CVE-2026-52983

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52983", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.376Z", "datePublished": "2026-06-24T16:28:58.437Z", "dateUpdated": "2026-10-21T12:41:43.028Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:41:43.028Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: fix BQL imbalance in TX path\n\nFix a possible BQL imbalance in airoha_dev_xmit(), where inflight\npackets are accounted only for the AIROHA_NUM_TX_RING netdev TX\nqueues. The queue index is computed as:\n\n qid = skb_get_queue_mapping(skb) % ARRAY_SIZE(qdma->q_tx)\n txq = netdev_get_tx_queue(dev, qid);\n\nHowever, airoha_qdma_tx_napi_poll() accounts completions across all\nnetdev TX queues (num_tx_queues), leading to inconsistent BQL\naccounting.\n\nAlso reset all netdev TX queues in the ndo_stop callback."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - The vulnerable path is the Airoha Ethernet transmit path, and in a reasonable router/gateway or server deployment remote unauthenticated traffic can be forwarded or elicit responses transmitted through the affected interface.\nAC:L - Once HTB offload/extra TX queues are present, packets mapped to those queues deterministically create mismatched BQL accounting and the TX completion path reaches dql_completed(); no race or hard-to-win condition is required.\nPR:N - The attacker does not need credentials to send or induce network traffic through the configured interface; CAP_NET_ADMIN is only needed to create the traffic-shaping setup and may already be present in the deployed system.\nUI:N - No victim interaction is required after the affected network interface and queue configuration are active.\nS:U - The impact remains within the Linux kernel/network device security authority and does not cross a VM, IOMMU, or other separate security boundary.\nC:N - The bug is a BQL accounting mismatch that triggers a BUG_ON in dql_completed, not a memory disclosure or memory corruption primitive.\nI:N - The investigated path does not provide arbitrary write, data modification, or control-flow corruption; it fails through a kernel assertion.\nA:H - The mismatched completion accounting can trigger a kernel BUG/oops in the TX completion path, causing a system crash or denial of service."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/airoha/airoha_eth.c"], "versions": [{"version": "ca24fcac1daaa5e8a667981d81986a3eb4b9fb04", "lessThan": "fcd6a3bb48bb661876c2743e89f0a6567f5cea2c", "status": "affected", "versionType": "git"}, {"version": "1d304174106c93ce05f6088813ad7203b3eb381a", "lessThan": "aaad53a55812acd2355c0e5478896381e78b0110", "status": "affected", "versionType": "git"}, {"version": "1d304174106c93ce05f6088813ad7203b3eb381a", "lessThan": "ded2694247a55a16d0ebbe2d6f9139305c21457a", "status": "affected", "versionType": "git"}, {"version": "1d304174106c93ce05f6088813ad7203b3eb381a", "lessThan": "2d9f5a118205da2683ffcec78b9347f1f01a820e", "status": "affected", "versionType": "git"}, {"version": "6.12.91", "lessThan": "6.12.114", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/airoha/airoha_eth.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.12.91", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fcd6a3bb48bb661876c2743e89f0a6567f5cea2c"}, {"url": "https://git.kernel.org/stable/c/aaad53a55812acd2355c0e5478896381e78b0110"}, {"url": "https://git.kernel.org/stable/c/ded2694247a55a16d0ebbe2d6f9139305c21457a"}, {"url": "https://git.kernel.org/stable/c/2d9f5a118205da2683ffcec78b9347f1f01a820e"}], "title": "net: airoha: fix BQL imbalance in TX path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/airoha/airoha_eth.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fcd6a3bb48bb661876c2743e89f0a6567f5cea2c", "status": "affected", "version": "ca24fcac1daaa5e8a667981d81986a3eb4b9fb04", "versionType": "git"}, {"lessThan": "aaad53a55812acd2355c0e5478896381e78b0110", "status": "affected", "version": "1d304174106c93ce05f6088813ad7203b3eb381a", "versionType": "git"}, {"lessThan": "ded2694247a55a16d0ebbe2d6f9139305c21457a", "status": "affected", "version": "1d304174106c93ce05f6088813ad7203b3eb381a", "versionType": "git"}, {"lessThan": "2d9f5a118205da2683ffcec78b9347f1f01a820e", "status": "affected", "version": "1d304174106c93ce05f6088813ad7203b3eb381a", "versionType": "git"}, {"lessThan": "6.12.114", "status": "affected", "version": "6.12.91", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/airoha/airoha_eth.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.33", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F37EBC4F-8C85-4176-943F-B82C14348311", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.12.91", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: fix BQL imbalance in TX path\n\nFix a possible BQL imbalance in airoha_dev_xmit(), where inflight\npackets are accounted only for the AIROHA_NUM_TX_RING netdev TX\nqueues. The queue index is computed as:\n\n qid = skb_get_queue_mapping(skb) % ARRAY_SIZE(qdma->q_tx)\n txq = netdev_get_tx_queue(dev, qid);\n\nHowever, airoha_qdma_tx_napi_poll() accounts completions across all\nnetdev TX queues (num_tx_queues), leading to inconsistent BQL\naccounting.\n\nAlso reset all netdev TX queues in the ndo_stop callback."}], "id": "CVE-2026-52983", "lastModified": "2026-10-21T13:19:07.527", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-06-24T17:17:09.030", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2d9f5a118205da2683ffcec78b9347f1f01a820e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aaad53a55812acd2355c0e5478896381e78b0110"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ded2694247a55a16d0ebbe2d6f9139305c21457a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fcd6a3bb48bb661876c2743e89f0a6567f5cea2c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: airoha: fix BQL imbalance in TX path", "id": "2492414", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492414"}, "csaw": false, "cwe": "CWE-821", "details": ["A flaw was found in the Linux kernel's airoha network driver. This vulnerability stems from an inconsistent accounting of inflight packets in the transmit (TX) path, leading to a Byte Queue Limit (BQL) imbalance. This issue could potentially result in network performance degradation or a denial of service (DoS) condition."], "name": "CVE-2026-52983", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52983\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52983\nhttps://lore.kernel.org/linux-cve-announce/2026062442-CVE-2026-52983-ceac@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1d304174106c93ce05f6088813ad7203b3eb381a,aaad53a55812acd2355c0e5478896381e78b0110)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1d304174106c93ce05f6088813ad7203b3eb381a,ded2694247a55a16d0ebbe2d6f9139305c21457a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1d304174106c93ce05f6088813ad7203b3eb381a,2d9f5a118205da2683ffcec78b9347f1f01a820e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "ca24fcac1daaa5e8a667981d81986a3eb4b9fb04"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.33,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0.10,7.0.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T19:45:05.749898+00:00", "updated": "2026-08-12T06:00:11.036829+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}