "5.3.9", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "287BF9FA-2F41-4557-9449-EB290A0B40F8", "versionEndExcluding": "5.4.164", "versionStartIncluding": "5.4.1", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AE5B4333-2C46-40C3-8B42-0168AD91DDE1", "versionEndExcluding": "5.10.84", "versionStartIncluding": "5.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A696A60B-2782-4119-83DD-1EFFBC903F02", "versionEndExcluding": "5.15.7", "versionStartIncluding": "5.11", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.4:-:*:*:*:*:*:*", "matchCriteriaId": "4D70AB13-37BE-4BD3-A652-10191F1642E4", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.4:rc4:*:*:*:*:*:*", "matchCriteriaId": "81C1EF68-9FF9-416E-AFED-59088978150A", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.4:rc5:*:*:*:*:*:*", "matchCriteriaId": "F0E28D41-AC78-413B-AA08-FB73CAFFC58C", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.4:rc6:*:*:*:*:*:*", "matchCriteriaId": "EEDE6F28-7530-476B-A838-83E5B2D2A2DD", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.4:rc7:*:*:*:*:*:*", "matchCriteriaId": "7BB18ED4-6619-467C-870F-7671261DBEF2", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.4:rc8:*:*:*:*:*:*", "matchCriteriaId": "D980DAA0-07F8-4C47-B178-0BDDDA234A06", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*", "matchCriteriaId": "357AA433-37E8-4323-BFB2-3038D6E4B414", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*", "matchCriteriaId": "A73429BA-C2D9-4D0C-A75F-06A1CA8B3983", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*", "matchCriteriaId": "F621B5E3-E99D-49E7-90B9-EC3B77C95383", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()\n\nNeed to call rxrpc_put_local() for peer candidate before kfree() as it\nholds a ref to rxrpc_local.\n\n[DH: v2: Changed to abstract the peer freeing code out into a function]" }, { "lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: rxrpc: corrigi\u00f3 la fuga de rxrpc_local en rxrpc_lookup_peer() Es necesario llamar a rxrpc_put_local() para el candidato par antes de kfree(), ya que contiene una referencia a rxrpc_local. [DH: v2: modificado para abstraer el c\u00f3digo de liberaci\u00f3n del par en una funci\u00f3n]" } ], "id": "CVE-2021-47538", "lastModified": "2025-09-18T15:55:34.137", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2024-05-24T15:15:17.750", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-401" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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