CVE-2021-47258 - Vulnerability Details

Vendors	Products
Linux	Linux Kernel

Link	Providers
https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a
https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7
https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006
https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8
https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11
https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a
https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66
https://lore.kernel.org/linux-cve-announce/2024052146-CVE-2021-47258-f276@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47258
https://www.cve.org/CVERecord?id=CVE-2021-47258

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
Weaknesses		CWE-401
CPEs		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:5.13:rc1:::::: cpe:2.3:o:linux:linux_kernel:5.13:rc2:::::: cpe:2.3:o:linux:linux_kernel:5.13:rc3:::::: cpe:2.3:o:linux:linux_kernel:5.13:rc4:::::: cpe:2.3:o:linux:linux_kernel:5.13:rc5::::::
Vendors & Products		Linux Linux linux Kernel
Metrics	cvssV3_1 `{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L'}`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}`

Show plain JSON

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negate : false (boolean)

operator : OR (string)

}

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}

]

cveTags : [ *empty* ]

descriptions : [ »

0 : { »

lang : en (string)

value : In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix error handling of scsi_host_alloc() After device is initialized via device_initialize(), or its name is set via dev_set_name(), the device has to be freed via put_device(). Otherwise device name will be leaked because it is allocated dynamically in dev_set_name(). Fix the leak by replacing kfree() with put_device(). Since scsi_host_dev_release() properly handles IDA and kthread removal, remove special-casing these from the error handling as well. (string)

}

1 : { »

lang : es (string)

value : En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: core: corrige el manejo de errores de scsi_host_alloc(). Después de que el dispositivo se inicializa mediante device_initialize(), o su nombre se establece mediante dev_set_name(), el dispositivo debe liberarse mediante put_device (). De lo contrario, se filtrará el nombre del dispositivo porque se asigna dinámicamente en dev_set_name(). Solucione la fuga reemplazando kfree() con put_device(). Dado que scsi_host_dev_release() maneja adecuadamente la eliminación de IDA y kthread, elimine también estas mayúsculas y minúsculas especiales del manejo de errores. (string)

}

]

id : CVE-2021-47258 (string)

lastModified : 2025-04-30T15:05:14.067 (string)

metrics : { »

cvssMetricV31 : [ »

0 : { »

cvssData : { »

attackComplexity : LOW (string)

attackVector : LOCAL (string)

availabilityImpact : HIGH (string)

baseScore : 5.5 (number)

baseSeverity : MEDIUM (string)

confidentialityImpact : NONE (string)

integrityImpact : NONE (string)

privilegesRequired : LOW (string)

scope : UNCHANGED (string)

userInteraction : NONE (string)

vectorString : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (string)

version : 3.1 (string)

}

exploitabilityScore : 1.8 (number)

impactScore : 3.6 (number)

source : nvd@nist.gov (string)

type : Primary (string)

}

]

}

published : 2024-05-21T15:15:14.537 (string)

references : [ »

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sourceIdentifier : 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (string)

vulnStatus : Analyzed (string)

weaknesses : [ »

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description : [ »

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source : nvd@nist.gov (string)

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}

Show plain JSON

{"bugzilla": {"description": "kernel: scsi: core: Fix error handling of scsi_host_alloc()", "id": "2282549", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282549"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L", "status": "draft"}, "cwe": "CWE-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nscsi: core: Fix error handling of scsi_host_alloc()\nAfter device is initialized via device_initialize(), or its name is set via\ndev_set_name(), the device has to be freed via put_device().  Otherwise\ndevice name will be leaked because it is allocated dynamically in\ndev_set_name().\nFix the leak by replacing kfree() with put_device(). Since\nscsi_host_dev_release() properly handles IDA and kthread removal, remove\nspecial-casing these from the error handling as well."], "name": "CVE-2021-47258", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47258\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47258\nhttps://lore.kernel.org/linux-cve-announce/2024052146-CVE-2021-47258-f276@gregkh/T"], "threat_severity": "Low"}

{

bugzilla : { »

description : kernel: scsi: core: Fix error handling of scsi_host_alloc() (string)

id : 2282549 (string)

url : https://bugzilla.redhat.com/show_bug.cgi?id=2282549 (string)

}

csaw : false (boolean)

cvss3 : { »

cvss3_base_score : 6.1 (string)

cvss3_scoring_vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L (string)

status : draft (string)

}

cwe : CWE-402 (string)

details : [ »

0 : In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix error handling of scsi_host_alloc() After device is initialized via device_initialize(), or its name is set via dev_set_name(), the device has to be freed via put_device(). Otherwise device name will be leaked because it is allocated dynamically in dev_set_name(). Fix the leak by replacing kfree() with put_device(). Since scsi_host_dev_release() properly handles IDA and kthread removal, remove special-casing these from the error handling as well. (string)

]

name : CVE-2021-47258 (string)

package_state : [ »

0 : { »

cpe : cpe:/o:redhat:enterprise_linux:6 (string)

fix_state : Out of support scope (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 6 (string)

}

1 : { »

cpe : cpe:/o:redhat:enterprise_linux:7 (string)

fix_state : Out of support scope (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 7 (string)

}

2 : { »

cpe : cpe:/o:redhat:enterprise_linux:7 (string)

fix_state : Out of support scope (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 7 (string)

}

3 : { »

cpe : cpe:/o:redhat:enterprise_linux:8 (string)

fix_state : Affected (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 8 (string)

}

4 : { »

cpe : cpe:/o:redhat:enterprise_linux:8 (string)

fix_state : Affected (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 8 (string)

}

5 : { »

cpe : cpe:/o:redhat:enterprise_linux:9 (string)

fix_state : Not affected (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 9 (string)

}

6 : { »

cpe : cpe:/o:redhat:enterprise_linux:9 (string)

fix_state : Not affected (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 9 (string)

}

]

public_date : 2024-05-21T00:00:00Z (string)

references : [ »

0 : https://www.cve.org/CVERecord?id=CVE-2021-47258 https://nvd.nist.gov/vuln/detail/CVE-2021-47258 https://lore.kernel.org/linux-cve-announce/2024052146-CVE-2021-47258-f276@gregkh/T (string)

]

threat_severity : Low (string)

}

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Affected Vendors & Products

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Affected Vendors & Products

JSON object

JSON object

JSON object

JSON object