{
    "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": "2026-08-05T12:32:21.385Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:32:21.385Z"
            },
            "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": "1d304174106c93ce05f6088813ad7203b3eb381a",
                            "lessThan": "aaad53a55812acd2355c0e5478896381e78b0110",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1d304174106c93ce05f6088813ad7203b3eb381a",
                            "lessThan": "ded2694247a55a16d0ebbe2d6f9139305c21457a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1d304174106c93ce05f6088813ad7203b3eb381a",
                            "lessThan": "2d9f5a118205da2683ffcec78b9347f1f01a820e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ca24fcac1daaa5e8a667981d81986a3eb4b9fb04",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.91",
                            "lessThan": "6.13",
                            "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": "6.18.33",
                            "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": "6.13",
                                    "versionEndExcluding": "6.18.33"
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            "references": [
                {
                    "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",
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}