{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-46949", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-25T13:45:52.722Z", "datePublished": "2024-02-27T18:40:33.496Z", "dateUpdated": "2026-05-11T13:45:00.531Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:45:00.531Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: farch: fix TX queue lookup in TX flush done handling\n\nWe're starting from a TXQ instance number ('qid'), not a TXQ type, so\n efx_get_tx_queue() is inappropriate (and could return NULL, leading\n 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": "fb791572d6747ef385f628450f8d57cd132e6e5a", "status": "affected", "versionType": "git"}, {"version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "a1570985ec04116cc665b760faf666a104154170", "status": "affected", "versionType": "git"}, {"version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "98d91180748986bfb6dfb3e72765f3225719a647", "status": "affected", "versionType": "git"}, {"version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "5b1faa92289b53cad654123ed2bc8e10f6ddd4ac", "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/fb791572d6747ef385f628450f8d57cd132e6e5a"}, {"url": "https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170"}, {"url": "https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647"}, {"url": "https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac"}], "title": "sfc: farch: fix TX queue lookup in TX flush done handling", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:43.114Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/fb791572d6747ef385f628450f8d57cd132e6e5a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46949", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:01:44.425098Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:51.049Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/fb791572d6747ef385f628450f8d57cd132e6e5a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:43.114Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46949", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:01:44.425098Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:19.175Z"}}], "cna": {"title": "sfc: farch: fix TX queue lookup in TX flush done 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": "fb791572d6747ef385f628450f8d57cd132e6e5a", "versionType": "git"}, {"status": "affected", "version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "a1570985ec04116cc665b760faf666a104154170", "versionType": "git"}, {"status": "affected", "version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "98d91180748986bfb6dfb3e72765f3225719a647", "versionType": "git"}, {"status": "affected", "version": "12804793b17c0e19115a90d98f2f3df0cb79e233", "lessThan": "5b1faa92289b53cad654123ed2bc8e10f6ddd4ac", "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/fb791572d6747ef385f628450f8d57cd132e6e5a"}, {"url": "https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170"}, {"url": "https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647"}, {"url": "https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac"}], "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 flush done handling\n\nWe're starting from a TXQ instance number ('qid'), not a TXQ type, so\n efx_get_tx_queue() is inappropriate (and could return NULL, leading\n 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": "2026-05-11T13:45:00.531Z"}}}, "cveMetadata": {"cveId": "CVE-2021-46949", "state": "PUBLISHED", "dateUpdated": "2026-05-11T13:45:00.531Z", "dateReserved": "2024-02-25T13:45:52.722Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-27T18:40:33.496Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"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 flush done handling\n\nWe're starting from a TXQ instance number ('qid'), not a TXQ type, so\n efx_get_tx_queue() is inappropriate (and could return NULL, leading\n to panics)."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: sfc: farch: corrige la b\u00fasqueda de la cola TX en el manejo finalizado del vaciado TX. Estamos comenzando desde un n\u00famero de instancia TXQ ('qid'), no un tipo TXQ, por lo que efx_get_tx_queue() es inapropiado (y podr\u00eda devolver NULL, lo que provocar\u00eda p\u00e1nico)."}], "id": "CVE-2021-46949", "lastModified": "2024-11-21T06:35:00.553", "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": "2024-02-27T19:04:06.373", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fb791572d6747ef385f628450f8d57cd132e6e5a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fb791572d6747ef385f628450f8d57cd132e6e5a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: sfc: farch: fix TX queue lookup in TX flush done handling", "id": "2266477", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2266477"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsfc: farch: fix TX queue lookup in TX flush done handling\nWe're starting from a TXQ instance number ('qid'), not a TXQ type, so\nefx_get_tx_queue() is inappropriate (and could return NULL, leading\nto panics)."], "name": "CVE-2021-46949", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not 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": "2024-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-46949\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-46949\nhttps://lore.kernel.org/linux-cve-announce/20240227184057.2368370-14-gregkh@linuxfoundation.org/T/#u"], "threat_severity": "Low"}

{}