{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74678",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.925Z",
        "datePublished": "2026-08-22T15:32:46.765Z",
        "dateUpdated": "2026-08-22T15:32:46.765Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:32:46.765Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: ax88179_178a: fix skb leak in ax88179_tx_fixup()\n\nWhen the interface has NETIF_F_SG enabled and skb_linearize() fails in\nax88179_tx_fixup(), the function returns NULL without freeing the skb.\n\nusbnet_start_xmit() treats a NULL return from tx_fixup() as a drop\n(info->flags does not set FLAG_MULTI_PACKET for this driver), jumping\nto the \"drop\" label where it does `if (skb) dev_kfree_skb_any(skb)`.\nBecause tx_fixup() returned NULL, the local skb variable in\nusbnet_start_xmit() is NULL, so the original skb is never freed — a\nmemory leak on every TX frame whose linearization fails (i.e. under\nmemory pressure).\n\nFree the skb before returning, matching the error handling already used\nfor the pskb_expand_head() failure path in the same function."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/usb/ax88179_178a.c"
                    ],
                    "versions": [
                        {
                            "version": "16b1c4e01c89ba07367461e0bc4cb84993c2d027",
                            "lessThan": "83a765cbd7b4d11b0b9fa1bb9d941ae911a2159b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16b1c4e01c89ba07367461e0bc4cb84993c2d027",
                            "lessThan": "1c63303659a2264bd55d9813df74cb4caeed5922",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16b1c4e01c89ba07367461e0bc4cb84993c2d027",
                            "lessThan": "2be5091fa693b9119ad25a8bb8c149d236a23ade",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16b1c4e01c89ba07367461e0bc4cb84993c2d027",
                            "lessThan": "58733b1dd46bb231d9d279c132a20ee46da1b664",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16b1c4e01c89ba07367461e0bc4cb84993c2d027",
                            "lessThan": "4039cd807a5a46dc5f7618fffae926b8ad8455eb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16b1c4e01c89ba07367461e0bc4cb84993c2d027",
                            "lessThan": "1f428e30947395d9b9aacee03e25a4e6cfcad7a4",
                            "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/usb/ax88179_178a.c"
                    ],
                    "versions": [
                        {
                            "version": "5.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.152",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.104",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.45",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.9",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "5.17",
                                    "versionEndExcluding": "6.1.183"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.6.152"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.12.104"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.18.45"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/83a765cbd7b4d11b0b9fa1bb9d941ae911a2159b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1c63303659a2264bd55d9813df74cb4caeed5922"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2be5091fa693b9119ad25a8bb8c149d236a23ade"
                },
                {
                    "url": "https://git.kernel.org/stable/c/58733b1dd46bb231d9d279c132a20ee46da1b664"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4039cd807a5a46dc5f7618fffae926b8ad8455eb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1f428e30947395d9b9aacee03e25a4e6cfcad7a4"
                }
            ],
            "title": "net: usb: ax88179_178a: fix skb leak in ax88179_tx_fixup()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}