CVE-2021-47398 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix kernel pointer leak Pointers should be printed with %p or %px rather than cast to 'unsigned long long' and printed with %llx. Change %llx to %p to print the secured pointer.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc3::::::

No data.

References

Link	Providers
https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5
https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98
https://lore.kernel.org/linux-cve-announce/2024052148-CVE-2021-47398-9acb@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47398
https://www.cve.org/CVERecord?id=CVE-2021-47398

History

Fri, 19 Sep 2025 14:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-401
CPEs		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:5.15:rc1:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc2:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc3::::::
Metrics	cvssV3_1 `{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'}`	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'}`

Mon, 04 Nov 2024 12:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-21T15:03:54.066Z

Updated: 2025-05-04T07:10:08.898Z

Reserved: 2024-05-21T14:58:30.816Z

Link: CVE-2021-47398

Vulnrichment

Updated: 2024-08-04T05:39:59.737Z

NVD

Status : Analyzed

Published: 2024-05-21T15:15:25.247

Modified: 2025-09-19T14:28:59.223

Link: CVE-2021-47398

Redhat

Severity : Low

Publid Date: 2024-05-21T00:00:00Z

Links: CVE-2021-47398 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47398", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T14:58:30.816Z", "datePublished": "2024-05-21T15:03:54.066Z", "dateUpdated": "2025-05-04T07:10:08.898Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:10:08.898Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Fix kernel pointer leak\n\nPointers should be printed with %p or %px rather than cast to 'unsigned\nlong long' and printed with %llx. Change %llx to %p to print the secured\npointer."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/hfi1/ipoib_tx.c"], "versions": [{"version": "042a00f93aad5874937e00f36e68301f7e3a0af1", "lessThan": "714bfabe5f2901d96902e271d7217601fe4703e5", "status": "affected", "versionType": "git"}, {"version": "042a00f93aad5874937e00f36e68301f7e3a0af1", "lessThan": "7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98", "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/infiniband/hw/hfi1/ipoib_tx.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.14.10", "lessThanOrEqual": "5.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15", "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": "5.13", "versionEndExcluding": "5.14.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5"}, {"url": "https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98"}], "title": "RDMA/hfi1: Fix kernel pointer leak", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-11T17:46:59.052914Z", "id": "CVE-2021-47398", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-11T17:50:30.755Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.737Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.737Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47398", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-11T17:46:59.052914Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-11T17:50:21.508Z"}}], "cna": {"title": "RDMA/hfi1: Fix kernel pointer leak", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "042a00f93aad5874937e00f36e68301f7e3a0af1", "lessThan": "714bfabe5f2901d96902e271d7217601fe4703e5", "versionType": "git"}, {"status": "affected", "version": "042a00f93aad5874937e00f36e68301f7e3a0af1", "lessThan": "7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98", "versionType": "git"}], "programFiles": ["drivers/infiniband/hw/hfi1/ipoib_tx.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.13"}, {"status": "unaffected", "version": "0", "lessThan": "5.13", "versionType": "semver"}, {"status": "unaffected", "version": "5.14.10", "versionType": "semver", "lessThanOrEqual": "5.14.*"}, {"status": "unaffected", "version": "5.15", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/hw/hfi1/ipoib_tx.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5"}, {"url": "https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Fix kernel pointer leak\n\nPointers should be printed with %p or %px rather than cast to 'unsigned\nlong long' and printed with %llx. Change %llx to %p to print the secured\npointer."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.14.10", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15", "versionStartIncluding": "5.13"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:10:08.898Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47398", "state": "PUBLISHED", "dateUpdated": "2025-05-04T07:10:08.898Z", "dateReserved": "2024-05-21T14:58:30.816Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-21T15:03:54.066Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F568C3FC-1C1C-4E75-A84A-6AC89AF20681", "versionEndExcluding": "5.14.10", "versionStartIncluding": "5.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*", "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Fix kernel pointer leak\n\nPointers should be printed with %p or %px rather than cast to 'unsigned\nlong long' and printed with %llx. Change %llx to %p to print the secured\npointer."}, {"lang": "es", "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: RDMA/hfi1: corrige la fuga del puntero del kernel. Los punteros deben imprimirse con %p o %px en lugar de convertirlos a 'unsigned long long' e imprimirse con %llx. Cambie %llx a %p para imprimir el puntero seguro."}], "id": "CVE-2021-47398", "lastModified": "2025-09-19T14:28:59.223", "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": "[email protected]", "type": "Primary"}]}, "published": "2024-05-21T15:15:25.247", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "[email protected]", "type": "Primary"}]}