CVE-2021-46948 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved:

sfc: farch: fix TX queue lookup in TX event handling

We're starting from a TXQ label, not a TXQ type, so
efx_channel_get_tx_queue() is inappropriate (and could return NULL,
leading to panics).

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.

The EPSS score is 0.00018.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux Subscribe	Linux Kernel Subscribe

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052
https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e
https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253
https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c
https://lore.kernel.org/linux-cve-announce/20240227184057.2368370-13-gregkh@linuxfoundation.org/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-46948
https://www.cve.org/CVERecord?id=CVE-2021-46948

History

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'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-27T18:40:32.895Z

Updated: 2025-05-04T07:00:58.597Z

Reserved: 2024-02-25T13:45:52.722Z

Link: CVE-2021-46948

Vulnrichment

Updated: 2024-08-04T05:17:43.029Z

NVD

Status : Modified

Published: 2024-02-27T19:04:06.330

Modified: 2024-11-21T06:34:59.987

Link: CVE-2021-46948

Redhat

Severity : Low

Publid Date: 2024-02-27T00:00:00Z

Links: CVE-2021-46948 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

CWE-476

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-46948", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-25T13:45:52.722Z", "datePublished": "2024-02-27T18:40:32.895Z", "dateUpdated": "2025-05-04T07:00:58.597Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:00:58.597Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: farch: fix TX queue lookup in TX event handling\n\nWe're starting from a TXQ label, not a TXQ type, so\n efx_channel_get_tx_queue() is inappropriate (and could return NULL,\n leading to panics)."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/sfc/farch.c"], "versions": [{"version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253", "status": "affected", "versionType": "git"}, {"version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "35c7a83ad1bb1d48ae249346e61b1132bcbf9052", "status": "affected", "versionType": "git"}, {"version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "e531db1ea6f98c9612cb2de093a107c7eadfb96c", "status": "affected", "versionType": "git"}, {"version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "83b09a1807415608b387c7bc748d329fefc5617e", "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/net/ethernet/sfc/farch.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.36", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.11.20", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.3", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "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": "5.10", "versionEndExcluding": "5.10.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.11.20"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.12.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253"}, {"url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052"}, {"url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c"}, {"url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e"}], "title": "sfc: farch: fix TX queue lookup in TX event handling", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46948", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-11T16:39:46.469007Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:22:13.138Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:43.029Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:43.029Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46948", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-11T16:39:46.469007Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T15:20:41.602Z"}}], "cna": {"title": "sfc: farch: fix TX queue lookup in TX event handling", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253", "versionType": "git"}, {"status": "affected", "version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "35c7a83ad1bb1d48ae249346e61b1132bcbf9052", "versionType": "git"}, {"status": "affected", "version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "e531db1ea6f98c9612cb2de093a107c7eadfb96c", "versionType": "git"}, {"status": "affected", "version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "83b09a1807415608b387c7bc748d329fefc5617e", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/sfc/farch.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.36", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.11.20", "versionType": "semver", "lessThanOrEqual": "5.11.*"}, {"status": "unaffected", "version": "5.12.3", "versionType": "semver", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/sfc/farch.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253"}, {"url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052"}, {"url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c"}, {"url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: farch: fix TX queue lookup in TX event handling\n\nWe're starting from a TXQ label, not a TXQ type, so\n efx_channel_get_tx_queue() is inappropriate (and could return NULL,\n leading to panics)."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.36", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.11.20", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.12.3", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.13", "versionStartIncluding": "5.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:00:58.597Z"}}}, "cveMetadata": {"cveId": "CVE-2021-46948", "state": "PUBLISHED", "dateUpdated": "2025-05-04T07:00:58.597Z", "dateReserved": "2024-02-25T13:45:52.722Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-27T18:40:32.895Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4E778606-3A80-42DD-996C-5570B1192986", "versionEndExcluding": "5.10.36", "versionStartIncluding": "5.10.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EFB425F0-C28C-4B44-8B4C-AD512AA832DE", "versionEndExcluding": "5.11.20", "versionStartIncluding": "5.11.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C3814FA3-8141-4313-A852-8C4212BE12AD", "versionEndExcluding": "5.12.3", "versionStartIncluding": "5.12.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: farch: fix TX queue lookup in TX event handling\n\nWe're starting from a TXQ label, not a TXQ type, so\n efx_channel_get_tx_queue() is inappropriate (and could return NULL,\n leading to panics)."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: sfc: farch: corrige la b\u00fasqueda de cola TX en el manejo de eventos TX Estamos comenzando desde una etiqueta TXQ, no un tipo TXQ, por lo que efx_channel_get_tx_queue() es inapropiado (y podr\u00eda devolver NULL, provocando p\u00e1nico)."}], "id": "CVE-2021-46948", "lastModified": "2024-11-21T06:34:59.987", "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": "2024-02-27T19:04:06.330", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}